really create glitch-free branch

git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/glitch-free@2120 fefdeb5f-60dc-0310-8127-8f9354f1896f

1 files changed, 90 insertions, 0 deletions

diff --git a/src/pulsecore/tokenizer.c b/src/pulsecore/tokenizer.c
new file mode 100644
index 00000000..f79c19c5
--- /dev/null
+++ b/src/pulsecore/tokenizer.c
@@ -0,0 +1,90 @@
+/* $Id$ */
+
+/***
+  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);
+}