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360cb6550e
The PA_DYNARRAY_FOREACH macro requires that pa_dynarray_get() returns NULL if the index is out of bounds.
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <string.h>
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#include <stdlib.h>
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#include <pulse/xmalloc.h>
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#include <pulsecore/dynarray.h>
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#include <pulsecore/macro.h>
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#include "tokenizer.h"
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static void parse(pa_dynarray*a, const char *s, unsigned args) {
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int infty = 0;
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const char delimiter[] = " \t\n\r";
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const char *p;
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pa_assert(a);
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pa_assert(s);
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if (args == 0)
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infty = 1;
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p = s+strspn(s, delimiter);
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while (*p && (infty || args >= 2)) {
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size_t l = strcspn(p, delimiter);
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char *n = pa_xstrndup(p, l);
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pa_dynarray_append(a, n);
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p += l;
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p += strspn(p, delimiter);
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args--;
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}
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if (args && *p) {
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char *n = pa_xstrdup(p);
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pa_dynarray_append(a, n);
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}
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}
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pa_tokenizer* pa_tokenizer_new(const char *s, unsigned args) {
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pa_dynarray *a;
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a = pa_dynarray_new(pa_xfree);
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parse(a, s, args);
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return (pa_tokenizer*) a;
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}
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void pa_tokenizer_free(pa_tokenizer *t) {
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pa_dynarray *a = (pa_dynarray*) t;
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pa_assert(a);
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pa_dynarray_free(a);
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}
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const char *pa_tokenizer_get(pa_tokenizer *t, unsigned i) {
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pa_dynarray *a = (pa_dynarray*) t;
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pa_assert(a);
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return pa_dynarray_get(a, i);
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}
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