-# Copyright (c) 2002-2011 International Business Machines Corporation and
+# Copyright (c) 2002-2015 International Business Machines Corporation and
# others. All Rights Reserved.
#
# file: line_fi.txt
#
# Line Breaking Rules
# Implement default line breaking as defined by
-# Unicode Standard Annex #14 Revision 28 for Unicode 6.1
+# Unicode Standard Annex #14 Revision 29 for Unicode 6.2
# http://www.unicode.org/reports/tr14/
+# tailored as noted in 2nd paragraph below..
#
# TODO: Rule LB 8 remains as it was in Unicode 5.2
# This is only because of a limitation of ICU break engine implementation,
# not because the older behavior is desirable.
+#
+# This tailors the line break behavior for Finnish, while otherwise behaving
+# per UAX 14 which corresponds to CSS line-break=strict (BCP47 -u-lb-strict).
+# It sets characters of class CJ to behave like NS.
#
# Character Classes defined by TR 14.
$PO = [:LineBreak = Postfix_Numeric:];
$PR = [:LineBreak = Prefix_Numeric:];
$QU = [:LineBreak = Quotation:];
+$RI = [:LineBreak = Regional_Indicator:];
$SA = [:LineBreak = Complex_Context:];
$SG = [:LineBreak = Surrogate:];
$SP = [:LineBreak = Space:];
$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
$POcm = $PO $CM*;
$PRcm = $PR $CM*;
$QUcm = $QU $CM*;
+$RIcm = $RI $CM*;
$SYcm = $SY $CM*;
$WJcm = $WJ $CM*;
$PO $CM+;
$PR $CM+;
$QU $CM+;
+$RI $CM+;
$SY $CM+;
$WJ $CM+;
$LB8NonBreaks = [[$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 | $HHcm) [^$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
$CM+ $OPcm; # The $CM+ is from rule 10, an unattached CM is treated as AL.
$CPcm ($ALcm | $HLcm | $NUcm);
+# LB 30a Do not break between regional indicators.
+$RIcm $RIcm;
+
+# Special forward rule for people & body part emoji:
+# don't break between relevant emoji and $EmojiMods
+$EmojiForMods $EmojiVar? $EmojiMods;
#
# Reverse Rules.
$CM+ $PO;
$CM+ $PR;
$CM+ $QU;
+$CM+ $RI;
$CM+ $SY;
$CM+ $WJ;
$CM+;
# 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 | $HH) $CM* $HL;
+# LB21b (reverse)
+$CM* $HL $CM* $SY;
# LB 22
$CM* $IN $CM* ($ALPlus | $HL);
$CM* $OP $CM* ($ALPlus | $HL | $NU);
$CM* ($ALPlus | $HL | $NU) $CM* $CP;
+# LB 30a
+$CM* $RI $CM* $RI;
+
+# Special reverse rule for people & body part emoji:
+# don't break between relevant emoji and $EmojiMods
+$EmojiMods $EmojiVar? $EmojiForMods;
## -------------------------------------------------