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authorRobert Pluim <rpluim@gmail.com>2021-09-23 11:31:46 +0200
committerRobert Pluim <rpluim@gmail.com>2021-09-24 13:10:48 +0200
commit6738111ae2baa45f1eb53e0d208f49855af128d6 (patch)
treebe389d1dc388f832264bda49a5d8c265e325add8 /admin
parent184469df13ed6e2b6b9e17cd41a31db9e3dd2dc2 (diff)
downloademacs-6738111ae2baa45f1eb53e0d208f49855af128d6.tar.gz
Generate skin tone compositions from emoji-sequences.txt
Read skin tone modifier sequences from emoji-sequences.txt and add them to the per-character composition rules derived from emoji-zwj-sequences.txt, rather than adding them as lookback rules for the skin tone modifiers. This avoids an issue with the application of such lookback rules. See Bug#39799, specifically <https://lists.gnu.org/archive/html/bug-gnu-emacs/2021-09/msg01878.html> for more details. * admin/unidata/Makefile.in (zwj): Add emoji-sequences.txt as a dependency. * admin/unidata/emoji-zwj.awk: Match RGI_Emoji_ZWJ_Sequence and RGI_Emoji_Modifier_Sequence. Remove manual addition of skin tone composition rules with lookback.
Diffstat (limited to 'admin')
-rw-r--r--admin/unidata/Makefile.in4
-rw-r--r--admin/unidata/emoji-zwj.awk14
2 files changed, 5 insertions, 13 deletions
diff --git a/admin/unidata/Makefile.in b/admin/unidata/Makefile.in
index a2a2e425ffb..a953044a115 100644
--- a/admin/unidata/Makefile.in
+++ b/admin/unidata/Makefile.in
@@ -91,8 +91,8 @@ emoji-zwj.el: ${unidir}/emoji-zwj.el
zwj = ${srcdir}/emoji-zwj.awk
-${unidir}/emoji-zwj.el: ${srcdir}/emoji-zwj-sequences.txt ${zwj}
- $(AM_V_GEN)$(AWK) -f ${zwj} < $< > $@
+${unidir}/emoji-zwj.el: ${srcdir}/emoji-zwj-sequences.txt $(srcdir)/emoji-sequences.txt ${zwj}
+ $(AM_V_GEN)$(AWK) -f ${zwj} $^ > $@
.PHONY: clean bootstrap-clean distclean maintainer-clean gen-clean
diff --git a/admin/unidata/emoji-zwj.awk b/admin/unidata/emoji-zwj.awk
index bdc50f5047a..5aca157cbd4 100644
--- a/admin/unidata/emoji-zwj.awk
+++ b/admin/unidata/emoji-zwj.awk
@@ -39,7 +39,7 @@
### Code:
-/^[0-9A-F]/ {
+/^[0-9A-F].*; RGI_Emoji_(ZWJ|Modifier)_Sequence/ {
sub(/ *;.*/, "", $0)
num = split($0, elts)
if (ch[elts[1]] == "")
@@ -62,7 +62,7 @@
END {
print ";;; emoji-zwj.el --- emoji zwj character composition table -*- lexical-binding:t -*-"
- print ";;; Automatically generated from admin/unidata/emoji-zwj-sequences.txt"
+ print ";;; Automatically generated from admin/unidata/emoji-{zwj-,}sequences.txt"
print "(eval-when-compile (require 'regexp-opt))"
print "(dolist (elt `("
@@ -78,7 +78,7 @@ END {
print " 0"
print " 'compose-gstring-for-graphic)))))"
- print ";; The following three blocks are derived by hand from emoji-sequences.txt"
+ print ";; The following two blocks are derived by hand from emoji-sequences.txt"
print ";; FIXME: add support for Emoji_Keycap_Sequence once we learn how to respect FE0F/VS-16"
print ";; for ASCII characters."
@@ -98,14 +98,6 @@ END {
print " 0"
print " 'compose-gstring-for-graphic))))"
- print ";; Skin tones"
- print "(set-char-table-range composition-function-table"
- print " '(#x1F3FB . #x1F3FF)"
- print " (nconc (char-table-range composition-function-table '(#x1F3FB . #x1F3FF))"
- print " (list (vector \".[\\U0001F3FB-\\U0001F3FF]\""
- print " 1"
- print " 'compose-gstring-for-graphic))))"
-
print "\n"
print "(provide 'emoji-zwj)"
}