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strbuf.c: added strbuf_explode

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This commit is contained in:
Henrik Hautakoski 2010-11-28 10:18:41 +01:00
parent ce520fc35b
commit b6ab5c88a8
3 changed files with 63 additions and 0 deletions
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37
src/strbuf.c
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@ -71,6 +71,18 @@ void strbuf_free(strbuf_t *s) {
strbuf_init(s);
}
void strbuf_free_list(strbuf_t **s) {
strbuf_t **list = s;
while(*s) {
if ((*s)->alloc_size)
xfree((*s)->buf);
xfree(*s++);
}
xfree(list);
}
void strbuf_attach(strbuf_t *s, void *buf, size_t len, size_t alloc_size) {
strbuf_free(s);
@ -184,3 +196,28 @@ void strbuf_squeeze(strbuf_t *s, char ch) {
}
}
}
strbuf_t** strbuf_explode(const strbuf_t *s, char sep) {
int i = 0, count = 2;
char *p;
strbuf_t *tmp, **list;
list = xmallocz(sizeof(strbuf_t *) * count);
p = s->buf;
while(p < s->buf + s->len) {
char *d = memchr(p, sep, s->len - (p - s->buf));
if (!d)
d = s->buf + s->len;
if (i + 1 >= count)
list = xrealloc(list, sizeof(strbuf_t *) * (count += 4));
tmp = xmalloc(sizeof(strbuf_t));
strbuf_init(tmp);
strbuf_append(tmp, p, d - p);
list[i] = tmp;
list[++i] = NULL;
p = ++d;
}
return list;
}