av_get_token()

based on a patch by Stefano Sabatini

Originally committed as revision 18725 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavfilter/parseutils.h

@@ -0,0 +1,43 @@
+/*
+ * copyright (c) 2009 Stefano Sabatini
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file libavfilter/parseutils.h
+ * parsing utils
+ */
+
+#ifndef AVFILTER_PARSEUTILS_H
+#define AVFILTER_PARSEUTILS_H
+
+/**
+ * Unescapes the given string until a non escaped terminating char,
+ * and returns the token corresponding to the unescaped string.
+ *
+ * The normal \ and ' escaping is supported. Leading and trailing
+ * whitespaces are removed.
+ *
+ * @param term a 0-terminated list of terminating chars
+ * @param buf the buffer to parse, buf will be updated to point to the
+ * terminating char
+ * @return the malloced unescaped string, which must be av_freed by
+ * the user
+ */
+char *av_get_token(const char **buf, const char *term);
+
+#endif  /* AVFILTER_PARSEUTILS_H */