/* fsalabmin.c 3/1/98.
* Minimizes a labeled finite state automaton using state labels as
* distinct categories of states on minimization.
* Can either use stdin/stdout or files.
*
* SYNOPSIS: fsalabmin [-ip d/s] [-op d/s] [-silent] [-v] [filename]
*
* Input is from filename (or stdin if not specified) ,
* which should contain an fsa with labeled state set.
* Output is to filename.labmin, or stdout.
*
* OPTIONS:
* -ip d/s input in dense or sparse format - dense is default
* -op d/s output in dense or sparse format - default is as in current
* value of table->printing_format, in the fsa.
* -v verbose
* -silent no diagnostics
* -l/-h large/huge hash-tables (for big examples)
*
*/
#include <stdio.h>
#include "defs.h"
#include "fsa.h"
#include "definitions.h"
static FILE *rfile, *wfile;
static void badusage(void);
int main(int argc, char *argv[])
{
int arg;
fsa testfsa;
char inf[100], outf[100], fsaname[100];
storage_type ip_store = DENSE;
boolean op_format_set = FALSE;
storage_type op_format = DENSE;
setbuf(stdout, (char *)0);
setbuf(stderr, (char *)0);
inf[0] = '\0';
arg = 1;
while (argc > arg) {
if (strcmp(argv[arg], "-ip") == 0) {
arg++;
if (arg >= argc)
badusage();
if (strcmp(argv[arg], "d") == 0)
ip_store = DENSE;
else if (strcmp(argv[arg], "s") == 0)
ip_store = SPARSE;
else
badusage();
}
else if (strcmp(argv[arg], "-op") == 0) {
arg++;
op_format_set = TRUE;
if (arg >= argc)
badusage();
if (strcmp(argv[arg], "d") == 0)
op_format = DENSE;
else if (strcmp(argv[arg], "s") == 0)
op_format = SPARSE;
else
badusage();
}
else if (strcmp(argv[arg], "-silent") == 0)
kbm_print_level = 0;
else if (strcmp(argv[arg], "-v") == 0)
kbm_print_level = 2;
else if (strcmp(argv[arg], "-vv") == 0)
kbm_print_level = 3;
else if (strcmp(argv[arg], "-l") == 0)
kbm_large = TRUE;
else if (strcmp(argv[arg], "-h") == 0)
kbm_huge = TRUE;
else {
if (argv[arg][0] == '-')
badusage();
if (strcmp(inf, ""))
badusage();
strcpy(inf, argv[arg]);
}
arg++;
}
if (stringlen(inf) != 0) {
strcpy(outf, inf);
strcat(outf, ".labmin");
if ((rfile = fopen(inf, "r")) == 0) {
fprintf(stderr, "Cannot open file %s.\n", inf);
exit(1);
}
}
else
rfile = stdin;
fsa_read(rfile, &testfsa, ip_store, 0, 0, TRUE, fsaname);
if (stringlen(inf) != 0)
fclose(rfile);
if (kbm_print_level > 1)
printf(" #Number of states of fsa before labeled minimization = %d.\n",
testfsa.states->size);
if (fsa_labeled_minimize(&testfsa) == -1)
exit(1);
if (kbm_print_level > 1)
printf(" #Number of states of fsa after labeled minimization = %d.\n",
testfsa.states->size);
if (op_format_set)
testfsa.table->printing_format = op_format;
strcat(fsaname, "_labmin");
if (stringlen(inf) != 0)
wfile = fopen(outf, "w");
else
wfile = stdout;
fsa_print(wfile, &testfsa, fsaname);
if (stringlen(inf) != 0)
fclose(wfile);
if (wfile != stdout && kbm_print_level > 0)
printf("#Minimized fsa with %d states computed.\n", testfsa.states->size);
fsa_clear(&testfsa);
exit(0);
}
void badusage(void)
{
fprintf(stderr, "Usage: fsalabmin [-ip d/s] [-op d/s] [-silent] [-v] [-l/-h] "
"[filename]\n");
exit(1);
}
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