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| author | Eli Zaretskii <eliz@gnu.org> | 2021-04-14 11:47:55 +0300 |
|---|---|---|
| committer | Eli Zaretskii <eliz@gnu.org> | 2021-04-14 11:47:55 +0300 |
| commit | d1559ede54684513b79025ade2b4677447c7a487 (patch) | |
| tree | 5bbb4c12e05a3ea4f260d204f3f8e9b854d5a22d /src/character.h | |
| parent | 844b8949a71f180d395a237c768b22d91cf91ded (diff) | |
| download | emacs-d1559ede54684513b79025ade2b4677447c7a487.tar.gz | |
Add two optional arguments to 'string-width'
* src/character.c (Fstring_width, lisp_string_width): Accept two
optional arguments FROM and TO, to indicate the substring to be
considered.
(Fstring_width): Add caveats in the doc string about display
features ignored by the function. (Bug#47712)
* src/character.h (lisp_string_width): Update prototype.
* src/editfns.c (styled_format): Adjust call of lisp_string_width
to its changed signature.
* test/src/character-tests.el (character-test-string-width): New
file with tests for 'string-width'.
* doc/lispref/display.texi (Size of Displayed Text): Document
caveats of using 'string-width'.
* etc/NEWS: Announce the change.
Diffstat (limited to 'src/character.h')
| -rw-r--r-- | src/character.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/character.h b/src/character.h index cbf43097ae2..d19e1e2604c 100644 --- a/src/character.h +++ b/src/character.h @@ -572,8 +572,8 @@ extern ptrdiff_t str_to_unibyte (const unsigned char *, unsigned char *, extern ptrdiff_t strwidth (const char *, ptrdiff_t); extern ptrdiff_t c_string_width (const unsigned char *, ptrdiff_t, int, ptrdiff_t *, ptrdiff_t *); -extern ptrdiff_t lisp_string_width (Lisp_Object, ptrdiff_t, - ptrdiff_t *, ptrdiff_t *); +extern ptrdiff_t lisp_string_width (Lisp_Object, ptrdiff_t, ptrdiff_t, + ptrdiff_t, ptrdiff_t *, ptrdiff_t *); extern Lisp_Object Vchar_unify_table; extern Lisp_Object string_escape_byte8 (Lisp_Object); |