diff options
Diffstat (limited to 'src/pulsecore/tokenizer.c')
-rw-r--r-- | src/pulsecore/tokenizer.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/pulsecore/tokenizer.c b/src/pulsecore/tokenizer.c new file mode 100644 index 0000000..e81dd6b --- /dev/null +++ b/src/pulsecore/tokenizer.c @@ -0,0 +1,82 @@ +/*** + 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 2.1 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, see <http://www.gnu.org/licenses/>. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <string.h> +#include <stdlib.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/dynarray.h> +#include <pulsecore/macro.h> + +#include "tokenizer.h" + +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(pa_xfree); + 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); +} + +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); +} |