#
-# Copyright (C) 2002-2010, International Business Machines Corporation
+# Copyright (C) 2002-2013, International Business Machines Corporation
# and others. All Rights Reserved.
#
# file: word.txt
#
# ICU Word Break Rules
# See Unicode Standard Annex #29.
-# These rules are based on UAX-29 Revision 16 for Unicode 6.0
+# These rules are based on UAX #29 Revision 20 for Unicode Version 6.2
#
# Note: Updates to word.txt will usually need to be merged into
-# word_POSIX.txt and word_ja.txt also.
+# word_POSIX.txt also.
##############################################################################
#
$Newline = [\p{Word_Break = Newline}];
$Extend = [\p{Word_Break = Extend}];
$Format = [\p{Word_Break = Format}];
+$Hiragana = [:Hiragana:];
$Katakana = [\p{Word_Break = Katakana}];
+$Han = [:Han:];
$ALetter = [\p{Word_Break = ALetter}];
$MidNumLet = [\p{Word_Break = MidNumLet}];
$MidLetter = [\p{Word_Break = MidLetter}];
$Numeric = [\p{Word_Break = Numeric}];
$ExtendNumLet = [\p{Word_Break = ExtendNumLet}];
+$RI_A = \U0001F1E6; # Trail ERTU
+$RI_B = \U0001F1E7; # Trail EGR
+$RI_C = \U0001F1E8; # Trail AHLNZ
+$RI_D = \U0001F1E9; # Trail EK
+$RI_E = \U0001F1EA; # Trail GS
+$RI_F = \U0001F1EB; # Trail IR
+$RI_G = \U0001F1EC; # Trail BR
+$RI_H = \U0001F1ED; # Trail KU
+$RI_I = \U0001F1EE; # Trail DLNT
+$RI_J = \U0001F1EF; # Trail OP
+$RI_K = \U0001F1F0; # Trail R
+$RI_L = \U0001F1F1; # Trail B
+$RI_M = \U0001F1F2; # Trail OXY
+$RI_N = \U0001F1F3; # Trail LO
+$RI_P = \U0001F1F5; # Trail LT
+$RI_R = \U0001F1F7; # Trail OU
+$RI_S = \U0001F1F8; # Trail AEGK
+$RI_T = \U0001F1F9; # Trail HRW
+$RI_U = \U0001F1FA; # Trail AS
+$RI_V = \U0001F1FB; # Trail N
+
+$RI_A_End = [\U0001F1EA \U0001F1F7 \U0001F1F9 \U0001F1FA]; # ERTU
+$RI_B_End = [\U0001F1EA \U0001F1EC \U0001F1F7]; # EGR
+$RI_C_End = [\U0001F1E6 \U0001F1ED \U0001F1F1 \U0001F1F3 \U0001F1FF]; # AHLNZ
+$RI_D_End = [\U0001F1EA \U0001F1F0]; # EK
+$RI_E_End = [\U0001F1EC \U0001F1F8]; # GS
+$RI_F_End = [\U0001F1EE \U0001F1F7]; # IR
+$RI_G_End = [\U0001F1E7 \U0001F1F7]; # BR
+$RI_H_End = [\U0001F1F0 \U0001F1FA]; # KU
+$RI_I_End = [\U0001F1E9 \U0001F1F1 \U0001F1F3 \U0001F1F9]; # DLNT
+$RI_J_End = [\U0001F1F4 \U0001F1F5]; # OP
+$RI_K_End = \U0001F1F7; # R
+$RI_L_End = \U0001F1E7; # B
+$RI_M_End = [\U0001F1F4 \U0001F1FD \U0001F1FE]; # OXY
+$RI_N_End = [\U0001F1F1 \U0001F1F4]; # LO
+$RI_P_End = [\U0001F1F1 \U0001F1F9]; # LT
+$RI_R_End = [\U0001F1F4 \U0001F1FA]; # OU
+$RI_S_End = [\U0001F1E6 \U0001F1EA \U0001F1EC \U0001F1F0]; # AEGK
+$RI_T_End = [\U0001F1ED \U0001F1F7 \U0001F1FC]; # HRW
+$RI_U_End = [\U0001F1E6 \U0001F1F8]; # AS
+$RI_V_End = \U0001F1F3; # N
+
# Dictionary character set, for triggering language-based break engines. Currently
# limited to LineBreak=Complex_Context. Note that this set only works in Unicode
# 5.0 or later as the definition of Complex_Context was corrected to include all
# characters requiring dictionary break.
-$dictionary = [:LineBreak = Complex_Context:];
$Control = [\p{Grapheme_Cluster_Break = Control}];
-$ALetterPlus = [$ALetter [$dictionary-$Extend-$Control]]; # Note: default ALetter does not
- # include the dictionary characters.
+$HangulSyllable = [\uac00-\ud7a3];
+$ComplexContext = [:LineBreak = Complex_Context:];
+$KanaKanji = [$Han $Hiragana $Katakana];
+$dictionaryCJK = [$KanaKanji $HangulSyllable];
+$dictionary = [$ComplexContext $dictionaryCJK];
+
+# leave CJK scripts out of ALetterPlus
+$ALetterPlus = [$ALetter-$dictionaryCJK [$ComplexContext-$Extend-$Control]];
+
#
# Rules 4 Ignore Format and Extend characters,
# except when they appear at the beginning of a region of text.
#
+# TODO: check if handling of katakana in dictionary makes rules incorrect/void
$KatakanaEx = $Katakana ($Extend | $Format)*;
$ALetterEx = $ALetterPlus ($Extend | $Format)*;
$MidNumLetEx = $MidNumLet ($Extend | $Format)*;
$NumericEx = $Numeric ($Extend | $Format)*;
$ExtendNumLetEx = $ExtendNumLet ($Extend | $Format)*;
-$Hiragana = [\p{script=Hiragana}];
$Ideographic = [\p{Ideographic}];
$HiraganaEx = $Hiragana ($Extend | $Format)*;
$IdeographicEx = $Ideographic ($Extend | $Format)*;
# of a region of Text. The rule here comes into play when the start of text
# begins with a group of Format chars, or with a "word" consisting of a single
# char that is not in any of the listed word break categories followed by
-# format char(s).
+# format char(s), or is not a CJK dictionary character.
[^$CR $LF $Newline]? ($Extend | $Format)+;
$NumericEx {100};
$ALetterEx {200};
-$KatakanaEx {300}; # note: these status values override those from rule 5
-$HiraganaEx {300}; # by virtual of being numerically larger.
+$HangulSyllable {200};
+$KatakanaEx {400}; # note: these status values override those from rule 5
+$HiraganaEx {400}; # by virtue of being numerically larger.
$IdeographicEx {400}; #
#
$NumericEx ($MidNumEx | $MidNumLetEx) $NumericEx {100};
# rule 13
-
-$KatakanaEx $KatakanaEx {300};
+# to be consistent with $KanaKanji $KanaKanhi, changed
+# from 300 to 400.
+# See also TestRuleStatus in intltest/rbbiapts.cpp
+$KatakanaEx $KatakanaEx {400};
# rule 13a/b
$ALetterEx $ExtendNumLetEx {200}; # (13a)
$NumericEx $ExtendNumLetEx {100}; # (13a)
-$KatakanaEx $ExtendNumLetEx {300}; # (13a)
+$KatakanaEx $ExtendNumLetEx {400}; # (13a)
$ExtendNumLetEx $ExtendNumLetEx {200}; # (13a)
$ExtendNumLetEx $ALetterEx {200}; # (13b)
$ExtendNumLetEx $NumericEx {100}; # (13b)
-$ExtendNumLetEx $KatakanaEx {300}; # (13b)
-
+$ExtendNumLetEx $KatakanaEx {400}; # (13b)
+
+# rule 13c
+
+$RI_A ($Extend|$Format)* $RI_A_End ($Extend|$Format)*;
+$RI_B ($Extend|$Format)* $RI_B_End ($Extend|$Format)*;
+$RI_C ($Extend|$Format)* $RI_C_End ($Extend|$Format)*;
+$RI_D ($Extend|$Format)* $RI_D_End ($Extend|$Format)*;
+$RI_E ($Extend|$Format)* $RI_E_End ($Extend|$Format)*;
+$RI_F ($Extend|$Format)* $RI_F_End ($Extend|$Format)*;
+$RI_G ($Extend|$Format)* $RI_G_End ($Extend|$Format)*;
+$RI_H ($Extend|$Format)* $RI_H_End ($Extend|$Format)*;
+$RI_I ($Extend|$Format)* $RI_I_End ($Extend|$Format)*;
+$RI_J ($Extend|$Format)* $RI_J_End ($Extend|$Format)*;
+$RI_K ($Extend|$Format)* $RI_K_End ($Extend|$Format)*;
+$RI_L ($Extend|$Format)* $RI_L_End ($Extend|$Format)*;
+$RI_M ($Extend|$Format)* $RI_M_End ($Extend|$Format)*;
+$RI_N ($Extend|$Format)* $RI_N_End ($Extend|$Format)*;
+$RI_P ($Extend|$Format)* $RI_P_End ($Extend|$Format)*;
+$RI_R ($Extend|$Format)* $RI_R_End ($Extend|$Format)*;
+$RI_S ($Extend|$Format)* $RI_S_End ($Extend|$Format)*;
+$RI_T ($Extend|$Format)* $RI_T_End ($Extend|$Format)*;
+$RI_U ($Extend|$Format)* $RI_U_End ($Extend|$Format)*;
+$RI_V ($Extend|$Format)* $RI_V_End ($Extend|$Format)*;
+
+# special handling for CJK characters: chain for later dictionary segmentation
+$HangulSyllable $HangulSyllable {200};
+$KanaKanji $KanaKanji {400}; # different rule status if both kana and kanji found
## -------------------------------------------------
!!reverse;
-$BackALetterEx = ($Format | $Extend)* $ALetterPlus;
-$BackMidNumLetEx = ($Format | $Extend)* $MidNumLet;
-$BackNumericEx = ($Format | $Extend)* $Numeric;
-$BackMidNumEx = ($Format | $Extend)* $MidNum;
-$BackMidLetterEx = ($Format | $Extend)* $MidLetter;
-$BackKatakanaEx = ($Format | $Extend)* $Katakana;
-$BackExtendNumLetEx= ($Format | $Extend)* $ExtendNumLet;
+$BackALetterEx = ($Format | $Extend)* $ALetterPlus;
+$BackMidNumLetEx = ($Format | $Extend)* $MidNumLet;
+$BackNumericEx = ($Format | $Extend)* $Numeric;
+$BackMidNumEx = ($Format | $Extend)* $MidNum;
+$BackMidLetterEx = ($Format | $Extend)* $MidLetter;
+$BackKatakanaEx = ($Format | $Extend)* $Katakana;
+$BackHiraganaEx = ($Format | $Extend)* $Hiragana;
+$BackExtendNumLetEx = ($Format | $Extend)* $ExtendNumLet;
# rule 3
$LF $CR;
$BackExtendNumLetEx ($BackALetterEx | $BackNumericEx | $BackKatakanaEx | $BackExtendNumLetEx);
($BackALetterEx | $BackNumericEx | $BackKatakanaEx) $BackExtendNumLetEx;
+# rule 13c
+
+($Format|$Extend)* $RI_A_End ($Format|$Extend)* $RI_A;
+($Format|$Extend)* $RI_B_End ($Format|$Extend)* $RI_B;
+($Format|$Extend)* $RI_C_End ($Format|$Extend)* $RI_C;
+($Format|$Extend)* $RI_D_End ($Format|$Extend)* $RI_D;
+($Format|$Extend)* $RI_E_End ($Format|$Extend)* $RI_E;
+($Format|$Extend)* $RI_F_End ($Format|$Extend)* $RI_F;
+($Format|$Extend)* $RI_G_End ($Format|$Extend)* $RI_G;
+($Format|$Extend)* $RI_H_End ($Format|$Extend)* $RI_H;
+($Format|$Extend)* $RI_I_End ($Format|$Extend)* $RI_I;
+($Format|$Extend)* $RI_J_End ($Format|$Extend)* $RI_J;
+($Format|$Extend)* $RI_K_End ($Format|$Extend)* $RI_K;
+($Format|$Extend)* $RI_L_End ($Format|$Extend)* $RI_L;
+($Format|$Extend)* $RI_M_End ($Format|$Extend)* $RI_M;
+($Format|$Extend)* $RI_N_End ($Format|$Extend)* $RI_N;
+($Format|$Extend)* $RI_P_End ($Format|$Extend)* $RI_P;
+($Format|$Extend)* $RI_R_End ($Format|$Extend)* $RI_R;
+($Format|$Extend)* $RI_S_End ($Format|$Extend)* $RI_S;
+($Format|$Extend)* $RI_T_End ($Format|$Extend)* $RI_T;
+($Format|$Extend)* $RI_U_End ($Format|$Extend)* $RI_U;
+($Format|$Extend)* $RI_V_End ($Format|$Extend)* $RI_V;
+
+# special handling for CJK characters: chain for later dictionary segmentation
+$HangulSyllable $HangulSyllable;
+$KanaKanji $KanaKanji; #different rule status if both kanji and kana found
+
## -------------------------------------------------
!!safe_reverse;
projects / apple / icu.git / blobdiff