| # |
| # Copyright (C) 2002-2006, International Business Machines Corporation |
| # and others. All Rights Reserved. |
| # |
| # file: word.txt |
| # |
| # ICU Word Break Rules, POSIX locale. |
| # See Unicode Standard Annex #29. |
| # These rules are based on Unicode Version 5.0 0 |
| # Includes post Unicode 5.0 change to treat Japanese half width voicing marks |
| # as Extend |
| # |
| # Note: Updates to word.txt will usually need to be merged into |
| # word_POSIX.txt and word_ja.txt also. |
| |
| ############################################################################## |
| # |
| # Character class definitions from TR 29 |
| # |
| ############################################################################## |
| |
| !!chain; |
| |
| |
| # |
| # Character Class Definitions. |
| # |
| |
| $VoiceMarks = [\uff9e\uff9f]; |
| $Format = [\p{Word_Break = Format}]; |
| $Katakana = [\p{Word_Break = Katakana}-$VoiceMarks]; |
| $ALetter = [\p{Word_Break = ALetter}]; |
| $MidLetter = [\p{Word_Break = MidLetter} - [ \:]]; |
| $MidNum = [\p{Word_Break = MidNum}]; |
| $Numeric = [\p{Word_Break = Numeric}]; |
| $ExtendNumLet = [\p{Word_Break = ExtendNumLet}]; |
| |
| |
| $CR = \u000d; |
| $LF = \u000a; |
| $Extend = [\p{Grapheme_Cluster_Break = Extend}$VoiceMarks]; |
| $Control = [\p{Grapheme_Cluster_Break = Control}]; |
| |
| # Dictionary character set, for triggering language-based break engines. Currently |
| # limited to LineBreak=Complex_Context. Note that this set only works in Unicode |
| # 5.0 or later as the definition of Complex_Context was corrected to include all |
| # characters requiring dictionary break. |
| |
| $dictionary = [:LineBreak = Complex_Context:]; |
| $ALetterPlus = [$ALetter [$dictionary-$Extend-$Control]]; |
| |
| |
| # |
| # Rules 3 Grapheme Clusters behave like their first char. |
| # Rule 4 Ignore trailing Format characters (Also see note in TR 29) |
| # |
| $KatakanaEx = $Katakana ($Extend | $Format)*; |
| $ALetterEx = $ALetterPlus ($Extend | $Format)*; |
| $MidLetterEx = $MidLetter ($Extend | $Format)*; |
| $MidNumEx = $MidNum ($Extend | $Format)*; |
| $NumericEx = $Numeric ($Extend | $Format)*; |
| $ExtendNumLetEx = $ExtendNumLet ($Extend | $Format)*; |
| |
| $Hiragana = [:Hiragana:]; |
| $Ideographic = [:IDEOGRAPHIC:]; |
| $HiraganaEx = $Hiragana ($Extend | $Format)*; |
| $IdeographicEx = $Ideographic ($Extend | $Format)*; |
| |
| ## ------------------------------------------------- |
| |
| !!forward; |
| |
| |
| # Rule 3 - CR x LF |
| # see character breaks. |
| |
| $CR $LF ($Extend | $Format)*; |
| |
| # Rule 4 - ignore Format and Extend characters, except when they appear at the beginning |
| # of a region of Text. The rule here comes into play when the start of text |
| # begins with a group of Format chars, or with a "word" consisting of a single |
| # char that is not in any of the listed word break categories followed by |
| # format char(s). |
| .? ($Extend | $Format)+; |
| |
| |
| $NumericEx {100}; |
| $ALetterEx {200}; |
| $KatakanaEx {300}; |
| $HiraganaEx {300}; |
| $IdeographicEx {400}; |
| |
| # rule 5 |
| |
| $ALetterEx $ALetterEx {200}; |
| |
| # rule 6 and 7 |
| $ALetterEx $MidLetterEx $ALetterEx {200}; |
| |
| # rule 8 |
| |
| $NumericEx $NumericEx {100}; |
| |
| # rule 9 |
| |
| $ALetterEx $Format* $NumericEx {200}; |
| |
| # rule 10 |
| |
| $NumericEx $ALetterEx {200}; |
| |
| # rule 11 and 12 |
| |
| $NumericEx $MidNumEx $NumericEx {100}; |
| |
| # rule 13 |
| |
| $KatakanaEx $KatakanaEx {300}; |
| |
| # rule 13a/b |
| |
| $ALetterEx $ExtendNumLetEx {200}; # (13a) |
| $NumericEx $ExtendNumLetEx {100}; # (13a) |
| $KatakanaEx $ExtendNumLetEx {300}; # (13a) |
| $ExtendNumLetEx $ExtendNumLetEx{200}; # (13a) |
| |
| $ExtendNumLetEx $ALetterEx {200}; # (13b) |
| $ExtendNumLetEx $NumericEx {100}; # (13b) |
| $ExtendNumLetEx $KatakanaEx {300}; # (13b) |
| |
| |
| |
| ## ------------------------------------------------- |
| |
| !!reverse; |
| |
| $BackALetterEx = ($Format | $Extend)* $ALetterPlus; |
| $BackNumericEx = ($Format | $Extend)* $Numeric; |
| $BackMidNumEx = ($Format | $Extend)* $MidNum; |
| $BackMidLetterEx = ($Format | $Extend)* $MidLetter; |
| $BackKatakanaEx = ($Format | $Extend)* $Katakana; |
| $BackExtendNumLetEx= ($Format | $Extend)* $ExtendNumLet; |
| |
| # rule 3 |
| ($Format | $Extend)* $LF $CR; |
| |
| # rule 4 |
| ($Format | $Extend)* .?; |
| |
| # rule 5 |
| |
| $BackALetterEx $BackALetterEx; |
| |
| # rule 6 and 7 |
| |
| $BackALetterEx $BackMidLetterEx $BackALetterEx; |
| |
| |
| # rule 8 |
| |
| $BackNumericEx $BackNumericEx; |
| |
| # rule 9 |
| |
| $BackNumericEx $BackALetterEx; |
| |
| # rule 10 |
| |
| $BackALetterEx $BackNumericEx; |
| |
| # rule 11 and 12 |
| |
| $BackNumericEx $BackMidNumEx $BackNumericEx; |
| |
| # rule 13 |
| |
| $BackKatakanaEx $BackKatakanaEx; |
| |
| # rules 13 a/b |
| # |
| ($BackALetterEx | $BackNumericEx | $BackKatakanaEx | $BackExtendNumLetEx) $BackExtendNumLetEx; |
| $BackExtendNumLetEx ($BackALetterEx | $BackNumericEx | $BackKatakanaEx); |
| |
| ## ------------------------------------------------- |
| |
| !!safe_reverse; |
| |
| # rule 3 |
| ($Extend | $Format)+ .?; |
| |
| # rule 6 |
| $MidLetter $BackALetterEx; |
| |
| # rule 11 |
| $MidNum $BackNumericEx; |
| |
| # For dictionary-based break |
| $dictionary $dictionary; |
| |
| ## ------------------------------------------------- |
| |
| !!safe_forward; |
| |
| # rule 4 |
| ($Extend | $Format)+ .?; |
| |
| # rule 6 |
| $MidLetterEx $ALetterEx; |
| |
| # rule 11 |
| $MidNumEx $NumericEx; |
| |
| # For dictionary-based break |
| $dictionary $dictionary; |