/* 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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