static int abbrev = 7;
static int verbose = 0, dry_run = 0, quiet = 0;
static char *string = NULL;
+static char *file = NULL;
int length_callback(const struct option *opt, const char *arg, int unset)
{
if (unset)
return 1; /* do not support unset */
- *(unsigned long *)opt->value = strlen(arg);
+ *(int *)opt->value = strlen(arg);
+ return 0;
+}
+
+int number_callback(const struct option *opt, const char *arg, int unset)
+{
+ *(int *)opt->value = strtol(arg, NULL, 10);
return 0;
}
int main(int argc, const char **argv)
{
+ const char *prefix = "prefix/";
const char *usage[] = {
"test-parse-options <options>",
NULL
OPT_BOOLEAN('b', "boolean", &boolean, "get a boolean"),
OPT_BIT('4', "or4", &boolean,
"bitwise-or boolean with ...0100", 4),
+ OPT_NEGBIT(0, "neg-or4", &boolean, "same as --no-or4", 4),
OPT_GROUP(""),
OPT_INTEGER('i', "integer", &integer, "get a integer"),
OPT_INTEGER('j', NULL, &integer, "get a integer, too"),
OPT_DATE('t', NULL, ×tamp, "get timestamp of <time>"),
OPT_CALLBACK('L', "length", &integer, "str",
"get length of <str>", length_callback),
+ OPT_FILENAME('F', "file", &file, "set file to <FILE>"),
OPT_GROUP("String options"),
OPT_STRING('s', "string", &string, "string", "get a string"),
OPT_STRING(0, "string2", &string, "str", "get another string"),
"set string to default", (unsigned long)"default"),
OPT_GROUP("Magic arguments"),
OPT_ARGUMENT("quux", "means --quux"),
+ OPT_NUMBER_CALLBACK(&integer, "set integer to NUM",
+ number_callback),
+ { OPTION_BOOLEAN, '+', NULL, &boolean, NULL, "same as -b",
+ PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH },
OPT_GROUP("Standard options"),
OPT__ABBREV(&abbrev),
OPT__VERBOSE(&verbose),
};
int i;
- argc = parse_options(argc, argv, options, usage, 0);
+ argc = parse_options(argc, argv, prefix, options, usage, 0);
printf("boolean: %d\n", boolean);
printf("integer: %u\n", integer);
printf("verbose: %d\n", verbose);
printf("quiet: %s\n", quiet ? "yes" : "no");
printf("dry run: %s\n", dry_run ? "yes" : "no");
+ printf("file: %s\n", file ? file : "(not set)");
for (i = 0; i < argc; i++)
printf("arg %02d: %s\n", i, argv[i]);