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Whoops, need this for the previous reverse trim commit too.

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This commit is contained in:
nicm 2016-01-31 09:57:41 +00:00
parent 49e9f93738
commit fa64b89ad7
2 changed files with 38 additions and 0 deletions
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1
tmux.h
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@ -2324,6 +2324,7 @@ char *utf8_sanitize(const char *);
struct utf8_data *utf8_fromcstr(const char *); struct utf8_data *utf8_fromcstr(const char *);
char *utf8_tocstr(struct utf8_data *); char *utf8_tocstr(struct utf8_data *);
u_int utf8_cstrwidth(const char *); u_int utf8_cstrwidth(const char *);
char *utf8_rtrimcstr(const char *, u_int);
char *utf8_trimcstr(const char *, u_int); char *utf8_trimcstr(const char *, u_int);
char *utf8_padcstr(const char *, u_int); char *utf8_padcstr(const char *, u_int);

37
utf8.c
View File

@ -724,6 +724,43 @@ utf8_trimcstr(const char *s, u_int width)
return (out); return (out);
} }
/* Trim UTF-8 string to width. Caller frees. */
char *
utf8_rtrimcstr(const char *s, u_int width)
{
struct utf8_data *tmp, *next, *end;
char *out;
u_int at;
tmp = utf8_fromcstr(s);
for (end = tmp; end->size != 0; end++)
/* nothing */;
if (end == tmp) {
free(tmp);
return (xstrdup(""));
}
next = end - 1;
at = 0;
for (;;)
{
if (at + next->width > width) {
next++;
break;
}
at += next->width;
if (next == tmp)
break;
next--;
}
out = utf8_tocstr(next);
free(tmp);
return (out);
}
/* Pad UTF-8 string to width. Caller frees. */ /* Pad UTF-8 string to width. Caller frees. */
char * char *
utf8_padcstr(const char *s, u_int width) utf8_padcstr(const char *s, u_int width)