/* gpgenmult2.c 28/11/94.
* 8 / 10 / 98 large - scale re - organisation .
* Calculates the general multiplier automaton of a short - lex automatic group ,
* for words in the generators of length 2 .
* This program assumes that kbprog with - wd option , gpwa , gpgenmult
* and preferably gpcheckmult ( or gpmakefsa ) have already been run of G .
*
* SYNOPSIS :
* gpgenmult2 [ - ip d / s [ dr ] ] [ - op d / s ] [ - silent ] [ - v ] [ - l / - h ] [ - f ] groupname
*
* Input is from groupname . gm
* Output is to groupname . gm2 , but under the - f option ,
* the unformatted transition table goes to groupname . gm2_ut .
*
* OPTIONS :
* - ip d / s [ dr ] input in dense or sparse format - dense is default
* - 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 )
* - 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 "definitions.h"
static FILE *rfile, *wfile;
static void badusage(void );
int main(int argc, char *argv[])
{
int arg;
fsa genmult, *genmult2ptr;
char inf[100 ], outf[100 ], fsaname[100 ], tablefilename[100 ];
storage_type ip_store = DENSE;
int dr = 0 ;
storage_type op_store = SPARSE;
boolean readback = TRUE ;
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 (strcmp(argv[arg], "-f" ) == 0 )
readback = FALSE ;
else {
if (argv[arg][0 ] == '-' )
badusage();
if (strcmp(inf, "" ) != 0 )
badusage();
else
strcpy(inf, argv[arg]);
}
arg++;
}
if (stringlen(inf) == 0 )
badusage();
strcpy(tablefilename, inf);
strcat(tablefilename, ".gm2_ut" );
strcpy(outf, inf);
strcat(outf, ".gm2" );
strcat(inf, ".gm" );
if ((rfile = fopen(inf, "r" )) == 0 ) {
fprintf(stderr, "Cannot open file %s.\n" , inf);
exit (1 );
}
fsa_read(rfile, &genmult, ip_store, dr, 0 , TRUE , fsaname);
fclose(rfile);
genmult2ptr = fsa_genmult2(&genmult, op_store, TRUE , tablefilename, readback);
if (genmult2ptr == 0 )
exit (1 );
if (kbm_print_level > 1 )
printf(" #Number of states of genmult2 = %d.\n" ,
genmult2ptr->states->size);
if (readback) {
if (fsa_labeled_minimize(genmult2ptr) == -1 )
exit (1 );
}
else {
if (fsa_ip_labeled_minimize(genmult2ptr) == -1 )
exit (1 );
}
if (kbm_print_level > 1 )
printf(" #Number of states of genmult2 after minimization = %d.\n" ,
genmult2ptr->states->size);
base_prefix(fsaname);
strcat(fsaname, ".gm2" );
wfile = fopen(outf, "w" );
fsa_print(wfile, genmult2ptr, fsaname);
fclose(wfile);
if (kbm_print_level > 0 )
printf("#Generalised length-2 multiplier with %d states computed.\n" ,
genmult2ptr->states->size);
fsa_clear(genmult2ptr);
tfree(genmult2ptr);
exit (0 );
}
void badusage(void )
{
fprintf(stderr, "Usage: \n" );
fprintf(stderr, "gpgenmult2 [-ip d/s[dr]] [-op d/s] [-silent] [-v] [-l/-h] "
"[-f] groupname.\n" );
exit (1 );
}
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