/* gpdifflabs.c 18/1/98
* Input a two-variable fsa reading pairs of words of an automatic group,
* and output an fsa which accepts the same language but with states labeled
* by the associated word-differences.
*
* SYNOPSIS:
* gpdifflabs [-diff1] [-op d/s] [-silent] [-v] [-l/-h] [-f] groupname fsaname
*
* Input is from groupname.fsaname and groupname.diff2
* (and possibly from groupname.diff1 or groupname.diff1c)
* called).
* Output is to groupname.fsaname.difflabs
*
* OPTIONS:
* -op d/s output in dense or sparse format - sparse is default
* -v verbose
* -silent no diagnostics
* -l/-h large/huge hash-tables (for big examples)
* -diff1/-diff2/-diff1c
* input from groupname.diff1, diff2 or diff1c for word-reduction.
* groupname.diff2 is default.
* -f read the transition table repeatedly from file while mimimizing.
* this avoids storing the large table, but is a little slower.
*
*/
#include <stdio.h>
#include "defs.h"
#include "fsa.h"
#include "rws.h"
#include "definitions.h"
static FILE *rfile, *wfile;
static void badusage(void);
int (*reduce_word)(gen *w, reduction_struct *rs_rws);
int main(int argc, char *argv[])
{
int arg;
fsa fsaip, *difflabsptr;
char inf1[100], inf2[100], outf[100], fsaname[100], tempfilename[100];
reduction_struct rs_wd;
storage_type op_store = SPARSE;
boolean diff1_ip, diff1c_ip, diff2_ip;
boolean readback = TRUE;
setbuf(stdout, (char *)0);
setbuf(stderr, (char *)0);
inf1[0] = '\0';
inf2[0] = '\0';
arg = 1;
diff1_ip = diff1c_ip = diff2_ip = FALSE;
while (argc > arg) {
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 (strcmp(argv[arg], "-diff1") == 0)
diff1_ip = TRUE;
else if (strcmp(argv[arg], "-diff2") == 0)
diff2_ip = TRUE;
else if (strcmp(argv[arg], "-diff1c") == 0)
diff1c_ip = TRUE;
else {
if (argv[arg][0] == '-')
badusage();
if (strcmp(inf2, "") == 0) {
strcpy(inf2, argv[arg]);
}
else {
strcpy(inf1, inf2);
strcat(inf1, ".");
strcat(inf1, argv[arg]);
}
}
arg++;
}
if (stringlen(inf1) == 0)
badusage();
strcpy(tempfilename, inf1);
strcat(tempfilename, "temp_d_XXX");
if (diff1_ip)
strcat(inf2, ".diff1");
else if (diff1c_ip)
strcat(inf2, ".diff1c");
else
strcat(inf2, ".diff2");
strcpy(outf, inf1);
strcat(outf, ".difflabs");
/* First read word-difference machine for word-reduction */
if ((rfile = fopen(inf2, "r")) == 0) {
fprintf(stderr, "Cannot open file %s.\n", inf2);
exit(1);
}
tmalloc(rs_wd.wd_fsa, fsa, 1);
fsa_read(rfile, rs_wd.wd_fsa, DENSE, 0, 0, TRUE, fsaname);
fclose(rfile);
if (fsa_table_dptr_init(rs_wd.wd_fsa) == -1)
exit(1);
/* Now read main input fsa */
if ((rfile = fopen(inf1, "r")) == 0) {
fprintf(stderr, "Cannot open file %s.\n", inf1);
exit(1);
}
fsa_read(rfile, &fsaip, DENSE, 0, 0, TRUE, fsaname);
fclose(rfile);
difflabsptr =
fsa_difflabs(&fsaip, &rs_wd, op_store, TRUE, tempfilename, readback);
if (difflabsptr == 0)
exit(1);
if (kbm_print_level > 1)
printf(" #Number of states of labeled machine before minimisation = %d.\n",
difflabsptr->states->size);
if (readback) {
if (fsa_labeled_minimize(difflabsptr) == -1)
exit(1);
}
else if (fsa_ip_labeled_minimize(difflabsptr) == -1)
exit(1);
if (kbm_print_level > 1)
printf(" #Number of states of labeled machine after minimisation = %d.\n",
difflabsptr->states->size);
base_prefix(fsaname);
strcat(fsaname, ".difflabs");
wfile = fopen(outf, "w");
fsa_print(wfile, difflabsptr, fsaname);
fclose(wfile);
if (kbm_print_level > 0)
printf("#Labeled word-difference machine with %d states computed.\n",
difflabsptr->states->size);
fsa_clear(difflabsptr);
tfree(difflabsptr);
tfree(rs_wd.wd_fsa);
exit(0);
}
void badusage(void)
{
fprintf(stderr,
"Usage: gpdifflabs [-diff1] [-op d/s] [-silent] [-v] [-l/-h]\n");
fprintf(stderr, " [-f] groupname fsaname.\n");
exit(1);
}
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