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/* $Id$ */
/***
This file is part of polypaudio.
polypaudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
polypaudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with polypaudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <assert.h>
#include "strlist.h"
#include "xmalloc.h"
#include "strbuf.h"
#include "util.h"
struct pa_strlist {
struct pa_strlist *next;
char *str;
};
struct pa_strlist* pa_strlist_prepend(struct pa_strlist *l, const char *s) {
struct pa_strlist *n;
assert(s);
n = pa_xmalloc(sizeof(struct pa_strlist));
n->str = pa_xstrdup(s);
n->next = l;
return n;
}
char *pa_strlist_tostring(struct pa_strlist *l) {
int first = 1;
struct pa_strbuf *b;
b = pa_strbuf_new();
for (; l; l = l->next) {
if (!first)
pa_strbuf_puts(b, " ");
first = 0;
pa_strbuf_puts(b, l->str);
}
return pa_strbuf_tostring_free(b);
}
struct pa_strlist* pa_strlist_remove(struct pa_strlist *l, const char *s) {
struct pa_strlist *ret = l, *prev = NULL;
assert(l && s);
while (l) {
if (!strcmp(l->str, s)) {
struct pa_strlist *n = l->next;
if (!prev) {
assert(ret == l);
ret = n;
} else
prev->next = n;
pa_xfree(l->str);
pa_xfree(l);
l = n;
} else {
prev = l;
l = l->next;
}
}
return ret;
}
void pa_strlist_free(struct pa_strlist *l) {
while (l) {
struct pa_strlist *c = l;
l = l->next;
pa_xfree(c->str);
pa_xfree(c);
}
}
struct pa_strlist* pa_strlist_pop(struct pa_strlist *l, char **s) {
struct pa_strlist *r;
assert(s);
if (!l) {
*s = NULL;
return NULL;
}
*s = l->str;
r = l->next;
pa_xfree(l);
return r;
}
struct pa_strlist* pa_strlist_parse(const char *s) {
struct pa_strlist *head = NULL, *p = NULL;
const char *state = NULL;
char *r;
while ((r = pa_split_spaces(s, &state))) {
struct pa_strlist *n;
n = pa_xmalloc(sizeof(struct pa_strlist));
n->str = r;
n->next = NULL;
if (p)
p->next = n;
else
head = n;
p = n;
}
return head;
}
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