mirror of
https://git.savannah.gnu.org/git/bison.git
synced 2026-03-09 20:33:03 +00:00
35fe08345e
DOT format, not VCG format. * doc/bison.1: Likewise. * doc/bison.texinfo (Understanding, Bison Options): Likewise. * TODO: Remove Graphviz entry. * src/Makefile.am (bison_SOURCES): Add graphviz.c and graphviz.h; remove vcg.c, vcg.h, vcg_defaults.h. * src/vcg.c, src/vcg.h, src/vcg_defaults.h: Remove. * src/graphviz.c, src/graphviz.h: New files. * src/files.c (compute_output_file_names): Output .dot, not .vcg. * src/files.h: Make comment more generic. * src/main.c (main): Likewise. * src/print_graph.h: Likewise. * src/getargs.c (usage): Make usage description more generic. * src/print_graph.c: Include graphviz.h rather than vcg.h. (static_graph, fgraph): Remove. All uses changed to pass arguments instead of sharing a static var. (print_core, print_actions, print_state, print_graph): Output graphviz format rather than VCG format. * tests/.cvsignore: Remove *.vcg; add *.dot. * tests/output.at: Expect *.dot files, not *.vcg files.
67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
/* Output Graphviz specification of a state machine generated by Bison.
|
|
|
|
Copyright (C) 2006 Free Software Foundation, Inc.
|
|
|
|
This file is part of Bison, the GNU Compiler Compiler.
|
|
|
|
Bison 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.
|
|
|
|
Bison 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 Bison; see the file COPYING. If not, write to
|
|
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301, USA. */
|
|
|
|
/* Written by Paul Eggert and Satya Kiran Popuri. */
|
|
|
|
#include <config.h>
|
|
#include "system.h"
|
|
|
|
#include <quotearg.h>
|
|
|
|
#include "graphviz.h"
|
|
|
|
/* Return an unambiguous printable representation for NAME, suitable
|
|
for C strings. Use slot 2 since the user may use slots 0 and 1. */
|
|
|
|
static char const *
|
|
quote (char const *name)
|
|
{
|
|
return quotearg_n_style (2, c_quoting_style, name);
|
|
}
|
|
|
|
void
|
|
start_graph (FILE *fout)
|
|
{
|
|
fputs ("digraph Automaton{\n", fout);
|
|
}
|
|
|
|
void
|
|
output_node (int id, char const *label, FILE *fout)
|
|
{
|
|
fprintf (fout, "%d[label=%s]\n", id, quote (label));
|
|
}
|
|
|
|
void
|
|
output_edge (int source, int destination, char const *label,
|
|
char const *style, FILE *fout)
|
|
{
|
|
fprintf (fout, "%d->%d[style=%s", source, destination, style);
|
|
if (label)
|
|
fprintf (fout, " label=%s", quote (label));
|
|
fputs ("]\n", fout);
|
|
}
|
|
|
|
void
|
|
finish_graph (FILE *fout)
|
|
{
|
|
fputs ("}\n", fout);
|
|
}
|