text:
// Copyright (C) 2020 T. Zachary Laine
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)

// Warning! This file is autogenerated.
#include <boost/text/bidirectional.hpp>

#include "bidi_tests.hpp"

#include <gtest/gtest.h>

#include <algorithm>

std::vector<int> expected_levels;
std::vector<int> expected_reordered_indices;

TEST(bidi, bidi_937_000)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // AL L EN EN; 5 ('auto') (line 468501)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L EN EN; 5 ('RTL') (line 468501)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L EN ET; 5 ('auto') (line 468502)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L EN ET; 5 ('RTL') (line 468502)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L EN AN; 5 ('auto') (line 468503)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L EN AN; 5 ('RTL') (line 468503)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L EN NSM; 5 ('auto') (line 468504)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L EN NSM; 5 ('RTL') (line 468504)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L ES L; 5 ('auto') (line 468505)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x002B, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L ES L; 5 ('RTL') (line 468505)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x002B, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L ES EN; 5 ('auto') (line 468506)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x002B, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L ES EN; 5 ('RTL') (line 468506)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x002B, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L ET L; 5 ('auto') (line 468507)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0023, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L ET L; 5 ('RTL') (line 468507)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0023, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L ET EN; 5 ('auto') (line 468508)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L ET EN; 5 ('RTL') (line 468508)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L AN L; 5 ('auto') (line 468509)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L AN L; 5 ('RTL') (line 468509)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L AN EN; 5 ('auto') (line 468510)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L AN EN; 5 ('RTL') (line 468510)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_001)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // AL L AN AN; 5 ('auto') (line 468511)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L AN AN; 5 ('RTL') (line 468511)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L AN NSM; 5 ('auto') (line 468512)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L AN NSM; 5 ('RTL') (line 468512)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L CS L; 5 ('auto') (line 468513)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x002C, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L CS L; 5 ('RTL') (line 468513)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x002C, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L CS EN; 5 ('auto') (line 468514)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L CS EN; 5 ('RTL') (line 468514)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L NSM L; 5 ('auto') (line 468515)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L NSM L; 5 ('RTL') (line 468515)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L NSM EN; 5 ('auto') (line 468516)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L NSM EN; 5 ('RTL') (line 468516)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L NSM AN; 5 ('auto') (line 468517)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L NSM AN; 5 ('RTL') (line 468517)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L NSM NSM; 5 ('auto') (line 468518)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L NSM NSM; 5 ('RTL') (line 468518)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L WS L; 5 ('auto') (line 468519)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0020, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L WS L; 5 ('RTL') (line 468519)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0020, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L WS EN; 5 ('auto') (line 468520)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0020, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L WS EN; 5 ('RTL') (line 468520)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0020, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_002)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // AL L ON L; 5 ('auto') (line 468521)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0021, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L ON L; 5 ('RTL') (line 468521)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0021, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L ON EN; 5 ('auto') (line 468522)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0021, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L ON EN; 5 ('RTL') (line 468522)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x0021, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L PDI L; 5 ('auto') (line 468523)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x2069, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L PDI L; 5 ('RTL') (line 468523)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x2069, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L PDI EN; 5 ('auto') (line 468524)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x2069, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL L PDI EN; 5 ('RTL') (line 468524)
        std::vector<uint32_t> const cps = { 0x0608, 0x0041, 0x2069, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN L L; 5 ('auto') (line 468525)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN L L; 5 ('RTL') (line 468525)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN L EN; 5 ('auto') (line 468526)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN L EN; 5 ('RTL') (line 468526)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN L AN; 5 ('auto') (line 468527)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN L AN; 5 ('RTL') (line 468527)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN L NSM; 5 ('auto') (line 468528)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN L NSM; 5 ('RTL') (line 468528)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN EN L; 5 ('auto') (line 468529)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN EN L; 5 ('RTL') (line 468529)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN EN EN; 7 ('auto') (line 468530)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN EN EN; 7 ('LTR') (line 468530)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN EN EN; 7 ('RTL') (line 468530)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_003)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // AL EN EN AN; 7 ('auto') (line 468531)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN EN AN; 7 ('LTR') (line 468531)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN EN AN; 7 ('RTL') (line 468531)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN EN NSM; 7 ('auto') (line 468532)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN EN NSM; 7 ('LTR') (line 468532)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN EN NSM; 7 ('RTL') (line 468532)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN AN L; 5 ('auto') (line 468533)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN AN L; 5 ('RTL') (line 468533)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN AN EN; 7 ('auto') (line 468534)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN AN EN; 7 ('LTR') (line 468534)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN AN EN; 7 ('RTL') (line 468534)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN AN AN; 7 ('auto') (line 468535)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN AN AN; 7 ('LTR') (line 468535)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN AN AN; 7 ('RTL') (line 468535)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN AN NSM; 7 ('auto') (line 468536)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN AN NSM; 7 ('LTR') (line 468536)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN AN NSM; 7 ('RTL') (line 468536)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN CS EN; 7 ('auto') (line 468537)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN CS EN; 7 ('LTR') (line 468537)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN CS EN; 7 ('RTL') (line 468537)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN CS AN; 7 ('auto') (line 468538)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x002C, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN CS AN; 7 ('LTR') (line 468538)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x002C, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN CS AN; 7 ('RTL') (line 468538)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x002C, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN NSM L; 5 ('auto') (line 468539)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN NSM L; 5 ('RTL') (line 468539)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN NSM EN; 7 ('auto') (line 468540)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN NSM EN; 7 ('LTR') (line 468540)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN NSM EN; 7 ('RTL') (line 468540)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_004)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // AL EN NSM AN; 7 ('auto') (line 468541)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN NSM AN; 7 ('LTR') (line 468541)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN NSM AN; 7 ('RTL') (line 468541)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN NSM NSM; 7 ('auto') (line 468542)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN NSM NSM; 7 ('LTR') (line 468542)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL EN NSM NSM; 7 ('RTL') (line 468542)
        std::vector<uint32_t> const cps = { 0x0608, 0x0030, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN L L; 5 ('auto') (line 468543)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN L L; 5 ('RTL') (line 468543)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN L EN; 5 ('auto') (line 468544)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN L EN; 5 ('RTL') (line 468544)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN L AN; 5 ('auto') (line 468545)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN L AN; 5 ('RTL') (line 468545)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN L NSM; 5 ('auto') (line 468546)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN L NSM; 5 ('RTL') (line 468546)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN EN L; 5 ('auto') (line 468547)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN EN L; 5 ('RTL') (line 468547)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN EN EN; 7 ('auto') (line 468548)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN EN EN; 7 ('LTR') (line 468548)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN EN EN; 7 ('RTL') (line 468548)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN EN AN; 7 ('auto') (line 468549)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN EN AN; 7 ('LTR') (line 468549)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN EN AN; 7 ('RTL') (line 468549)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN EN NSM; 7 ('auto') (line 468550)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN EN NSM; 7 ('LTR') (line 468550)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN EN NSM; 7 ('RTL') (line 468550)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_005)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // AL AN AN L; 5 ('auto') (line 468551)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN AN L; 5 ('RTL') (line 468551)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN AN EN; 7 ('auto') (line 468552)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN AN EN; 7 ('LTR') (line 468552)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN AN EN; 7 ('RTL') (line 468552)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN AN AN; 7 ('auto') (line 468553)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN AN AN; 7 ('LTR') (line 468553)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN AN AN; 7 ('RTL') (line 468553)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN AN NSM; 7 ('auto') (line 468554)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN AN NSM; 7 ('LTR') (line 468554)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN AN NSM; 7 ('RTL') (line 468554)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN CS EN; 7 ('auto') (line 468555)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN CS EN; 7 ('LTR') (line 468555)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN CS EN; 7 ('RTL') (line 468555)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN CS AN; 7 ('auto') (line 468556)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x002C, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN CS AN; 7 ('LTR') (line 468556)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x002C, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN CS AN; 7 ('RTL') (line 468556)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x002C, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN NSM L; 5 ('auto') (line 468557)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN NSM L; 5 ('RTL') (line 468557)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN NSM EN; 7 ('auto') (line 468558)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN NSM EN; 7 ('LTR') (line 468558)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN NSM EN; 7 ('RTL') (line 468558)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN NSM AN; 7 ('auto') (line 468559)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN NSM AN; 7 ('LTR') (line 468559)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN NSM AN; 7 ('RTL') (line 468559)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN NSM NSM; 7 ('auto') (line 468560)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), -1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), -1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, -1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN NSM NSM; 7 ('LTR') (line 468560)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 0);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 0);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 0)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // AL AN NSM NSM; 7 ('RTL') (line 468560)
        std::vector<uint32_t> const cps = { 0x0608, 0x0660, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_006)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // ES L L L; 4 ('RTL') (line 468561)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L L EN; 4 ('RTL') (line 468562)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L L AN; 4 ('RTL') (line 468563)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L L NSM; 4 ('RTL') (line 468564)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L EN L; 4 ('RTL') (line 468565)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L EN EN; 4 ('RTL') (line 468566)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L EN ET; 4 ('RTL') (line 468567)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L EN AN; 4 ('RTL') (line 468568)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L EN NSM; 4 ('RTL') (line 468569)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L ES L; 4 ('RTL') (line 468570)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x002B, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_007)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // ES L ES EN; 4 ('RTL') (line 468571)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x002B, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L ET L; 4 ('RTL') (line 468572)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0023, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L ET EN; 4 ('RTL') (line 468573)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L AN L; 4 ('RTL') (line 468574)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L AN EN; 4 ('RTL') (line 468575)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L AN AN; 4 ('RTL') (line 468576)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L AN NSM; 4 ('RTL') (line 468577)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L CS L; 4 ('RTL') (line 468578)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x002C, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L CS EN; 4 ('RTL') (line 468579)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L NSM L; 4 ('RTL') (line 468580)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_008)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // ES L NSM EN; 4 ('RTL') (line 468581)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L NSM AN; 4 ('RTL') (line 468582)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L NSM NSM; 4 ('RTL') (line 468583)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L WS L; 4 ('RTL') (line 468584)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0020, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L WS EN; 4 ('RTL') (line 468585)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0020, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L ON L; 4 ('RTL') (line 468586)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0021, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L ON EN; 4 ('RTL') (line 468587)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x0021, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L PDI L; 4 ('RTL') (line 468588)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x2069, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES L PDI EN; 4 ('RTL') (line 468589)
        std::vector<uint32_t> const cps = { 0x002B, 0x0041, 0x2069, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN L L; 4 ('RTL') (line 468590)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_009)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // ES EN L EN; 4 ('RTL') (line 468591)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN L AN; 4 ('RTL') (line 468592)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN L NSM; 4 ('RTL') (line 468593)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN EN L; 4 ('RTL') (line 468594)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN EN EN; 4 ('RTL') (line 468595)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN EN ET; 4 ('RTL') (line 468596)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN EN AN; 4 ('RTL') (line 468597)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN EN NSM; 4 ('RTL') (line 468598)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN ES EN; 4 ('RTL') (line 468599)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x002B, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN ET L; 4 ('RTL') (line 468600)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0023, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_010)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // ES EN ET EN; 4 ('RTL') (line 468601)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN ET ET; 4 ('RTL') (line 468602)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0023, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN ET AN; 4 ('RTL') (line 468603)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0023, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN ET NSM; 4 ('RTL') (line 468604)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0023, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN AN L; 4 ('RTL') (line 468605)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN AN EN; 4 ('RTL') (line 468606)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN AN AN; 4 ('RTL') (line 468607)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN AN NSM; 4 ('RTL') (line 468608)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN CS EN; 4 ('RTL') (line 468609)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN NSM L; 4 ('RTL') (line 468610)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_011)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // ES EN NSM EN; 4 ('RTL') (line 468611)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN NSM ET; 4 ('RTL') (line 468612)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0300, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN NSM AN; 4 ('RTL') (line 468613)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES EN NSM NSM; 4 ('RTL') (line 468614)
        std::vector<uint32_t> const cps = { 0x002B, 0x0030, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES ET EN L; 4 ('RTL') (line 468615)
        std::vector<uint32_t> const cps = { 0x002B, 0x0023, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES ET EN EN; 4 ('RTL') (line 468616)
        std::vector<uint32_t> const cps = { 0x002B, 0x0023, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES ET EN ET; 4 ('RTL') (line 468617)
        std::vector<uint32_t> const cps = { 0x002B, 0x0023, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES ET EN AN; 4 ('RTL') (line 468618)
        std::vector<uint32_t> const cps = { 0x002B, 0x0023, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES ET EN NSM; 4 ('RTL') (line 468619)
        std::vector<uint32_t> const cps = { 0x002B, 0x0023, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES ET ET EN; 4 ('RTL') (line 468620)
        std::vector<uint32_t> const cps = { 0x002B, 0x0023, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_012)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // ES ET NSM EN; 4 ('RTL') (line 468621)
        std::vector<uint32_t> const cps = { 0x002B, 0x0023, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN L L; 4 ('RTL') (line 468622)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN L EN; 4 ('RTL') (line 468623)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN L AN; 4 ('RTL') (line 468624)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN L NSM; 4 ('RTL') (line 468625)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN EN L; 4 ('RTL') (line 468626)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN EN EN; 4 ('RTL') (line 468627)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN EN ET; 4 ('RTL') (line 468628)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN EN AN; 4 ('RTL') (line 468629)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN EN NSM; 4 ('RTL') (line 468630)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_013)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // ES AN ET EN; 4 ('RTL') (line 468631)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN AN L; 4 ('RTL') (line 468632)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN AN EN; 4 ('RTL') (line 468633)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN AN AN; 4 ('RTL') (line 468634)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN AN NSM; 4 ('RTL') (line 468635)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN CS AN; 4 ('RTL') (line 468636)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x002C, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN NSM L; 4 ('RTL') (line 468637)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN NSM EN; 4 ('RTL') (line 468638)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN NSM AN; 4 ('RTL') (line 468639)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ES AN NSM NSM; 4 ('RTL') (line 468640)
        std::vector<uint32_t> const cps = { 0x002B, 0x0660, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_014)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // ET L L L; 4 ('RTL') (line 468641)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L L EN; 4 ('RTL') (line 468642)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L L AN; 4 ('RTL') (line 468643)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L L NSM; 4 ('RTL') (line 468644)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L EN L; 4 ('RTL') (line 468645)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L EN EN; 4 ('RTL') (line 468646)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L EN ET; 4 ('RTL') (line 468647)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L EN AN; 4 ('RTL') (line 468648)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L EN NSM; 4 ('RTL') (line 468649)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L ES L; 4 ('RTL') (line 468650)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x002B, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_015)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // ET L ES EN; 4 ('RTL') (line 468651)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x002B, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L ET L; 4 ('RTL') (line 468652)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0023, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L ET EN; 4 ('RTL') (line 468653)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L AN L; 4 ('RTL') (line 468654)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L AN EN; 4 ('RTL') (line 468655)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L AN AN; 4 ('RTL') (line 468656)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L AN NSM; 4 ('RTL') (line 468657)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L CS L; 4 ('RTL') (line 468658)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x002C, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L CS EN; 4 ('RTL') (line 468659)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L NSM L; 4 ('RTL') (line 468660)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_016)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // ET L NSM EN; 4 ('RTL') (line 468661)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L NSM AN; 4 ('RTL') (line 468662)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L NSM NSM; 4 ('RTL') (line 468663)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L WS L; 4 ('RTL') (line 468664)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0020, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L WS EN; 4 ('RTL') (line 468665)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0020, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L ON L; 4 ('RTL') (line 468666)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0021, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L ON EN; 4 ('RTL') (line 468667)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x0021, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L PDI L; 4 ('RTL') (line 468668)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x2069, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET L PDI EN; 4 ('RTL') (line 468669)
        std::vector<uint32_t> const cps = { 0x0023, 0x0041, 0x2069, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN L L; 4 ('RTL') (line 468670)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_017)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // ET AN L EN; 4 ('RTL') (line 468671)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN L AN; 4 ('RTL') (line 468672)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN L NSM; 4 ('RTL') (line 468673)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN EN L; 4 ('RTL') (line 468674)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN EN EN; 4 ('RTL') (line 468675)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN EN ET; 4 ('RTL') (line 468676)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN EN AN; 4 ('RTL') (line 468677)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN EN NSM; 4 ('RTL') (line 468678)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN ET EN; 4 ('RTL') (line 468679)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN AN L; 4 ('RTL') (line 468680)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_018)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // ET AN AN EN; 4 ('RTL') (line 468681)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN AN AN; 4 ('RTL') (line 468682)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN AN NSM; 4 ('RTL') (line 468683)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN CS AN; 4 ('RTL') (line 468684)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x002C, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN NSM L; 4 ('RTL') (line 468685)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN NSM EN; 4 ('RTL') (line 468686)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN NSM AN; 4 ('RTL') (line 468687)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // ET AN NSM NSM; 4 ('RTL') (line 468688)
        std::vector<uint32_t> const cps = { 0x0023, 0x0660, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L L L; 4 ('RTL') (line 468689)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L L EN; 4 ('RTL') (line 468690)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_019)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // CS L L AN; 4 ('RTL') (line 468691)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L L NSM; 4 ('RTL') (line 468692)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L EN L; 4 ('RTL') (line 468693)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L EN EN; 4 ('RTL') (line 468694)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L EN ET; 4 ('RTL') (line 468695)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L EN AN; 4 ('RTL') (line 468696)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L EN NSM; 4 ('RTL') (line 468697)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L ES L; 4 ('RTL') (line 468698)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x002B, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L ES EN; 4 ('RTL') (line 468699)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x002B, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L ET L; 4 ('RTL') (line 468700)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0023, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_020)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // CS L ET EN; 4 ('RTL') (line 468701)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L AN L; 4 ('RTL') (line 468702)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L AN EN; 4 ('RTL') (line 468703)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L AN AN; 4 ('RTL') (line 468704)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L AN NSM; 4 ('RTL') (line 468705)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L CS L; 4 ('RTL') (line 468706)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x002C, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L CS EN; 4 ('RTL') (line 468707)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L NSM L; 4 ('RTL') (line 468708)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L NSM EN; 4 ('RTL') (line 468709)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L NSM AN; 4 ('RTL') (line 468710)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_021)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // CS L NSM NSM; 4 ('RTL') (line 468711)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L WS L; 4 ('RTL') (line 468712)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0020, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L WS EN; 4 ('RTL') (line 468713)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0020, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L ON L; 4 ('RTL') (line 468714)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0021, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L ON EN; 4 ('RTL') (line 468715)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x0021, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L PDI L; 4 ('RTL') (line 468716)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x2069, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS L PDI EN; 4 ('RTL') (line 468717)
        std::vector<uint32_t> const cps = { 0x002C, 0x0041, 0x2069, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN L L; 4 ('RTL') (line 468718)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN L EN; 4 ('RTL') (line 468719)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN L AN; 4 ('RTL') (line 468720)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_022)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // CS EN L NSM; 4 ('RTL') (line 468721)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN EN L; 4 ('RTL') (line 468722)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN EN EN; 4 ('RTL') (line 468723)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN EN ET; 4 ('RTL') (line 468724)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN EN AN; 4 ('RTL') (line 468725)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN EN NSM; 4 ('RTL') (line 468726)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN ES EN; 4 ('RTL') (line 468727)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x002B, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN ET L; 4 ('RTL') (line 468728)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0023, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN ET EN; 4 ('RTL') (line 468729)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN ET ET; 4 ('RTL') (line 468730)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0023, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_023)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // CS EN ET AN; 4 ('RTL') (line 468731)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0023, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN ET NSM; 4 ('RTL') (line 468732)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0023, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN AN L; 4 ('RTL') (line 468733)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN AN EN; 4 ('RTL') (line 468734)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN AN AN; 4 ('RTL') (line 468735)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN AN NSM; 4 ('RTL') (line 468736)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN CS EN; 4 ('RTL') (line 468737)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN NSM L; 4 ('RTL') (line 468738)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN NSM EN; 4 ('RTL') (line 468739)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN NSM ET; 4 ('RTL') (line 468740)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0300, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_024)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // CS EN NSM AN; 4 ('RTL') (line 468741)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS EN NSM NSM; 4 ('RTL') (line 468742)
        std::vector<uint32_t> const cps = { 0x002C, 0x0030, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS ET EN L; 4 ('RTL') (line 468743)
        std::vector<uint32_t> const cps = { 0x002C, 0x0023, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS ET EN EN; 4 ('RTL') (line 468744)
        std::vector<uint32_t> const cps = { 0x002C, 0x0023, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS ET EN ET; 4 ('RTL') (line 468745)
        std::vector<uint32_t> const cps = { 0x002C, 0x0023, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS ET EN AN; 4 ('RTL') (line 468746)
        std::vector<uint32_t> const cps = { 0x002C, 0x0023, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS ET EN NSM; 4 ('RTL') (line 468747)
        std::vector<uint32_t> const cps = { 0x002C, 0x0023, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS ET ET EN; 4 ('RTL') (line 468748)
        std::vector<uint32_t> const cps = { 0x002C, 0x0023, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS ET NSM EN; 4 ('RTL') (line 468749)
        std::vector<uint32_t> const cps = { 0x002C, 0x0023, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN L L; 4 ('RTL') (line 468750)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_025)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // CS AN L EN; 4 ('RTL') (line 468751)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN L AN; 4 ('RTL') (line 468752)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN L NSM; 4 ('RTL') (line 468753)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN EN L; 4 ('RTL') (line 468754)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN EN EN; 4 ('RTL') (line 468755)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN EN ET; 4 ('RTL') (line 468756)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN EN AN; 4 ('RTL') (line 468757)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN EN NSM; 4 ('RTL') (line 468758)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN ET EN; 4 ('RTL') (line 468759)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN AN L; 4 ('RTL') (line 468760)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_026)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // CS AN AN EN; 4 ('RTL') (line 468761)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN AN AN; 4 ('RTL') (line 468762)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN AN NSM; 4 ('RTL') (line 468763)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN CS AN; 4 ('RTL') (line 468764)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x002C, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN NSM L; 4 ('RTL') (line 468765)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN NSM EN; 4 ('RTL') (line 468766)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN NSM AN; 4 ('RTL') (line 468767)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // CS AN NSM NSM; 4 ('RTL') (line 468768)
        std::vector<uint32_t> const cps = { 0x002C, 0x0660, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L L L; 4 ('RTL') (line 468769)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L L EN; 4 ('RTL') (line 468770)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_027)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // NSM L L AN; 4 ('RTL') (line 468771)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L L NSM; 4 ('RTL') (line 468772)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L EN L; 4 ('RTL') (line 468773)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L EN EN; 4 ('RTL') (line 468774)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L EN ET; 4 ('RTL') (line 468775)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L EN AN; 4 ('RTL') (line 468776)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L EN NSM; 4 ('RTL') (line 468777)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L ES L; 4 ('RTL') (line 468778)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x002B, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L ES EN; 4 ('RTL') (line 468779)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x002B, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L ET L; 4 ('RTL') (line 468780)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0023, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_028)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // NSM L ET EN; 4 ('RTL') (line 468781)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L AN L; 4 ('RTL') (line 468782)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L AN EN; 4 ('RTL') (line 468783)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L AN AN; 4 ('RTL') (line 468784)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L AN NSM; 4 ('RTL') (line 468785)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L CS L; 4 ('RTL') (line 468786)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x002C, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L CS EN; 4 ('RTL') (line 468787)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L NSM L; 4 ('RTL') (line 468788)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L NSM EN; 4 ('RTL') (line 468789)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L NSM AN; 4 ('RTL') (line 468790)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_029)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // NSM L NSM NSM; 4 ('RTL') (line 468791)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L WS L; 4 ('RTL') (line 468792)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0020, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L WS EN; 4 ('RTL') (line 468793)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0020, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L ON L; 4 ('RTL') (line 468794)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0021, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L ON EN; 4 ('RTL') (line 468795)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x0021, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L PDI L; 4 ('RTL') (line 468796)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x2069, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM L PDI EN; 4 ('RTL') (line 468797)
        std::vector<uint32_t> const cps = { 0x0300, 0x0041, 0x2069, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN L L; 4 ('RTL') (line 468798)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN L EN; 4 ('RTL') (line 468799)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN L AN; 4 ('RTL') (line 468800)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_030)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // NSM EN L NSM; 4 ('RTL') (line 468801)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN EN L; 4 ('RTL') (line 468802)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN EN EN; 4 ('RTL') (line 468803)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN EN ET; 4 ('RTL') (line 468804)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN EN AN; 4 ('RTL') (line 468805)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN EN NSM; 4 ('RTL') (line 468806)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN ES EN; 4 ('RTL') (line 468807)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x002B, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN ET L; 4 ('RTL') (line 468808)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0023, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN ET EN; 4 ('RTL') (line 468809)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN ET ET; 4 ('RTL') (line 468810)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0023, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_031)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // NSM EN ET AN; 4 ('RTL') (line 468811)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0023, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN ET NSM; 4 ('RTL') (line 468812)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0023, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN AN L; 4 ('RTL') (line 468813)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN AN EN; 4 ('RTL') (line 468814)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN AN AN; 4 ('RTL') (line 468815)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN AN NSM; 4 ('RTL') (line 468816)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN CS EN; 4 ('RTL') (line 468817)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN NSM L; 4 ('RTL') (line 468818)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN NSM EN; 4 ('RTL') (line 468819)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN NSM ET; 4 ('RTL') (line 468820)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0300, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_032)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // NSM EN NSM AN; 4 ('RTL') (line 468821)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM EN NSM NSM; 4 ('RTL') (line 468822)
        std::vector<uint32_t> const cps = { 0x0300, 0x0030, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM ET EN L; 4 ('RTL') (line 468823)
        std::vector<uint32_t> const cps = { 0x0300, 0x0023, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM ET EN EN; 4 ('RTL') (line 468824)
        std::vector<uint32_t> const cps = { 0x0300, 0x0023, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM ET EN ET; 4 ('RTL') (line 468825)
        std::vector<uint32_t> const cps = { 0x0300, 0x0023, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM ET EN AN; 4 ('RTL') (line 468826)
        std::vector<uint32_t> const cps = { 0x0300, 0x0023, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM ET EN NSM; 4 ('RTL') (line 468827)
        std::vector<uint32_t> const cps = { 0x0300, 0x0023, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM ET ET EN; 4 ('RTL') (line 468828)
        std::vector<uint32_t> const cps = { 0x0300, 0x0023, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM ET NSM EN; 4 ('RTL') (line 468829)
        std::vector<uint32_t> const cps = { 0x0300, 0x0023, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN L L; 4 ('RTL') (line 468830)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_033)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // NSM AN L EN; 4 ('RTL') (line 468831)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN L AN; 4 ('RTL') (line 468832)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN L NSM; 4 ('RTL') (line 468833)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN EN L; 4 ('RTL') (line 468834)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN EN EN; 4 ('RTL') (line 468835)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN EN ET; 4 ('RTL') (line 468836)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN EN AN; 4 ('RTL') (line 468837)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN EN NSM; 4 ('RTL') (line 468838)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN ET EN; 4 ('RTL') (line 468839)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN AN L; 4 ('RTL') (line 468840)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_034)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // NSM AN AN EN; 4 ('RTL') (line 468841)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN AN AN; 4 ('RTL') (line 468842)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN AN NSM; 4 ('RTL') (line 468843)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN CS AN; 4 ('RTL') (line 468844)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x002C, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN NSM L; 4 ('RTL') (line 468845)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN NSM EN; 4 ('RTL') (line 468846)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN NSM AN; 4 ('RTL') (line 468847)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // NSM AN NSM NSM; 4 ('RTL') (line 468848)
        std::vector<uint32_t> const cps = { 0x0300, 0x0660, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L L L; 4 ('RTL') (line 468849)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L L EN; 4 ('RTL') (line 468850)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_035)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // S L L AN; 4 ('RTL') (line 468851)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L L NSM; 4 ('RTL') (line 468852)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L EN L; 4 ('RTL') (line 468853)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L EN EN; 4 ('RTL') (line 468854)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L EN ET; 4 ('RTL') (line 468855)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L EN AN; 4 ('RTL') (line 468856)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L EN NSM; 4 ('RTL') (line 468857)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L ES L; 4 ('RTL') (line 468858)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x002B, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L ES EN; 4 ('RTL') (line 468859)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x002B, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L ET L; 4 ('RTL') (line 468860)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0023, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_036)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // S L ET EN; 4 ('RTL') (line 468861)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L AN L; 4 ('RTL') (line 468862)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L AN EN; 4 ('RTL') (line 468863)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L AN AN; 4 ('RTL') (line 468864)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L AN NSM; 4 ('RTL') (line 468865)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L CS L; 4 ('RTL') (line 468866)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x002C, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L CS EN; 4 ('RTL') (line 468867)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L NSM L; 4 ('RTL') (line 468868)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L NSM EN; 4 ('RTL') (line 468869)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L NSM AN; 4 ('RTL') (line 468870)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_037)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // S L NSM NSM; 4 ('RTL') (line 468871)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L WS L; 4 ('RTL') (line 468872)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0020, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L WS EN; 4 ('RTL') (line 468873)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0020, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L ON L; 4 ('RTL') (line 468874)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0021, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L ON EN; 4 ('RTL') (line 468875)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x0021, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L PDI L; 4 ('RTL') (line 468876)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x2069, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S L PDI EN; 4 ('RTL') (line 468877)
        std::vector<uint32_t> const cps = { 0x0009, 0x0041, 0x2069, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN L L; 4 ('RTL') (line 468878)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN L EN; 4 ('RTL') (line 468879)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN L AN; 4 ('RTL') (line 468880)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_038)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // S EN L NSM; 4 ('RTL') (line 468881)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN EN L; 4 ('RTL') (line 468882)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN EN EN; 4 ('RTL') (line 468883)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN EN ET; 4 ('RTL') (line 468884)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN EN AN; 4 ('RTL') (line 468885)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN EN NSM; 4 ('RTL') (line 468886)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN ES EN; 4 ('RTL') (line 468887)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x002B, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN ET L; 4 ('RTL') (line 468888)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0023, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN ET EN; 4 ('RTL') (line 468889)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN ET ET; 4 ('RTL') (line 468890)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0023, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_039)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // S EN ET AN; 4 ('RTL') (line 468891)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0023, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN ET NSM; 4 ('RTL') (line 468892)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0023, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN AN L; 4 ('RTL') (line 468893)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN AN EN; 4 ('RTL') (line 468894)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN AN AN; 4 ('RTL') (line 468895)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN AN NSM; 4 ('RTL') (line 468896)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN CS EN; 4 ('RTL') (line 468897)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN NSM L; 4 ('RTL') (line 468898)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN NSM EN; 4 ('RTL') (line 468899)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN NSM ET; 4 ('RTL') (line 468900)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0300, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_040)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // S EN NSM AN; 4 ('RTL') (line 468901)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S EN NSM NSM; 4 ('RTL') (line 468902)
        std::vector<uint32_t> const cps = { 0x0009, 0x0030, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S ET EN L; 4 ('RTL') (line 468903)
        std::vector<uint32_t> const cps = { 0x0009, 0x0023, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S ET EN EN; 4 ('RTL') (line 468904)
        std::vector<uint32_t> const cps = { 0x0009, 0x0023, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S ET EN ET; 4 ('RTL') (line 468905)
        std::vector<uint32_t> const cps = { 0x0009, 0x0023, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S ET EN AN; 4 ('RTL') (line 468906)
        std::vector<uint32_t> const cps = { 0x0009, 0x0023, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S ET EN NSM; 4 ('RTL') (line 468907)
        std::vector<uint32_t> const cps = { 0x0009, 0x0023, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S ET ET EN; 4 ('RTL') (line 468908)
        std::vector<uint32_t> const cps = { 0x0009, 0x0023, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S ET NSM EN; 4 ('RTL') (line 468909)
        std::vector<uint32_t> const cps = { 0x0009, 0x0023, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN L L; 4 ('RTL') (line 468910)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_041)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // S AN L EN; 4 ('RTL') (line 468911)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN L AN; 4 ('RTL') (line 468912)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN L NSM; 4 ('RTL') (line 468913)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN EN L; 4 ('RTL') (line 468914)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN EN EN; 4 ('RTL') (line 468915)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN EN ET; 4 ('RTL') (line 468916)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN EN AN; 4 ('RTL') (line 468917)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN EN NSM; 4 ('RTL') (line 468918)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN ET EN; 4 ('RTL') (line 468919)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN AN L; 4 ('RTL') (line 468920)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_042)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // S AN AN EN; 4 ('RTL') (line 468921)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN AN AN; 4 ('RTL') (line 468922)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN AN NSM; 4 ('RTL') (line 468923)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN CS AN; 4 ('RTL') (line 468924)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x002C, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN NSM L; 4 ('RTL') (line 468925)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN NSM EN; 4 ('RTL') (line 468926)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN NSM AN; 4 ('RTL') (line 468927)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // S AN NSM NSM; 4 ('RTL') (line 468928)
        std::vector<uint32_t> const cps = { 0x0009, 0x0660, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L L L; 4 ('RTL') (line 468929)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L L EN; 4 ('RTL') (line 468930)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_043)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // WS L L AN; 4 ('RTL') (line 468931)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L L NSM; 4 ('RTL') (line 468932)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L EN L; 4 ('RTL') (line 468933)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L EN EN; 4 ('RTL') (line 468934)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L EN ET; 4 ('RTL') (line 468935)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L EN AN; 4 ('RTL') (line 468936)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L EN NSM; 4 ('RTL') (line 468937)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L ES L; 4 ('RTL') (line 468938)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x002B, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L ES EN; 4 ('RTL') (line 468939)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x002B, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L ET L; 4 ('RTL') (line 468940)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0023, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_044)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // WS L ET EN; 4 ('RTL') (line 468941)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L AN L; 4 ('RTL') (line 468942)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L AN EN; 4 ('RTL') (line 468943)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L AN AN; 4 ('RTL') (line 468944)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L AN NSM; 4 ('RTL') (line 468945)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L CS L; 4 ('RTL') (line 468946)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x002C, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L CS EN; 4 ('RTL') (line 468947)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L NSM L; 4 ('RTL') (line 468948)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L NSM EN; 4 ('RTL') (line 468949)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L NSM AN; 4 ('RTL') (line 468950)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_045)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // WS L NSM NSM; 4 ('RTL') (line 468951)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L WS L; 4 ('RTL') (line 468952)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0020, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L WS EN; 4 ('RTL') (line 468953)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0020, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L ON L; 4 ('RTL') (line 468954)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0021, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L ON EN; 4 ('RTL') (line 468955)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x0021, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L PDI L; 4 ('RTL') (line 468956)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x2069, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS L PDI EN; 4 ('RTL') (line 468957)
        std::vector<uint32_t> const cps = { 0x0020, 0x0041, 0x2069, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN L L; 4 ('RTL') (line 468958)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN L EN; 4 ('RTL') (line 468959)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN L AN; 4 ('RTL') (line 468960)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_046)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // WS EN L NSM; 4 ('RTL') (line 468961)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN EN L; 4 ('RTL') (line 468962)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN EN EN; 4 ('RTL') (line 468963)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN EN ET; 4 ('RTL') (line 468964)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN EN AN; 4 ('RTL') (line 468965)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN EN NSM; 4 ('RTL') (line 468966)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN ES EN; 4 ('RTL') (line 468967)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x002B, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN ET L; 4 ('RTL') (line 468968)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0023, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN ET EN; 4 ('RTL') (line 468969)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN ET ET; 4 ('RTL') (line 468970)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0023, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_047)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // WS EN ET AN; 4 ('RTL') (line 468971)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0023, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN ET NSM; 4 ('RTL') (line 468972)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0023, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN AN L; 4 ('RTL') (line 468973)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN AN EN; 4 ('RTL') (line 468974)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0660, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN AN AN; 4 ('RTL') (line 468975)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0660, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN AN NSM; 4 ('RTL') (line 468976)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0660, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN CS EN; 4 ('RTL') (line 468977)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x002C, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN NSM L; 4 ('RTL') (line 468978)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0300, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN NSM EN; 4 ('RTL') (line 468979)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN NSM ET; 4 ('RTL') (line 468980)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0300, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_048)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // WS EN NSM AN; 4 ('RTL') (line 468981)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0300, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS EN NSM NSM; 4 ('RTL') (line 468982)
        std::vector<uint32_t> const cps = { 0x0020, 0x0030, 0x0300, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS ET EN L; 4 ('RTL') (line 468983)
        std::vector<uint32_t> const cps = { 0x0020, 0x0023, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS ET EN EN; 4 ('RTL') (line 468984)
        std::vector<uint32_t> const cps = { 0x0020, 0x0023, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS ET EN ET; 4 ('RTL') (line 468985)
        std::vector<uint32_t> const cps = { 0x0020, 0x0023, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS ET EN AN; 4 ('RTL') (line 468986)
        std::vector<uint32_t> const cps = { 0x0020, 0x0023, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS ET EN NSM; 4 ('RTL') (line 468987)
        std::vector<uint32_t> const cps = { 0x0020, 0x0023, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS ET ET EN; 4 ('RTL') (line 468988)
        std::vector<uint32_t> const cps = { 0x0020, 0x0023, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS ET NSM EN; 4 ('RTL') (line 468989)
        std::vector<uint32_t> const cps = { 0x0020, 0x0023, 0x0300, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS AN L L; 4 ('RTL') (line 468990)
        std::vector<uint32_t> const cps = { 0x0020, 0x0660, 0x0041, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }
}

TEST(bidi, bidi_937_049)
{

    expected_levels = { 1, 2, 2, 2 };
    expected_reordered_indices = { 1, 2, 3, 0 };

    {
        // WS AN L EN; 4 ('RTL') (line 468991)
        std::vector<uint32_t> const cps = { 0x0020, 0x0660, 0x0041, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS AN L AN; 4 ('RTL') (line 468992)
        std::vector<uint32_t> const cps = { 0x0020, 0x0660, 0x0041, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS AN L NSM; 4 ('RTL') (line 468993)
        std::vector<uint32_t> const cps = { 0x0020, 0x0660, 0x0041, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS AN EN L; 4 ('RTL') (line 468994)
        std::vector<uint32_t> const cps = { 0x0020, 0x0660, 0x0030, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS AN EN EN; 4 ('RTL') (line 468995)
        std::vector<uint32_t> const cps = { 0x0020, 0x0660, 0x0030, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS AN EN ET; 4 ('RTL') (line 468996)
        std::vector<uint32_t> const cps = { 0x0020, 0x0660, 0x0030, 0x0023 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS AN EN AN; 4 ('RTL') (line 468997)
        std::vector<uint32_t> const cps = { 0x0020, 0x0660, 0x0030, 0x0660 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS AN EN NSM; 4 ('RTL') (line 468998)
        std::vector<uint32_t> const cps = { 0x0020, 0x0660, 0x0030, 0x0300 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS AN ET EN; 4 ('RTL') (line 468999)
        std::vector<uint32_t> const cps = { 0x0020, 0x0660, 0x0023, 0x0030 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

    {
        // WS AN AN L; 4 ('RTL') (line 469000)
        std::vector<uint32_t> const cps = { 0x0020, 0x0660, 0x0660, 0x0041 };
        std::vector<int> const levels =
            bidi_levels(cps.begin(), cps.end(), 1);
        int i = 0;
        for (int l : expected_levels) {
            if (0 <= l) {
                EXPECT_EQ(levels[i], l) << "i=" << i;
                ++i;
            }
        }
        EXPECT_EQ((int)levels.size(), i);

        std::vector<int> const reordered =
            bidi_reordered_indices(cps.begin(), cps.end(), 1);
        i = 0;
        for (int idx : expected_reordered_indices) {
            // Skip FSI, LRI, RLI, and PDI.
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }

        std::vector<int> reordered_2;
        for (auto subrange :
            boost::text::bidirectional_subranges(cps, 1)) {
            for (auto cp : subrange) {
                reordered_2.push_back(cp);
            }
        }
        i = 0;
        for (int idx : expected_reordered_indices) {
            if (cps[idx] < 0x2066 || 0x2069 < cps[idx]) {
                EXPECT_EQ(reordered_2[i], (int)cps[idx])
                    << std::hex
                    << " 0x" << reordered_2[i]
                    << " 0x" << cps[idx]
                    << std::dec << " i=" << i;
            }
            ++i;
        }
        EXPECT_EQ(i, (int)reordered_2.size());
    }

}

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