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| author | Eli Zaretskii <eliz@gnu.org> | 2020-10-31 12:40:25 +0200 |
|---|---|---|
| committer | Eli Zaretskii <eliz@gnu.org> | 2020-10-31 12:40:25 +0200 |
| commit | 66ceb148c7d90be71ead193306a4aa2d1f55674c (patch) | |
| tree | 87c63c54f7b7f7dfde6d0c1dc819cd1075e506e2 | |
| parent | dc16c70bada4c8520b8363d3df154dd6dd389ef9 (diff) | |
| download | emacs-66ceb148c7d90be71ead193306a4aa2d1f55674c.tar.gz | |
Support prettified display of fractional numbers
* lisp/composite.el (composition-function-table): Define an entry
for U+2044 FRACTION SLASH, for prettier display of fractional
numbers.
| -rw-r--r-- | lisp/composite.el | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/lisp/composite.el b/lisp/composite.el index 47d91c5d212..0a8dcb875c9 100644 --- a/lisp/composite.el +++ b/lisp/composite.el @@ -747,7 +747,18 @@ All non-spacing characters have this function in unicode-category-table)) ;; for dotted-circle (aset composition-function-table #x25CC - `([,(purecopy ".\\c^") 0 compose-gstring-for-dotted-circle]))) + `([,(purecopy ".\\c^") 0 compose-gstring-for-dotted-circle])) + ;; For prettier display of fractions + (set-char-table-range + composition-function-table + #x2044 + ;; We use font-shape-gstring so that if the font doesn't support + ;; fractional display, the characters are shown separately, not as + ;; a composed cluster. + (list (vector (purecopy "[1-9][0-9][0-9]\u2044[0-9]+") + 3 'font-shape-gstring) + (vector (purecopy "[1-9][0-9]\u2044[0-9]+") 2 'font-shape-gstring) + (vector (purecopy "[1-9]\u2044[0-9]+") 1 'font-shape-gstring)))) (defun compose-gstring-for-terminal (gstring _direction) "Compose glyph-string GSTRING for terminal display. |