static bool handle_flag_defaults(void) {
if (flag_gid ||
flag_base_dir ||
flag_inactive != FLAG_NOT_SET ||
flag_expiredate != FLAG_NOT_SET ||
flag_shell) {
return set_defaults();
} else {
return show_defaults();
}
}
static void dopts(int ac, char *av[]) {
int c;
char *p;
int i, j, r;
dim_t dim, dimx, dimy;
int matches, bestmatch;
/* defaults */
backend_lookup("eps", &info.backend);
info.debug = 0;
info.width_d.x = UNDEF;
info.height_d.x = UNDEF;
info.rx = UNDEF;
info.ry = UNDEF;
info.sx = UNDEF;
info.sy = UNDEF;
info.stretch = 1;
info.lmar_d.x = UNDEF;
info.rmar_d.x = UNDEF;
info.tmar_d.x = UNDEF;
info.bmar_d.x = UNDEF;
info.angle = 0;
info.paperwidth = DEFAULT_PAPERWIDTH;
info.paperheight = DEFAULT_PAPERHEIGHT;
info.tight = 0;
info.unit = 10;
info.compress = 1;
info.pslevel = 2;
info.color = 0x000000;
info.gamma = 2.2;
info.param = potrace_param_default();
if (!info.param) {
fprintf(stderr, ""POTRACE": %s\n", strerror(errno));
exit(1);
}
info.longcoding = 0;
info.outfile = NULL;
info.blacklevel = 0.5;
info.invert = 0;
info.opaque = 0;
info.grouping = 1;
info.fillcolor = 0xffffff;
info.progress = 0;
info.progress_bar = DEFAULT_PROGRESS_BAR;
while ((c = getopt_long(ac, av, shortopts, longopts, NULL)) != -1) {
switch (c) {
case 'h':
fprintf(stdout, ""POTRACE" "VERSION". Transforms bitmaps into vector graphics.\n\n");
usage(stdout);
exit(0);
break;
case 'v':
case 'V':
fprintf(stdout, ""POTRACE" "VERSION". Copyright (C) 2001-2015 Peter Selinger.\n");
fprintf(stdout, "Library version: %s\n", potrace_version());
show_defaults(stdout);
exit(0);
break;
case 'l':
fprintf(stdout, ""POTRACE" "VERSION". Copyright (C) 2001-2015 Peter Selinger.\n\n");
license(stdout);
exit(0);
break;
case 'W':
info.width_d = parse_dimension(optarg, &p);
if (*p) {
fprintf(stderr, ""POTRACE": invalid dimension -- %s\n", optarg);
exit(1);
}
break;
case 'H':
info.height_d = parse_dimension(optarg, &p);
if (*p) {
fprintf(stderr, ""POTRACE": invalid dimension -- %s\n", optarg);
exit(1);
}
break;
case 'r':
parse_dimensions(optarg, &p, &dimx, &dimy);
if (*p == 0 && dimx.d == 0 && dimy.d == 0 && dimx.x != 0.0 && dimy.x != 0.0) {
info.rx = dimx.x;
info.ry = dimy.x;
break;
}
dim = parse_dimension(optarg, &p);
if (*p == 0 && dim.d == 0 && dim.x != 0.0) {
info.rx = info.ry = dim.x;
break;
}
fprintf(stderr, ""POTRACE": invalid resolution -- %s\n", optarg);
exit(1);
break;
case 'x':
parse_dimensions(optarg, &p, &dimx, &dimy);
if (*p == 0 && dimx.d == 0 && dimy.d == 0) {
info.sx = dimx.x;
info.sy = dimy.x;
break;
}
dim = parse_dimension(optarg, &p);
if (*p == 0 && dim.d == 0) {
info.sx = info.sy = dim.x;
break;
}
fprintf(stderr, ""POTRACE": invalid scaling factor -- %s\n", optarg);
exit(1);
break;
case 'S':
info.stretch = atof(optarg);
break;
case 'M':
info.lmar_d = parse_dimension(optarg, &p);
if (*p) {
fprintf(stderr, ""POTRACE": invalid dimension -- %s\n", optarg);
exit(1);
}
info.rmar_d = info.tmar_d = info.bmar_d = info.lmar_d;
break;
case 'L':
info.lmar_d = parse_dimension(optarg, &p);
if (*p) {
fprintf(stderr, ""POTRACE": invalid dimension -- %s\n", optarg);
exit(1);
}
break;
case 'R':
info.rmar_d = parse_dimension(optarg, &p);
if (*p) {
fprintf(stderr, ""POTRACE": invalid dimension -- %s\n", optarg);
exit(1);
}
break;
case 'T':
info.tmar_d = parse_dimension(optarg, &p);
if (*p) {
fprintf(stderr, ""POTRACE": invalid dimension -- %s\n", optarg);
exit(1);
}
break;
case 'B':
info.bmar_d = parse_dimension(optarg, &p);
if (*p) {
fprintf(stderr, ""POTRACE": invalid dimension -- %s\n", optarg);
exit(1);
}
break;
case OPT_TIGHT:
info.tight = 1;
break;
case 'A':
info.angle = strtod(optarg, &p);
if (*p) {
fprintf(stderr, ""POTRACE": invalid angle -- %s\n", optarg);
exit(1);
}
break;
case 'P':
matches = 0;
bestmatch = 0;
for (i=0; pageformat[i].name!=NULL; i++) {
if (strcasecmp(pageformat[i].name, optarg)==0) {
matches = 1;
bestmatch = i;
break;
} else if (strncasecmp(pageformat[i].name, optarg, strlen(optarg))==0) {
/* don't allow partial match on "10x14" */
if (optarg[0] != '1') {
matches++;
bestmatch = i;
}
}
}
if (matches == 1) {
info.paperwidth = pageformat[bestmatch].w;
info.paperheight = pageformat[bestmatch].h;
break;
}
parse_dimensions(optarg, &p, &dimx, &dimy);
if (*p == 0) {
info.paperwidth = (int)rint(double_of_dim(dimx, DEFAULT_DIM));
info.paperheight = (int)rint(double_of_dim(dimy, DEFAULT_DIM));
break;
}
if (matches == 0) {
fprintf(stderr, ""POTRACE": unrecognized page format -- %s\n", optarg);
} else {
fprintf(stderr, ""POTRACE": ambiguous page format -- %s\n", optarg);
}
j = fprintf(stderr, "Use one of: ");
for (i=0; pageformat[i].name!=NULL; i++) {
if (j + strlen(pageformat[i].name) > 75) {
fprintf(stderr, "\n");
j = 0;
}
j += fprintf(stderr, "%s, ", pageformat[i].name);
}
fprintf(stderr, "or specify <dim>x<dim>.\n");
exit(1);
break;
case 't':
info.param->turdsize = atoi(optarg);
break;
case 'u':
info.unit = strtod(optarg, &p);
if (*p) {
fprintf(stderr, ""POTRACE": invalid unit -- %s\n", optarg);
exit(1);
}
break;
case 'c':
info.pslevel = 2;
info.compress = 0;
break;
case '2':
info.pslevel = 2;
info.compress = 1;
break;
case '3':
#ifdef HAVE_ZLIB
info.pslevel = 3;
info.compress = 1;
#else
fprintf(stderr, ""POTRACE": option -3 not supported, using -2 instead.\n");
fflush(stderr);
info.pslevel = 2;
info.compress = 1;
#endif
break;
case 'e':
backend_lookup("eps", &info.backend);
break;
case 'p':
backend_lookup("postscript", &info.backend);
break;
case 's':
backend_lookup("svg", &info.backend);
break;
case 'g':
backend_lookup("pgm", &info.backend);
break;
case 'b':
r = backend_lookup(optarg, &info.backend);
if (r==1 || r==2) {
if (r==1) {
fprintf(stderr, ""POTRACE": unrecognized backend -- %s\n", optarg);
} else {
fprintf(stderr, ""POTRACE": ambiguous backend -- %s\n", optarg);
}
j = fprintf(stderr, "Use one of: ");
backend_list(stderr, j, 70);
fprintf(stderr, ".\n");
exit(1);
}
break;
case 'd':
info.debug = atoi(optarg);
break;
case 'C':
info.color = parse_color(optarg);
if (info.color == -1) {
fprintf(stderr, ""POTRACE": invalid color -- %s\n", optarg);
exit(1);
}
break;
case OPT_FILLCOLOR:
info.fillcolor = parse_color(optarg);
if (info.fillcolor == -1) {
fprintf(stderr, ""POTRACE": invalid color -- %s\n", optarg);
exit(1);
}
info.opaque = 1;
break;
case 'z':
matches = 0;
bestmatch = 0;
for (i=0; turnpolicy[i].name!=NULL; i++) {
if (strcasecmp(turnpolicy[i].name, optarg)==0) {
matches = 1;
bestmatch = i;
break;
} else if (strncasecmp(turnpolicy[i].name, optarg, strlen(optarg))==0) {
matches++;
bestmatch = i;
}
}
if (matches == 1) {
info.param->turnpolicy = turnpolicy[bestmatch].n;
break;
}
if (matches == 0) {
fprintf(stderr, ""POTRACE": unrecognized turnpolicy -- %s\n", optarg);
} else {
fprintf(stderr, ""POTRACE": ambiguous turnpolicy -- %s\n", optarg);
}
j = fprintf(stderr, "Use one of: ");
for (i=0; turnpolicy[i].name!=NULL; i++) {
if (j + strlen(turnpolicy[i].name) > 75) {
fprintf(stderr, "\n");
j = 0;
}
j += fprintf(stderr, "%s%s", turnpolicy[i].name, turnpolicy[i+1].name ? ", " : "");
}
fprintf(stderr, ".\n");
exit(1);
break;
case 'G':
info.gamma = atof(optarg);
break;
case 'n':
info.param->opticurve = 0;
break;
case 'q':
info.longcoding = 1;
break;
case 'a':
info.param->alphamax = strtod(optarg, &p);
if (*p) {
fprintf(stderr, ""POTRACE": invalid alphamax -- %s\n", optarg);
exit(1);
}
break;
case 'O':
info.param->opttolerance = strtod(optarg, &p);
if (*p) {
fprintf(stderr, ""POTRACE": invalid opttolerance -- %s\n", optarg);
exit(1);
}
break;
case 'o':
free(info.outfile);
info.outfile = strdup(optarg);
if (!info.outfile) {
fprintf(stderr, ""POTRACE": %s\n", strerror(errno));
exit(2);
}
break;
case 'k':
info.blacklevel = strtod(optarg, &p);
if (*p) {
fprintf(stderr, ""POTRACE": invalid blacklevel -- %s\n", optarg);
exit(1);
}
break;
case 'i':
info.invert = 1;
break;
case OPT_OPAQUE:
info.opaque = 1;
break;
case OPT_GROUP:
info.grouping = 2;
break;
case OPT_FLAT:
info.grouping = 0;
break;
case OPT_PROGRESS:
info.progress = 1;
break;
case OPT_TTY:
if (strcmp(optarg, "dumb") == 0) {
info.progress_bar = progress_bar_simplified;
} else if (strcmp(optarg, "vt100") == 0) {
info.progress_bar = progress_bar_vt100;
} else {
fprintf(stderr, ""POTRACE": invalid tty mode -- %s. Try --help for more info\n", optarg);
exit(1);
}
break;
case '?':
fprintf(stderr, "Try --help for more info\n");
exit(1);
break;
default:
fprintf(stderr, ""POTRACE": Unimplemented option -- %c\n", c);
exit(1);
}
}
info.infiles = &av[optind];
info.infilecount = ac-optind;
info.some_infiles = info.infilecount ? 1 : 0;
/* if "--" was used, even an empty list of filenames is considered
"some" filenames. */
if (strcmp(av[optind-1], "--") == 0) {
info.some_infiles = 1;
}
}
