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| author | Lars Ingebrigtsen <larsi@gnus.org> | 2021-12-20 10:26:25 +0100 |
|---|---|---|
| committer | Lars Ingebrigtsen <larsi@gnus.org> | 2021-12-21 05:23:11 +0100 |
| commit | 4d8af56c76ee20bc8e1ebdeef5c4100cea005974 (patch) | |
| tree | 44eddef3b7e2e7176bf69fcf9c36626f42e1f72e | |
| parent | 0c4fc7032ab32fb639c188d9647eb132d55adfa5 (diff) | |
| download | emacs-4d8af56c76ee20bc8e1ebdeef5c4100cea005974.tar.gz | |
Speed up find_field when called from outside a field
* src/editfns.c (find_field): Speed up the field functions when
called from outside a field (bug#52593). (In some cursory tests,
this makes the called-from-outside-a-field case about 3x faster.)
| -rw-r--r-- | src/editfns.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/editfns.c b/src/editfns.c index 5c9c34dc352..355a7a3e299 100644 --- a/src/editfns.c +++ b/src/editfns.c @@ -437,6 +437,27 @@ find_field (Lisp_Object pos, Lisp_Object merge_at_boundary, after_field = get_char_property_and_overlay (pos, Qfield, Qnil, NULL); + + /* We're not in a field, so find the prev/next area with a field + property. */ + if (NILP (after_field)) + { + if (beg) + { + Lisp_Object p = Fprevious_single_char_property_change (pos, Qfield, + Qnil, + beg_limit); + *beg = NILP (p) ? BEGV : XFIXNAT (p); + } + if (end) + { + Lisp_Object p = Fnext_single_char_property_change (pos, Qfield, Qnil, + end_limit); + *end = NILP (p) ? ZV : XFIXNAT (p); + } + return; + } + before_field = (XFIXNAT (pos) > BEGV ? get_char_property_and_overlay (make_fixnum (XFIXNUM (pos) - 1), |