int main(int argc, char **argv) {
bool continuous_mode = false;
const char *short_opts = "+c";
const struct option long_opts[] = {{"continuous", no_argument, NULL, 'd'}, {NULL, 0, NULL, 0}};
int opt;
while ((opt = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
switch (opt) {
case 0: {
fprintf(stderr, "getopt_long() unexpectedly returned zero\n");
exit(1);
}
case 'c': {
continuous_mode = true;
break;
}
default: {
// We assume getopt_long() has already emitted a diagnostic msg.
exit(1);
}
}
}
argc -= optind;
if (argc != 0) {
fprintf(stderr, "Expected no CLI arguments, got %d\n", argc);
return 1;
}
setup_and_process_keys(continuous_mode);
return 0;
}
int main(int argc, char **argv) {
program_name = L"fish_key_reader";
bool continuous_mode = false;
if (!parse_flags(argc, argv, &continuous_mode)) return 1;
if (!isatty(STDIN_FILENO)) {
std::fwprintf(stderr, L"Stdin must be attached to a tty.\n");
return 1;
}
setup_and_process_keys(continuous_mode);
return 0;
}
int main(int argc, char **argv) {
program_name = L"fish_key_reader";
bool continuous_mode = false;
const char *short_opts = "+cd:D:";
const struct option long_opts[] = {{"continuous", no_argument, NULL, 'c'},
{"debug-level", required_argument, NULL, 'd'},
{"debug-stack-frames", required_argument, NULL, 'D'},
{NULL, 0, NULL, 0}};
int opt;
while ((opt = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
switch (opt) {
case 0: {
fprintf(stderr, "getopt_long() unexpectedly returned zero\n");
exit(1);
}
case 'c': {
continuous_mode = true;
break;
}
case 'd': {
char *end;
long tmp;
errno = 0;
tmp = strtol(optarg, &end, 10);
if (tmp >= 0 && tmp <= 10 && !*end && !errno) {
debug_level = (int)tmp;
} else {
fwprintf(stderr, _(L"Invalid value '%s' for debug-level flag"), optarg);
exit(1);
}
break;
}
case 'D': {
char *end;
long tmp;
errno = 0;
tmp = strtol(optarg, &end, 10);
if (tmp > 0 && tmp <= 128 && !*end && !errno) {
debug_stack_frames = (int)tmp;
} else {
fwprintf(stderr, _(L"Invalid value '%s' for debug-stack-frames flag"), optarg);
exit(1);
}
break;
}
default: {
// We assume getopt_long() has already emitted a diagnostic msg.
exit(1);
}
}
}
argc -= optind;
if (argc != 0) {
fprintf(stderr, "Expected no arguments, got %d\n", argc);
return 1;
}
if (!isatty(STDIN_FILENO) || !isatty(STDOUT_FILENO)) {
fprintf(stderr, "Stdin and stdout must be attached to a tty, redirection not allowed.\n");
return 1;
}
setup_and_process_keys(continuous_mode);
return 0;
}
