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Add new option --seed

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Nor Khasyatillah 2022-06-06 18:10:53 +07:00 • committed by jaseg
parent 2a23642da7
commit 37bb84e297
1 changed files with 13 additions and 1 deletions
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14
lolcat.c
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@ -41,6 +41,7 @@ static char helpstr[] = "\n"
" --no-force-locale, -l: Use encoding from system locale instead of\n"
" assuming UTF-8\n"
" --random, -r: Random colors\n"
" --seed <d>, -s <d>: Random colors based on given seed, implies --random\n"
" --color_offset <d>, -o <d>: Start with a different color\n"
" --24bit, -b: Output in 24-bit \"true\" RGB mode (slower and\n"
" not supported by all terminals)\n"
@ -104,6 +105,7 @@ int main(int argc, char** argv)
int colors = isatty(STDOUT_FILENO);
int force_locale = 1;
int random = 0;
unsigned int seed = time(NULL);
int start_color = 0;
int rgb = 0;
int ansi16 = 0;
@ -137,6 +139,15 @@ int main(int argc, char** argv)
force_locale = 0;
} else if (!strcmp(argv[i], "-r") || !strcmp(argv[i], "--random")) {
random = 1;
} else if (!strcmp(argv[i], "-S") || !strcmp(argv[i], "--seed")) {
random = 1;
if ((++i) < argc) {
seed = strtoul(argv[i], &endptr, 10);
if (*endptr)
usage();
} else {
usage();
}
} else if (!strcmp(argv[i], "-o") || !strcmp(argv[i], "--color_offset")) {
if ((++i) < argc) {
start_color = strtod(argv[i], &endptr);
@ -165,9 +176,10 @@ int main(int argc, char** argv)
int rand_offset = 0;
if (random) {
srand(time(NULL));
srand(seed);
rand_offset = rand();
}
char** inputs = argv + i;
char** inputs_end = argv + argc;
if (inputs == inputs_end) {