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authorRobert Pluim <rpluim@gmail.com>2021-10-18 11:51:10 +0200
committerRobert Pluim <rpluim@gmail.com>2021-10-19 14:40:26 +0200
commit9bd2f59db608def1b588b03eff846d3fe8a7fa00 (patch)
tree39a768d3990701aef8461a40f7c595c424382766 /lisp/composite.el
parente55e2d4a110447540db6bbdb9cb1c12313b4b8ad (diff)
downloademacs-9bd2f59db608def1b588b03eff846d3fe8a7fa00.tar.gz
Handle VS-16 correctly for non-emoji codepoints
* admin/unidata/blocks.awk: Remove emoji overrides for codepoints with Emoji_Presentation = No, they're no longer necessary. * lisp/composite.el: Remove #xFE0F (VS-16) from the range handled by `compose-gstring-for-variation-glyph' so it can be handled by `font_range'. * src/composite.c (syms_of_composite): New variable `auto-composition-emoji-eligible-codepoints'. * admin/unidata/emoji-zwj.awk: Generate value for `auto-composition-emoji-eligible-codepoints'. Add `composition-function-table' entries for 'codepoint + U+FE0F' for them. * src/font.c (codepoint_is_emoji_eligible): New function to check if we should try to use the emoji font for a codepoint. (font_range): Use it.
Diffstat (limited to 'lisp/composite.el')
-rw-r--r--lisp/composite.el9
1 files changed, 8 insertions, 1 deletions
diff --git a/lisp/composite.el b/lisp/composite.el
index 859253ec7e2..99f528a0779 100644
--- a/lisp/composite.el
+++ b/lisp/composite.el
@@ -834,8 +834,15 @@ and the second is a glyph for a variation selector."
(lgstring-set-glyph gstring 1 nil)
(throw 'tag gstring)))))))
+;; We explicitly don't handle #xFE0F (VS-16) here, because that's
+;; taken care of by font_range in font.c, which will check for an
+;; emoji font for codepoints used in compositions even if they're not
+;; emoji themselves, and thus choose the Emoji presentation for them
+;; when followed by VS-16. VS-15 *is* handled here, because if it's
+;; handled in font_range, we end up choosing the Emoji presentation
+;; rather than the Text presentation.
(let ((elt '([".." 1 compose-gstring-for-variation-glyph])))
- (set-char-table-range composition-function-table '(#xFE00 . #xFE0F) elt)
+ (set-char-table-range composition-function-table '(#xFE00 . #xFE0E) elt)
(set-char-table-range composition-function-table '(#xE0100 . #xE01EF) elt))
(defun auto-compose-chars (func from to font-object string direction)