version 3.0

[bison.git] / src / graphviz.h

diff --git a/src/graphviz.h b/src/graphviz.h
index 1cf9422f4200ceab11d85fb64b6c7f5e39b123ba..0254ef748b3a864a5140e9d55d64b7940c982b42 100644 (file)
--- a/src/graphviz.h
+++ b/src/graphviz.h
@@ -1,7 +1,71 @@
-#include <stdbool.h>
+/* Output Graphviz specification of a state machine generated by Bison.
 
+   Copyright (C) 2006, 2010-2013 Free Software Foundation, Inc.
+
+   This file is part of Bison, the GNU Compiler Compiler.
+
+   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 3 of the License, 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, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Paul Eggert and Satya Kiran Popuri.  */
+
+#ifndef GRAPHVIZ_H_
+# define GRAPHVIZ_H_
+
+# include "state.h"
+
+/** Begin a Dot graph.
+ *
+ * \param fout   output stream.
+ */
 void start_graph (FILE *fout);
+
+/** Output a Dot node.
+ *
+ * \param id     identifier of the node
+ * \param label  human readable label of the node (no Dot escaping needed).
+ * \param fout   output stream.
+ */
 void output_node (int id, char const *label, FILE *fout);
+
+/** Output a Dot edge.
+ * \param source       id of the source node
+ * \param destination  id of the target node
+ * \param label        human readable label of the edge
+ *                     (no Dot escaping needed).  Can be 0.
+ * \param style        Dot style of the edge (e.g., "dotted" or "solid").
+ * \param fout         output stream.
+ */
 void output_edge (int source, int destination, char const *label,
-                 char const *style, FILE *fout);
+                  char const *style, FILE *fout);
+
+/** Output a reduction.
+ * \param s            current state
+ * \param reds         the set of reductions
+ * \param fout         output stream.
+ */
+void output_red (state const *s, reductions const *reds, FILE *fout);
+
+/** End a Dot graph.
+ *
+ * \param fout  output stream.
+ */
 void finish_graph (FILE *fout);
+
+/** Escape a lookahead token.
+ *
+ * \param name         the token.
+ */
+char const *escape (char const *name);
+
+#endif /* ! GRAPHVIZ_H_ */