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/* Output Graphviz specification of a state machine generated by Bison.
Copyright (C) 2006, 2010 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_
/// 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);
/// End a Dot graph.
/// \param fout output stream.
void finish_graph (FILE *fout);
#endif /* ! GRAPHVIZ_H_ */
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