int main(int ac, char *av[]) {
backend_t *b; /* backend info */
FILE *fin, *fout;
int i;
char *outfile;
/* platform-specific initializations, e.g., set file i/o to binary */
platform_init();
/* process options */
dopts(ac, av);
b = info.backend;
if (b==NULL) {
fprintf(stderr, ""POTRACE": internal error: selected backend not found\n");
exit(1);
}
/* fix some parameters */
/* if backend cannot handle opticurve, disable it */
if (b->opticurve == 0) {
info.param->opticurve = 0;
}
/* there are several ways to call us:
potrace -- stdin to stdout
potrace -o outfile -- stdin to outfile
potrace file... -- encode each file and generate outfile names
potrace -o outfile file... -- concatenate files and write to outfile
The latter form is only allowed one file for single-page
backends. For multi-page backends, each file must contain 0 or
more complete bitmaps.
*/
if (!info.some_infiles) { /* read from stdin */
fout = my_fopen_write(info.outfile);
if (!fout) {
fprintf(stderr, ""POTRACE": %s: %s\n", info.outfile ? info.outfile : "stdout", strerror(errno));
exit(2);
}
if (b->init_f) {
TRY(b->init_f(fout));
}
process_file(b, "stdin", info.outfile ? info.outfile : "stdout", stdin, fout);
if (b->term_f) {
TRY(b->term_f(fout));
}
my_fclose(fout, info.outfile);
free(info.outfile);
potrace_param_free(info.param);
return 0;
} else if (!info.outfile) { /* infiles -> multiple outfiles */
for (i=0; i<info.infilecount; i++) {
outfile = make_outfilename(info.infiles[i], b->ext);
if (!outfile) {
fprintf(stderr, ""POTRACE": %s\n", strerror(errno));
exit(2);
}
fin = my_fopen_read(info.infiles[i]);
if (!fin) {
fprintf(stderr, ""POTRACE": %s: %s\n", info.infiles[i], strerror(errno));
exit(2);
}
fout = my_fopen_write(outfile);
if (!fout) {
fprintf(stderr, ""POTRACE": %s: %s\n", outfile, strerror(errno));
exit(2);
}
if (b->init_f) {
TRY(b->init_f(fout));
}
process_file(b, info.infiles[i], outfile, fin, fout);
if (b->term_f) {
TRY(b->term_f(fout));
}
my_fclose(fin, info.infiles[i]);
my_fclose(fout, outfile);
free(outfile);
}
potrace_param_free(info.param);
return 0;
} else { /* infiles to single outfile */
if (!b->multi && info.infilecount >= 2) {
fprintf(stderr, ""POTRACE": cannot use multiple input files with -o in %s mode\n", b->name);
exit(1);
}
if (info.infilecount == 0) {
fprintf(stderr, ""POTRACE": cannot use empty list of input files with -o\n");
exit(1);
}
fout = my_fopen_write(info.outfile);
if (!fout) {
fprintf(stderr, ""POTRACE": %s: %s\n", info.outfile, strerror(errno));
exit(2);
}
if (b->init_f) {
TRY(b->init_f(fout));
}
for (i=0; i<info.infilecount; i++) {
fin = my_fopen_read(info.infiles[i]);
if (!fin) {
fprintf(stderr, ""POTRACE": %s: %s\n", info.infiles[i], strerror(errno));
exit(2);
}
process_file(b, info.infiles[i], info.outfile, fin, fout);
my_fclose(fin, info.infiles[i]);
}
if (b->term_f) {
TRY(b->term_f(fout));
}
my_fclose(fout, info.outfile);
free(info.outfile);
potrace_param_free(info.param);
return 0;
}
/* not reached */
try_error:
fprintf(stderr, ""POTRACE": %s\n", strerror(errno));
exit(2);
}
int main(int ac, char *av[]) {
FILE *fin, *fout;
int i;
char *outfile;
/* platform-specific initializations, e.g., set file i/o to binary */
platform_init();
/* process options */
dopts(ac, av);
/* there are several ways to call us:
mkbitmap -- stdin to stdout
mkbitmap -o outfile -- stdin to outfile
mkbitmap file... -- encode each file and generate outfile names
mkbitmap file... -o outfile -- concatenate files and write to outfile
*/
if (info.infilecount == 0 && info.outfile == NULL) { /* stdin to stdout */
process_file(stdin, stdout, "stdin", "stdout");
return 0;
} else if (info.infilecount == 0) { /* stdin to outfile */
fout = my_fopen_write(info.outfile);
if (!fout) {
fprintf(stderr, "mkbitmap: %s: %s\n", info.outfile, strerror(errno));
exit(2);
}
process_file(stdin, fout, "stdin", info.outfile);
my_fclose(fout, info.outfile);
free(info.outfile);
return 0;
} else if (info.outfile == NULL) { /* infiles -> multiple outfiles */
for (i=0; i<info.infilecount; i++) {
outfile = make_outfilename(info.infiles[i], info.outext);
if (!outfile) {
fprintf(stderr, "mkbitmap: %s\n", strerror(errno));
exit(2);
}
fin = my_fopen_read(info.infiles[i]);
if (!fin) {
fprintf(stderr, "mkbitmap: %s: %s\n", info.infiles[i], strerror(errno));
exit(2);
}
fout = my_fopen_write(outfile);
if (!fout) {
fprintf(stderr, "mkbitmap: %s: %s\n", outfile, strerror(errno));
exit(2);
}
process_file(fin, fout, info.infiles[i], outfile);
my_fclose(fin, info.infiles[i]);
my_fclose(fout, outfile);
free(outfile);
}
return 0;
} else { /* infiles to single outfile */
fout = my_fopen_write(info.outfile);
if (!fout) {
fprintf(stderr, "mkbitmap: %s: %s\n", info.outfile, strerror(errno));
exit(2);
}
for (i=0; i<info.infilecount; i++) {
fin = my_fopen_read(info.infiles[i]);
if (!fin) {
fprintf(stderr, "mkbitmap: %s: %s\n", info.infiles[i], strerror(errno));
exit(2);
}
process_file(fin, fout, info.infiles[i], info.outfile);
my_fclose(fin, info.infiles[i]);
}
my_fclose(fout, info.outfile);
free(info.outfile);
return 0;
}
/* not reached */
}