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| author | Eli Zaretskii <eliz@gnu.org> | 2022-08-06 16:55:51 +0300 |
|---|---|---|
| committer | Eli Zaretskii <eliz@gnu.org> | 2022-08-06 16:55:51 +0300 |
| commit | 5aaad0445dc5a353f2da11fa7f2390d082884abe (patch) | |
| tree | 008425da799c032c708e81344b012fa18a4a83cf /lisp/language | |
| parent | 55c25e73d46685e4b4423b13b0d3287fee170386 (diff) | |
| download | emacs-5aaad0445dc5a353f2da11fa7f2390d082884abe.tar.gz | |
Speed up display of Arabic
* lisp/language/misc-lang.el (composition-function-table): Move
some of the Arabic composition rules to ZWJ and ZWNJ cells. This
speeds up display of Arabic by a factor of 2. (Bug#56682)
Diffstat (limited to 'lisp/language')
| -rw-r--r-- | lisp/language/misc-lang.el | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lisp/language/misc-lang.el b/lisp/language/misc-lang.el index 1e915c2f838..3d5b68f84be 100644 --- a/lisp/language/misc-lang.el +++ b/lisp/language/misc-lang.el @@ -137,10 +137,13 @@ thin (i.e. 1-dot width) space." (set-char-table-range composition-function-table '(#x600 . #x74F) - (list (vector "[\u200C\u200D][\u0600-\u074F\u200C\u200D]+" - 1 #'arabic-shape-gstring) - (vector "[\u0600-\u074F\u200C\u200D]+" + (list (vector "[\u0600-\u074F\u200C\u200D]+" 0 #'arabic-shape-gstring))) +(set-char-table-range + composition-function-table + '(#x200C . #x200D) + (list (vector "[\u200C\u200D][\u0600-\u074F\u200C\u200D]+" + 0 #'arabic-shape-gstring))) ;; The Egyptian Hieroglyph Format Controls were introduced in Unicode ;; Standard v12.0. Apparently, they are not yet well supported in |