44d7c8bf37
font-utils.el disable its cache on X and Windows so every check for the existence of a font recomputes the font list, which takes a non-negligible amount of time, at least on X. This default is reasonable as stated in the docstring of font-utils-use-memory-cache: > Disabled on X11 and MS Windows by default, because font-family-list > often gives truncated results before Emacs is fully initialized. This is, however, unreasonable from unicode-fonts, where calls to check the existence of fonts happens in a loop; during the loop, Emacs is not going to suddenly become fully initialized, , so each call is actually recomputing the same font list over and over again. Enabling the font-utils memory cache, at least for the duration of unicode-fonts-setup, thus drastically reduces the initial startup time, or the startup time when the pcache store is reset for some reason. |
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:ui unicode
Description unfold
This module extends Doom's ability to display non-English unicode. It is primarily useful for non-English Emacs users, for whom Doom's built-in unicode support in insufficient.
This module relies on the unicode-fonts package. It tries to setup the default emacs fontset to cover as many unicode glyphs as possible by scanning all available glyphs from all available fonts.
When this module is enabled:
- Emacs will prefer to use the
doom-symbol-fontfont to display non-latin glyphs if it provides coverage for them. - The first time you run Emacs a unicode cache will be generated – this will take a while!
- The cache will be regenerated every time Emacs is made aware of new fonts or
you change the font configuration e.g. by modifying
doom-symbol-font. - The cache will be stored and should not be regenerated unless font-related configuration or the versions of relevant packages changes.
Maintainers
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Module flags
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Packages
Hacks
No hacks documented for this module.
TODO Changelog
This module does not have a changelog yet.
Installation
Enable this module in your doom! block.
This module has no external requirements.
TODO Usage
This module has no usage documentation yet. Write some?
TODO Configuration
This module's configuration documentation is incomplete. Complete it?
The first font that will be analyzed to see if it contains the glyphs of
non-latin characters will be doom-symbol-font:
;; in $DOOMDIR/config.el
(setq doom-symbol-font (font-spec :family "JuliaMono"))
If your doom-font provides good unicode coverage use:
;; in $DOOMDIR/config.el
(setq doom-symbol-font doom-font)If your font does not provide some glyphs, this package will try its best to find another font that does.
Getting fonts with good coverage
A list of fonts with good unicode coverage can be found on the page of the unicode-fonts package.
Advanced configuration
Consult the unicode-fonts package documentation for a description of more
advanced configuration. The configuration should be placed, as usual, in
$DOOMDIR/config.el wrapped in an (after! unicode-fonts) block. The variable
unicode-fonts-blocks contains a list of all unicode block names and their
character ranges. The default fonts to search for glyphs are in the variable
unicode-fonts-block-font-mapping.
If you want to use the font Symbola for Miscellaneous Symbols by default
use:
;; in $DOOMDIR/config.el
(after! unicode-fonts
(push "Symbola" (cadr (assoc "Miscellaneous Symbols" unicode-fonts-block-font-mapping))))If you want to redefine several blocks an efficient way would be:
(after! unicode-fonts
(dolist (unicode-block '("Mathematical Alphanumeric Symbols"
"Mathematical Operators"
"Miscellaneous Mathematical Symbols-A"
"Miscellaneous Mathematical Symbols-B"
"Miscellaneous Symbols"
"Miscellaneous Symbols and Arrows"
"Miscellaneous Symbols and Pictographs"))
(push "DejaVu Math TeX Gyre" (cadr (assoc unicode-block unicode-fonts-block-font-mapping)))))
You can find a list of fonts available to emacs using M-x counsel-fonts.
Troubleshooting
TODO Emacs daemon mode (#3328)
This module may fail to setup fonts when emacs is run in a daemon session.
Common error: void-variable \.\.\. (#7164)
Users for this module may see the error similar to:
Debugger entered--Lisp error: (void-variable \.\.\.)
(progn (set-fontset-font "fontset-default" '(64256 . 64335) (font-spec :name "Arial Unicode MS:" :registry "iso10646-1")) (set-fontset-font "fontset-default" '(65856 . 65935) (font-spec :name "Apple Symbols:" :registry "iso10646-1")) (set-fontset-font "fontset-default" '(1536 . 1791) (font-spec :name "Courier New:" :registry "iso10646-1")) (set-fontset-font "fontset-default" '(1536 . 1791) (font-spec :name "Geeza Pro:" :registry "iso10646-1") nil 'append) (set-fontset-font "fontset-default" '(1536 . 1791) (font-spec :name "Baghdad:" :registry "iso10646-1") nil 'append) (set-fontset-font "fontset-default" '(1536 . 1791) (font-spec :name "Damascus:" :registry "iso10646-1") nil 'append) (set-fontset-font "fontset-default" '(1536 . 1791) (font-spec :name "Al Bayan:" :registry "iso10646-1") nil 'append) (set-fontset-font "fontset-default" '(1536 . 1791) (font-spec :name "Arial Unicode MS:" :registry "iso10646-1") nil 'append) (set-fontset-font "fontset-default" '(1536 . 1791) (font-spec :name "Nadeem:" :registry "iso10646-1") nil 'append) \.\.\.)
eval((progn (set-fontset-font "fontset-default" '(64256 . 64335) (font-spec :name "Arial Unicode MS:" :registry "iso10646-1")) (set-fontset-font "fontset-default" '(65856 . 65935) (font-spec :name "Apple Symbols:" :registry "iso10646-1")) (set-fontset-font "fontset-default" '(1536 . 1791) (font-spec :name "Courier New:" :registry "iso10646-1")) (set-fontset-font "fontset-default" '(1536 . 1791) (font-spec :name "Geeza Pro:" :registry "iso10646-1") nil 'append) (set-fontset-font "fontset-default" '(1536 . 1791) (font-spec :name "Baghdad:" :registry "iso10646-1") nil 'append) (set-fontset-font "fontset-default" '(1536 . 1791) (font-spec :name "Damascus:" :registry "iso10646-1") nil 'append) (set-fontset-font "fontset-default" '(1536 . 1791) (font-spec :name "Al Bayan:" :registry "iso10646-1") nil 'append) (set-fontset-font "fontset-default" '(1536 . 1791) (font-spec :name "Arial Unicode MS:" :registry "iso10646-1") nil 'append) (set-fontset-font "fontset-default" '(1536 . 1791) (font-spec :name "Nadeem:" :registry "iso10646-1") nil 'append) \.\.\.))
unicode-fonts--setup-1("fontset-default" nil)
unicode-fonts-setup()This is a known issue with an unidentified cause. See rolandwalker/unicode-fonts#36. A workaround is to delete your unicode-fonts cache and restart Emacs:
# $EMACSDIR == where you cloned Doom Emacs
rm -f $EMACSDIR/.local/cache/pcache/unicode-fontsFrequently asked questions
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TODO Appendix
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