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#
# Copyright (C) 2002, International Business Machines Corporation and others.
# All Rights Reserved.
#
# file: char.txt
#
# ICU Character Break Rules, also known as Grapheme Cluster Boundaries
# See Unicode Technical Report #29.
# These rules are based on the proposed draft dated 2002-08-06
#
#
# Character Class Definitions.
# The names are those from TR29.
#
$CR = \r;
$LF = \n;
$Control = [[:Zl:] [:Zp:] [:Cc:] [:Cf:]];
$Extend = [[:Grapheme_Extend = TRUE:]];
#
# Korean Syllable Definitions
#
$L = [:Hangul_Syllable_Type = L:];
$V = [:Hangul_Syllable_Type = V:];
$T = [:Hangul_Syllable_Type = T:];
$LV = [:Hangul_Syllable_Type = LV:];
$LVT = [:Hangul_Syllable_Type = LVT:];
$HangulSyllable = $L+ | ($L* ($LV? $V+ | $LV | $LVT) $T*) | $T+;
$CR $LF;
([^$Control] | $HangulSyllable) $Extend*;
.;
#
# Reverse Rule, back up to the beginning of some preceding grapheme cluster.
#
! ($Extend | $V | $T )* ($LF $CR | ($LV | $LVT)?$L* | .);