1d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien/* 2d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien * Copyright (C) 2015 The Android Open Source Project 3d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien * 4d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien * Licensed under the Apache License, Version 2.0 (the "License"); 5d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien * you may not use this file except in compliance with the License. 6d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien * You may obtain a copy of the License at 7d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien * 8d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien * http://www.apache.org/licenses/LICENSE-2.0 9d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien * 10d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien * Unless required by applicable law or agreed to in writing, software 11d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien * distributed under the License is distributed on an "AS IS" BASIS, 12d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien * See the License for the specific language governing permissions and 14d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien * limitations under the License. 15d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien */ 16d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 171d461589869ee5b7102f96271b0ef0a776ab513cSeigo Nonaka#include "minikin/GraphemeBreak.h" 181d461589869ee5b7102f96271b0ef0a776ab513cSeigo Nonaka 191d461589869ee5b7102f96271b0ef0a776ab513cSeigo Nonaka#include <vector> 201d461589869ee5b7102f96271b0ef0a776ab513cSeigo Nonaka 21d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien#include <gtest/gtest.h> 221d461589869ee5b7102f96271b0ef0a776ab513cSeigo Nonaka 231d461589869ee5b7102f96271b0ef0a776ab513cSeigo Nonaka#include "UnicodeUtils.h" 24d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 2514e2d136aaef271ba131f917cf5f27baa31ae5adSeigo Nonakanamespace minikin { 26d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 27d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levienbool IsBreak(const char* src) { 28d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien const size_t BUF_SIZE = 256; 29d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien uint16_t buf[BUF_SIZE]; 30d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien size_t offset; 31d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien size_t size; 32d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien ParseUnicode(buf, BUF_SIZE, src, &size, &offset); 33b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader return GraphemeBreak::isGraphemeBreak(nullptr, buf, 0, size, offset); 34b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader} 35b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader 36b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournaderbool IsBreakWithAdvances(const float* advances, const char* src) { 37b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader const size_t BUF_SIZE = 256; 38b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader uint16_t buf[BUF_SIZE]; 39b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader size_t offset; 40b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader size_t size; 41b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader ParseUnicode(buf, BUF_SIZE, src, &size, &offset); 42b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader return GraphemeBreak::isGraphemeBreak(advances, buf, 0, size, offset); 43d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien} 44d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 45d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph LevienTEST(GraphemeBreak, utf16) { 46d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+D83C | U+DC31")); // emoji, U+1F431 47d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 48d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // tests for invalid UTF-16 49d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("U+D800 | U+D800")); // two leading surrogates 50d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("U+DC00 | U+DC00")); // two trailing surrogates 516c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_TRUE(IsBreak("'a' | U+D800")); // lonely leading surrogate 526c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_TRUE(IsBreak("U+DC00 | 'a'")); // lonely trailing surrogate 536c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_TRUE(IsBreak("U+D800 | 'a'")); // leading surrogate followed by non-surrogate 546c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_TRUE(IsBreak("'a' | U+DC00")); // non-surrogate followed by trailing surrogate 55d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien} 56d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 57d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph LevienTEST(GraphemeBreak, rules) { 58d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // Rule GB1, sot ÷; Rule GB2, ÷ eot 59d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("| 'a'")); 60d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("'a' |")); 61d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 62d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // Rule GB3, CR x LF 63d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+000D | U+000A")); // CR x LF 64d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 65d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // Rule GB4, (Control | CR | LF) ÷ 66d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("'a' | U+2028")); // Line separator 67d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("'a' | U+000D")); // LF 68d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("'a' | U+000A")); // CR 69d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 70d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // Rule GB5, ÷ (Control | CR | LF) 71d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("U+2028 | 'a'")); // Line separator 72d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("U+000D | 'a'")); // LF 73d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("U+000A | 'a'")); // CR 74d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 75d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // Rule GB6, L x ( L | V | LV | LVT ) 76d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+1100 | U+1100")); // L x L 77d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+1100 | U+1161")); // L x V 78d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+1100 | U+AC00")); // L x LV 79d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+1100 | U+AC01")); // L x LVT 80d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 81d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // Rule GB7, ( LV | V ) x ( V | T ) 82d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+AC00 | U+1161")); // LV x V 83d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+1161 | U+1161")); // V x V 84d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+AC00 | U+11A8")); // LV x T 85d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+1161 | U+11A8")); // V x T 86d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 87d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // Rule GB8, ( LVT | T ) x T 88d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+AC01 | U+11A8")); // LVT x T 89d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+11A8 | U+11A8")); // T x T 90d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 91d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // Other hangul pairs not counted above _are_ breaks (GB10) 92d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("U+AC00 | U+1100")); // LV x L 93d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("U+AC01 | U+1100")); // LVT x L 94d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("U+11A8 | U+1100")); // T x L 95d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("U+11A8 | U+AC00")); // T x LV 96d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("U+11A8 | U+AC01")); // T x LVT 97d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 9893e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // Rule GB12 and Rule GB13, Regional_Indicator x Regional_Indicator 99d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+1F1FA | U+1F1F8")); 1006c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_TRUE(IsBreak("U+1F1FA U+1F1F8 | U+1F1FA U+1F1F8")); // Regional indicator pair (flag) 1016c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F1FA | U+1F1F8 U+1F1FA U+1F1F8")); // Regional indicator pair (flag) 1026c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F1FA U+1F1F8 U+1F1FA | U+1F1F8")); // Regional indicator pair (flag) 103450e96c8170c3d59a5896e734c90d3f9def505f8Seigo Nonaka 1046c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_TRUE(IsBreak("U+1F1FA U+1F1F8 | U+1F1FA")); // Regional indicator pair (flag) 105450e96c8170c3d59a5896e734c90d3f9def505f8Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F1FA | U+1F1F8 U+1F1FA")); // Regional indicator pair (flag) 10693e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // Same case as the two above, knowing that the first two characters ligate, which is what 10793e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // would typically happen. 1086c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka const float firstPairLigated[] = {1.0, 0.0, 0.0, 0.0, 1.0, 0.0}; // Two entries per codepoint 10993e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(firstPairLigated, "U+1F1FA U+1F1F8 | U+1F1FA")); 11093e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(firstPairLigated, "U+1F1FA | U+1F1F8 U+1F1FA")); 11193e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // Repeat the tests, But now the font doesn't have a ligature for the first two characters, 11293e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // while it does have a ligature for the last two. This could happen for fonts that do not 11393e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // support some (potentially encoded later than they were developed) flags. 11493e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader const float secondPairLigated[] = {1.0, 0.0, 1.0, 0.0, 0.0, 0.0}; 11593e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(secondPairLigated, "U+1F1FA U+1F1F8 | U+1F1FA")); 11693e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(secondPairLigated, "U+1F1FA | U+1F1F8 U+1F1FA")); 117450e96c8170c3d59a5896e734c90d3f9def505f8Seigo Nonaka 1186c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_TRUE(IsBreak("'a' U+1F1FA U+1F1F8 | U+1F1FA")); // Regional indicator pair (flag) 119450e96c8170c3d59a5896e734c90d3f9def505f8Seigo Nonaka EXPECT_FALSE(IsBreak("'a' U+1F1FA | U+1F1F8 U+1F1FA")); // Regional indicator pair (flag) 120450e96c8170c3d59a5896e734c90d3f9def505f8Seigo Nonaka 121450e96c8170c3d59a5896e734c90d3f9def505f8Seigo Nonaka EXPECT_TRUE( 122450e96c8170c3d59a5896e734c90d3f9def505f8Seigo Nonaka IsBreak("'a' U+1F1FA U+1F1F8 | U+1F1FA U+1F1F8")); // Regional indicator pair (flag) 123450e96c8170c3d59a5896e734c90d3f9def505f8Seigo Nonaka EXPECT_FALSE( 124450e96c8170c3d59a5896e734c90d3f9def505f8Seigo Nonaka IsBreak("'a' U+1F1FA | U+1F1F8 U+1F1FA U+1F1F8")); // Regional indicator pair (flag) 125450e96c8170c3d59a5896e734c90d3f9def505f8Seigo Nonaka EXPECT_FALSE( 126450e96c8170c3d59a5896e734c90d3f9def505f8Seigo Nonaka IsBreak("'a' U+1F1FA U+1F1F8 U+1F1FA | U+1F1F8")); // Regional indicator pair (flag) 127d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 12893e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // Rule GB9, x (Extend | ZWJ) 129d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("'a' | U+0301")); // combining accent 13093e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreak("'a' | U+200D")); // ZWJ 131d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // Rule GB9a, x SpacingMark 132d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+0915 | U+093E")); // KA, AA (spacing mark) 133d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // Rule GB9b, Prepend x 134d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // see tailoring test for prepend, as current ICU doesn't have any characters in the class 135d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 13693e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // Rule GB999, Any ÷ Any 137d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("'a' | 'b'")); 1386c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_TRUE(IsBreak("'f' | 'i'")); // probable ligature 1396c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_TRUE(IsBreak("U+0644 | U+0627")); // probable ligature, lam + alef 1406c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_TRUE(IsBreak("U+4E00 | U+4E00")); // CJK ideographs 141d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("'a' | U+1F1FA U+1F1F8")); // Regional indicator pair (flag) 142d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("U+1F1FA U+1F1F8 | 'a'")); // Regional indicator pair (flag) 143e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka 144e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka // Extended rule for emoji tag sequence. 145e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka EXPECT_TRUE(IsBreak("'a' | U+1F3F4 'a'")); 146e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka EXPECT_TRUE(IsBreak("'a' U+1F3F4 | 'a'")); 147e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka 148e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka // Immediate tag_term after tag_base. 149e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka EXPECT_TRUE(IsBreak("'a' | U+1F3F4 U+E007F 'a'")); 150e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F3F4 | U+E007F")); 151e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka EXPECT_TRUE(IsBreak("'a' U+1F3F4 U+E007F | 'a'")); 152e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka 153e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka // Flag sequence 154e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka // U+1F3F4 U+E0067 U+E0062 U+E0073 U+E0063 U+E0074 U+E007F is emoji tag sequence for the flag 155e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka // of Scotland. 156e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka // U+1F3F4 is WAVING BLACK FLAG. This can be a tag_base character. 157e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka // U+E0067 is TAG LATIN SMALL LETTER G. This can be a part of tag_spec. 158e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka // U+E0062 is TAG LATIN SMALL LETTER B. This can be a part of tag_spec. 159e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka // U+E0073 is TAG LATIN SMALL LETTER S. This can be a part of tag_spec. 160e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka // U+E0063 is TAG LATIN SMALL LETTER C. This can be a part of tag_spec. 161e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka // U+E0074 is TAG LATIN SMALL LETTER T. This can be a part of tag_spec. 162e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka // U+E007F is CANCEL TAG. This is a tag_term character. 163e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka EXPECT_TRUE(IsBreak("'a' | U+1F3F4 U+E0067 U+E0062 U+E0073 U+E0063 U+E0074 U+E007F")); 164e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F3F4 | U+E0067 U+E0062 U+E0073 U+E0063 U+E0074 U+E007F")); 165e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F3F4 U+E0067 | U+E0062 U+E0073 U+E0063 U+E0074 U+E007F")); 166e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F3F4 U+E0067 U+E0062 | U+E0073 U+E0063 U+E0074 U+E007F")); 167e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F3F4 U+E0067 U+E0062 U+E0073 | U+E0063 U+E0074 U+E007F")); 168e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F3F4 U+E0067 U+E0062 U+E0073 U+E0063 | U+E0074 U+E007F")); 169e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F3F4 U+E0067 U+E0062 U+E0073 U+E0063 U+E0074 | U+E007F")); 170e05034f356a4a1e6ad0e7b57a1992e87304f24a7Seigo Nonaka EXPECT_TRUE(IsBreak("U+1F3F4 U+E0067 U+E0062 U+E0073 U+E0063 U+E0074 U+E007F | 'a'")); 171d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien} 172d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 173d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph LevienTEST(GraphemeBreak, tailoring) { 174d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // control characters that we interpret as "extend" 1756c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_FALSE(IsBreak("'a' | U+00AD")); // soft hyphen 1766c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_FALSE(IsBreak("'a' | U+200B")); // zwsp 1776c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_FALSE(IsBreak("'a' | U+200E")); // lrm 1786c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_FALSE(IsBreak("'a' | U+202A")); // lre 179d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("'a' | U+E0041")); // tag character 180d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 181d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // UTC-approved characters for the Prepend class 182d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+06DD | U+0661")); // arabic subtending mark + digit one 183d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 184d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_TRUE(IsBreak("U+0E01 | U+0E33")); // Thai sara am 185d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 186d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien // virama is not a grapheme break, but "pure killer" is 187d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+0915 | U+094D U+0915")); // Devanagari ka+virama+ka 188d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+0915 U+094D | U+0915")); // Devanagari ka+virama+ka 189d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien EXPECT_FALSE(IsBreak("U+0E01 | U+0E3A U+0E01")); // thai phinthu = pure killer 1906c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_TRUE(IsBreak("U+0E01 U+0E3A | U+0E01")); // thai phinthu = pure killer 1916638e05ac2de397455c30cae05aca399a567428dRaph Levien 192b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader // Repetition of above tests, but with a given advances array that implies everything 193b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader // became just one cluster. 194b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader const float conjoined[] = {1.0, 0.0, 0.0}; 195b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(conjoined, 1966c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka "U+0915 | U+094D U+0915")); // Devanagari ka+virama+ka 197b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(conjoined, 1986c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka "U+0915 U+094D | U+0915")); // Devanagari ka+virama+ka 199b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(conjoined, 2006c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka "U+0E01 | U+0E3A U+0E01")); // thai phinthu = pure killer 201b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(conjoined, 2026c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka "U+0E01 U+0E3A | U+0E01")); // thai phinthu = pure killer 203b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader 204b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader // Repetition of above tests, but with a given advances array that the virama did not 205b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader // form a cluster with the following consonant. The difference is that there is now 206b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader // a grapheme break after the virama in ka+virama+ka. 207b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader const float separate[] = {1.0, 0.0, 1.0}; 208b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(separate, 2096c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka "U+0915 | U+094D U+0915")); // Devanagari ka+virama+ka 210b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(separate, 2116c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka "U+0915 U+094D | U+0915")); // Devanagari ka+virama+ka 212b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(separate, 2136c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka "U+0E01 | U+0E3A U+0E01")); // thai phinthu = pure killer 214b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(separate, 2156c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka "U+0E01 U+0E3A | U+0E01")); // thai phinthu = pure killer 216b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader 21793e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // suppress grapheme breaks in zwj emoji sequences 2186638e05ac2de397455c30cae05aca399a567428dRaph Levien EXPECT_FALSE(IsBreak("U+1F469 U+200D | U+2764 U+FE0F U+200D U+1F48B U+200D U+1F468")); 2196638e05ac2de397455c30cae05aca399a567428dRaph Levien EXPECT_FALSE(IsBreak("U+1F469 U+200D U+2764 U+FE0F U+200D | U+1F48B U+200D U+1F468")); 2206638e05ac2de397455c30cae05aca399a567428dRaph Levien EXPECT_FALSE(IsBreak("U+1F469 U+200D U+2764 U+FE0F U+200D U+1F48B U+200D | U+1F468")); 2216638e05ac2de397455c30cae05aca399a567428dRaph Levien EXPECT_FALSE(IsBreak("U+1F468 U+200D | U+1F469 U+200D U+1F466")); 2226638e05ac2de397455c30cae05aca399a567428dRaph Levien EXPECT_FALSE(IsBreak("U+1F468 U+200D U+1F469 U+200D | U+1F466")); 2236638e05ac2de397455c30cae05aca399a567428dRaph Levien EXPECT_FALSE(IsBreak("U+1F469 U+200D | U+1F469 U+200D U+1F467 U+200D U+1F466")); 2246638e05ac2de397455c30cae05aca399a567428dRaph Levien EXPECT_FALSE(IsBreak("U+1F469 U+200D U+1F469 U+200D | U+1F467 U+200D U+1F466")); 2256638e05ac2de397455c30cae05aca399a567428dRaph Levien EXPECT_FALSE(IsBreak("U+1F469 U+200D U+1F469 U+200D U+1F467 U+200D | U+1F466")); 2266638e05ac2de397455c30cae05aca399a567428dRaph Levien EXPECT_FALSE(IsBreak("U+1F441 U+200D | U+1F5E8")); 2276638e05ac2de397455c30cae05aca399a567428dRaph Levien 22877f488345316fba46c271fc04bea470819ae1712Seigo Nonaka // Do not break before and after zwj with all kind of emoji characters. 22977f488345316fba46c271fc04bea470819ae1712Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F431 | U+200D U+1F464")); 23077f488345316fba46c271fc04bea470819ae1712Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F431 U+200D | U+1F464")); 23177f488345316fba46c271fc04bea470819ae1712Seigo Nonaka 2326638e05ac2de397455c30cae05aca399a567428dRaph Levien // ARABIC LETTER BEH + ZWJ + heart, not a zwj emoji sequence, so we preserve the break 2336638e05ac2de397455c30cae05aca399a567428dRaph Levien EXPECT_TRUE(IsBreak("U+0628 U+200D | U+2764")); 234d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien} 235d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien 236adfa580f1f067c846509b4346e5be2cb19177c1bRaph LevienTEST(GraphemeBreak, emojiModifiers) { 2376c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_FALSE(IsBreak("U+261D | U+1F3FB")); // white up pointing index + modifier 2386c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_FALSE(IsBreak("U+270C | U+1F3FB")); // victory hand + modifier 239adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien EXPECT_FALSE(IsBreak("U+1F466 | U+1F3FB")); // boy + modifier 240adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien EXPECT_FALSE(IsBreak("U+1F466 | U+1F3FC")); // boy + modifier 241adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien EXPECT_FALSE(IsBreak("U+1F466 | U+1F3FD")); // boy + modifier 242adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien EXPECT_FALSE(IsBreak("U+1F466 | U+1F3FE")); // boy + modifier 243adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien EXPECT_FALSE(IsBreak("U+1F466 | U+1F3FF")); // boy + modifier 244adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien EXPECT_FALSE(IsBreak("U+1F918 | U+1F3FF")); // sign of the horns + modifier 245adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien EXPECT_FALSE(IsBreak("U+1F933 | U+1F3FF")); // selfie (Unicode 9) + modifier 24693e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // Reptition of the tests above, with the knowledge that they are ligated. 24793e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader const float ligated1_2[] = {1.0, 0.0, 0.0}; 24893e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader const float ligated2_2[] = {1.0, 0.0, 0.0, 0.0}; 24993e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(ligated1_2, "U+261D | U+1F3FB")); 25093e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(ligated1_2, "U+270C | U+1F3FB")); 25193e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(ligated2_2, "U+1F466 | U+1F3FB")); 25293e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(ligated2_2, "U+1F466 | U+1F3FC")); 25393e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(ligated2_2, "U+1F466 | U+1F3FD")); 25493e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(ligated2_2, "U+1F466 | U+1F3FE")); 25593e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(ligated2_2, "U+1F466 | U+1F3FF")); 25693e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(ligated2_2, "U+1F918 | U+1F3FF")); 25793e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(ligated2_2, "U+1F933 | U+1F3FF")); 25893e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // Reptition of the tests above, with the knowledge that they are not ligated. 25993e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader const float unligated1_2[] = {1.0, 1.0, 0.0}; 26093e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader const float unligated2_2[] = {1.0, 0.0, 1.0, 0.0}; 26193e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(unligated1_2, "U+261D | U+1F3FB")); 26293e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(unligated1_2, "U+270C | U+1F3FB")); 26393e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(unligated2_2, "U+1F466 | U+1F3FB")); 26493e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(unligated2_2, "U+1F466 | U+1F3FC")); 26593e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(unligated2_2, "U+1F466 | U+1F3FD")); 26693e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(unligated2_2, "U+1F466 | U+1F3FE")); 26793e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(unligated2_2, "U+1F466 | U+1F3FF")); 26893e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(unligated2_2, "U+1F918 | U+1F3FF")); 26993e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(unligated2_2, "U+1F933 | U+1F3FF")); 27093e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader 27193e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // adding extend characters between emoji base and modifier doesn't affect grapheme cluster 27293e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreak("U+270C U+FE0E | U+1F3FB")); // victory hand + text style + modifier 273adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien EXPECT_FALSE(IsBreak("U+270C U+FE0F | U+1F3FB")); // heart + emoji style + modifier 27493e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // Reptition of the two tests above, with the knowledge that they are ligated. 27593e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader const float ligated1_1_2[] = {1.0, 0.0, 0.0, 0.0}; 27693e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(ligated1_1_2, "U+270C U+FE0E | U+1F3FB")); 27793e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(ligated1_1_2, "U+270C U+FE0F | U+1F3FB")); 27893e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // Reptition of the first two tests, with the knowledge that they are not ligated. 27993e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader const float unligated1_1_2[] = {1.0, 0.0, 1.0, 0.0}; 28093e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(unligated1_1_2, "U+270C U+FE0E | U+1F3FB")); 28193e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(unligated1_1_2, "U+270C U+FE0F | U+1F3FB")); 282adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien 283adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien // heart is not an emoji base 2846c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_TRUE(IsBreak("U+2764 | U+1F3FB")); // heart + modifier 285adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien EXPECT_TRUE(IsBreak("U+2764 U+FE0E | U+1F3FB")); // heart + emoji style + modifier 286adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien EXPECT_TRUE(IsBreak("U+2764 U+FE0F | U+1F3FB")); // heart + emoji style + modifier 2876c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka EXPECT_TRUE(IsBreak("U+1F3FB | U+1F3FB")); // modifier + modifier 288adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien 289adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien // rat is not an emoji modifer 290adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien EXPECT_TRUE(IsBreak("U+1F466 | U+1F400")); // boy + rat 2911946f48e84fd67943dd2d09b3fee94028fbfe762Seigo Nonaka} 2921946f48e84fd67943dd2d09b3fee94028fbfe762Seigo Nonaka 2931946f48e84fd67943dd2d09b3fee94028fbfe762Seigo NonakaTEST(GraphemeBreak, genderBalancedEmoji) { 2941946f48e84fd67943dd2d09b3fee94028fbfe762Seigo Nonaka // U+1F469 is WOMAN, U+200D is ZWJ, U+1F4BC is BRIEFCASE. 2951946f48e84fd67943dd2d09b3fee94028fbfe762Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F469 | U+200D U+1F4BC")); 2961946f48e84fd67943dd2d09b3fee94028fbfe762Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F469 U+200D | U+1F4BC")); 29793e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // The above two cases, when the ligature is not supported in the font. We now expect a break 29893e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // between them. 29993e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader const float unligated2_1_2[] = {1.0, 0.0, 0.0, 1.0, 0.0}; 30093e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(unligated2_1_2, "U+1F469 | U+200D U+1F4BC")); 30193e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(unligated2_1_2, "U+1F469 U+200D | U+1F4BC")); 3021946f48e84fd67943dd2d09b3fee94028fbfe762Seigo Nonaka 3031946f48e84fd67943dd2d09b3fee94028fbfe762Seigo Nonaka // U+2695 has now emoji property, so should be part of ZWJ sequence. 3041946f48e84fd67943dd2d09b3fee94028fbfe762Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F469 | U+200D U+2695")); 3051946f48e84fd67943dd2d09b3fee94028fbfe762Seigo Nonaka EXPECT_FALSE(IsBreak("U+1F469 U+200D | U+2695")); 30693e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // The above two cases, when the ligature is not supported in the font. We now expect a break 30793e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader // between them. 30893e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader const float unligated2_1_1[] = {1.0, 0.0, 0.0, 1.0}; 30993e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_FALSE(IsBreakWithAdvances(unligated2_1_1, "U+1F469 | U+200D U+2695")); 31093e9c9f71e7cb418287a0acc8d188e385ba11e43Roozbeh Pournader EXPECT_TRUE(IsBreakWithAdvances(unligated2_1_1, "U+1F469 U+200D | U+2695")); 311adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien} 312adfa580f1f067c846509b4346e5be2cb19177c1bRaph Levien 313d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph LevienTEST(GraphemeBreak, offsets) { 3146c8722e217ff5238f0b849152d7936959a728103Seigo Nonaka uint16_t string[] = {0x0041, 0x06DD, 0x0045, 0x0301, 0x0049, 0x0301}; 315b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader EXPECT_TRUE(GraphemeBreak::isGraphemeBreak(nullptr, string, 2, 3, 2)); 316b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader EXPECT_FALSE(GraphemeBreak::isGraphemeBreak(nullptr, string, 2, 3, 3)); 317b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader EXPECT_TRUE(GraphemeBreak::isGraphemeBreak(nullptr, string, 2, 3, 4)); 318b01028d1d7bc3906ef71c72ad985919f79304b5eRoozbeh Pournader EXPECT_TRUE(GraphemeBreak::isGraphemeBreak(nullptr, string, 2, 3, 5)); 319d8dd94b81ea7efd776859fbbdf4a76458e270eabRaph Levien} 32014e2d136aaef271ba131f917cf5f27baa31ae5adSeigo Nonaka 32114e2d136aaef271ba131f917cf5f27baa31ae5adSeigo Nonaka} // namespace minikin 322