2 # Copyright (C) 2016 and later: Unicode, Inc. and others.
3 # License & terms of use: http://www.unicode.org/copyright.html
4 # Copyright (C) 2002-2016, International Business Machines Corporation
5 # and others. All Rights Reserved.
9 # ICU Word Break Rules, fi/sv locales (these are actually the standard UAX #29 rules)
10 # See Unicode Standard Annex #29.
11 # These rules are based on UAX #29 Revision 29 for Unicode Version 9.0
12 # with additions for Emoji Sequences from https://goo.gl/cluFCn
14 # Note: Updates to word.txt will usually need to be merged into
15 # word_POSIX.txt also.
17 ##############################################################################
19 # Character class definitions from TR 29
21 ##############################################################################
27 # Character Class Definitions.
30 $CR = [\p{Word_Break = CR}];
31 $LF = [\p{Word_Break = LF}];
32 $Newline = [\p{Word_Break = Newline} ];
33 $Extend = [\p{Word_Break = Extend}];
34 $ZWJ = [\p{Word_Break = ZWJ}];
35 $Regional_Indicator = [\p{Word_Break = Regional_Indicator}];
36 $Format = [\p{Word_Break = Format}];
37 $Katakana = [\p{Word_Break = Katakana}];
38 $Hebrew_Letter = [\p{Word_Break = Hebrew_Letter}];
39 $ALetter = [\p{Word_Break = ALetter}];
40 $Single_Quote = [\p{Word_Break = Single_Quote}];
41 $Double_Quote = [\p{Word_Break = Double_Quote}];
42 $MidNumLet = [\p{Word_Break = MidNumLet}];
43 $MidLetter = [\p{Word_Break = MidLetter}];
44 $MidNum = [\p{Word_Break = MidNum}];
45 $Numeric = [\p{Word_Break = Numeric}];
46 $ExtendNumLet = [\p{Word_Break = ExtendNumLet}];
47 $E_Base = [[\p{Word_Break = EB}] \U0001F46A-\U0001F46D\U0001F46F\U0001F91D\U0001F93C];
48 $E_Modifier = [\p{Word_Break = EM}];
50 # Data for Extended Pictographic scraped from CLDR common/properties/ExtendedPictographic.txt, r13267
51 $Extended_Pict = [\U0001F774-\U0001F77F\U00002700-\U00002701\U00002703-\U00002704\U0000270E\U00002710-\U00002711\U00002765-\U00002767\U0001F030-\U0001F093\U0001F094-\U0001F09F\U0001F10D-\U0001F10F\U0001F12F\U0001F16C-\U0001F16F\U0001F1AD-\U0001F1E5\U0001F260-\U0001F265\U0001F203-\U0001F20F\U0001F23C-\U0001F23F\U0001F249-\U0001F24F\U0001F252-\U0001F25F\U0001F266-\U0001F2FF\U0001F7D5-\U0001F7FF\U0001F000-\U0001F003\U0001F005-\U0001F02B\U0001F02C-\U0001F02F\U0001F322-\U0001F323\U0001F394-\U0001F395\U0001F398\U0001F39C-\U0001F39D\U0001F3F1-\U0001F3F2\U0001F3F6\U0001F4FE\U0001F53E-\U0001F548\U0001F54F\U0001F568-\U0001F56E\U0001F571-\U0001F572\U0001F57B-\U0001F586\U0001F588-\U0001F589\U0001F58E-\U0001F58F\U0001F591-\U0001F594\U0001F597-\U0001F5A3\U0001F5A6-\U0001F5A7\U0001F5A9-\U0001F5B0\U0001F5B3-\U0001F5BB\U0001F5BD-\U0001F5C1\U0001F5C5-\U0001F5D0\U0001F5D4-\U0001F5DB\U0001F5DF-\U0001F5E0\U0001F5E2\U0001F5E4-\U0001F5E7\U0001F5E9-\U0001F5EE\U0001F5F0-\U0001F5F2\U0001F5F4-\U0001F5F9\U00002605\U00002607-\U0000260D\U0000260F-\U00002610\U00002612\U00002616-\U00002617\U00002619-\U0000261C\U0000261E-\U0000261F\U00002621\U00002624-\U00002625\U00002627-\U00002629\U0000262B-\U0000262D\U00002630-\U00002637\U0000263B-\U00002647\U00002654-\U0000265F\U00002661-\U00002662\U00002664\U00002667\U00002669-\U0000267A\U0000267C-\U0000267E\U00002680-\U00002691\U00002695\U00002698\U0000269A\U0000269D-\U0000269F\U000026A2-\U000026A9\U000026AC-\U000026AF\U000026B2-\U000026BC\U000026BF-\U000026C3\U000026C6-\U000026C7\U000026C9-\U000026CD\U000026D0\U000026D2\U000026D5-\U000026E8\U000026EB-\U000026EF\U000026F6\U000026FB-\U000026FC\U000026FE-\U000026FF\U00002388\U0001FA00-\U0001FFFD\U0001F0A0-\U0001F0AE\U0001F0B1-\U0001F0BF\U0001F0C1-\U0001F0CF\U0001F0D1-\U0001F0F5\U0001F0AF-\U0001F0B0\U0001F0C0\U0001F0D0\U0001F0F6-\U0001F0FF\U0001F80C-\U0001F80F\U0001F848-\U0001F84F\U0001F85A-\U0001F85F\U0001F888-\U0001F88F\U0001F8AE-\U0001F8FF\U0001F900-\U0001F90B\U0001F91F\U0001F928-\U0001F92F\U0001F931-\U0001F932\U0001F94C\U0001F95F-\U0001F96B\U0001F992-\U0001F997\U0001F9D0-\U0001F9E6\U0001F90C-\U0001F90F\U0001F93F\U0001F94D-\U0001F94F\U0001F96C-\U0001F97F\U0001F998-\U0001F9BF\U0001F9C1-\U0001F9CF\U0001F9E7-\U0001F9FF\U0001F6C6-\U0001F6CA\U0001F6D3-\U0001F6D4\U0001F6E6-\U0001F6E8\U0001F6EA\U0001F6F1-\U0001F6F2\U0001F6F7-\U0001F6F8\U0001F6D5-\U0001F6DF\U0001F6ED-\U0001F6EF\U0001F6F9-\U0001F6FF];
52 $EBG = [\p{Word_Break = EBG}];
53 $EmojiNRK = [[\p{Emoji}] - [\p{Word_Break = Regional_Indicator}\u002a\u00230-9©®™〰〽]];
56 $Hiragana = [:Hiragana:];
59 # Dictionary character set, for triggering language-based break engines. Currently
60 # limited to LineBreak=Complex_Context. Note that this set only works in Unicode
61 # 5.0 or later as the definition of Complex_Context was corrected to include all
62 # characters requiring dictionary break.
64 $Control = [\p{Grapheme_Cluster_Break = Control}];
65 $HangulSyllable = [\uac00-\ud7a3];
66 $ComplexContext = [:LineBreak = Complex_Context:];
67 $KanaKanji = [$Han $Hiragana $Katakana];
68 $dictionaryCJK = [$KanaKanji $HangulSyllable];
69 $dictionary = [$ComplexContext $dictionaryCJK];
71 # leave CJK scripts out of ALetterPlus
72 $ALetterPlus = [$ALetter-$dictionaryCJK [$ComplexContext-$Extend-$Control]];
76 # Rules 4 Ignore Format and Extend characters,
77 # except when they appear at the beginning of a region of text.
79 # TODO: check if handling of katakana in dictionary makes rules incorrect/void
80 $KatakanaEx = $Katakana ($Extend | $Format | $ZWJ)*;
81 $Hebrew_LetterEx = $Hebrew_Letter ($Extend | $Format | $ZWJ)*;
82 $ALetterEx = $ALetterPlus ($Extend | $Format | $ZWJ)*;
83 $Single_QuoteEx = $Single_Quote ($Extend | $Format | $ZWJ)*;
84 $Double_QuoteEx = $Double_Quote ($Extend | $Format | $ZWJ)*;
85 $MidNumLetEx = $MidNumLet ($Extend | $Format | $ZWJ)*;
86 $MidLetterEx = $MidLetter ($Extend | $Format | $ZWJ)*;
87 $MidNumEx = $MidNum ($Extend | $Format | $ZWJ)*;
88 $NumericEx = $Numeric ($Extend | $Format | $ZWJ)*;
89 $ExtendNumLetEx = $ExtendNumLet ($Extend | $Format | $ZWJ)*;
90 $Regional_IndicatorEx = $Regional_Indicator ($Extend | $Format | $ZWJ)*;
92 $Ideographic = [\p{Ideographic}];
93 $HiraganaEx = $Hiragana ($Extend | $Format | $ZWJ)*;
94 $IdeographicEx = $Ideographic ($Extend | $Format | $ZWJ)*;
96 ## -------------------------------------------------
105 # Rule 3c ZWJ x (Extended_Pict | EmojiNRK). Precedes WB4, so no intervening Extend chars allowed.
107 $ZWJ ($Extended_Pict | $EmojiNRK);
110 # Rule 4 - ignore Format and Extend characters, except when they appear at the beginning
111 # of a region of Text. The rule here comes into play when the start of text
112 # begins with a group of Format chars, or with a "word" consisting of a single
113 # char that is not in any of the listed word break categories followed by
114 # format char(s), or is not a CJK dictionary character.
115 [^$CR $LF $Newline]? ($Extend | $Format | $ZWJ)+;
119 $HangulSyllable {200};
120 $Hebrew_LetterEx{200};
121 $KatakanaEx {400}; # note: these status values override those from rule 5
122 $HiraganaEx {400}; # by virtue of being numerically larger.
123 $IdeographicEx {400}; #
125 $E_Base ($Extend | $Format | $ZWJ)*;
126 $E_Modifier ($Extend | $Format | $ZWJ)*;
127 $Extended_Pict ($Extend | $Format | $ZWJ)*;
131 # Do not break between most letters.
133 ($ALetterEx | $Hebrew_LetterEx) ($ALetterEx | $Hebrew_LetterEx) {200};
136 ($ALetterEx | $Hebrew_LetterEx) ($MidLetterEx | $MidNumLetEx | $Single_QuoteEx) ($ALetterEx | $Hebrew_LetterEx) {200};
139 $Hebrew_LetterEx $Single_QuoteEx {200};
142 $Hebrew_LetterEx $Double_QuoteEx $Hebrew_LetterEx {200};
146 $NumericEx $NumericEx {100};
150 ($ALetterEx | $Hebrew_LetterEx) $NumericEx {200};
154 $NumericEx ($ALetterEx | $Hebrew_LetterEx) {200};
158 $NumericEx ($MidNumEx | $MidNumLetEx | $Single_QuoteEx) $NumericEx {100};
161 # to be consistent with $KanaKanji $KanaKanhi, changed
163 # See also TestRuleStatus in intltest/rbbiapts.cpp
164 $KatakanaEx $KatakanaEx {400};
168 $ALetterEx $ExtendNumLetEx {200}; # (13a)
169 $Hebrew_LetterEx $ExtendNumLetEx {200}; # (13a)
170 $NumericEx $ExtendNumLetEx {100}; # (13a)
171 $KatakanaEx $ExtendNumLetEx {400}; # (13a)
172 $ExtendNumLetEx $ExtendNumLetEx {200}; # (13a)
174 $ExtendNumLetEx $ALetterEx {200}; # (13b)
175 $ExtendNumLetEx $Hebrew_Letter {200}; # (13b)
176 $ExtendNumLetEx $NumericEx {100}; # (13b)
177 $ExtendNumLetEx $KatakanaEx {400}; # (13b)
180 # Do not break within emoji modifier sequences
182 ($E_Base | $EBG) ($Format | $Extend | $ZWJ)* $E_Modifier;
185 # Pairs of Regional Indicators stay together.
186 # With rule chaining disabled by ^, this rule will match exactly two of them.
187 # No other rule begins with a Regional_Indicator, so chaining cannot extend the match.
189 ^$Regional_IndicatorEx $Regional_IndicatorEx;
191 # special handling for CJK characters: chain for later dictionary segmentation
192 $HangulSyllable $HangulSyllable {200};
193 $KanaKanji $KanaKanji {400}; # different rule status if both kana and kanji found
196 ## -------------------------------------------------
200 $BackHebrew_LetterEx = ($Format | $Extend | $ZWJ)* $Hebrew_Letter;
201 $BackALetterEx = ($Format | $Extend | $ZWJ)* $ALetterPlus;
202 $BackSingle_QuoteEx = ($Format | $Extend | $ZWJ)* $Single_Quote;
203 $BackDouble_QuoteEx = ($Format | $Extend | $ZWJ)* $Double_Quote;
204 $BackMidNumLetEx = ($Format | $Extend | $ZWJ)* $MidNumLet;
205 $BackNumericEx = ($Format | $Extend | $ZWJ)* $Numeric;
206 $BackMidNumEx = ($Format | $Extend | $ZWJ)* $MidNum;
207 $BackMidLetterEx = ($Format | $Extend | $ZWJ)* $MidLetter;
208 $BackKatakanaEx = ($Format | $Extend | $ZWJ)* $Katakana;
209 $BackHiraganaEx = ($Format | $Extend | $ZWJ)* $Hiragana;
210 $BackExtendNumLetEx = ($Format | $Extend | $ZWJ)* $ExtendNumLet;
211 $BackRegional_IndicatorEx = ($Format | $Extend | $ZWJ)* $Regional_Indicator;
216 # Rule 3c ZWJ x (Extended_Pict | EmojiNRK). Precedes WB4, so no intervening Extend chars allowed.
218 ($Extended_Pict | $EmojiNRK) $ZWJ;
221 ($Format | $Extend | $ZWJ)* [^$CR $LF $Newline]?;
225 ($BackALetterEx | $BackHebrew_LetterEx) ($BackALetterEx | $BackHebrew_LetterEx);
229 ($BackALetterEx | $BackHebrew_LetterEx) ($BackMidLetterEx | $BackMidNumLetEx | $BackSingle_QuoteEx) ($BackALetterEx | $BackHebrew_LetterEx);
232 $BackSingle_QuoteEx $BackHebrew_LetterEx;
235 $BackHebrew_LetterEx $BackDouble_QuoteEx $BackHebrew_LetterEx;
239 $BackNumericEx $BackNumericEx;
243 $BackNumericEx ($BackALetterEx | $BackHebrew_LetterEx);
247 ($BackALetterEx | $BackHebrew_LetterEx) $BackNumericEx;
251 $BackNumericEx ($BackMidNumEx | $BackMidNumLetEx | $BackSingle_QuoteEx) $BackNumericEx;
255 $BackKatakanaEx $BackKatakanaEx;
259 $BackExtendNumLetEx ($BackALetterEx | $BackHebrew_LetterEx | $BackNumericEx | $BackKatakanaEx | $BackExtendNumLetEx);
260 ($BackALetterEx | $BackHebrew_LetterEx | $BackNumericEx | $BackKatakanaEx) $BackExtendNumLetEx;
262 # special handling for CJK characters: chain for later dictionary segmentation
263 $HangulSyllable $HangulSyllable;
264 $KanaKanji $KanaKanji; #different rule status if both kanji and kana found
268 $E_Modifier ($Format | $Extend | $ZWJ)* ($E_Base | $EBG);
271 # Pairs of Regional Indicators stay together.
273 ^$BackRegional_IndicatorEx / ($BackRegional_IndicatorEx $BackRegional_IndicatorEx)*
274 ($Format | $Extend | $ZWJ)* [[^$Regional_Indicator $Format $Extend $ZWJ] {eof}];
275 ^$BackRegional_IndicatorEx $BackRegional_IndicatorEx / ($BackRegional_IndicatorEx $BackRegional_IndicatorEx)*
276 ($Format | $Extend | $ZWJ)* [[^$Regional_Indicator $Format $Extend $ZWJ] {eof}];
278 ($Extended_Pict | $EmojiNRK) $ZWJ $BackRegional_IndicatorEx / ($BackRegional_IndicatorEx $BackRegional_IndicatorEx)*
279 ($Format | $Extend | $ZWJ)* [[^$Regional_Indicator $Format $Extend $ZWJ] {eof}];
280 ($Extended_Pict | $EmojiNRK) $ZWJ $BackRegional_IndicatorEx $BackRegional_IndicatorEx / ($BackRegional_IndicatorEx $BackRegional_IndicatorEx)*
281 ($Format | $Extend | $ZWJ)* [[^$Regional_Indicator $Format $Extend $ZWJ] {eof}];
285 ## -------------------------------------------------
290 ($Extend | $Format | $ZWJ)+ .?;
293 ($MidLetter | $MidNumLet | $Single_Quote) ($BackALetterEx | $BackHebrew_LetterEx);
296 $Double_Quote $BackHebrew_LetterEx;
300 ($MidNum | $MidNumLet | $Single_Quote) $BackNumericEx;
303 $BackRegional_IndicatorEx*;
305 # For dictionary-based break
306 $dictionary $dictionary;
308 ## -------------------------------------------------
313 ($Extend | $Format | $ZWJ)+ .?;
316 ($MidLetterEx | $MidNumLetEx | $Single_QuoteEx) ($ALetterEx | $Hebrew_LetterEx);
319 $Double_QuoteEx $Hebrew_LetterEx;
322 ($MidNumEx | $MidNumLetEx | $Single_QuoteEx) $NumericEx;
325 $Regional_IndicatorEx*;
327 # For dictionary-based break
328 $dictionary $dictionary;