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authorEli Zaretskii <eliz@gnu.org>2018-12-29 16:35:09 +0200
committerEli Zaretskii <eliz@gnu.org>2018-12-29 16:35:09 +0200
commit48776b70115edf3775df19d80f734048dadff198 (patch)
tree10a7e72a45bbbdf8dbfed4afce59fc9a5b975110 /lisp/language/ind-util.el
parent1a80b5d9b8cfa0e523b596db5d1e7e6074dbee46 (diff)
downloademacs-48776b70115edf3775df19d80f734048dadff198.tar.gz
Provide text directionality and language to HarfBuzz shaper
* lisp/language/tv-util.el (tai-viet-composition-function): * lisp/language/ethio-util.el (ethio-composition-function): * lisp/language/japanese.el (compose-gstring-for-variation-glyph): * lisp/language/thai-util.el (thai-composition-function): * lisp/language/misc-lang.el (arabic-shape-gstring): * lisp/language/lao-util.el (lao-composition-function): * lisp/language/hebrew.el (hebrew-shape-gstring): * lisp/composite.el (compose-gstring-for-graphic) (compose-gstring-for-dotted-circle, auto-compose-chars) (compose-gstring-for-terminal): Accept 2nd argument DIRECTION; all callers changed. * src/composite.c (composition_reseat_it): Call auto-composition-function with one more argument DIRECTION. (syms_of_composite) <auto-composition-function>: Update the doc string. * src/ftfont.c (ftfont_shape_by_hb): Compute language and direction, and set buffer properties accordingly. * src/composite.c (autocmp_chars): * src/w32uniscribe.c (uniscribe_shape): * src/xftfont.c (xftfont_shape): * src/ftfont.c (ftfont_shape, ftfont_shape_by_hb): * src/font.c (Ffont_shape_gstring): Accept an additional argument DIRECTION. * src/macfont.m (lgstring_direction): New enum. (mac_font_shape_1, mac_screen_font_shape, mac_font_shape): Accept an additional argument specifying text direction. All callers changed. * src/font.c (syms_of_font): New symbols QL2R and QR2L. * src/font.h (shape): Accept new argument DIRECTION. All implementations changed. (Bug#33729) (ftfont_shape): Update prototype.
Diffstat (limited to 'lisp/language/ind-util.el')
-rw-r--r--lisp/language/ind-util.el3
1 files changed, 3 insertions, 0 deletions
diff --git a/lisp/language/ind-util.el b/lisp/language/ind-util.el
index 85e99181b5c..e5eaf1cb4a4 100644
--- a/lisp/language/ind-util.el
+++ b/lisp/language/ind-util.el
@@ -829,6 +829,9 @@ Returns new end position."
(let ((pos from) newpos func (max to))
(narrow-to-region from to)
(while (< pos max)
+ ;; FIXME: The below seems to assume
+ ;; composition-function-table holds functions? That is no
+ ;; longer true, since long ago.
(setq func (aref composition-function-table (char-after pos)))
(if (fboundp func)
(setq newpos (funcall func pos nil)