1# 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. 6# 7# file: word_POSIX.txt 8# 9# ICU Word Break Rules, POSIX locale. 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 13# Plus additional characters introduces with Emoji 5, http://www.unicode.org/reports/tr51/proposed.html 14# 15# Note: Updates to word.txt will usually need to be merged into 16# word_POSIX.txt also. 17 18############################################################################## 19# 20# Character class definitions from TR 29 21# 22############################################################################## 23 24!!chain; 25!!quoted_literals_only; 26 27 28# 29# Character Class Definitions. 30# 31 32$CR = [\p{Word_Break = CR}]; 33$LF = [\p{Word_Break = LF}]; 34$Newline = [\p{Word_Break = Newline} ]; 35$Extend = [\p{Word_Break = Extend}]; 36$ZWJ = [\p{Word_Break = ZWJ}]; 37$Regional_Indicator = [\p{Word_Break = Regional_Indicator}]; 38$Format = [\p{Word_Break = Format}]; 39$Katakana = [\p{Word_Break = Katakana}]; 40$Hebrew_Letter = [\p{Word_Break = Hebrew_Letter}]; 41$ALetter = [\p{Word_Break = ALetter}]; 42$Single_Quote = [\p{Word_Break = Single_Quote}]; 43$Double_Quote = [\p{Word_Break = Double_Quote}]; 44$MidNumLet = [\p{Word_Break = MidNumLet} - [.]]; 45$MidLetter = [\p{Word_Break = MidLetter} - [\:]]; 46$MidNum = [\p{Word_Break = MidNum} [.]]; 47$Numeric = [\p{Word_Break = Numeric}]; 48$ExtendNumLet = [\p{Word_Break = ExtendNumLet}]; 49$E_Base = [\p{Word_Break = EB}]; 50$E_Modifier = [\p{Word_Break = EM}]; 51 52# Data for Extended Pictographic scraped from CLDR common/properties/ExtendedPictographic.txt, r13267 53$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]; 54$EBG = [\p{Word_Break = EBG}]; 55$EmojiNRK = [[\p{Emoji}] - [\p{Word_Break = Regional_Indicator}\u002a\u00230-9©®™〰〽]]; 56 57$Han = [:Han:]; 58$Hiragana = [:Hiragana:]; 59 60 61# Dictionary character set, for triggering language-based break engines. Currently 62# limited to LineBreak=Complex_Context. Note that this set only works in Unicode 63# 5.0 or later as the definition of Complex_Context was corrected to include all 64# characters requiring dictionary break. 65 66$Control = [\p{Grapheme_Cluster_Break = Control}]; 67$HangulSyllable = [\uac00-\ud7a3]; 68$ComplexContext = [:LineBreak = Complex_Context:]; 69$KanaKanji = [$Han $Hiragana $Katakana]; 70$dictionaryCJK = [$KanaKanji $HangulSyllable]; 71$dictionary = [$ComplexContext $dictionaryCJK]; 72 73# leave CJK scripts out of ALetterPlus 74$ALetterPlus = [$ALetter-$dictionaryCJK [$ComplexContext-$Extend-$Control]]; 75 76 77# 78# Rules 4 Ignore Format and Extend characters, 79# except when they appear at the beginning of a region of text. 80# 81# TODO: check if handling of katakana in dictionary makes rules incorrect/void 82$KatakanaEx = $Katakana ($Extend | $Format | $ZWJ)*; 83$Hebrew_LetterEx = $Hebrew_Letter ($Extend | $Format | $ZWJ)*; 84$ALetterEx = $ALetterPlus ($Extend | $Format | $ZWJ)*; 85$Single_QuoteEx = $Single_Quote ($Extend | $Format | $ZWJ)*; 86$Double_QuoteEx = $Double_Quote ($Extend | $Format | $ZWJ)*; 87$MidNumLetEx = $MidNumLet ($Extend | $Format | $ZWJ)*; 88$MidLetterEx = $MidLetter ($Extend | $Format | $ZWJ)*; 89$MidNumEx = $MidNum ($Extend | $Format | $ZWJ)*; 90$NumericEx = $Numeric ($Extend | $Format | $ZWJ)*; 91$ExtendNumLetEx = $ExtendNumLet ($Extend | $Format | $ZWJ)*; 92$Regional_IndicatorEx = $Regional_Indicator ($Extend | $Format | $ZWJ)*; 93 94$Ideographic = [\p{Ideographic}]; 95$HiraganaEx = $Hiragana ($Extend | $Format | $ZWJ)*; 96$IdeographicEx = $Ideographic ($Extend | $Format | $ZWJ)*; 97 98## ------------------------------------------------- 99 100!!forward; 101 102 103# Rule 3 - CR x LF 104# 105$CR $LF; 106 107# Rule 3c ZWJ x (Extended_Pict | EmojiNRK). Precedes WB4, so no intervening Extend chars allowed. 108# 109$ZWJ ($Extended_Pict | $EmojiNRK); 110 111 112# Rule 4 - ignore Format and Extend characters, except when they appear at the beginning 113# of a region of Text. The rule here comes into play when the start of text 114# begins with a group of Format chars, or with a "word" consisting of a single 115# char that is not in any of the listed word break categories followed by 116# format char(s), or is not a CJK dictionary character. 117[^$CR $LF $Newline]? ($Extend | $Format | $ZWJ)+; 118 119$NumericEx {100}; 120$ALetterEx {200}; 121$HangulSyllable {200}; 122$Hebrew_LetterEx{200}; 123$KatakanaEx {400}; # note: these status values override those from rule 5 124$HiraganaEx {400}; # by virtue of being numerically larger. 125$IdeographicEx {400}; # 126 127$E_Base ($Extend | $Format | $ZWJ)*; 128$E_Modifier ($Extend | $Format | $ZWJ)*; 129$Extended_Pict ($Extend | $Format | $ZWJ)*; 130 131# 132# rule 5 133# Do not break between most letters. 134# 135($ALetterEx | $Hebrew_LetterEx) ($ALetterEx | $Hebrew_LetterEx) {200}; 136 137# rule 6 and 7 138($ALetterEx | $Hebrew_LetterEx) ($MidLetterEx | $MidNumLetEx | $Single_QuoteEx) ($ALetterEx | $Hebrew_LetterEx) {200}; 139 140# rule 7a 141$Hebrew_LetterEx $Single_QuoteEx {200}; 142 143# rule 7b and 7c 144$Hebrew_LetterEx $Double_QuoteEx $Hebrew_LetterEx {200}; 145 146# rule 8 147 148$NumericEx $NumericEx {100}; 149 150# rule 9 151 152($ALetterEx | $Hebrew_LetterEx) $NumericEx {200}; 153 154# rule 10 155 156$NumericEx ($ALetterEx | $Hebrew_LetterEx) {200}; 157 158# rule 11 and 12 159 160$NumericEx ($MidNumEx | $MidNumLetEx | $Single_QuoteEx) $NumericEx {100}; 161 162# rule 13 163# to be consistent with $KanaKanji $KanaKanhi, changed 164# from 300 to 400. 165# See also TestRuleStatus in intltest/rbbiapts.cpp 166$KatakanaEx $KatakanaEx {400}; 167 168# rule 13a/b 169 170$ALetterEx $ExtendNumLetEx {200}; # (13a) 171$Hebrew_LetterEx $ExtendNumLetEx {200}; # (13a) 172$NumericEx $ExtendNumLetEx {100}; # (13a) 173$KatakanaEx $ExtendNumLetEx {400}; # (13a) 174$ExtendNumLetEx $ExtendNumLetEx {200}; # (13a) 175 176$ExtendNumLetEx $ALetterEx {200}; # (13b) 177$ExtendNumLetEx $Hebrew_Letter {200}; # (13b) 178$ExtendNumLetEx $NumericEx {100}; # (13b) 179$ExtendNumLetEx $KatakanaEx {400}; # (13b) 180 181# rule 14 182# Do not break within emoji modifier sequences 183 184($E_Base | $EBG) ($Format | $Extend | $ZWJ)* $E_Modifier; 185 186# rules 15 - 17 187# Pairs of Regional Indicators stay together. 188# With rule chaining disabled by ^, this rule will match exactly two of them. 189# No other rule begins with a Regional_Indicator, so chaining cannot extend the match. 190# 191^$Regional_IndicatorEx $Regional_IndicatorEx; 192 193# special handling for CJK characters: chain for later dictionary segmentation 194$HangulSyllable $HangulSyllable {200}; 195$KanaKanji $KanaKanji {400}; # different rule status if both kana and kanji found 196 197# Rule 999 198# Match a single code point if no other rule applies. 199.; 200 201 202## ------------------------------------------------- 203 204!!safe_reverse; 205 206# rule 3 207($Extend | $Format | $ZWJ)+ .?; 208 209# rule 6 210($MidLetter | $MidNumLet | $Single_Quote) ($Format | $Extend | $ZWJ)* ($Hebrew_Letter | $ALetterPlus); 211 212# rule 7b 213$Double_Quote ($Format | $Extend | $ZWJ)* $Hebrew_Letter; 214 215 216# rule 11 217($MidNum | $MidNumLet | $Single_Quote) ($Format | $Extend | $ZWJ)* $Numeric; 218 219# rule 13c 220$Regional_Indicator ($Format | $Extend | $ZWJ)* $Regional_Indicator; 221 222# For dictionary-based break 223$dictionary $dictionary; 224