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Starting to look for a multibyte character not at the start of the string, 

but only as far back as such a character can possibly be.
Speedup suggested by Mark Majeres.


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@5147 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
master
Benno Schulenberg 2015-03-22 11:20:02 +00:00
parent cb776fad88
commit 76e7aaf514
2 changed files with 13 additions and 2 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2015-03-22 Benno Schulenberg <bensberg@justemail.net>
* src/chars.c (move_mbleft): Start looking for a multibyte char
not at the start of the string, but only as far back as such a
char can possibly be. Change suggested by Mark Majeres.
2015-03-21 Benno Schulenberg <bensberg@justemail.net>
* src/text.c (do_alt_speller): Remove some leftovers.
* src/search.c: Place some comments better and unwrap some lines.

10
src/chars.c
View File

@ -484,12 +484,18 @@ int parse_mbchar(const char *buf, char *chr, size_t *col)
* before the one at pos. */
size_t move_mbleft(const char *buf, size_t pos)
{
size_t before = 0, char_len = 0;
size_t before, char_len = 0;
assert(buf != NULL && pos <= strlen(buf));
/* There is no library function to move backward one multibyte
* character. Here is the naive, O(pos) way to do it. */
* character. So we just start groping for one at the farthest
* possible point. */
if (mb_cur_max() > pos)
before = 0;
else
before = pos - mb_cur_max();
while (before < pos) {
char_len = parse_mbchar(buf + before, NULL, NULL);
before += char_len;