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Unified Diff: source/data/brkitr/rules/word.txt

Issue 2440913002: Update ICU to 58.1
Patch Set: Created 4 years, 2 months ago
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Index: source/data/brkitr/rules/word.txt
diff --git a/source/data/brkitr/word.txt b/source/data/brkitr/rules/word.txt
similarity index 51%
rename from source/data/brkitr/word.txt
rename to source/data/brkitr/rules/word.txt
index c74da4cdd9c5867e1b8152d3b76d9e4f39ec90b5..9c93dd51e4683d92e01e38b58f86bce91e51733c 100644
--- a/source/data/brkitr/word.txt
+++ b/source/data/brkitr/rules/word.txt
@@ -1,12 +1,15 @@
-#
-# Copyright (C) 2002-2013, International Business Machines Corporation
+#
+# Copyright (C) 2016 and later: Unicode, Inc. and others.
+# License & terms of use: http://www.unicode.org/copyright.html
+# Copyright (C) 2002-2016, International Business Machines Corporation
# and others. All Rights Reserved.
#
# file: word.txt
#
# ICU Word Break Rules
# See Unicode Standard Annex #29.
-# These rules are based on UAX #29 Revision 22 for Unicode Version 6.3
+# These rules are based on UAX #29 Revision 29 for Unicode Version 9.0
+# with additions for Emoji Sequences from https://goo.gl/cluFCn
#
# Note: Updates to word.txt will usually need to be merged into
# word_POSIX.txt also.
@@ -26,8 +29,9 @@
$CR = [\p{Word_Break = CR}];
$LF = [\p{Word_Break = LF}];
-$Newline = [\p{Word_Break = Newline}];
+$Newline = [\p{Word_Break = Newline} ];
$Extend = [\p{Word_Break = Extend}];
+$ZWJ = [\p{Word_Break = ZWJ}];
$Regional_Indicator = [\p{Word_Break = Regional_Indicator}];
$Format = [\p{Word_Break = Format}];
$Katakana = [\p{Word_Break = Katakana}];
@@ -46,6 +50,13 @@ $MidLetter = [\p{Word_Break = MidLetter}];
$MidNum = [\p{Word_Break = MidNum}[\u002E \uFF0E]];
$Numeric = [\p{Word_Break = Numeric}[\uff10-\uff19]]; #includes fullwidth digits
$ExtendNumLet = [\p{Word_Break = ExtendNumLet}];
+$E_Base = [\p{Word_Break = EB}\U0001F3C2\U0001F3C7\U0001F3CC\U0001F46A-\U0001F46D\U0001F46F\U0001F574\U0001F6CC];
+$E_Modifier = [\p{Word_Break = EM}];
+
+# Data for Extended Pictographic scraped from CLDR common/properties/ExtendedPictographic.txt, r12773
+$Extended_Pict = [\U0001F774-\U0001F77F\u2700-\u2701\u2703-\u2704\u270E\u2710-\u2711\u2765-\u2767\U0001F030-\U0001F093\U0001F094-\U0001F09F\U0001F10D-\U0001F10F\U0001F12F\U0001F16C-\U0001F16F\U0001F1AD-\U0001F1E5\U0001F203-\U0001F20F\U0001F23C-\U0001F23F\U0001F249-\U0001F24F\U0001F252-\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\u2605\u2607-\u260D\u260F-\u2610\u2612\u2616-\u2617\u2619-\u261C\u261E-\u261F\u2621\u2624-\u2625\u2627-\u2629\u262B-\u262D\u2630-\u2637\u263B-\u2647\u2654-\u265F\u2661-\u2662\u2664\u2667\u2669-\u267A\u267C-\u267E\u2680-\u2691\u2695\u2698\u269A\u269D-\u269F\u26A2-\u26A9\u26AC-\u26AF\u26B2-\u26BC\u26BF-\u26C3\u26C6-\u26C7\u26C9-\u26CD\u26D0\u26D2\u26D5-\u26E8\u26EB-\u26EF\u26F6\u26FB-\u26FC\u26FE-\u26FF\u2388\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-\U0001F90F\U0001F91F\U0001F928-\U0001F92F\U0001F931-\U0001F932\U0001F93F\U0001F94C-\U0001F94F\U0001F95F-\U0001F97F\U0001F992-\U0001F9BF\U0001F9C1-\U0001F9FF\U0001F6C6-\U0001F6CA\U0001F6E6-\U0001F6E8\U0001F6EA\U0001F6F1-\U0001F6F2\U0001F6D3-\U0001F6DF\U0001F6ED-\U0001F6EF\U0001F6F7-\U0001F6FF];
+$EBG = [\p{Word_Break = EBG}];
+$EmojiNRK = [[\p{Emoji}] - [\p{Word_Break = Regional_Indicator}\u002a\u00230-9©®™〰〽]];
$Han = [:Han:];
$Hiragana = [:Hiragana:];
@@ -72,21 +83,21 @@ $ALetterPlus = [$ALetter-$dictionaryCJK [$ComplexContext-$Extend-$Control]];
# except when they appear at the beginning of a region of text.
#
# TODO: check if handling of katakana in dictionary makes rules incorrect/void
-$KatakanaEx = $Katakana ($Extend | $Format)*;
-$Hebrew_LetterEx = $Hebrew_Letter ($Extend | $Format)*;
-$ALetterEx = $ALetterPlus ($Extend | $Format)*;
-$Single_QuoteEx = $Single_Quote ($Extend | $Format)*;
-$Double_QuoteEx = $Double_Quote ($Extend | $Format)*;
-$MidNumLetEx = $MidNumLet ($Extend | $Format)*;
-$MidLetterEx = $MidLetter ($Extend | $Format)*;
-$MidNumEx = $MidNum ($Extend | $Format)*;
-$NumericEx = $Numeric ($Extend | $Format)*;
-$ExtendNumLetEx = $ExtendNumLet ($Extend | $Format)*;
-$Regional_IndicatorEx = $Regional_Indicator ($Extend | $Format)*;
+$KatakanaEx = $Katakana ($Extend | $Format | $ZWJ)*;
+$Hebrew_LetterEx = $Hebrew_Letter ($Extend | $Format | $ZWJ)*;
+$ALetterEx = $ALetterPlus ($Extend | $Format | $ZWJ)*;
+$Single_QuoteEx = $Single_Quote ($Extend | $Format | $ZWJ)*;
+$Double_QuoteEx = $Double_Quote ($Extend | $Format | $ZWJ)*;
+$MidNumLetEx = $MidNumLet ($Extend | $Format | $ZWJ)*;
+$MidLetterEx = $MidLetter ($Extend | $Format | $ZWJ)*;
+$MidNumEx = $MidNum ($Extend | $Format | $ZWJ)*;
+$NumericEx = $Numeric ($Extend | $Format | $ZWJ)*;
+$ExtendNumLetEx = $ExtendNumLet ($Extend | $Format | $ZWJ)*;
+$Regional_IndicatorEx = $Regional_Indicator ($Extend | $Format | $ZWJ)*;
$Ideographic = [\p{Ideographic}];
-$HiraganaEx = $Hiragana ($Extend | $Format)*;
-$IdeographicEx = $Ideographic ($Extend | $Format)*;
+$HiraganaEx = $Hiragana ($Extend | $Format | $ZWJ)*;
+$IdeographicEx = $Ideographic ($Extend | $Format | $ZWJ)*;
## -------------------------------------------------
@@ -97,12 +108,17 @@ $IdeographicEx = $Ideographic ($Extend | $Format)*;
#
$CR $LF;
+# Rule 3c ZWJ x (Extended_Pict | EmojiNRK). Precedes WB4, so no intervening Extend chars allowed.
+#
+$ZWJ ($Extended_Pict | $EmojiNRK);
+
+
# Rule 4 - ignore Format and Extend characters, except when they appear at the beginning
# of a region of Text. The rule here comes into play when the start of text
# begins with a group of Format chars, or with a "word" consisting of a single
# char that is not in any of the listed word break categories followed by
# format char(s), or is not a CJK dictionary character.
-[^$CR $LF $Newline]? ($Extend | $Format)+;
+[^$CR $LF $Newline]? ($Extend | $Format | $ZWJ)+;
$NumericEx {100};
$ALetterEx {200};
@@ -112,6 +128,10 @@ $KatakanaEx {400}; # note: these status values override those from rule 5
$HiraganaEx {400}; # by virtue of being numerically larger.
$IdeographicEx {400}; #
+$E_Base ($Extend | $Format | $ZWJ)*;
+$E_Modifier ($Extend | $Format | $ZWJ)*;
+$Extended_Pict ($Extend | $Format | $ZWJ)*;
+
#
# rule 5
# Do not break between most letters.
@@ -162,9 +182,17 @@ $ExtendNumLetEx $Hebrew_Letter {200}; # (13b)
$ExtendNumLetEx $NumericEx {100}; # (13b)
$ExtendNumLetEx $KatakanaEx {400}; # (13b)
-# rule 13c
+# rule 14
+# Do not break within emoji modifier sequences
-$Regional_IndicatorEx $Regional_IndicatorEx;
+($E_Base | $EBG) ($Format | $Extend | $ZWJ)* $E_Modifier;
+
+# rules 15 - 17
+# Pairs of Regional Indicators stay together.
+# With rule chaining disabled by ^, this rule will match exactly two of them.
+# No other rule begins with a Regional_Indicator, so chaining cannot extend the match.
+#
+^$Regional_IndicatorEx $Regional_IndicatorEx;
# special handling for CJK characters: chain for later dictionary segmentation
$HangulSyllable $HangulSyllable {200};
@@ -175,24 +203,28 @@ $KanaKanji $KanaKanji {400}; # different rule status if both kana and kanji foun
!!reverse;
-$BackHebrew_LetterEx = ($Format | $Extend)* $Hebrew_Letter;
-$BackALetterEx = ($Format | $Extend)* $ALetterPlus;
-$BackSingle_QuoteEx = ($Format | $Extend)* $Single_Quote;
-$BackDouble_QuoteEx = ($Format | $Extend)* $Double_Quote;
-$BackMidNumLetEx = ($Format | $Extend)* $MidNumLet;
-$BackNumericEx = ($Format | $Extend)* $Numeric;
-$BackMidNumEx = ($Format | $Extend)* $MidNum;
-$BackMidLetterEx = ($Format | $Extend)* $MidLetter;
-$BackKatakanaEx = ($Format | $Extend)* $Katakana;
-$BackHiraganaEx = ($Format | $Extend)* $Hiragana;
-$BackExtendNumLetEx = ($Format | $Extend)* $ExtendNumLet;
-$BackRegional_IndicatorEx = ($Format | $Extend)* $Regional_Indicator;
+$BackHebrew_LetterEx = ($Format | $Extend | $ZWJ)* $Hebrew_Letter;
+$BackALetterEx = ($Format | $Extend | $ZWJ)* $ALetterPlus;
+$BackSingle_QuoteEx = ($Format | $Extend | $ZWJ)* $Single_Quote;
+$BackDouble_QuoteEx = ($Format | $Extend | $ZWJ)* $Double_Quote;
+$BackMidNumLetEx = ($Format | $Extend | $ZWJ)* $MidNumLet;
+$BackNumericEx = ($Format | $Extend | $ZWJ)* $Numeric;
+$BackMidNumEx = ($Format | $Extend | $ZWJ)* $MidNum;
+$BackMidLetterEx = ($Format | $Extend | $ZWJ)* $MidLetter;
+$BackKatakanaEx = ($Format | $Extend | $ZWJ)* $Katakana;
+$BackHiraganaEx = ($Format | $Extend | $ZWJ)* $Hiragana;
+$BackExtendNumLetEx = ($Format | $Extend | $ZWJ)* $ExtendNumLet;
+$BackRegional_IndicatorEx = ($Format | $Extend | $ZWJ)* $Regional_Indicator;
# rule 3
$LF $CR;
+# Rule 3c ZWJ x (Extended_Pict | EmojiNRK). Precedes WB4, so no intervening Extend chars allowed.
+#
+($Extended_Pict | $EmojiNRK) $ZWJ;
+
# rule 4
-($Format | $Extend)* [^$CR $LF $Newline]?;
+($Format | $Extend | $ZWJ)* [^$CR $LF $Newline]?;
# rule 5
@@ -233,20 +265,35 @@ $BackKatakanaEx $BackKatakanaEx;
$BackExtendNumLetEx ($BackALetterEx | $BackHebrew_LetterEx | $BackNumericEx | $BackKatakanaEx | $BackExtendNumLetEx);
($BackALetterEx | $BackHebrew_LetterEx | $BackNumericEx | $BackKatakanaEx) $BackExtendNumLetEx;
-# rule 13c
-
-$BackRegional_IndicatorEx $BackRegional_IndicatorEx;
-
# special handling for CJK characters: chain for later dictionary segmentation
$HangulSyllable $HangulSyllable;
$KanaKanji $KanaKanji; #different rule status if both kanji and kana found
+# rule 14
+
+$E_Modifier ($Format | $Extend | $ZWJ)* ($E_Base | $EBG);
+
+# rule 15 - 17
+# Pairs of Regional Indicators stay together.
+
+^$BackRegional_IndicatorEx / ($BackRegional_IndicatorEx $BackRegional_IndicatorEx)*
+ ($Format | $Extend | $ZWJ)* [[^$Regional_Indicator $Format $Extend $ZWJ] {eof}];
+^$BackRegional_IndicatorEx $BackRegional_IndicatorEx / ($BackRegional_IndicatorEx $BackRegional_IndicatorEx)*
+ ($Format | $Extend | $ZWJ)* [[^$Regional_Indicator $Format $Extend $ZWJ] {eof}];
+
+($Extended_Pict | $EmojiNRK) $ZWJ $BackRegional_IndicatorEx / ($BackRegional_IndicatorEx $BackRegional_IndicatorEx)*
+ ($Format | $Extend | $ZWJ)* [[^$Regional_Indicator $Format $Extend $ZWJ] {eof}];
+($Extended_Pict | $EmojiNRK) $ZWJ $BackRegional_IndicatorEx $BackRegional_IndicatorEx / ($BackRegional_IndicatorEx $BackRegional_IndicatorEx)*
+ ($Format | $Extend | $ZWJ)* [[^$Regional_Indicator $Format $Extend $ZWJ] {eof}];
+
+
+
## -------------------------------------------------
!!safe_reverse;
# rule 3
-($Extend | $Format)+ .?;
+($Extend | $Format | $ZWJ)+ .?;
# rule 6
($MidLetter | $MidNumLet | $Single_Quote) ($BackALetterEx | $BackHebrew_LetterEx);
@@ -258,6 +305,9 @@ $Double_Quote $BackHebrew_LetterEx;
# rule 11
($MidNum | $MidNumLet | $Single_Quote) $BackNumericEx;
+# rule 13c
+$BackRegional_IndicatorEx*;
+
# For dictionary-based break
$dictionary $dictionary;
@@ -266,7 +316,7 @@ $dictionary $dictionary;
!!safe_forward;
# rule 4
-($Extend | $Format)+ .?;
+($Extend | $Format | $ZWJ)+ .?;
# rule 6
($MidLetterEx | $MidNumLetEx | $Single_QuoteEx) ($ALetterEx | $Hebrew_LetterEx);
@@ -277,5 +327,8 @@ $Double_QuoteEx $Hebrew_LetterEx;
# rule 11
($MidNumEx | $MidNumLetEx | $Single_QuoteEx) $NumericEx;
+# rule 13c
+$Regional_IndicatorEx*;
+
# For dictionary-based break
$dictionary $dictionary;
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