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Automaton VCG graph output.

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Using option ``-g'' or long option ``--graph'', you can generate
a gram_filename.vcg file containing a VCG description of the LALR (1)
automaton of your grammar.
* src/main.c: Call to print_graph() function.
* src/getargs.h: Update.
* src/getargs.c (options): Update to catch `-g' and `--graph' options.
(graph_flag): New flag.
(longopts): Update.
(getargs): Add case `g'.
* src/files.c (graph_obstack): New obstack struct.
(open_files): Initialize new obstack.
(output_files): Saves graph_obstack if required.
* src/files.h (graph_obstack): New extern declaration.
* src/Makefile.am: Add new source files.
This commit is contained in:
Akim Demaille
2001-08-06 09:22:33 +00:00
parent ce4d5ce009
commit 22c2cbc078
8 changed files with 74 additions and 39 deletions
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8
src/getargs.c
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@@ -34,11 +34,12 @@ int token_table_flag = 0;
int verbose_flag = 0;
int statistics_flag = 0;
int yacc_flag = 0; /* for -y */
int graph_flag = 0;
const char *skeleton = NULL;
extern char *program_name;
const char *shortopts = "yvdhrltknVo:b:p:S:";
const char *shortopts = "yvgdhrltknVo:b:p:S:";
static struct option longopts[] =
{
/* Operation modes. */
@@ -63,6 +64,7 @@ static struct option longopts[] =
{"verbose", no_argument, 0, 'v'},
{"file-prefix", required_argument, 0, 'b'},
{"output-file", required_argument, 0, 'o'},
{"graph", no_argument, 0, 'g'},
/* Hidden. */
{"statistics", no_argument, &statistics_flag, 1},
@@ -178,6 +180,10 @@ getargs (int argc, char *argv[])
version (stdout);
exit (0);
case 'g':
graph_flag = 1;
break;
case 'v':
verbose_flag = 1;
break;