-# Copyright (c) 2002-2012 International Business Machines Corporation and
+# Copyright (c) 2002-2015 International Business Machines Corporation and
# others. All Rights Reserved.
#
# file: line_ja.txt
$XX = [:LineBreak = Unknown:];
$ZW = [:LineBreak = ZWSpace:];
+# Special character classes for people & body part emoji:
+# Subsets of $CM:
+$ZWJ = \u200D;
+$EmojiVar = \uFE0F;
+# The following are subsets of $ID
+$EmojiForSeqs = [\u2764 \U0001F441 \U0001F466-\U0001F469 \U0001F48B \U0001F5E8];
+$EmojiForMods = [\u261D \u26F9 \u270A-\u270D \U0001F385 \U0001F3C3-\U0001F3C4 \U0001F3C7 \U0001F3CA-\U0001F3CB \U0001F442-\U0001F443 \U0001F446-\U0001F450 \U0001F466-\U0001F469 \U0001F46E-\U0001F478 \U0001F47C \U0001F481-\U0001F483 \U0001F485-\U0001F487 \U0001F4AA \U0001F590 \U0001F595 \U0001F596 \U0001F645-\U0001F647 \U0001F64B-\U0001F64F \U0001F6A3 \U0001F6B4-\U0001F6B6 \U0001F6C0 \U0001F918];
+$EmojiMods = [\U0001F3FB-\U0001F3FF];
+
# 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
$LB8NonBreaks = [[$LB4NonBreaks] - [$ZW]];
+# Special forward rule for people & body part emoji:
+# don't break $ZWJ from subsequent $EmojiForSeqs
+$EmojiForSeqs $EmojiVar? $EmojiMods? $ZWJ $EmojiForSeqs;
+
# LB 9 Combining marks. X $CM needs to behave like X, where X is not $SP, $BK $CR $LF $NL
# $CM not covered by the above needs to behave like $AL
# See definition of $CAN_CM.
#
$HLcm ($HYcm | $BAcm) [^$CB]?;
+# LB 21b (forward) Don't break between SY and HL
+# (break between HL and SY already disallowed by LB 13 above)
+$SYcm $HLcm;
+
# LB 22
($ALcm | $HLcm) $INcm;
$CM+ $INcm; # by rule 10, any otherwise unattached CM behaves as AL
# LB 30a Do not break between regional indicators.
$RIcm $RIcm;
+# Special forward rule for people & body part emoji:
+# don't break between relevant emoji and $EmojiMods
+$EmojiForMods $EmojiVar? $EmojiMods;
+
#
# Reverse Rules.
#
# Requires an engine enhancement.
# / $SP* $ZW
+# Special reverse rule for people & body part emoji:
+# don't break $ZWJ from subsequent $EmojiForSeqs
+$EmojiForSeqs $ZWJ $EmojiMods? $EmojiVar? $EmojiForSeqs;
+
# LB 9,10 Combining marks.
# X $CM needs to behave like X, where X is not $SP or controls.
# $CM not covered by the above needs to behave like $AL
# LB21a
[^$CB] $CM* ($HY | $BA) $CM* $HL;
+# LB21b (reverse)
+$CM* $HL $CM* $SY;
# LB 22
$CM* $IN $CM* ($ALPlus | $HL);
# LB 30a
$CM* $RI $CM* $RI;
+# Special reverse rule for people & body part emoji:
+# don't break between relevant emoji and $EmojiMods
+$EmojiMods $EmojiVar? $EmojiForMods;
+
## -------------------------------------------------
!!safe_reverse;