46 lines
1006 B
Plaintext
46 lines
1006 B
Plaintext
#
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# Copyright (C) 2002-2003, International Business Machines Corporation and others.
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# All Rights Reserved.
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#
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# file: char.txt
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#
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# ICU Character Break Rules, also known as Grapheme Cluster Boundaries
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# See Unicode Standard Annex #29.
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# These rules are based on TR29 Version 4.0.0
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#
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#
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# Character Class Definitions.
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# The names are those from TR29.
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#
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$CR = \r;
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$LF = \n;
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$Control = [[:Zl:] [:Zp:] [:Cc:] [:Cf:]];
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$Extend = [[:Grapheme_Extend = TRUE:]];
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#
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# Korean Syllable Definitions
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#
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$L = [:Hangul_Syllable_Type = L:];
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$V = [:Hangul_Syllable_Type = V:];
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$T = [:Hangul_Syllable_Type = T:];
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$LV = [:Hangul_Syllable_Type = LV:];
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$LVT = [:Hangul_Syllable_Type = LVT:];
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$HangulSyllable = $L+ | ($L* ($LV? $V+ | $LV | $LVT) $T*) | $T+;
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#
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# Forward Break Rules
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#
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$CR $LF;
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([^$Control] | $HangulSyllable) $Extend*;
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.;
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#
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# Reverse Rule, back up to the beginning of some preceding grapheme cluster.
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#
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! ($Extend | $V | $T )* ($LF $CR | ($LV | $LVT)?$L* | .);
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