OPTION_END,
OPTION_ARGUMENT,
OPTION_GROUP,
+ OPTION_NUMBER,
/* options with no arguments */
OPTION_BIT,
+ OPTION_NEGBIT,
OPTION_BOOLEAN, /* _INCR would have been a better name */
OPTION_SET_INT,
OPTION_SET_PTR,
OPTION_STRING,
OPTION_INTEGER,
OPTION_CALLBACK,
+ OPTION_FILENAME
};
enum parse_opt_flags {
PARSE_OPT_NONEG = 4,
PARSE_OPT_HIDDEN = 8,
PARSE_OPT_LASTARG_DEFAULT = 16,
+ PARSE_OPT_NODASH = 32,
+ PARSE_OPT_LITERAL_ARGHELP = 64,
+ PARSE_OPT_NEGHELP = 128,
};
struct option;
* `flags`::
* mask of parse_opt_option_flags.
* PARSE_OPT_OPTARG: says that the argument is optional (not for BOOLEANs)
- * PARSE_OPT_NOARG: says that this option takes no argument, for CALLBACKs
+ * PARSE_OPT_NOARG: says that this option takes no argument
* PARSE_OPT_NONEG: says that this option cannot be negated
- * PARSE_OPT_HIDDEN this option is skipped in the default usage, showed in
- * the long one.
+ * PARSE_OPT_HIDDEN: this option is skipped in the default usage, and
+ * shown only in the full usage.
+ * PARSE_OPT_LASTARG_DEFAULT: says that this option will take the default
+ * value if no argument is given when the option
+ * is last on the command line. If the option is
+ * not last it will require an argument.
+ * Should not be used with PARSE_OPT_OPTARG.
+ * PARSE_OPT_NODASH: this option doesn't start with a dash.
+ * PARSE_OPT_LITERAL_ARGHELP: says that argh shouldn't be enclosed in brackets
+ * (i.e. '<argh>') in the help message.
+ * Useful for options with multiple parameters.
+ * PARSE_OPT_NEGHELP: says that the long option should always be shown with
+ * the --no prefix in the usage message. Sometimes
+ * useful for users of OPTION_NEGBIT.
*
* `callback`::
* pointer to the callback to use for OPTION_CALLBACK.
};
#define OPT_END() { OPTION_END }
-#define OPT_ARGUMENT(l, h) { OPTION_ARGUMENT, 0, (l), NULL, NULL, (h) }
+#define OPT_ARGUMENT(l, h) { OPTION_ARGUMENT, 0, (l), NULL, NULL, \
+ (h), PARSE_OPT_NOARG}
#define OPT_GROUP(h) { OPTION_GROUP, 0, NULL, NULL, NULL, (h) }
-#define OPT_BIT(s, l, v, h, b) { OPTION_BIT, (s), (l), (v), NULL, (h), 0, NULL, (b) }
-#define OPT_BOOLEAN(s, l, v, h) { OPTION_BOOLEAN, (s), (l), (v), NULL, (h) }
-#define OPT_SET_INT(s, l, v, h, i) { OPTION_SET_INT, (s), (l), (v), NULL, (h), 0, NULL, (i) }
-#define OPT_SET_PTR(s, l, v, h, p) { OPTION_SET_PTR, (s), (l), (v), NULL, (h), 0, NULL, (p) }
-#define OPT_INTEGER(s, l, v, h) { OPTION_INTEGER, (s), (l), (v), NULL, (h) }
+#define OPT_BIT(s, l, v, h, b) { OPTION_BIT, (s), (l), (v), NULL, (h), \
+ PARSE_OPT_NOARG, NULL, (b) }
+#define OPT_NEGBIT(s, l, v, h, b) { OPTION_NEGBIT, (s), (l), (v), NULL, \
+ (h), PARSE_OPT_NOARG, NULL, (b) }
+#define OPT_BOOLEAN(s, l, v, h) { OPTION_BOOLEAN, (s), (l), (v), NULL, \
+ (h), PARSE_OPT_NOARG }
+#define OPT_SET_INT(s, l, v, h, i) { OPTION_SET_INT, (s), (l), (v), NULL, \
+ (h), PARSE_OPT_NOARG, NULL, (i) }
+#define OPT_SET_PTR(s, l, v, h, p) { OPTION_SET_PTR, (s), (l), (v), NULL, \
+ (h), PARSE_OPT_NOARG, NULL, (p) }
+#define OPT_INTEGER(s, l, v, h) { OPTION_INTEGER, (s), (l), (v), "n", (h) }
#define OPT_STRING(s, l, v, a, h) { OPTION_STRING, (s), (l), (v), (a), (h) }
#define OPT_DATE(s, l, v, h) \
{ OPTION_CALLBACK, (s), (l), (v), "time",(h), 0, \
parse_opt_approxidate_cb }
#define OPT_CALLBACK(s, l, v, a, h, f) \
{ OPTION_CALLBACK, (s), (l), (v), (a), (h), 0, (f) }
+#define OPT_NUMBER_CALLBACK(v, h, f) \
+ { OPTION_NUMBER, 0, NULL, (v), NULL, (h), \
+ PARSE_OPT_NOARG | PARSE_OPT_NONEG, (f) }
+#define OPT_FILENAME(s, l, v, h) { OPTION_FILENAME, (s), (l), (v), \
+ "FILE", (h) }
/* parse_options() will filter out the processed options and leave the
* non-option arguments in argv[].
* Returns the number of arguments left in argv[].
*/
-extern int parse_options(int argc, const char **argv,
+extern int parse_options(int argc, const char **argv, const char *prefix,
const struct option *options,
const char * const usagestr[], int flags);
int argc, cpidx;
const char *opt;
int flags;
+ const char *prefix;
};
extern int parse_options_usage(const char * const *usagestr,
const struct option *opts);
extern void parse_options_start(struct parse_opt_ctx_t *ctx,
- int argc, const char **argv, int flags);
+ int argc, const char **argv, const char *prefix,
+ int flags);
extern int parse_options_step(struct parse_opt_ctx_t *ctx,
const struct option *options,
"use <n> digits to display SHA-1s", \
PARSE_OPT_OPTARG, &parse_opt_abbrev_cb, 0 }
-extern const char *parse_options_fix_filename(const char *prefix, const char *file);
-
#endif