gstreamer_core/gst/parse/grammar.tab.pre.c
branchRCL_3
changeset 30 7e817e7e631c
parent 0 0e761a78d257
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gstreamer_core/gst/parse/grammar.tab.pre.c	Wed Sep 01 12:16:41 2010 +0100
@@ -0,0 +1,2706 @@
+#ifdef HAVE_CONFIG_H
+#ifndef __SYMBIAN32__
+#include "config.h"
+#else
+#include "config.h"
+#endif
+#endif
+/* A Bison parser, made by GNU Bison 2.3.  */
+
+/* Skeleton implementation for Bison's Yacc-like parsers in C
+
+   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+   Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program 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 General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
+
+/* As a special exception, you may create a larger work that contains
+   part or all of the Bison parser skeleton and distribute that work
+   under terms of your choice, so long as that work isn't itself a
+   parser generator using the skeleton or a modified version thereof
+   as a parser skeleton.  Alternatively, if you modify or redistribute
+   the parser skeleton itself, you may (at your option) remove this
+   special exception, which will cause the skeleton and the resulting
+   Bison output files to be licensed under the GNU General Public
+   License without this special exception.
+
+   This special exception was added by the Free Software Foundation in
+   version 2.2 of Bison.  */
+
+/* C LALR(1) parser skeleton written by Richard Stallman, by
+   simplifying the original so-called "semantic" parser.  */
+
+/* All symbols defined below should begin with yy or YY, to avoid
+   infringing on user name space.  This should be done even for local
+   variables, as they might otherwise be expanded by user macros.
+   There are some unavoidable exceptions within include files to
+   define necessary library symbols; they are noted "INFRINGES ON
+   USER NAME SPACE" below.  */
+
+/* Identify Bison output.  */
+#define YYBISON 1
+
+/* Bison version.  */
+#define YYBISON_VERSION "2.3"
+
+/* Skeleton name.  */
+#define YYSKELETON_NAME "yacc.c"
+
+/* Pure parsers.  */
+#define YYPURE 1
+
+/* Using locations.  */
+#define YYLSP_NEEDED 0
+
+/* Substitute the variable and function names.  */
+#define yyparse _gst_parse_yyparse
+#define yylex   _gst_parse_yylex
+#define yyerror _gst_parse_yyerror
+#define yylval  _gst_parse_yylval
+#define yychar  _gst_parse_yychar
+#define yydebug _gst_parse_yydebug
+#define yynerrs _gst_parse_yynerrs
+
+
+/* Tokens.  */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+   /* Put the tokens into the symbol table, so that GDB and other debuggers
+      know about them.  */
+enum yytokentype
+{
+  PARSE_URL = 258,
+  IDENTIFIER = 259,
+  BINREF = 260,
+  PADREF = 261,
+  REF = 262,
+  ASSIGNMENT = 263,
+  LINK = 264
+};
+#endif
+/* Tokens.  */
+#define PARSE_URL 258
+#define IDENTIFIER 259
+#define BINREF 260
+#define PADREF 261
+#define REF 262
+#define ASSIGNMENT 263
+#define LINK 264
+
+
+
+
+/* Copy the first part of user declarations.  */
+#line 1 "./grammar.y"
+
+#include <glib-object.h>
+#include <glib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "../gst_private.h"
+#include "../gst-i18n-lib.h"
+
+#include "../gstconfig.h"
+#include "../gstparse.h"
+#include "../gstinfo.h"
+#include "../gsterror.h"
+#include "../gsturi.h"
+#include "../gstutils.h"
+#include "../gstvalue.h"
+#include "../gstchildproxy.h"
+#include "types.h"
+
+/* All error messages in this file are user-visible and need to be translated.
+ * Don't start the message with a capital, and don't end them with a period,
+ * as they will be presented inside a sentence/error.
+ */
+#ifdef __SYMBIAN32__
+#include <glib_global.h>
+#endif
+#define YYERROR_VERBOSE 1
+#define YYLEX_PARAM scanner
+
+typedef void *yyscan_t;
+
+int _gst_parse_yylex (void *yylval_param, yyscan_t yyscanner);
+int _gst_parse_yylex_init (yyscan_t scanner);
+int _gst_parse_yylex_destroy (yyscan_t scanner);
+struct yy_buffer_state *_gst_parse_yy_scan_string (char *, yyscan_t);
+void _gst_parse_yypush_buffer_state (void *new_buffer, yyscan_t yyscanner);
+void _gst_parse_yypop_buffer_state (yyscan_t yyscanner);
+
+
+#ifdef __GST_PARSE_TRACE
+static guint __strings;
+static guint __links;
+static guint __chains;
+gchar *
+__gst_parse_strdup (gchar * org)
+{
+  gchar *ret;
+
+  __strings++;
+  ret = g_strdup (org);
+  /* g_print ("ALLOCATED STR   (%3u): %p %s\n", __strings, ret, ret); */
+  return ret;
+}
+
+void
+__gst_parse_strfree (gchar * str)
+{
+  if (str) {
+    /* g_print ("FREEING STR     (%3u): %p %s\n", __strings - 1, str, str); */
+    g_free (str);
+    g_return_if_fail (__strings > 0);
+    __strings--;
+  }
+}
+link_t *
+__gst_parse_link_new ()
+{
+  link_t *ret;
+
+  __links++;
+  ret = g_new0 (link_t, 1);
+  /* g_print ("ALLOCATED LINK  (%3u): %p\n", __links, ret); */
+  return ret;
+}
+
+void
+__gst_parse_link_free (link_t * data)
+{
+  if (data) {
+    /* g_print ("FREEING LINK    (%3u): %p\n", __links - 1, data); */
+    g_free (data);
+    g_return_if_fail (__links > 0);
+    __links--;
+  }
+}
+chain_t *
+__gst_parse_chain_new ()
+{
+  chain_t *ret;
+
+  __chains++;
+  ret = g_new0 (chain_t, 1);
+  /* g_print ("ALLOCATED CHAIN (%3u): %p\n", __chains, ret); */
+  return ret;
+}
+
+void
+__gst_parse_chain_free (chain_t * data)
+{
+  /* g_print ("FREEING CHAIN   (%3u): %p\n", __chains - 1, data); */
+  g_free (data);
+  g_return_if_fail (__chains > 0);
+  __chains--;
+}
+
+#endif /* __GST_PARSE_TRACE */
+
+typedef struct
+{
+  gchar *src_pad;
+  gchar *sink_pad;
+  GstElement *sink;
+  GstCaps *caps;
+  gulong signal_id;
+  /* FIXME: need to connect to "disposed" signal to clean up,
+   * but there is no such signal */
+} DelayedLink;
+
+typedef struct
+{
+  GstElement *parent;
+  gchar *name;
+  gchar *value_str;
+  gulong signal_id;
+} DelayedSet;
+
+/*** define SET_ERROR and ERROR macros/functions */
+
+#ifdef G_HAVE_ISO_VARARGS
+
+#  define SET_ERROR(error, type, ...) \
+G_STMT_START { \
+  GST_CAT_ERROR (GST_CAT_PIPELINE, __VA_ARGS__); \
+  if ((error) && !*(error)) { \
+    g_set_error ((error), GST_PARSE_ERROR, (type), __VA_ARGS__); \
+  } \
+} G_STMT_END
+
+#  define ERROR(type, ...) \
+  SET_ERROR (((graph_t *) graph)->error, (type), __VA_ARGS__ )
+
+#elif defined(G_HAVE_GNUC_VARARGS)
+
+#  define SET_ERROR(error, type, args...) \
+G_STMT_START { \
+  GST_CAT_ERROR (GST_CAT_PIPELINE, args ); \
+  if ((error) && !*(error)) { \
+    g_set_error ((error), GST_PARSE_ERROR, (type), args ); \
+  } \
+} G_STMT_END
+
+#  define ERROR(type, args...) \
+  SET_ERROR (((graph_t *) graph)->error,(type) , args )
+
+#else
+
+static inline void
+SET_ERROR (GError ** error, gint type, const char *format, ...)
+{
+  if (error) {
+    if (*error) {
+      g_warning ("error while parsing");
+    } else {
+      va_list varargs;
+      char *string;
+
+      va_start (varargs, format);
+      string = g_strdup_vprintf (format, varargs);
+      va_end (varargs);
+
+      g_set_error (error, GST_PARSE_ERROR, type, string);
+
+      g_free (string);
+    }
+  }
+}
+
+#endif /* G_HAVE_ISO_VARARGS */
+
+/*** define YYPRINTF macro/function if we're debugging */
+
+/* bison 1.35 calls this macro with side effects, we need to make sure the
+   side effects work - crappy bison */
+
+#ifndef GST_DISABLE_GST_DEBUG
+#  define YYDEBUG 1
+
+#  ifdef G_HAVE_ISO_VARARGS
+
+/* #  define YYFPRINTF(a, ...) GST_CAT_DEBUG (GST_CAT_PIPELINE, __VA_ARGS__) */
+#    define YYFPRINTF(a, ...) \
+G_STMT_START { \
+     gchar *temp = g_strdup_printf (__VA_ARGS__); \
+     GST_CAT_LOG (GST_CAT_PIPELINE, temp); \
+     g_free (temp); \
+} G_STMT_END
+
+#  elif defined(G_HAVE_GNUC_VARARGS)
+
+#    define YYFPRINTF(a, args...) \
+G_STMT_START { \
+     gchar *temp = g_strdup_printf ( args ); \
+     GST_CAT_LOG (GST_CAT_PIPELINE, temp); \
+     g_free (temp); \
+} G_STMT_END
+
+#  else
+
+static inline void
+YYPRINTF (const char *format, ...)
+{
+  va_list varargs;
+  gchar *temp;
+
+  va_start (varargs, format);
+  temp = g_strdup_vprintf (format, varargs);
+  GST_CAT_LOG (GST_CAT_PIPELINE, "%s", temp);
+  g_free (temp);
+  va_end (varargs);
+}
+
+#  endif /* G_HAVE_ISO_VARARGS */
+
+#endif /* GST_DISABLE_GST_DEBUG */
+
+#define GST_BIN_MAKE(res, type, chainval, assign, free_string) \
+G_STMT_START { \
+  chain_t *chain = chainval; \
+  GSList *walk; \
+  GstBin *bin = (GstBin *) gst_element_factory_make (type, NULL); \
+  if (!chain) { \
+    SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_EMPTY_BIN, \
+        _("specified empty bin \"%s\", not allowed"), type); \
+    g_slist_foreach (assign, (GFunc) gst_parse_strfree, NULL); \
+    g_slist_free (assign); \
+    gst_object_unref (bin); \
+    if (free_string) \
+      gst_parse_strfree (type); /* Need to clean up the string */ \
+    YYERROR; \
+  } else if (!bin) { \
+    SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_NO_SUCH_ELEMENT, \
+        _("no bin \"%s\", skipping"), type); \
+    g_slist_foreach (assign, (GFunc) gst_parse_strfree, NULL); \
+    g_slist_free (assign); \
+    res = chain; \
+  } else { \
+    for (walk = chain->elements; walk; walk = walk->next ) \
+      gst_bin_add (bin, GST_ELEMENT (walk->data)); \
+    g_slist_free (chain->elements); \
+    chain->elements = g_slist_prepend (NULL, bin); \
+    res = chain; \
+    /* set the properties now */ \
+    for (walk = assign; walk; walk = walk->next) \
+      gst_parse_element_set ((gchar *) walk->data, GST_ELEMENT (bin), graph); \
+    g_slist_free (assign); \
+  } \
+} G_STMT_END
+
+#define MAKE_LINK(link, _src, _src_name, _src_pads, _sink, _sink_name, _sink_pads) \
+G_STMT_START { \
+  link = gst_parse_link_new (); \
+  link->src = _src; \
+  link->sink = _sink; \
+  link->src_name = _src_name; \
+  link->sink_name = _sink_name; \
+  link->src_pads = _src_pads; \
+  link->sink_pads = _sink_pads; \
+  link->caps = NULL; \
+} G_STMT_END
+
+#define MAKE_REF(link, _src, _pads) \
+G_STMT_START { \
+  gchar *padname = _src; \
+  GSList *pads = _pads; \
+  if (padname) { \
+    while (*padname != '.') padname++; \
+    *padname = '\0'; \
+    padname++; \
+    if (*padname != '\0') \
+      pads = g_slist_prepend (pads, gst_parse_strdup (padname)); \
+  } \
+  MAKE_LINK (link, NULL, _src, pads, NULL, NULL, NULL); \
+} G_STMT_END
+
+static void
+gst_parse_new_child (GstChildProxy * child_proxy, GObject * object,
+    gpointer data)
+{
+  DelayedSet *set = (DelayedSet *) data;
+  GParamSpec *pspec;
+  GValue v = { 0, };
+  GstObject *target = NULL;
+  GType value_type;
+
+  if (gst_child_proxy_lookup (GST_OBJECT (set->parent), set->name, &target,
+          &pspec)) {
+    value_type = G_PARAM_SPEC_VALUE_TYPE (pspec);
+
+    GST_CAT_LOG (GST_CAT_PIPELINE,
+        "parsing delayed property %s as a %s from %s", pspec->name,
+        g_type_name (value_type), set->value_str);
+    g_value_init (&v, value_type);
+    if (gst_value_deserialize (&v, set->value_str)) {
+      g_object_set_property (G_OBJECT (target), pspec->name, &v);
+    }
+    g_signal_handler_disconnect (child_proxy, set->signal_id);
+    g_free (set->name);
+    g_free (set->value_str);
+    g_free (set);
+  }
+
+  if (G_IS_VALUE (&v))
+    g_value_unset (&v);
+  if (target)
+    gst_object_unref (target);
+  return;
+}
+
+
+static void
+gst_parse_element_set (gchar * value, GstElement * element, graph_t * graph)
+{
+  GParamSpec *pspec;
+  gchar *pos = value;
+  GValue v = { 0, };
+  GstObject *target = NULL;
+  GType value_type;
+
+  /* parse the string, so the property name is null-terminated an pos points
+     to the beginning of the value */
+  while (!g_ascii_isspace (*pos) && (*pos != '='))
+    pos++;
+  if (*pos == '=') {
+    *pos = '\0';
+  } else {
+    *pos = '\0';
+    pos++;
+    while (g_ascii_isspace (*pos))
+      pos++;
+  }
+  pos++;
+  while (g_ascii_isspace (*pos))
+    pos++;
+  if (*pos == '"') {
+    pos++;
+    pos[strlen (pos) - 1] = '\0';
+  }
+  gst_parse_unescape (pos);
+
+  if (gst_child_proxy_lookup (GST_OBJECT (element), value, &target, &pspec)) {
+    value_type = G_PARAM_SPEC_VALUE_TYPE (pspec);
+    GST_CAT_LOG (GST_CAT_PIPELINE, "parsing property %s as a %s", pspec->name,
+        g_type_name (value_type));
+    g_value_init (&v, value_type);
+    if (!gst_value_deserialize (&v, pos))
+      goto error;
+    g_object_set_property (G_OBJECT (target), pspec->name, &v);
+  } else {
+    /* do a delayed set */
+    if (GST_IS_CHILD_PROXY (element)) {
+      DelayedSet *data = g_new (DelayedSet, 1);
+
+      data->parent = element;
+      data->name = g_strdup (value);
+      data->value_str = g_strdup (pos);
+      data->signal_id =
+          g_signal_connect (GST_OBJECT (element), "child-added",
+          G_CALLBACK (gst_parse_new_child), data);
+    } else {
+      SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_NO_SUCH_PROPERTY,
+          _("no property \"%s\" in element \"%s\""), value,
+          GST_ELEMENT_NAME (element));
+    }
+  }
+
+out:
+  gst_parse_strfree (value);
+  if (G_IS_VALUE (&v))
+    g_value_unset (&v);
+  if (target)
+    gst_object_unref (target);
+  return;
+
+error:
+  SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_COULD_NOT_SET_PROPERTY,
+      _("could not set property \"%s\" in element \"%s\" to \"%s\""),
+      value, GST_ELEMENT_NAME (element), pos);
+  goto out;
+}
+static inline void
+gst_parse_free_link (link_t * link)
+{
+  gst_parse_strfree (link->src_name);
+  gst_parse_strfree (link->sink_name);
+  g_slist_foreach (link->src_pads, (GFunc) gst_parse_strfree, NULL);
+  g_slist_foreach (link->sink_pads, (GFunc) gst_parse_strfree, NULL);
+  g_slist_free (link->src_pads);
+  g_slist_free (link->sink_pads);
+  if (link->caps)
+    gst_caps_unref (link->caps);
+  gst_parse_link_free (link);
+}
+
+static void
+gst_parse_found_pad (GstElement * src, GstPad * pad, gpointer data)
+{
+  DelayedLink *link = (DelayedLink *) data;
+
+  GST_CAT_INFO (GST_CAT_PIPELINE, "trying delayed linking %s:%s to %s:%s",
+      GST_STR_NULL (GST_ELEMENT_NAME (src)), GST_STR_NULL (link->src_pad),
+      GST_STR_NULL (GST_ELEMENT_NAME (link->sink)),
+      GST_STR_NULL (link->sink_pad));
+
+  if (gst_element_link_pads_filtered (src, link->src_pad, link->sink,
+          link->sink_pad, link->caps)) {
+    /* do this here, we don't want to get any problems later on when
+     * unlocking states */
+    GST_CAT_DEBUG (GST_CAT_PIPELINE, "delayed linking %s:%s to %s:%s worked",
+        GST_STR_NULL (GST_ELEMENT_NAME (src)), GST_STR_NULL (link->src_pad),
+        GST_STR_NULL (GST_ELEMENT_NAME (link->sink)),
+        GST_STR_NULL (link->sink_pad));
+    g_signal_handler_disconnect (src, link->signal_id);
+    g_free (link->src_pad);
+    g_free (link->sink_pad);
+    if (link->caps)
+      gst_caps_unref (link->caps);
+    g_free (link);
+  }
+}
+
+/* both padnames and the caps may be NULL */
+static gboolean
+gst_parse_perform_delayed_link (GstElement * src, const gchar * src_pad,
+    GstElement * sink, const gchar * sink_pad, GstCaps * caps)
+{
+  GList *templs =
+      gst_element_class_get_pad_template_list (GST_ELEMENT_GET_CLASS (src));
+
+  for (; templs; templs = templs->next) {
+    GstPadTemplate *templ = (GstPadTemplate *) templs->data;
+
+    if ((GST_PAD_TEMPLATE_DIRECTION (templ) == GST_PAD_SRC) &&
+        (GST_PAD_TEMPLATE_PRESENCE (templ) == GST_PAD_SOMETIMES)) {
+      DelayedLink *data = g_new (DelayedLink, 1);
+
+      /* TODO: maybe we should check if src_pad matches this template's names */
+
+      GST_CAT_DEBUG (GST_CAT_PIPELINE, "trying delayed link %s:%s to %s:%s",
+          GST_STR_NULL (GST_ELEMENT_NAME (src)), GST_STR_NULL (src_pad),
+          GST_STR_NULL (GST_ELEMENT_NAME (sink)), GST_STR_NULL (sink_pad));
+
+      data->src_pad = g_strdup (src_pad);
+      data->sink = sink;
+      data->sink_pad = g_strdup (sink_pad);
+      if (caps) {
+        data->caps = gst_caps_copy (caps);
+      } else {
+        data->caps = NULL;
+      }
+      data->signal_id = g_signal_connect (G_OBJECT (src), "pad-added",
+          G_CALLBACK (gst_parse_found_pad), data);
+      return TRUE;
+    }
+  }
+  return FALSE;
+}
+
+/*
+ * performs a link and frees the struct. src and sink elements must be given
+ * return values   0 - link performed
+ *                 1 - link delayed
+ *                <0 - error
+ */
+static gint
+gst_parse_perform_link (link_t * link, graph_t * graph)
+{
+  GstElement *src = link->src;
+  GstElement *sink = link->sink;
+  GSList *srcs = link->src_pads;
+  GSList *sinks = link->sink_pads;
+
+  g_assert (GST_IS_ELEMENT (src));
+  g_assert (GST_IS_ELEMENT (sink));
+
+  GST_CAT_INFO (GST_CAT_PIPELINE,
+      "linking %s:%s to %s:%s (%u/%u) with caps \"%" GST_PTR_FORMAT "\"",
+      GST_ELEMENT_NAME (src), link->src_name ? link->src_name : "(any)",
+      GST_ELEMENT_NAME (sink), link->sink_name ? link->sink_name : "(any)",
+      g_slist_length (srcs), g_slist_length (sinks), link->caps);
+
+  if (!srcs || !sinks) {
+    if (gst_element_link_pads_filtered (src,
+            srcs ? (const gchar *) srcs->data : NULL, sink,
+            sinks ? (const gchar *) sinks->data : NULL, link->caps)) {
+      goto success;
+    } else {
+      if (gst_parse_perform_delayed_link (src,
+              srcs ? (const gchar *) srcs->data : NULL,
+              sink, sinks ? (const gchar *) sinks->data : NULL, link->caps)) {
+        goto success;
+      } else {
+        goto error;
+      }
+    }
+  }
+  if (g_slist_length (link->src_pads) != g_slist_length (link->src_pads)) {
+    goto error;
+  }
+  while (srcs && sinks) {
+    const gchar *src_pad = (const gchar *) srcs->data;
+    const gchar *sink_pad = (const gchar *) sinks->data;
+
+    srcs = g_slist_next (srcs);
+    sinks = g_slist_next (sinks);
+    if (gst_element_link_pads_filtered (src, src_pad, sink, sink_pad,
+            link->caps)) {
+      continue;
+    } else {
+      if (gst_parse_perform_delayed_link (src, src_pad,
+              sink, sink_pad, link->caps)) {
+        continue;
+      } else {
+        goto error;
+      }
+    }
+  }
+
+success:
+  gst_parse_free_link (link);
+  return 0;
+
+error:
+  SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_LINK,
+      _("could not link %s to %s"), GST_ELEMENT_NAME (src),
+      GST_ELEMENT_NAME (sink));
+  gst_parse_free_link (link);
+  return -1;
+}
+
+
+static int yyerror (void *scanner, graph_t * graph, const char *s);
+
+
+/* Enabling traces.  */
+#ifndef YYDEBUG
+# define YYDEBUG 0
+#endif
+
+/* Enabling verbose error messages.  */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE 0
+#endif
+
+/* Enabling the token table.  */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE 0
+#endif
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+typedef union YYSTYPE
+#line 521 "./grammar.y"
+{
+  gchar *s;
+  chain_t *c;
+  link_t *l;
+  GstElement *e;
+  GSList *p;
+  graph_t *g;
+}
+/* Line 187 of yacc.c.  */
+#line 651 "grammar.tab.c"
+YYSTYPE;
+
+# define yystype YYSTYPE        /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+
+
+/* Copy the second part of user declarations.  */
+
+
+/* Line 216 of yacc.c.  */
+#line 664 "grammar.tab.c"
+
+#ifdef short
+# undef short
+#endif
+
+#ifdef YYTYPE_UINT8
+typedef YYTYPE_UINT8 yytype_uint8;
+#else
+typedef unsigned char yytype_uint8;
+#endif
+
+#ifdef YYTYPE_INT8
+typedef YYTYPE_INT8 yytype_int8;
+#elif (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+typedef signed char yytype_int8;
+#else
+typedef short int yytype_int8;
+#endif
+
+#ifdef YYTYPE_UINT16
+typedef YYTYPE_UINT16 yytype_uint16;
+#else
+typedef unsigned short int yytype_uint16;
+#endif
+
+#ifdef YYTYPE_INT16
+typedef YYTYPE_INT16 yytype_int16;
+#else
+typedef short int yytype_int16;
+#endif
+
+#ifndef YYSIZE_T
+# ifdef __SIZE_TYPE__
+#  define YYSIZE_T __SIZE_TYPE__
+# elif defined size_t
+#  define YYSIZE_T size_t
+# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+#  include <stddef.h>           /* INFRINGES ON USER NAME SPACE */
+#  define YYSIZE_T size_t
+# else
+#  define YYSIZE_T unsigned int
+# endif
+#endif
+
+#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
+
+#ifndef YY_
+# if YYENABLE_NLS
+#  if ENABLE_NLS
+#   include <libintl.h>         /* INFRINGES ON USER NAME SPACE */
+#   define YY_(msgid) dgettext ("bison-runtime", msgid)
+#  endif
+# endif
+# ifndef YY_
+#  define YY_(msgid) msgid
+# endif
+#endif
+
+/* Suppress unused-variable warnings by "using" E.  */
+#if ! defined lint || defined __GNUC__
+# define YYUSE(e) ((void) (e))
+#else
+# define YYUSE(e)               /* empty */
+#endif
+
+/* Identity function, used to suppress warnings about constant conditions.  */
+#ifndef lint
+# define YYID(n) (n)
+#else
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static int
+YYID (int i)
+#else
+static int
+YYID (i)
+     int i;
+#endif
+{
+  return i;
+}
+#endif
+
+#if ! defined yyoverflow || YYERROR_VERBOSE
+
+/* The parser invokes alloca or malloc; define the necessary symbols.  */
+
+# ifdef YYSTACK_USE_ALLOCA
+#  if YYSTACK_USE_ALLOCA
+#   ifdef __GNUC__
+#    define YYSTACK_ALLOC __builtin_alloca
+#   elif defined __BUILTIN_VA_ARG_INCR
+#    include <alloca.h>         /* INFRINGES ON USER NAME SPACE */
+#   elif defined _AIX
+#    define YYSTACK_ALLOC __alloca
+#   elif defined _MSC_VER
+#    include <malloc.h>         /* INFRINGES ON USER NAME SPACE */
+#    define alloca _alloca
+#   else
+#    define YYSTACK_ALLOC alloca
+#    if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+#     include <stdlib.h>        /* INFRINGES ON USER NAME SPACE */
+#     ifndef _STDLIB_H
+#      define _STDLIB_H 1
+#     endif
+#    endif
+#   endif
+#  endif
+# endif
+
+# ifdef YYSTACK_ALLOC
+   /* Pacify GCC's `empty if-body' warning.  */
+#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
+#  ifndef YYSTACK_ALLOC_MAXIMUM
+    /* The OS might guarantee only one guard page at the bottom of the stack,
+       and a page size can be as small as 4096 bytes.  So we cannot safely
+       invoke alloca (N) if N exceeds 4096.  Use a slightly smaller number
+       to allow for a few compiler-allocated temporary stack slots.  */
+#   define YYSTACK_ALLOC_MAXIMUM 4032   /* reasonable circa 2006 */
+#  endif
+# else
+#  define YYSTACK_ALLOC YYMALLOC
+#  define YYSTACK_FREE YYFREE
+#  ifndef YYSTACK_ALLOC_MAXIMUM
+#   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
+#  endif
+#  if (defined __cplusplus && ! defined _STDLIB_H \
+       && ! ((defined YYMALLOC || defined malloc) \
+	     && (defined YYFREE || defined free)))
+#   include <stdlib.h>          /* INFRINGES ON USER NAME SPACE */
+#   ifndef _STDLIB_H
+#    define _STDLIB_H 1
+#   endif
+#  endif
+#  ifndef YYMALLOC
+#   define YYMALLOC malloc
+#   if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+void *malloc (YYSIZE_T);        /* INFRINGES ON USER NAME SPACE */
+#   endif
+#  endif
+#  ifndef YYFREE
+#   define YYFREE free
+#   if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+void free (void *);             /* INFRINGES ON USER NAME SPACE */
+#   endif
+#  endif
+# endif
+#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
+
+
+#if (! defined yyoverflow \
+     && (! defined __cplusplus \
+	 || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
+
+/* A type that is properly aligned for any stack member.  */
+union yyalloc
+{
+  yytype_int16 yyss;
+  YYSTYPE yyvs;
+};
+
+/* The size of the maximum gap between one aligned stack and the next.  */
+# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
+
+/* The size of an array large to enough to hold all stacks, each with
+   N elements.  */
+# define YYSTACK_BYTES(N) \
+     ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
+      + YYSTACK_GAP_MAXIMUM)
+
+/* Copy COUNT objects from FROM to TO.  The source and destination do
+   not overlap.  */
+# ifndef YYCOPY
+#  if defined __GNUC__ && 1 < __GNUC__
+#   define YYCOPY(To, From, Count) \
+      __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
+#  else
+#   define YYCOPY(To, From, Count)		\
+      do					\
+	{					\
+	  YYSIZE_T yyi;				\
+	  for (yyi = 0; yyi < (Count); yyi++)	\
+	    (To)[yyi] = (From)[yyi];		\
+	}					\
+      while (YYID (0))
+#  endif
+# endif
+
+/* Relocate STACK from its old location to the new one.  The
+   local variables YYSIZE and YYSTACKSIZE give the old and new number of
+   elements in the stack, and YYPTR gives the new location of the
+   stack.  Advance YYPTR to a properly aligned location for the next
+   stack.  */
+# define YYSTACK_RELOCATE(Stack)					\
+    do									\
+      {									\
+	YYSIZE_T yynewbytes;						\
+	YYCOPY (&yyptr->Stack, Stack, yysize);				\
+	Stack = &yyptr->Stack;						\
+	yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
+	yyptr += yynewbytes / sizeof (*yyptr);				\
+      }									\
+    while (YYID (0))
+
+#endif
+
+/* YYFINAL -- State number of the termination state.  */
+#define YYFINAL  29
+/* YYLAST -- Last index in YYTABLE.  */
+#define YYLAST   176
+
+/* YYNTOKENS -- Number of terminals.  */
+#define YYNTOKENS  16
+/* YYNNTS -- Number of nonterminals.  */
+#define YYNNTS  12
+/* YYNRULES -- Number of rules.  */
+#define YYNRULES  32
+/* YYNRULES -- Number of states.  */
+#define YYNSTATES  43
+
+/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
+#define YYUNDEFTOK  2
+#define YYMAXUTOK   264
+
+#define YYTRANSLATE(YYX)						\
+  ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX.  */
+static const yytype_uint8 yytranslate[] = {
+  0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 14, 2, 2, 2, 2, 2, 2,
+  10, 11, 2, 2, 12, 2, 13, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 15, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
+  5, 6, 7, 8, 9
+};
+
+#if YYDEBUG
+/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+   YYRHS.  */
+static const yytype_uint8 yyprhs[] = {
+  0, 0, 3, 5, 8, 9, 12, 17, 22, 26,
+  31, 33, 36, 39, 43, 45, 48, 50, 52, 53,
+  57, 59, 62, 65, 67, 69, 72, 75, 78, 81,
+  84, 87, 88
+};
+
+/* YYRHS -- A `-1'-separated list of the rules' RHS.  */
+static const yytype_int8 yyrhs[] = {
+  27, 0, -1, 4, -1, 17, 8, -1, -1, 18,
+  8, -1, 10, 18, 26, 11, -1, 5, 18, 26,
+  11, -1, 5, 18, 11, -1, 5, 18, 1, 11,
+  -1, 6, -1, 6, 21, -1, 12, 4, -1, 12,
+  4, 21, -1, 7, -1, 7, 21, -1, 22, -1,
+  20, -1, -1, 23, 9, 23, -1, 24, -1, 24,
+  25, -1, 25, 1, -1, 17, -1, 19, -1, 26,
+  26, -1, 26, 25, -1, 26, 1, -1, 24, 26,
+  -1, 3, 26, -1, 24, 3, -1, -1, 26, -1
+};
+
+/* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
+static const yytype_uint16 yyrline[] = {
+  0, 556, 556, 564, 568, 569, 571, 572, 575, 578,
+  583, 584, 588, 589, 592, 593, 596, 597, 598, 601,
+  614, 615, 616, 619, 624, 625, 660, 688, 689, 703,
+  723, 748, 751
+};
+#endif
+
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+   First, the terminals, then, starting at YYNTOKENS, nonterminals.  */
+static const char *const yytname[] = {
+  "$end", "error", "$undefined", "PARSE_URL", "IDENTIFIER", "BINREF",
+  "PADREF", "REF", "ASSIGNMENT", "LINK", "'('", "')'", "','", "'.'", "'!'",
+  "'='", "$accept", "element", "assignments", "bin", "pads", "padlist",
+  "reference", "linkpart", "link", "linklist", "chain", "graph", 0
+};
+#endif
+
+# ifdef YYPRINT
+/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
+   token YYLEX-NUM.  */
+static const yytype_uint16 yytoknum[] = {
+  0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
+  40, 41, 44, 46, 33, 61
+};
+# endif
+
+/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
+static const yytype_uint8 yyr1[] = {
+  0, 16, 17, 17, 18, 18, 19, 19, 19, 19,
+  20, 20, 21, 21, 22, 22, 23, 23, 23, 24,
+  25, 25, 25, 26, 26, 26, 26, 26, 26, 26,
+  26, 27, 27
+};
+
+/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
+static const yytype_uint8 yyr2[] = {
+  0, 2, 1, 2, 0, 2, 4, 4, 3, 4,
+  1, 2, 2, 3, 1, 2, 1, 1, 0, 3,
+  1, 2, 2, 1, 1, 2, 2, 2, 2, 2,
+  2, 0, 1
+};
+
+/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
+   STATE-NUM when YYTABLE doesn't specify something else to do.  Zero
+   means the default is an error.  */
+static const yytype_uint8 yydefact[] = {
+  18, 18, 2, 4, 10, 14, 4, 23, 24, 17,
+  16, 0, 18, 0, 0, 0, 0, 0, 11, 15,
+  18, 3, 18, 30, 0, 27, 20, 0, 0, 1,
+  0, 5, 8, 0, 12, 0, 19, 0, 22, 9,
+  7, 13, 6
+};
+
+/* YYDEFGOTO[NTERM-NUM].  */
+static const yytype_int8 yydefgoto[] = {
+  -1, 7, 16, 8, 9, 18, 10, 11, 26, 27,
+  28, 14
+};
+
+/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+   STATE-NUM.  */
+#define YYPACT_NINF -6
+static const yytype_int16 yypact[] = {
+  134, 158, -6, -6, -1, -1, -6, 6, -6, -6,
+  -6, 7, 166, 101, 18, 30, 89, 16, -6, -6,
+  2, -6, 129, 142, 42, -6, 150, 54, 66, -6,
+  11, -6, -6, 111, -1, 122, -6, 78, -6, -6,
+  -6, -6, -6
+};
+
+/* YYPGOTO[NTERM-NUM].  */
+static const yytype_int8 yypgoto[] = {
+  -6, -6, 19, -6, -6, -5, -6, 10, 3, 12,
+  1, -6
+};
+
+/* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
+   positive, shift that token.  If negative, reduce the rule which
+   number is the opposite.  If zero, do what YYDEFACT says.
+   If YYTABLE_NINF, syntax error.  */
+#define YYTABLE_NINF -33
+static const yytype_int8 yytable[] = {
+  19, 13, 15, 12, 12, 1, 2, 3, 4, 5,
+  31, 17, 6, 24, 21, 12, 22, 33, 29, 12,
+  34, 35, 39, 12, 15, 20, 12, 24, 0, 41,
+  -29, 25, 36, 1, 2, 3, 4, 5, 37, -18,
+  6, -29, -28, 25, 0, 1, 2, 3, 4, 5,
+  0, -18, 6, -28, -26, 38, 0, -26, -26, -26,
+  -26, -26, 0, -26, -26, -26, -25, 25, 0, 1,
+  2, 3, 4, 5, 0, -18, 6, -25, -21, 38,
+  0, -21, -21, -21, -21, -21, 0, -21, -21, -21,
+  30, 0, 1, 2, 3, 4, 5, 31, -18, 6,
+  32, -32, 25, 0, 1, 2, 3, 4, 5, 0,
+  -18, 6, 25, 0, 1, 2, 3, 4, 5, 0,
+  -18, 6, 40, 25, 0, 1, 2, 3, 4, 5,
+  0, -18, 6, 42, -31, 4, 5, 1, 2, 3,
+  4, 5, 0, 0, 6, 1, 2, 3, 4, 5,
+  0, -18, 6, 23, 2, 3, 4, 5, 0, -18,
+  6, 1, 2, 3, 4, 5, 0, 0, 6, 23,
+  2, 3, 4, 5, 0, 0, 6
+};
+
+static const yytype_int8 yycheck[] = {
+  5, 0, 1, 0, 1, 3, 4, 5, 6, 7,
+  8, 12, 10, 12, 8, 12, 9, 16, 0, 16,
+  4, 20, 11, 20, 23, 6, 23, 26, -1, 34,
+  0, 1, 22, 3, 4, 5, 6, 7, 26, 9,
+  10, 11, 0, 1, -1, 3, 4, 5, 6, 7,
+  -1, 9, 10, 11, 0, 1, -1, 3, 4, 5,
+  6, 7, -1, 9, 10, 11, 0, 1, -1, 3,
+  4, 5, 6, 7, -1, 9, 10, 11, 0, 1,
+  -1, 3, 4, 5, 6, 7, -1, 9, 10, 11,
+  1, -1, 3, 4, 5, 6, 7, 8, 9, 10,
+  11, 0, 1, -1, 3, 4, 5, 6, 7, -1,
+  9, 10, 1, -1, 3, 4, 5, 6, 7, -1,
+  9, 10, 11, 1, -1, 3, 4, 5, 6, 7,
+  -1, 9, 10, 11, 0, 6, 7, 3, 4, 5,
+  6, 7, -1, -1, 10, 3, 4, 5, 6, 7,
+  -1, 9, 10, 3, 4, 5, 6, 7, -1, 9,
+  10, 3, 4, 5, 6, 7, -1, -1, 10, 3,
+  4, 5, 6, 7, -1, -1, 10
+};
+
+/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+   symbol of state STATE-NUM.  */
+static const yytype_uint8 yystos[] = {
+  0, 3, 4, 5, 6, 7, 10, 17, 19, 20,
+  22, 23, 24, 26, 27, 26, 18, 12, 21, 21,
+  18, 8, 9, 3, 26, 1, 24, 25, 26, 0,
+  1, 8, 11, 26, 4, 26, 23, 25, 1, 11,
+  11, 21, 11
+};
+
+#define yyerrok		(yyerrstatus = 0)
+#define yyclearin	(yychar = YYEMPTY)
+#define YYEMPTY		(-2)
+#define YYEOF		0
+
+#define YYACCEPT	goto yyacceptlab
+#define YYABORT		goto yyabortlab
+#define YYERROR		goto yyerrorlab
+
+
+/* Like YYERROR except do call yyerror.  This remains here temporarily
+   to ease the transition to the new meaning of YYERROR, for GCC.
+   Once GCC version 2 has supplanted version 1, this can go.  */
+
+#define YYFAIL		goto yyerrlab
+
+#define YYRECOVERING()  (!!yyerrstatus)
+
+#define YYBACKUP(Token, Value)					\
+do								\
+  if (yychar == YYEMPTY && yylen == 1)				\
+    {								\
+      yychar = (Token);						\
+      yylval = (Value);						\
+      yytoken = YYTRANSLATE (yychar);				\
+      YYPOPSTACK (1);						\
+      goto yybackup;						\
+    }								\
+  else								\
+    {								\
+      yyerror (scanner, graph, YY_("syntax error: cannot back up")); \
+      YYERROR;							\
+    }								\
+while (YYID (0))
+
+
+#define YYTERROR	1
+#define YYERRCODE	256
+
+
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+   If N is 0, then set CURRENT to the empty location which ends
+   the previous symbol: RHS[0] (always defined).  */
+
+#define YYRHSLOC(Rhs, K) ((Rhs)[K])
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N)				\
+    do									\
+      if (YYID (N))                                                    \
+	{								\
+	  (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;	\
+	  (Current).first_column = YYRHSLOC (Rhs, 1).first_column;	\
+	  (Current).last_line    = YYRHSLOC (Rhs, N).last_line;		\
+	  (Current).last_column  = YYRHSLOC (Rhs, N).last_column;	\
+	}								\
+      else								\
+	{								\
+	  (Current).first_line   = (Current).last_line   =		\
+	    YYRHSLOC (Rhs, 0).last_line;				\
+	  (Current).first_column = (Current).last_column =		\
+	    YYRHSLOC (Rhs, 0).last_column;				\
+	}								\
+    while (YYID (0))
+#endif
+
+
+/* YY_LOCATION_PRINT -- Print the location on the stream.
+   This macro was not mandated originally: define only if we know
+   we won't break user code: when these are the locations we know.  */
+
+#ifndef YY_LOCATION_PRINT
+# if YYLTYPE_IS_TRIVIAL
+#  define YY_LOCATION_PRINT(File, Loc)			\
+     fprintf (File, "%d.%d-%d.%d",			\
+	      (Loc).first_line, (Loc).first_column,	\
+	      (Loc).last_line,  (Loc).last_column)
+# else
+#  define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+# endif
+#endif
+
+
+/* YYLEX -- calling `yylex' with the right arguments.  */
+
+#ifdef YYLEX_PARAM
+# define YYLEX yylex (&yylval, YYLEX_PARAM)
+#else
+# define YYLEX yylex (&yylval)
+#endif
+
+/* Enable debugging if requested.  */
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+#  include <stdio.h>            /* INFRINGES ON USER NAME SPACE */
+#  define YYFPRINTF fprintf
+# endif
+
+# define YYDPRINTF(Args)			\
+do {						\
+  if (yydebug)					\
+    YYFPRINTF Args;				\
+} while (YYID (0))
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)			  \
+do {									  \
+  if (yydebug)								  \
+    {									  \
+      YYFPRINTF (stderr, "%s ", Title);					  \
+      yy_symbol_print (stderr,						  \
+		  Type, Value, scanner, graph); \
+      YYFPRINTF (stderr, "\n");						  \
+    }									  \
+} while (YYID (0))
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT.  |
+`--------------------------------*/
+
+ /*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+    static void
+yy_symbol_value_print (FILE * yyoutput, int yytype,
+    YYSTYPE const *const yyvaluep, void *scanner, graph_t * graph)
+#else
+    static void
+yy_symbol_value_print (yyoutput, yytype, yyvaluep, scanner, graph)
+     FILE *yyoutput;
+     int yytype;
+     YYSTYPE const *const yyvaluep;
+     void *scanner;
+     graph_t *graph;
+#endif
+{
+  if (!yyvaluep)
+    return;
+  YYUSE (scanner);
+  YYUSE (graph);
+# ifdef YYPRINT
+  if (yytype < YYNTOKENS)
+    YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
+# else
+  YYUSE (yyoutput);
+# endif
+  switch (yytype) {
+    default:
+      break;
+  }
+}
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT.  |
+`--------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_print (FILE * yyoutput, int yytype, YYSTYPE const *const yyvaluep,
+    void *scanner, graph_t * graph)
+#else
+static void
+yy_symbol_print (yyoutput, yytype, yyvaluep, scanner, graph)
+     FILE *yyoutput;
+     int yytype;
+     YYSTYPE const *const yyvaluep;
+     void *scanner;
+     graph_t *graph;
+#endif
+{
+  if (yytype < YYNTOKENS)
+    YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
+  else
+    YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
+
+  yy_symbol_value_print (yyoutput, yytype, yyvaluep, scanner, graph);
+  YYFPRINTF (yyoutput, ")");
+}
+
+/*------------------------------------------------------------------.
+| yy_stack_print -- Print the state stack from its BOTTOM up to its |
+| TOP (included).                                                   |
+`------------------------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static void
+yy_stack_print (yytype_int16 * bottom, yytype_int16 * top)
+#else
+static void
+yy_stack_print (bottom, top)
+     yytype_int16 *bottom;
+     yytype_int16 *top;
+#endif
+{
+  YYFPRINTF (stderr, "Stack now");
+  for (; bottom <= top; ++bottom)
+    YYFPRINTF (stderr, " %d", *bottom);
+  YYFPRINTF (stderr, "\n");
+}
+
+# define YY_STACK_PRINT(Bottom, Top)				\
+do {								\
+  if (yydebug)							\
+    yy_stack_print ((Bottom), (Top));				\
+} while (YYID (0))
+
+
+/*------------------------------------------------.
+| Report that the YYRULE is going to be reduced.  |
+`------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static void
+yy_reduce_print (YYSTYPE * yyvsp, int yyrule, void *scanner, graph_t * graph)
+#else
+static void
+yy_reduce_print (yyvsp, yyrule, scanner, graph)
+     YYSTYPE *yyvsp;
+     int yyrule;
+     void *scanner;
+     graph_t *graph;
+#endif
+{
+  int yynrhs = yyr2[yyrule];
+  int yyi;
+  unsigned long int yylno = yyrline[yyrule];
+
+  YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
+      yyrule - 1, yylno);
+  /* The symbols being reduced.  */
+  for (yyi = 0; yyi < yynrhs; yyi++) {
+    fprintf (stderr, "   $%d = ", yyi + 1);
+    yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
+        &(yyvsp[(yyi + 1) - (yynrhs)])
+        , scanner, graph);
+    fprintf (stderr, "\n");
+  }
+}
+
+# define YY_REDUCE_PRINT(Rule)		\
+do {					\
+  if (yydebug)				\
+    yy_reduce_print (yyvsp, Rule, scanner, graph); \
+} while (YYID (0))
+
+/* Nonzero means print parse trace.  It is left uninitialized so that
+   multiple parsers can coexist.  */
+int yydebug;
+#else /* !YYDEBUG */
+# define YYDPRINTF(Args)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
+# define YY_STACK_PRINT(Bottom, Top)
+# define YY_REDUCE_PRINT(Rule)
+#endif /* !YYDEBUG */
+
+
+/* YYINITDEPTH -- initial size of the parser's stacks.  */
+#ifndef	YYINITDEPTH
+# define YYINITDEPTH 200
+#endif
+
+/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
+   if the built-in stack extension method is used).
+
+   Do not make this value too large; the results are undefined if
+   YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
+   evaluated with infinite-precision integer arithmetic.  */
+
+#ifndef YYMAXDEPTH
+# define YYMAXDEPTH 10000
+#endif
+
+
+
+#if YYERROR_VERBOSE
+
+# ifndef yystrlen
+#  if defined __GLIBC__ && defined _STRING_H
+#   define yystrlen strlen
+#  else
+/* Return the length of YYSTR.  */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static YYSIZE_T
+yystrlen (const char *yystr)
+#else
+static YYSIZE_T
+yystrlen (yystr)
+     const char *yystr;
+#endif
+{
+  YYSIZE_T yylen;
+
+  for (yylen = 0; yystr[yylen]; yylen++)
+    continue;
+  return yylen;
+}
+#  endif
+# endif
+
+# ifndef yystpcpy
+#  if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
+#   define yystpcpy stpcpy
+#  else
+/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
+   YYDEST.  */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static char *
+yystpcpy (char *yydest, const char *yysrc)
+#else
+static char *
+yystpcpy (yydest, yysrc)
+     char *yydest;
+     const char *yysrc;
+#endif
+{
+  char *yyd = yydest;
+  const char *yys = yysrc;
+
+  while ((*yyd++ = *yys++) != '\0')
+    continue;
+
+  return yyd - 1;
+}
+#  endif
+# endif
+
+# ifndef yytnamerr
+/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
+   quotes and backslashes, so that it's suitable for yyerror.  The
+   heuristic is that double-quoting is unnecessary unless the string
+   contains an apostrophe, a comma, or backslash (other than
+   backslash-backslash).  YYSTR is taken from yytname.  If YYRES is
+   null, do not copy; instead, return the length of what the result
+   would have been.  */
+static YYSIZE_T
+yytnamerr (char *yyres, const char *yystr)
+{
+  if (*yystr == '"') {
+    YYSIZE_T yyn = 0;
+    char const *yyp = yystr;
+
+    for (;;)
+      switch (*++yyp) {
+        case '\'':
+        case ',':
+          goto do_not_strip_quotes;
+
+        case '\\':
+          if (*++yyp != '\\')
+            goto do_not_strip_quotes;
+          /* Fall through.  */
+        default:
+          if (yyres)
+            yyres[yyn] = *yyp;
+          yyn++;
+          break;
+
+        case '"':
+          if (yyres)
+            yyres[yyn] = '\0';
+          return yyn;
+      }
+  do_not_strip_quotes:;
+  }
+
+  if (!yyres)
+    return yystrlen (yystr);
+
+  return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
+
+/* Copy into YYRESULT an error message about the unexpected token
+   YYCHAR while in state YYSTATE.  Return the number of bytes copied,
+   including the terminating null byte.  If YYRESULT is null, do not
+   copy anything; just return the number of bytes that would be
+   copied.  As a special case, return 0 if an ordinary "syntax error"
+   message will do.  Return YYSIZE_MAXIMUM if overflow occurs during
+   size calculation.  */
+static YYSIZE_T
+yysyntax_error (char *yyresult, int yystate, int yychar)
+{
+  int yyn = yypact[yystate];
+
+  if (!(YYPACT_NINF < yyn && yyn <= YYLAST))
+    return 0;
+  else {
+    int yytype = YYTRANSLATE (yychar);
+    YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
+    YYSIZE_T yysize = yysize0;
+    YYSIZE_T yysize1;
+    int yysize_overflow = 0;
+    enum
+    { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+    char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+    int yyx;
+
+# if 0
+    /* This is so xgettext sees the translatable formats that are
+       constructed on the fly.  */
+    YY_ ("syntax error, unexpected %s");
+    YY_ ("syntax error, unexpected %s, expecting %s");
+    YY_ ("syntax error, unexpected %s, expecting %s or %s");
+    YY_ ("syntax error, unexpected %s, expecting %s or %s or %s");
+    YY_ ("syntax error, unexpected %s, expecting %s or %s or %s or %s");
+# endif
+    char *yyfmt;
+    char const *yyf;
+    static char const yyunexpected[] = "syntax error, unexpected %s";
+    static char const yyexpecting[] = ", expecting %s";
+    static char const yyor[] = " or %s";
+    char yyformat[sizeof yyunexpected
+        + sizeof yyexpecting - 1 + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
+            * (sizeof yyor - 1))];
+    char const *yyprefix = yyexpecting;
+
+    /* Start YYX at -YYN if negative to avoid negative indexes in
+       YYCHECK.  */
+    int yyxbegin = yyn < 0 ? -yyn : 0;
+
+    /* Stay within bounds of both yycheck and yytname.  */
+    int yychecklim = YYLAST - yyn + 1;
+    int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+    int yycount = 1;
+
+    yyarg[0] = yytname[yytype];
+    yyfmt = yystpcpy (yyformat, yyunexpected);
+
+    for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+      if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) {
+        if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM) {
+          yycount = 1;
+          yysize = yysize0;
+          yyformat[sizeof yyunexpected - 1] = '\0';
+          break;
+        }
+        yyarg[yycount++] = yytname[yyx];
+        yysize1 = yysize + yytnamerr (0, yytname[yyx]);
+        yysize_overflow |= (yysize1 < yysize);
+        yysize = yysize1;
+        yyfmt = yystpcpy (yyfmt, yyprefix);
+        yyprefix = yyor;
+      }
+
+    yyf = YY_ (yyformat);
+    yysize1 = yysize + yystrlen (yyf);
+    yysize_overflow |= (yysize1 < yysize);
+    yysize = yysize1;
+
+    if (yysize_overflow)
+      return YYSIZE_MAXIMUM;
+
+    if (yyresult) {
+      /* Avoid sprintf, as that infringes on the user's name space.
+         Don't have undefined behavior even if the translation
+         produced a string with the wrong number of "%s"s.  */
+      char *yyp = yyresult;
+      int yyi = 0;
+
+      while ((*yyp = *yyf) != '\0') {
+        if (*yyp == '%' && yyf[1] == 's' && yyi < yycount) {
+          yyp += yytnamerr (yyp, yyarg[yyi++]);
+          yyf += 2;
+        } else {
+          yyp++;
+          yyf++;
+        }
+      }
+    }
+    return yysize;
+  }
+}
+#endif /* YYERROR_VERBOSE */
+
+
+/*-----------------------------------------------.
+| Release the memory associated to this symbol.  |
+`-----------------------------------------------*/
+
+ /*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+    static void
+yydestruct (const char *yymsg, int yytype, YYSTYPE * yyvaluep, void *scanner,
+    graph_t * graph)
+#else
+    static void
+yydestruct (yymsg, yytype, yyvaluep, scanner, graph)
+     const char *yymsg;
+     int yytype;
+     YYSTYPE *yyvaluep;
+     void *scanner;
+     graph_t *graph;
+#endif
+{
+  YYUSE (yyvaluep);
+  YYUSE (scanner);
+  YYUSE (graph);
+
+  if (!yymsg)
+    yymsg = "Deleting";
+  YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
+
+  switch (yytype) {
+
+    default:
+      break;
+  }
+}
+
+
+/* Prevent warnings from -Wmissing-prototypes.  */
+
+#ifdef YYPARSE_PARAM
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void *YYPARSE_PARAM);
+#else
+int yyparse ();
+#endif
+#else /* ! YYPARSE_PARAM */
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void *scanner, graph_t * graph);
+#else
+int yyparse ();
+#endif
+#endif /* ! YYPARSE_PARAM */
+
+
+
+
+
+
+/*----------.
+| yyparse.  |
+`----------*/
+
+#ifdef YYPARSE_PARAM
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void *YYPARSE_PARAM)
+#else
+int
+yyparse (YYPARSE_PARAM)
+     void *YYPARSE_PARAM;
+#endif
+#else /* ! YYPARSE_PARAM */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void *scanner, graph_t * graph)
+#else
+int
+yyparse (scanner, graph)
+     void *scanner;
+     graph_t *graph;
+#endif
+#endif
+{
+  /* The look-ahead symbol.  */
+  int yychar;
+
+/* The semantic value of the look-ahead symbol.  */
+  YYSTYPE yylval;
+
+/* Number of syntax errors so far.  */
+  int yynerrs;
+
+  int yystate;
+  int yyn;
+  int yyresult;
+
+  /* Number of tokens to shift before error messages enabled.  */
+  int yyerrstatus;
+
+  /* Look-ahead token as an internal (translated) token number.  */
+  int yytoken = 0;
+
+#if YYERROR_VERBOSE
+  /* Buffer for error messages, and its allocated size.  */
+  char yymsgbuf[128];
+  char *yymsg = yymsgbuf;
+  YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
+#endif
+
+  /* Three stacks and their tools:
+     `yyss': related to states,
+     `yyvs': related to semantic values,
+     `yyls': related to locations.
+
+     Refer to the stacks thru separate pointers, to allow yyoverflow
+     to reallocate them elsewhere.  */
+
+  /* The state stack.  */
+  yytype_int16 yyssa[YYINITDEPTH];
+  yytype_int16 *yyss = yyssa;
+  yytype_int16 *yyssp;
+
+  /* The semantic value stack.  */
+  YYSTYPE yyvsa[YYINITDEPTH];
+  YYSTYPE *yyvs = yyvsa;
+  YYSTYPE *yyvsp;
+
+
+
+#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N))
+
+  YYSIZE_T yystacksize = YYINITDEPTH;
+
+  /* The variables used to return semantic value and location from the
+     action routines.  */
+  YYSTYPE yyval;
+
+
+  /* The number of symbols on the RHS of the reduced rule.
+     Keep to zero when no symbol should be popped.  */
+  int yylen = 0;
+
+  YYDPRINTF ((stderr, "Starting parse\n"));
+
+  yystate = 0;
+  yyerrstatus = 0;
+  yynerrs = 0;
+  yychar = YYEMPTY;             /* Cause a token to be read.  */
+
+  /* Initialize stack pointers.
+     Waste one element of value and location stack
+     so that they stay on the same level as the state stack.
+     The wasted elements are never initialized.  */
+
+  yyssp = yyss;
+  yyvsp = yyvs;
+
+  goto yysetstate;
+
+/*------------------------------------------------------------.
+| yynewstate -- Push a new state, which is found in yystate.  |
+`------------------------------------------------------------*/
+yynewstate:
+  /* In all cases, when you get here, the value and location stacks
+     have just been pushed.  So pushing a state here evens the stacks.  */
+  yyssp++;
+
+yysetstate:
+  *yyssp = yystate;
+
+  if (yyss + yystacksize - 1 <= yyssp) {
+    /* Get the current used size of the three stacks, in elements.  */
+    YYSIZE_T yysize = yyssp - yyss + 1;
+
+#ifdef yyoverflow
+    {
+      /* Give user a chance to reallocate the stack.  Use copies of
+         these so that the &'s don't force the real ones into
+         memory.  */
+      YYSTYPE *yyvs1 = yyvs;
+      yytype_int16 *yyss1 = yyss;
+
+
+      /* Each stack pointer address is followed by the size of the
+         data in use in that stack, in bytes.  This used to be a
+         conditional around just the two extra args, but that might
+         be undefined if yyoverflow is a macro.  */
+      yyoverflow (YY_ ("memory exhausted"),
+          &yyss1, yysize * sizeof (*yyssp),
+          &yyvs1, yysize * sizeof (*yyvsp), &yystacksize);
+
+      yyss = yyss1;
+      yyvs = yyvs1;
+    }
+#else /* no yyoverflow */
+# ifndef YYSTACK_RELOCATE
+    goto yyexhaustedlab;
+# else
+    /* Extend the stack our own way.  */
+    if (YYMAXDEPTH <= yystacksize)
+      goto yyexhaustedlab;
+    yystacksize *= 2;
+    if (YYMAXDEPTH < yystacksize)
+      yystacksize = YYMAXDEPTH;
+
+    {
+      yytype_int16 *yyss1 = yyss;
+      union yyalloc *yyptr =
+          (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
+      if (!yyptr)
+        goto yyexhaustedlab;
+      YYSTACK_RELOCATE (yyss);
+      YYSTACK_RELOCATE (yyvs);
+
+#  undef YYSTACK_RELOCATE
+      if (yyss1 != yyssa)
+        YYSTACK_FREE (yyss1);
+    }
+# endif
+#endif /* no yyoverflow */
+
+    yyssp = yyss + yysize - 1;
+    yyvsp = yyvs + yysize - 1;
+
+
+    YYDPRINTF ((stderr, "Stack size increased to %lu\n",
+            (unsigned long int) yystacksize));
+
+    if (yyss + yystacksize - 1 <= yyssp)
+      YYABORT;
+  }
+
+  YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+
+  goto yybackup;
+
+/*-----------.
+| yybackup.  |
+`-----------*/
+yybackup:
+
+  /* Do appropriate processing given the current state.  Read a
+     look-ahead token if we need one and don't already have one.  */
+
+  /* First try to decide what to do without reference to look-ahead token.  */
+  yyn = yypact[yystate];
+  if (yyn == YYPACT_NINF)
+    goto yydefault;
+
+  /* Not known => get a look-ahead token if don't already have one.  */
+
+  /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol.  */
+  if (yychar == YYEMPTY) {
+    YYDPRINTF ((stderr, "Reading a token: "));
+    yychar = YYLEX;
+  }
+
+  if (yychar <= YYEOF) {
+    yychar = yytoken = YYEOF;
+    YYDPRINTF ((stderr, "Now at end of input.\n"));
+  } else {
+    yytoken = YYTRANSLATE (yychar);
+    YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+  }
+
+  /* If the proper action on seeing token YYTOKEN is to reduce or to
+     detect an error, take that action.  */
+  yyn += yytoken;
+  if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
+    goto yydefault;
+  yyn = yytable[yyn];
+  if (yyn <= 0) {
+    if (yyn == 0 || yyn == YYTABLE_NINF)
+      goto yyerrlab;
+    yyn = -yyn;
+    goto yyreduce;
+  }
+
+  if (yyn == YYFINAL)
+    YYACCEPT;
+
+  /* Count tokens shifted since error; after three, turn off error
+     status.  */
+  if (yyerrstatus)
+    yyerrstatus--;
+
+  /* Shift the look-ahead token.  */
+  YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+
+  /* Discard the shifted token unless it is eof.  */
+  if (yychar != YYEOF)
+    yychar = YYEMPTY;
+
+  yystate = yyn;
+  *++yyvsp = yylval;
+
+  goto yynewstate;
+
+
+/*-----------------------------------------------------------.
+| yydefault -- do the default action for the current state.  |
+`-----------------------------------------------------------*/
+yydefault:
+  yyn = yydefact[yystate];
+  if (yyn == 0)
+    goto yyerrlab;
+  goto yyreduce;
+
+
+/*-----------------------------.
+| yyreduce -- Do a reduction.  |
+`-----------------------------*/
+yyreduce:
+  /* yyn is the number of a rule to reduce with.  */
+  yylen = yyr2[yyn];
+
+  /* If YYLEN is nonzero, implement the default value of the action:
+     `$$ = $1'.
+
+     Otherwise, the following line sets YYVAL to garbage.
+     This behavior is undocumented and Bison
+     users should not rely upon it.  Assigning to YYVAL
+     unconditionally makes the parser a bit smaller, and it avoids a
+     GCC warning that YYVAL may be used uninitialized.  */
+  yyval = yyvsp[1 - yylen];
+
+
+  YY_REDUCE_PRINT (yyn);
+  switch (yyn) {
+    case 2:
+#line 556 "./grammar.y"
+    {
+      (yyval.e) = gst_element_factory_make ((yyvsp[(1) - (1)].s), NULL);
+      if ((yyval.e) == NULL) {
+        SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_NO_SUCH_ELEMENT,
+            _("no element \"%s\""), (yyvsp[(1) - (1)].s));
+        gst_parse_strfree ((yyvsp[(1) - (1)].s));
+        YYERROR;
+      }
+      gst_parse_strfree ((yyvsp[(1) - (1)].s));
+      ;
+    }
+      break;
+
+    case 3:
+#line 564 "./grammar.y"
+    {
+      gst_parse_element_set ((yyvsp[(2) - (2)].s), (yyvsp[(1) - (2)].e), graph);
+      (yyval.e) = (yyvsp[(1) - (2)].e);
+      ;
+    }
+      break;
+
+    case 4:
+#line 568 "./grammar.y"
+    {
+      (yyval.p) = NULL;;
+    }
+      break;
+
+    case 5:
+#line 569 "./grammar.y"
+    {
+      (yyval.p) = g_slist_prepend ((yyvsp[(1) - (2)].p), (yyvsp[(2) - (2)].s));;
+    }
+      break;
+
+    case 6:
+#line 571 "./grammar.y"
+    {
+      GST_BIN_MAKE ((yyval.c), "bin", (yyvsp[(3) - (4)].c),
+          (yyvsp[(2) - (4)].p), FALSE);;
+    }
+      break;
+
+    case 7:
+#line 572 "./grammar.y"
+    {
+      GST_BIN_MAKE ((yyval.c), (yyvsp[(1) - (4)].s), (yyvsp[(3) - (4)].c),
+          (yyvsp[(2) - (4)].p), TRUE);
+      gst_parse_strfree ((yyvsp[(1) - (4)].s));
+      ;
+    }
+      break;
+
+    case 8:
+#line 575 "./grammar.y"
+    {
+      GST_BIN_MAKE ((yyval.c), (yyvsp[(1) - (3)].s), NULL, (yyvsp[(2) - (3)].p),
+          TRUE);
+      gst_parse_strfree ((yyvsp[(1) - (3)].s));
+      ;
+    }
+      break;
+
+    case 9:
+#line 578 "./grammar.y"
+    {
+      GST_BIN_MAKE ((yyval.c), (yyvsp[(1) - (4)].s), NULL, (yyvsp[(2) - (4)].p),
+          TRUE);
+      gst_parse_strfree ((yyvsp[(1) - (4)].s));
+      ;
+    }
+      break;
+
+    case 10:
+#line 583 "./grammar.y"
+    {
+      (yyval.p) = g_slist_prepend (NULL, (yyvsp[(1) - (1)].s));;
+    }
+      break;
+
+    case 11:
+#line 584 "./grammar.y"
+    {
+      (yyval.p) = (yyvsp[(2) - (2)].p);
+      (yyval.p) = g_slist_prepend ((yyval.p), (yyvsp[(1) - (2)].s));
+      ;
+    }
+      break;
+
+    case 12:
+#line 588 "./grammar.y"
+    {
+      (yyval.p) = g_slist_prepend (NULL, (yyvsp[(2) - (2)].s));;
+    }
+      break;
+
+    case 13:
+#line 589 "./grammar.y"
+    {
+      (yyval.p) = g_slist_prepend ((yyvsp[(3) - (3)].p), (yyvsp[(2) - (3)].s));;
+    }
+      break;
+
+    case 14:
+#line 592 "./grammar.y"
+    {
+      MAKE_REF ((yyval.l), (yyvsp[(1) - (1)].s), NULL);;
+    }
+      break;
+
+    case 15:
+#line 593 "./grammar.y"
+    {
+      MAKE_REF ((yyval.l), (yyvsp[(1) - (2)].s), (yyvsp[(2) - (2)].p));;
+    }
+      break;
+
+    case 16:
+#line 596 "./grammar.y"
+    {
+      (yyval.l) = (yyvsp[(1) - (1)].l);;
+    }
+      break;
+
+    case 17:
+#line 597 "./grammar.y"
+    {
+      MAKE_REF ((yyval.l), NULL, (yyvsp[(1) - (1)].p));;
+    }
+      break;
+
+    case 18:
+#line 598 "./grammar.y"
+    {
+      MAKE_REF ((yyval.l), NULL, NULL);;
+    }
+      break;
+
+    case 19:
+#line 601 "./grammar.y"
+    {
+      (yyval.l) = (yyvsp[(1) - (3)].l);
+      if ((yyvsp[(2) - (3)].s)) {
+        (yyval.l)->caps = gst_caps_from_string ((yyvsp[(2) - (3)].s));
+        if ((yyval.l)->caps == NULL)
+          SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_LINK,
+              _("could not parse caps \"%s\""), (yyvsp[(2) - (3)].s));
+        gst_parse_strfree ((yyvsp[(2) - (3)].s));
+      }
+      (yyval.l)->sink_name = (yyvsp[(3) - (3)].l)->src_name;
+      (yyval.l)->sink_pads = (yyvsp[(3) - (3)].l)->src_pads;
+      gst_parse_link_free ((yyvsp[(3) - (3)].l));
+      ;
+    }
+      break;
+
+    case 20:
+#line 614 "./grammar.y"
+    {
+      (yyval.p) = g_slist_prepend (NULL, (yyvsp[(1) - (1)].l));;
+    }
+      break;
+
+    case 21:
+#line 615 "./grammar.y"
+    {
+      (yyval.p) = g_slist_prepend ((yyvsp[(2) - (2)].p), (yyvsp[(1) - (2)].l));;
+    }
+      break;
+
+    case 22:
+#line 616 "./grammar.y"
+    {
+      (yyval.p) = (yyvsp[(1) - (2)].p);;
+    }
+      break;
+
+    case 23:
+#line 619 "./grammar.y"
+    {
+      (yyval.c) = gst_parse_chain_new ();
+      (yyval.c)->first = (yyval.c)->last = (yyvsp[(1) - (1)].e);
+      (yyval.c)->front = (yyval.c)->back = NULL;
+      (yyval.c)->elements = g_slist_prepend (NULL, (yyvsp[(1) - (1)].e));
+      ;
+    }
+      break;
+
+    case 24:
+#line 624 "./grammar.y"
+    {
+      (yyval.c) = (yyvsp[(1) - (1)].c);;
+    }
+      break;
+
+    case 25:
+#line 625 "./grammar.y"
+    {
+      if ((yyvsp[(1) - (2)].c)->back && (yyvsp[(2) - (2)].c)->front) {
+        if (!(yyvsp[(1) - (2)].c)->back->sink_name) {
+          SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_LINK,
+              _("link without source element"));
+          gst_parse_free_link ((yyvsp[(1) - (2)].c)->back);
+        } else {
+          ((graph_t *) graph)->links =
+              g_slist_prepend (((graph_t *) graph)->links,
+              (yyvsp[(1) - (2)].c)->back);
+        }
+        if (!(yyvsp[(2) - (2)].c)->front->src_name) {
+          SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_LINK,
+              _("link without sink element"));
+          gst_parse_free_link ((yyvsp[(2) - (2)].c)->front);
+        } else {
+          ((graph_t *) graph)->links =
+              g_slist_prepend (((graph_t *) graph)->links,
+              (yyvsp[(2) - (2)].c)->front);
+        }
+        (yyvsp[(1) - (2)].c)->back = NULL;
+      } else if ((yyvsp[(1) - (2)].c)->back) {
+        if (!(yyvsp[(1) - (2)].c)->back->sink_name) {
+          (yyvsp[(1) - (2)].c)->back->sink = (yyvsp[(2) - (2)].c)->first;
+        }
+      } else if ((yyvsp[(2) - (2)].c)->front) {
+        if (!(yyvsp[(2) - (2)].c)->front->src_name) {
+          (yyvsp[(2) - (2)].c)->front->src = (yyvsp[(1) - (2)].c)->last;
+        }
+        (yyvsp[(1) - (2)].c)->back = (yyvsp[(2) - (2)].c)->front;
+      }
+
+      if ((yyvsp[(1) - (2)].c)->back) {
+        ((graph_t *) graph)->links =
+            g_slist_prepend (((graph_t *) graph)->links,
+            (yyvsp[(1) - (2)].c)->back);
+      }
+      (yyvsp[(1) - (2)].c)->last = (yyvsp[(2) - (2)].c)->last;
+      (yyvsp[(1) - (2)].c)->back = (yyvsp[(2) - (2)].c)->back;
+      (yyvsp[(1) - (2)].c)->elements =
+          g_slist_concat ((yyvsp[(1) - (2)].c)->elements,
+          (yyvsp[(2) - (2)].c)->elements);
+      if ((yyvsp[(2) - (2)].c))
+        gst_parse_chain_free ((yyvsp[(2) - (2)].c));
+      (yyval.c) = (yyvsp[(1) - (2)].c);
+      ;
+    }
+      break;
+
+    case 26:
+#line 660 "./grammar.y"
+    {
+      GSList *walk;
+
+      if ((yyvsp[(1) - (2)].c)->back) {
+        (yyvsp[(2) - (2)].p) =
+            g_slist_prepend ((yyvsp[(2) - (2)].p), (yyvsp[(1) - (2)].c)->back);
+        (yyvsp[(1) - (2)].c)->back = NULL;
+      } else {
+        if (!((link_t *) (yyvsp[(2) - (2)].p)->data)->src_name) {
+          ((link_t *) (yyvsp[(2) - (2)].p)->data)->src =
+              (yyvsp[(1) - (2)].c)->last;
+        }
+      }
+      for (walk = (yyvsp[(2) - (2)].p); walk; walk = walk->next) {
+        link_t *link = (link_t *) walk->data;
+
+        if (!link->sink_name && walk->next) {
+          SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_LINK,
+              _("link without sink element"));
+          gst_parse_free_link (link);
+        } else if (!link->src_name && !link->src) {
+          SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_LINK,
+              _("link without source element"));
+          gst_parse_free_link (link);
+        } else {
+          if (walk->next) {
+            ((graph_t *) graph)->links =
+                g_slist_prepend (((graph_t *) graph)->links, link);
+          } else {
+            (yyvsp[(1) - (2)].c)->back = link;
+          }
+        }
+      }
+      g_slist_free ((yyvsp[(2) - (2)].p));
+      (yyval.c) = (yyvsp[(1) - (2)].c);
+      ;
+    }
+      break;
+
+    case 27:
+#line 688 "./grammar.y"
+    {
+      (yyval.c) = (yyvsp[(1) - (2)].c);;
+    }
+      break;
+
+    case 28:
+#line 689 "./grammar.y"
+    {
+      if ((yyvsp[(2) - (2)].c)->front) {
+        if (!(yyvsp[(2) - (2)].c)->front->src_name) {
+          SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_LINK,
+              _("link without source element"));
+          gst_parse_free_link ((yyvsp[(2) - (2)].c)->front);
+        } else {
+          ((graph_t *) graph)->links =
+              g_slist_prepend (((graph_t *) graph)->links,
+              (yyvsp[(2) - (2)].c)->front);
+        }
+      }
+      if (!(yyvsp[(1) - (2)].l)->sink_name) {
+        (yyvsp[(1) - (2)].l)->sink = (yyvsp[(2) - (2)].c)->first;
+      }
+      (yyvsp[(2) - (2)].c)->front = (yyvsp[(1) - (2)].l);
+      (yyval.c) = (yyvsp[(2) - (2)].c);
+      ;
+    }
+      break;
+
+    case 29:
+#line 703 "./grammar.y"
+    {
+      (yyval.c) = (yyvsp[(2) - (2)].c);
+      if ((yyval.c)->front) {
+        GstElement *element =
+            gst_element_make_from_uri (GST_URI_SRC, (yyvsp[(1) - (2)].s), NULL);
+        if (!element) {
+          SET_ERROR (((graph_t *) graph)->error,
+              GST_PARSE_ERROR_NO_SUCH_ELEMENT,
+              _("no source element for URI \"%s\""), (yyvsp[(1) - (2)].s));
+        } else {
+          (yyval.c)->front->src = element;
+          ((graph_t *) graph)->links = g_slist_prepend (
+              ((graph_t *) graph)->links, (yyval.c)->front);
+          (yyval.c)->front = NULL;
+          (yyval.c)->elements = g_slist_prepend ((yyval.c)->elements, element);
+        }
+      } else {
+        SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_LINK,
+            _("no element to link URI \"%s\" to"), (yyvsp[(1) - (2)].s));
+      }
+      g_free ((yyvsp[(1) - (2)].s));
+      ;
+    }
+      break;
+
+    case 30:
+#line 723 "./grammar.y"
+    {
+      GstElement *element =
+          gst_element_make_from_uri (GST_URI_SINK, (yyvsp[(2) - (2)].s), NULL);
+      if (!element) {
+        SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_NO_SUCH_ELEMENT,
+            _("no sink element for URI \"%s\""), (yyvsp[(2) - (2)].s));
+        gst_parse_link_free ((yyvsp[(1) - (2)].l));
+        g_free ((yyvsp[(2) - (2)].s));
+        YYERROR;
+      } else if ((yyvsp[(1) - (2)].l)->sink_name
+          || (yyvsp[(1) - (2)].l)->sink_pads) {
+        gst_object_unref (element);
+        SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_LINK,
+            _("could not link sink element for URI \"%s\""),
+            (yyvsp[(2) - (2)].s));
+        gst_parse_link_free ((yyvsp[(1) - (2)].l));
+        g_free ((yyvsp[(2) - (2)].s));
+        YYERROR;
+      } else {
+        (yyval.c) = gst_parse_chain_new ();
+        (yyval.c)->first = (yyval.c)->last = element;
+        (yyval.c)->front = (yyvsp[(1) - (2)].l);
+        (yyval.c)->front->sink = element;
+        (yyval.c)->elements = g_slist_prepend (NULL, element);
+      }
+      g_free ((yyvsp[(2) - (2)].s));
+      ;
+    }
+      break;
+
+    case 31:
+#line 748 "./grammar.y"
+    {
+      SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_EMPTY,
+          _("empty pipeline not allowed"));
+      (yyval.g) = (graph_t *) graph;
+      ;
+    }
+      break;
+
+    case 32:
+#line 751 "./grammar.y"
+    {
+      (yyval.g) = (graph_t *) graph;
+      if ((yyvsp[(1) - (1)].c)->front) {
+        if (!(yyvsp[(1) - (1)].c)->front->src_name) {
+          SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_LINK,
+              _("link without source element"));
+          gst_parse_free_link ((yyvsp[(1) - (1)].c)->front);
+        } else {
+          (yyval.g)->links =
+              g_slist_prepend ((yyval.g)->links, (yyvsp[(1) - (1)].c)->front);
+        }
+        (yyvsp[(1) - (1)].c)->front = NULL;
+      }
+      if ((yyvsp[(1) - (1)].c)->back) {
+        if (!(yyvsp[(1) - (1)].c)->back->sink_name) {
+          SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_LINK,
+              _("link without sink element"));
+          gst_parse_free_link ((yyvsp[(1) - (1)].c)->back);
+        } else {
+          (yyval.g)->links =
+              g_slist_prepend ((yyval.g)->links, (yyvsp[(1) - (1)].c)->back);
+        }
+        (yyvsp[(1) - (1)].c)->back = NULL;
+      }
+      (yyval.g)->chain = (yyvsp[(1) - (1)].c);
+      ;
+    }
+      break;
+
+
+/* Line 1267 of yacc.c.  */
+#line 2252 "grammar.tab.c"
+    default:
+      break;
+  }
+  YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
+
+  YYPOPSTACK (yylen);
+  yylen = 0;
+  YY_STACK_PRINT (yyss, yyssp);
+
+  *++yyvsp = yyval;
+
+
+  /* Now `shift' the result of the reduction.  Determine what state
+     that goes to, based on the state we popped back to and the rule
+     number reduced by.  */
+
+  yyn = yyr1[yyn];
+
+  yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
+  if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
+    yystate = yytable[yystate];
+  else
+    yystate = yydefgoto[yyn - YYNTOKENS];
+
+  goto yynewstate;
+
+
+/*------------------------------------.
+| yyerrlab -- here on detecting error |
+`------------------------------------*/
+yyerrlab:
+  /* If not already recovering from an error, report this error.  */
+  if (!yyerrstatus) {
+    ++yynerrs;
+#if ! YYERROR_VERBOSE
+    yyerror (scanner, graph, YY_ ("syntax error"));
+#else
+    {
+      YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
+
+      if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM) {
+        YYSIZE_T yyalloc = 2 * yysize;
+
+        if (!(yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
+          yyalloc = YYSTACK_ALLOC_MAXIMUM;
+        if (yymsg != yymsgbuf)
+          YYSTACK_FREE (yymsg);
+        yymsg = (char *) YYSTACK_ALLOC (yyalloc);
+        if (yymsg)
+          yymsg_alloc = yyalloc;
+        else {
+          yymsg = yymsgbuf;
+          yymsg_alloc = sizeof yymsgbuf;
+        }
+      }
+
+      if (0 < yysize && yysize <= yymsg_alloc) {
+        (void) yysyntax_error (yymsg, yystate, yychar);
+        yyerror (scanner, graph, yymsg);
+      } else {
+        yyerror (scanner, graph, YY_ ("syntax error"));
+        if (yysize != 0)
+          goto yyexhaustedlab;
+      }
+    }
+#endif
+  }
+
+
+
+  if (yyerrstatus == 3) {
+    /* If just tried and failed to reuse look-ahead token after an
+       error, discard it.  */
+
+    if (yychar <= YYEOF) {
+      /* Return failure if at end of input.  */
+      if (yychar == YYEOF)
+        YYABORT;
+    } else {
+      yydestruct ("Error: discarding", yytoken, &yylval, scanner, graph);
+      yychar = YYEMPTY;
+    }
+  }
+
+  /* Else will try to reuse look-ahead token after shifting the error
+     token.  */
+  goto yyerrlab1;
+
+
+/*---------------------------------------------------.
+| yyerrorlab -- error raised explicitly by YYERROR.  |
+`---------------------------------------------------*/
+yyerrorlab:
+
+  /* Pacify compilers like GCC when the user code never invokes
+     YYERROR and the label yyerrorlab therefore never appears in user
+     code.  */
+  if ( /*CONSTCOND*/ 0)
+    goto yyerrorlab;
+
+  /* Do not reclaim the symbols of the rule which action triggered
+     this YYERROR.  */
+  YYPOPSTACK (yylen);
+  yylen = 0;
+  YY_STACK_PRINT (yyss, yyssp);
+  yystate = *yyssp;
+  goto yyerrlab1;
+
+
+/*-------------------------------------------------------------.
+| yyerrlab1 -- common code for both syntax error and YYERROR.  |
+`-------------------------------------------------------------*/
+yyerrlab1:
+  yyerrstatus = 3;              /* Each real token shifted decrements this.  */
+
+  for (;;) {
+    yyn = yypact[yystate];
+    if (yyn != YYPACT_NINF) {
+      yyn += YYTERROR;
+      if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) {
+        yyn = yytable[yyn];
+        if (0 < yyn)
+          break;
+      }
+    }
+
+    /* Pop the current state because it cannot handle the error token.  */
+    if (yyssp == yyss)
+      YYABORT;
+
+
+    yydestruct ("Error: popping", yystos[yystate], yyvsp, scanner, graph);
+    YYPOPSTACK (1);
+    yystate = *yyssp;
+    YY_STACK_PRINT (yyss, yyssp);
+  }
+
+  if (yyn == YYFINAL)
+    YYACCEPT;
+
+  *++yyvsp = yylval;
+
+
+  /* Shift the error token.  */
+  YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
+
+  yystate = yyn;
+  goto yynewstate;
+
+
+/*-------------------------------------.
+| yyacceptlab -- YYACCEPT comes here.  |
+`-------------------------------------*/
+yyacceptlab:
+  yyresult = 0;
+  goto yyreturn;
+
+/*-----------------------------------.
+| yyabortlab -- YYABORT comes here.  |
+`-----------------------------------*/
+yyabortlab:
+  yyresult = 1;
+  goto yyreturn;
+
+#ifndef yyoverflow
+/*-------------------------------------------------.
+| yyexhaustedlab -- memory exhaustion comes here.  |
+`-------------------------------------------------*/
+yyexhaustedlab:
+  yyerror (scanner, graph, YY_ ("memory exhausted"));
+  yyresult = 2;
+  /* Fall through.  */
+#endif
+
+yyreturn:
+  if (yychar != YYEOF && yychar != YYEMPTY)
+    yydestruct ("Cleanup: discarding lookahead",
+        yytoken, &yylval, scanner, graph);
+  /* Do not reclaim the symbols of the rule which action triggered
+     this YYABORT or YYACCEPT.  */
+  YYPOPSTACK (yylen);
+  YY_STACK_PRINT (yyss, yyssp);
+  while (yyssp != yyss) {
+    yydestruct ("Cleanup: popping", yystos[*yyssp], yyvsp, scanner, graph);
+    YYPOPSTACK (1);
+  }
+#ifndef yyoverflow
+  if (yyss != yyssa)
+    YYSTACK_FREE (yyss);
+#endif
+#if YYERROR_VERBOSE
+  if (yymsg != yymsgbuf)
+    YYSTACK_FREE (yymsg);
+#endif
+  /* Make sure YYID is used.  */
+  return YYID (yyresult);
+}
+
+
+#line 774 "./grammar.y"
+
+
+
+static int
+yyerror (void *scanner, graph_t * graph, const char *s)
+{
+  /* FIXME: This should go into the GError somehow, but how? */
+  GST_WARNING ("Error during parsing: %s", s);
+  return -1;
+}
+
+
+GstElement *
+_gst_parse_launch (const gchar * str, GError ** error)
+{
+  graph_t g;
+  gchar *dstr;
+  GSList *walk;
+  GstBin *bin = NULL;
+  GstElement *ret;
+  yyscan_t scanner;
+
+  g_return_val_if_fail (str != NULL, NULL);
+
+  g.chain = NULL;
+  g.links = NULL;
+  g.error = error;
+
+#ifdef __GST_PARSE_TRACE
+  GST_CAT_DEBUG (GST_CAT_PIPELINE, "TRACE: tracing enabled");
+  __strings = __chains = __links = 0;
+#endif /* __GST_PARSE_TRACE */
+
+  dstr = g_strdup (str);
+  _gst_parse_yylex_init (&scanner);
+  _gst_parse_yy_scan_string (dstr, scanner);
+
+#ifndef YYDEBUG
+  yydebug = 1;
+#endif
+
+  if (yyparse (scanner, &g) != 0) {
+    SET_ERROR (error, GST_PARSE_ERROR_SYNTAX,
+        "Unrecoverable syntax error while parsing pipeline %s", str);
+
+    _gst_parse_yylex_destroy (scanner);
+    g_free (dstr);
+
+    goto error1;
+  }
+  _gst_parse_yylex_destroy (scanner);
+  g_free (dstr);
+
+  GST_CAT_DEBUG (GST_CAT_PIPELINE, "got %u elements and %u links",
+      g.chain ? g_slist_length (g.chain->elements) : 0,
+      g_slist_length (g.links));
+
+  if (!g.chain) {
+    ret = NULL;
+  } else if (!(((chain_t *) g.chain)->elements->next)) {
+    /* only one toplevel element */
+    ret = (GstElement *) ((chain_t *) g.chain)->elements->data;
+    g_slist_free (((chain_t *) g.chain)->elements);
+    if (GST_IS_BIN (ret))
+      bin = GST_BIN (ret);
+    gst_parse_chain_free (g.chain);
+  } else {
+    /* put all elements in our bin */
+    bin = GST_BIN (gst_element_factory_make ("pipeline", NULL));
+    g_assert (bin);
+
+    for (walk = g.chain->elements; walk; walk = walk->next) {
+      if (walk->data != NULL)
+        gst_bin_add (bin, GST_ELEMENT (walk->data));
+    }
+
+    g_slist_free (g.chain->elements);
+    ret = GST_ELEMENT (bin);
+    gst_parse_chain_free (g.chain);
+  }
+
+  /* remove links */
+  for (walk = g.links; walk; walk = walk->next) {
+    link_t *l = (link_t *) walk->data;
+
+    if (!l->src) {
+      if (l->src_name) {
+        if (bin) {
+          l->src = gst_bin_get_by_name_recurse_up (bin, l->src_name);
+          if (l->src)
+            gst_object_unref (l->src);
+        } else {
+          l->src =
+              strcmp (GST_ELEMENT_NAME (ret), l->src_name) == 0 ? ret : NULL;
+        }
+      }
+      if (!l->src) {
+        SET_ERROR (error, GST_PARSE_ERROR_NO_SUCH_ELEMENT,
+            "No element named \"%s\" - omitting link", l->src_name);
+        gst_parse_free_link (l);
+        continue;
+      }
+    }
+    if (!l->sink) {
+      if (l->sink_name) {
+        if (bin) {
+          l->sink = gst_bin_get_by_name_recurse_up (bin, l->sink_name);
+          if (l->sink)
+            gst_object_unref (l->sink);
+        } else {
+          l->sink =
+              strcmp (GST_ELEMENT_NAME (ret), l->sink_name) == 0 ? ret : NULL;
+        }
+      }
+      if (!l->sink) {
+        SET_ERROR (error, GST_PARSE_ERROR_NO_SUCH_ELEMENT,
+            "No element named \"%s\" - omitting link", l->sink_name);
+        gst_parse_free_link (l);
+        continue;
+      }
+    }
+    gst_parse_perform_link (l, &g);
+  }
+  g_slist_free (g.links);
+
+out:
+#ifdef __GST_PARSE_TRACE
+  GST_CAT_DEBUG (GST_CAT_PIPELINE,
+      "TRACE: %u strings, %u chains and %u links left", __strings, __chains,
+      __links);
+  if (__strings || __chains || __links) {
+    g_warning ("TRACE: %u strings, %u chains and %u links left", __strings,
+        __chains, __links);
+  }
+#endif /* __GST_PARSE_TRACE */
+
+  return ret;
+
+error1:
+  if (g.chain) {
+    g_slist_foreach (g.chain->elements, (GFunc) gst_object_unref, NULL);
+    g_slist_free (g.chain->elements);
+    gst_parse_chain_free (g.chain);
+  }
+
+  g_slist_foreach (g.links, (GFunc) gst_parse_free_link, NULL);
+  g_slist_free (g.links);
+
+  if (error)
+    g_assert (*error);
+  ret = NULL;
+
+  goto out;
+}