/* fsaswapcoords.c 15/4/96.
*
* Swaps coordinates of a 2-variable fsa. That is it replaces transitions
* s - (a,b) -> t by s - (b,a) -> t, for a,b in the base-alphabet.
*
* SYNOPSIS: fsaswapcoords [-op d/s] [-v] [-silent] [filename1 filename2]
*
* Input is from filename1 or stdin and should contain a 2-variable fsa
* Output to stdout or filename2.
* Input is always in dense format.
*
* OPTIONS:
* -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
*/
#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];
boolean op_format_set = FALSE;
storage_type op_format = SPARSE;
setbuf(stdout, (char *)0);
setbuf(stderr, (char *)0);
inf[0] = '\0';
outf[0] = '\0';
arg = 1;
while (argc > arg) {
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 (argv[arg][0] == '-')
badusage();
else {
if (argv[arg][0] == '-')
badusage();
if (strcmp(outf, ""))
badusage();
if (strcmp(inf, "") == 0)
strcpy(inf, argv[arg]);
else
strcpy(outf, argv[arg]);
}
arg++;
}
if (stringlen(inf) == 0)
rfile = stdin;
else if ((rfile = fopen(inf, "r")) == 0) {
fprintf(stderr, "Cannot open file %s.\n", inf);
exit(1);
}
fsa_read(rfile, &testfsa, DENSE, 0, 0, TRUE, fsaname);
if (stringlen(inf) != 0)
fclose(rfile);
if (fsa_swap_coords(&testfsa) == -1)
exit(1);
if (op_format_set)
testfsa.table->printing_format = op_format;
base_prefix(fsaname);
strcat(fsaname, "_swap_coords");
if (stringlen(outf) == 0)
wfile = stdout;
else
wfile = fopen(outf, "w");
fsa_print(wfile, &testfsa, fsaname);
if (stringlen(outf) != 0)
fclose(wfile);
fsa_clear(&testfsa);
exit(0);
}
void badusage(void)
{
fprintf(
stderr,
"Usage: fsaswapcoords [-op d/s] [-silent] [-v] [filename1 filename2]\n");
exit(1);
}
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*© Formatika GbR, Deutschland