1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/* $Id$ */
/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
PulseAudio 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.
PulseAudio 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 PulseAudio; 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 <stdlib.h>
#include <pulse/xmalloc.h>
#include <pulsecore/dynarray.h>
#include <pulsecore/gccmacro.h>
#include <pulsecore/macro.h>
#include "tokenizer.h"
static void token_free(void *p, PA_GCC_UNUSED void *userdata) {
pa_xfree(p);
}
static void parse(pa_dynarray*a, const char *s, unsigned args) {
int infty = 0;
const char delimiter[] = " \t\n\r";
const char *p;
pa_assert(a);
pa_assert(s);
if (args == 0)
infty = 1;
p = s+strspn(s, delimiter);
while (*p && (infty || args >= 2)) {
size_t l = strcspn(p, delimiter);
char *n = pa_xstrndup(p, l);
pa_dynarray_append(a, n);
p += l;
p += strspn(p, delimiter);
args--;
}
if (args && *p) {
char *n = pa_xstrdup(p);
pa_dynarray_append(a, n);
}
}
pa_tokenizer* pa_tokenizer_new(const char *s, unsigned args) {
pa_dynarray *a;
a = pa_dynarray_new();
parse(a, s, args);
return (pa_tokenizer*) a;
}
void pa_tokenizer_free(pa_tokenizer *t) {
pa_dynarray *a = (pa_dynarray*) t;
pa_assert(a);
pa_dynarray_free(a, token_free, NULL);
}
const char *pa_tokenizer_get(pa_tokenizer *t, unsigned i) {
pa_dynarray *a = (pa_dynarray*) t;
pa_assert(a);
return pa_dynarray_get(a, i);
}
|
