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| author | Eli Zaretskii <eliz@gnu.org> | 2016-11-16 18:11:33 +0200 |
|---|---|---|
| committer | Eli Zaretskii <eliz@gnu.org> | 2016-11-16 18:11:33 +0200 |
| commit | e992ac0a639d01df8f04c18061b0d73f792ff2c2 (patch) | |
| tree | cc3400264f59511bf86b1d762bf57acfb2104c81 | |
| parent | 1fc101b0c4009e664c102b896e8d510f4821e754 (diff) | |
| download | emacs-e992ac0a639d01df8f04c18061b0d73f792ff2c2.tar.gz | |
Fix sluggish display of symbols in UTF-8 language environment
* lisp/international/fontset.el (setup-default-fontset): Make sure
Symbola and FreeMono are set up in the default fontset as belonging
to the "iso10646-1" registry. In the UTF-8 locale, this avoids a
long and futile search for a suitable font, whose side effect is a
lot of consing, which then hits the font-cache compacting issue,
and causes very sluggish redisplay of characters displayed by
these fonts. All this happens because the default for the
registry is "iso8859-1". (Bug#24953)
| -rw-r--r-- | lisp/international/fontset.el | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lisp/international/fontset.el b/lisp/international/fontset.el index 612c0a08ad7..659f03a2a67 100644 --- a/lisp/international/fontset.el +++ b/lisp/international/fontset.el @@ -812,10 +812,11 @@ (#x1F700 . #x1F77F) ;; Alchemical Symbols (#x1F780 . #x1F7FF) ;; Geometric Shapes Extended (#x1F800 . #x1F8FF))) ;; Supplemental Arrows-C - (set-fontset-font "fontset-default" symbol-subgroup "Symbola" nil 'prepend)) + (set-fontset-font "fontset-default" symbol-subgroup + '("Symbola" . "iso10646-1") nil 'prepend)) ;; Box Drawing and Block Elements (set-fontset-font "fontset-default" '(#x2500 . #x259F) - "FreeMono" nil 'prepend) + '("FreeMono" . "iso10646-1") nil 'prepend) ;; Since standard-fontset-spec on X uses fixed-medium font, which ;; gets mapped to a iso8859-1 variant, we would like to prefer its |