diff options
| -rw-r--r-- | parse-options.h | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/parse-options.h b/parse-options.h index 3a470e5..65bce6e 100644 --- a/parse-options.h +++ b/parse-options.h @@ -22,6 +22,41 @@ enum parse_opt_option_flags { struct option; typedef int parse_opt_cb(const struct option *, const char *arg, int unset); +/* + * `type`:: + * holds the type of the option, you must have an OPTION_END last in your + * array. + * + * `short_name`:: + * the character to use as a short option name, '\0' if none. + * + * `long_name`:: + * the long option name, without the leading dashes, NULL if none. + * + * `value`:: + * stores pointers to the values to be filled. + * + * `argh`:: + * token to explain the kind of argument this option wants. Keep it + * homogenous across the repository. + * + * `help`:: + * the short help associated to what the option does. + * Must never be NULL (except for OPTION_END). + * OPTION_GROUP uses this pointer to store the group header. + * + * `flags`:: + * mask of parse_opt_option_flags. + * PARSE_OPT_OPTARG: says that the argument is optionnal (not for BOOLEANs) + * PARSE_OPT_NOARG: says that this option takes no argument, for CALLBACKs + * + * `callback`:: + * pointer to the callback to use for OPTION_CALLBACK. + * + * `defval`:: + * default value to fill (*->value) with for PARSE_OPT_OPTARG. + * CALLBACKS can use it like they want. + */ struct option { enum parse_opt_type type; int short_name; @@ -32,8 +67,6 @@ struct option { int flags; parse_opt_cb *callback; - /* holds default value for PARSE_OPT_OPTARG, - though callbacks can use it like they want */ intptr_t defval; }; |