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+#
+# Copyright (C) 2002-2006, International Business Machines Corporation and others.
+# All Rights Reserved.
+#
+# file: char.txt
+#
+# ICU Character Break Rules, also known as Grapheme Cluster Boundaries
+# See Unicode Standard Annex #29.
+# These rules are based on TR29 Version 5.0.0
+# Includes post-5.0 change to treat Japanese half width voicing marks
+# as Grapheme Extend.
+#
+
+#
+# Character Class Definitions.
+#
+$CR = [\p{Grapheme_Cluster_Break = CR}];
+$LF = [\p{Grapheme_Cluster_Break = LF}];
+$Control = [\p{Grapheme_Cluster_Break = Control}];
+
+# add Japanese Half Width voicing marks to $Extend
+$VoiceMarks = [\uff9e\uff9f];
+$Extend = [\p{Grapheme_Cluster_Break = Extend} $VoiceMarks];
+
+#
+# Korean Syllable Definitions
+#
+$L = [\p{Grapheme_Cluster_Break = L}];
+$V = [\p{Grapheme_Cluster_Break = V}];
+$T = [\p{Grapheme_Cluster_Break = T}];
+
+$LV = [\p{Grapheme_Cluster_Break = LV}];
+$LVT = [\p{Grapheme_Cluster_Break = LVT}];
+
+$HangulSyllable = $L+ | ($L* ($LV? $V+ | $LV | $LVT) $T*) | $T+;
+
+## -------------------------------------------------
+
+!!forward;
+
+$CR $LF;
+([^$Control $CR $LF] | $HangulSyllable) $Extend*;
+
+## -------------------------------------------------
+
+!!reverse;
+
+$BackHangulSyllable = $L+ | ($T* ($V+$LV? | $LV | $LVT) $L*) | $T+;
+$BackOneCluster = ($LF $CR) | ($Extend* ([^$Control $CR $LF] | $BackHangulSyllable));
+$BackOneCluster;
+
+## -------------------------------------------------
+
+!!safe_reverse;
+
+# rule 6, 7, 8
+$V+ $L;
+
+## -------------------------------------------------
+
+!!safe_forward;
+
+# rule 6, 7, 8
+$V+ $T;