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83bae26d3f
* src/graphviz.c (output_red): New, show reductions on the graph. (no_reduce_bitset_init): New, initialize a bitset. (print_token): New, print a lookahead token. (escape): New, print "foo" as \"foo\" because Dot doesn't like quotes within a label. * src/graphviz.h : Adjust. * src/print_graph.c (print_actions): Call output_red here. Signed-off-by: Akim Demaille <akim@lrde.epita.fr>
62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/* Output Graphviz specification of a state machine generated by Bison.
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Copyright (C) 2006, 2010-2012 Free Software Foundation, Inc.
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This file is part of Bison, the GNU Compiler Compiler.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Written by Paul Eggert and Satya Kiran Popuri. */
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#ifndef GRAPHVIZ_H_
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# define GRAPHVIZ_H_
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#include "state.h"
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/// Begin a Dot graph.
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/// \param fout output stream.
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void start_graph (FILE *fout);
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/// Output a Dot node.
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/// \param id identifier of the node
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/// \param label human readable label of the node (no Dot escaping needed).
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/// \param fout output stream.
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void output_node (int id, char const *label, FILE *fout);
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/// Output a Dot edge.
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/// \param source id of the source node
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/// \param destination id of the target node
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/// \param label human readable label of the edge
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/// (no Dot escaping needed). Can be 0.
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/// \param style Dot style of the edge (e.g., "dotted" or "solid").
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/// \param fout output stream.
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void output_edge (int source, int destination, char const *label,
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char const *style, FILE *fout);
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/// Output a reduction.
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/// \param s current state
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/// \param reds the set of reductions
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/// \param fout output stream.
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void output_red (state const *s, reductions const *reds, FILE *fout);
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/// End a Dot graph.
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/// \param fout output stream.
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void finish_graph (FILE *fout);
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/// Escape a lookahead token.
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/// \param name the token.
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char const *escape (char const *name);
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#endif /* ! GRAPHVIZ_H_ */
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