/* fsaexists.c 4/11/94.
* Calculates finite state automaton that accepts w_1 if and only if
* input automaton accepts (w_1,w_2) for some w_2.
*
* SYNOPSIS: fsaexists [-ip d/s[dr]] [-op d/s] [-silent] [-v] [-l/-h]
* filename
*
* Input is from filename, which should contain a fsa.
* Output is to filename.exists
*
* OPTIONS:
* -ip d/s[dr] 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 fsain, *fsaexists;
char inf[100], outf[100], fsaname[100], tempfilename[100];
storage_type ip_store = DENSE;
int dr = 0;
storage_type op_store = 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 (argv[arg][0] == 's') {
ip_store = SPARSE;
if (stringlen(argv[arg]) > 1)
dr = atoi(argv[arg] + 1);
}
else
badusage();
}
else if (strcmp(argv[arg], "-op") == 0) {
arg++;
if (arg >= argc)
badusage();
if (strcmp(argv[arg], "d") == 0)
op_store = DENSE;
else if (strcmp(argv[arg], "s") == 0)
op_store = 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)
badusage();
strcpy(outf, inf);
strcat(outf, ".exists");
if ((rfile = fopen(inf, "r")) == 0) {
fprintf(stderr, "Cannot open file %s.\n", inf);
exit(1);
}
fsa_read(rfile, &fsain, ip_store, dr, 0, TRUE, fsaname);
if (fsain.alphabet->type != PRODUCT || fsain.alphabet->arity != 2) {
fprintf(stderr, "Error: fsa must be 2-variable.\n");
exit(1);
}
strcpy(tempfilename, inf);
strcat(tempfilename, "temp_exists_XXX");
fsaexists = fsa_exists(&fsain, op_store, TRUE, tempfilename);
if (fsaexists == 0)
exit(1);
if (kbm_print_level > 1)
printf(" Number of states of fsaexists before minimisation = %d.\n",
fsaexists->states->size);
if (fsa_minimize(fsaexists) == -1)
exit(1);
if (kbm_print_level > 1)
printf(" Number of states of fsaexists after minimisation = %d.\n",
fsaexists->states->size);
strcat(fsaname, "_exists");
wfile = fopen(outf, "w");
fsa_print(wfile, fsaexists, fsaname);
fclose(wfile);
if (kbm_print_level > 0)
printf("#\"Exists\" fsa with %d states computed.\n",
fsaexists->states->size);
fsa_clear(fsaexists);
tfree(fsaexists);
exit(0);
}
void badusage(void)
{
fprintf(stderr, "Usage: fsaexists [-ip d/s[dr]] [-op d/s] [-silent] [-v] "
"[-l/-h] filename\n");
exit(1);
}
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet am 2026-11-04)
¤
*© Formatika GbR, Deutschland