third_party/WebKit/Source/platform/text/Character.h - Issue 1902553004: Do not break after ZWJ if the trailing character is Emoji.

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Issue 1902553004: Do not break after ZWJ if the trailing character is Emoji. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Add comment to isEmoji method Created 4 years, 8 months ago

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1 /*	1 /*

2 * Copyright (C) 2014 Google Inc. All rights reserved.	2 * Copyright (C) 2014 Google Inc. All rights reserved.

3 *	3 *

4 * Redistribution and use in source and binary forms, with or without	4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions are	5 * modification, are permitted provided that the following conditions are

6 * met:	6 * met:

7 *	7 *

8 * * Redistributions of source code must retain the above copyright	8 * * Redistributions of source code must retain the above copyright

9 * notice, this list of conditions and the following disclaimer.	9 * notice, this list of conditions and the following disclaimer.

10 * * Redistributions in binary form must reproduce the above	10 * * Redistributions in binary form must reproduce the above

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105 \|\| c == objectReplacementCharacter;	105 \|\| c == objectReplacementCharacter;

106 }	106 }

107 static bool canReceiveTextEmphasis(UChar32);	107 static bool canReceiveTextEmphasis(UChar32);

108	108

109 static bool isGraphemeExtended(UChar32 c)	109 static bool isGraphemeExtended(UChar32 c)

110 {	110 {

111 // http://unicode.org/reports/tr29/#Extend	111 // http://unicode.org/reports/tr29/#Extend

112 return u_hasBinaryProperty(c, UCHAR_GRAPHEME_EXTEND);	112 return u_hasBinaryProperty(c, UCHAR_GRAPHEME_EXTEND);

113 }	113 }

114	114

	115 // Returns true if the character has a Emoji property.

	116 // See http://www.unicode.org/Public/emoji/3.0/emoji-data.txt

	117 static bool isEmoji(UChar32);

115 // Default presentation style according to:	118 // Default presentation style according to:

116 // http://www.unicode.org/reports/tr51/#Presentation_Style	119 // http://www.unicode.org/reports/tr51/#Presentation_Style

117 static bool isEmojiTextDefault(UChar32);	120 static bool isEmojiTextDefault(UChar32);

118 static bool isEmojiEmojiDefault(UChar32);	121 static bool isEmojiEmojiDefault(UChar32);

119 static bool isEmojiModifierBase(UChar32);	122 static bool isEmojiModifierBase(UChar32);

120 static bool isEmojiKeycapBase(UChar32);	123 static bool isEmojiKeycapBase(UChar32);

121 static bool isRegionalIndicator(UChar32);	124 static bool isRegionalIndicator(UChar32);

122 static bool isModifier(UChar32 c)	125 static bool isModifier(UChar32 c)

123 {	126 {

124 return c >= 0x1F3FB && c <= 0x1F3FF;	127 return c >= 0x1F3FB && c <= 0x1F3FF;

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149	152

150 static String normalizeSpaces(const LChar*, unsigned length);	153 static String normalizeSpaces(const LChar*, unsigned length);

151 static String normalizeSpaces(const UChar*, unsigned length);	154 static String normalizeSpaces(const UChar*, unsigned length);

152	155

153 static bool isCommonOrInheritedScript(UChar32);	156 static bool isCommonOrInheritedScript(UChar32);

154 };	157 };

155	158

156 } // namespace blink	159 } // namespace blink

157	160

158 #endif	161 #endif

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