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64 lines
1.6 KiB
Text
64 lines
1.6 KiB
Text
#
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# Copyright (C) 2002-2006, 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 5.0.0
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# Includes post-5.0 change to treat Japanese half width voicing marks
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# as Grapheme Extend.
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#
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#
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# Character Class Definitions.
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#
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$CR = [\p{Grapheme_Cluster_Break = CR}];
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$LF = [\p{Grapheme_Cluster_Break = LF}];
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$Control = [\p{Grapheme_Cluster_Break = Control}];
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# add Japanese Half Width voicing marks to $Extend
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$VoiceMarks = [\uff9e\uff9f];
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$Extend = [\p{Grapheme_Cluster_Break = Extend} $VoiceMarks];
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#
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# Korean Syllable Definitions
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#
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$L = [\p{Grapheme_Cluster_Break = L}];
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$V = [\p{Grapheme_Cluster_Break = V}];
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$T = [\p{Grapheme_Cluster_Break = T}];
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$LV = [\p{Grapheme_Cluster_Break = LV}];
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$LVT = [\p{Grapheme_Cluster_Break = LVT}];
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$HangulSyllable = $L+ | ($L* ($LV? $V+ | $LV | $LVT) $T*) | $T+;
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## -------------------------------------------------
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!!forward;
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$CR $LF;
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([^$Control $CR $LF] | $HangulSyllable) $Extend*;
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## -------------------------------------------------
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!!reverse;
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$BackHangulSyllable = $L+ | ($T* ($V+$LV? | $LV | $LVT) $L*) | $T+;
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$BackOneCluster = ($LF $CR) | ($Extend* ([^$Control $CR $LF] | $BackHangulSyllable));
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$BackOneCluster;
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## -------------------------------------------------
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!!safe_reverse;
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# rule 6, 7, 8
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$V+ $L;
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## -------------------------------------------------
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!!safe_forward;
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# rule 6, 7, 8
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$V+ $T;
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