1 /***
2 This file is part of PulseAudio.
3
4 Copyright 2004-2006 Lennart Poettering
5
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2.1 of the License,
9 or (at your option) any later version.
10
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
18 ***/
19
20 #ifdef HAVE_CONFIG_H
21 #include <config.h>
22 #endif
23
24 #include <string.h>
25 #include <stdlib.h>
26
27 #include <pulse/xmalloc.h>
28
29 #include <pulsecore/dynarray.h>
30 #include <pulsecore/macro.h>
31
32 #include "tokenizer.h"
33
parse(pa_dynarray * a,const char * s,unsigned args)34 static void parse(pa_dynarray*a, const char *s, unsigned args) {
35 int infty = 0;
36 const char delimiter[] = " \t\n\r";
37 const char *p;
38
39 pa_assert(a);
40 pa_assert(s);
41
42 if (args == 0)
43 infty = 1;
44
45 p = s+strspn(s, delimiter);
46 while (*p && (infty || args >= 2)) {
47 size_t l = strcspn(p, delimiter);
48 char *n = pa_xstrndup(p, l);
49 pa_dynarray_append(a, n);
50 p += l;
51 p += strspn(p, delimiter);
52 args--;
53 }
54
55 if (args && *p) {
56 char *n = pa_xstrdup(p);
57 pa_dynarray_append(a, n);
58 }
59 }
60
pa_tokenizer_new(const char * s,unsigned args)61 pa_tokenizer* pa_tokenizer_new(const char *s, unsigned args) {
62 pa_dynarray *a;
63
64 a = pa_dynarray_new(pa_xfree);
65 parse(a, s, args);
66 return (pa_tokenizer*) a;
67 }
68
pa_tokenizer_free(pa_tokenizer * t)69 void pa_tokenizer_free(pa_tokenizer *t) {
70 pa_dynarray *a = (pa_dynarray*) t;
71
72 pa_assert(a);
73 pa_dynarray_free(a);
74 }
75
pa_tokenizer_get(pa_tokenizer * t,unsigned i)76 const char *pa_tokenizer_get(pa_tokenizer *t, unsigned i) {
77 pa_dynarray *a = (pa_dynarray*) t;
78
79 pa_assert(a);
80
81 return pa_dynarray_get(a, i);
82 }
83