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New option: -n, start at given picture

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This commit is contained in:
Bert
2011-05-25 09:23:23 +02:00
parent 00e6cd2bd1
commit 2252a0148d
6 changed files with 27 additions and 9 deletions
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17
options.c
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@ -31,7 +31,7 @@ options_t _options;
const options_t *options = (const options_t*) &_options;
void print_usage() {
printf("usage: sxiv [-cdFfhpqrstvZ] [-g GEOMETRY] [-z ZOOM] FILES...\n");
printf("usage: sxiv [-cdFfhpqrstvZ] [-g GEOMETRY] [-n NUM] [-z ZOOM] FILES...\n");
}
void print_version() {
@ -40,7 +40,9 @@ void print_version() {
void parse_options(int argc, char **argv) {
float z;
int opt;
int n, opt;
_options.startnum = 0;
_options.scalemode = SCALE_MODE;
_options.zoom = 1.0;
@ -55,7 +57,7 @@ void parse_options(int argc, char **argv) {
_options.clean_cache = 0;
_options.recursive = 0;
while ((opt = getopt(argc, argv, "cdFfg:hpqrstvZz:")) != -1) {
while ((opt = getopt(argc, argv, "cdFfg:hn:pqrstvZz:")) != -1) {
switch (opt) {
case '?':
print_usage();
@ -78,6 +80,15 @@ void parse_options(int argc, char **argv) {
case 'h':
print_usage();
exit(0);
case 'n':
if (!sscanf(optarg, "%d", &n) || n < 1) {
fprintf(stderr, "sxiv: invalid argument for option -n: %s\n",
optarg);
exit(1);
} else {
_options.startnum = n - 1;
}
break;
case 'p':
_options.aa = 0;
break;