parse-options: allow git commands to invent new option types

[thirdparty/git.git] / parse-options.h

diff --git a/parse-options.h b/parse-options.h
index 7435cdbf1d94378cf1c3408ae17cb610165a00ba..470bb33298bbeba6ae650f926d390233d0ee8d9f 100644 (file)
--- a/parse-options.h
+++ b/parse-options.h
@@ -17,6 +17,7 @@ enum parse_opt_type {
        OPTION_STRING,
        OPTION_INTEGER,
        OPTION_CALLBACK,
+       OPTION_LOWLEVEL_CALLBACK,
        OPTION_FILENAME
 };
 
@@ -43,6 +44,10 @@ enum parse_opt_option_flags {
 struct option;
 typedef int parse_opt_cb(const struct option *, const char *arg, int unset);
 
+struct parse_opt_ctx_t;
+typedef int parse_opt_ll_cb(struct parse_opt_ctx_t *ctx,
+                               const struct option *opt, int unset);
+
 /*
  * `type`::
  *   holds the type of the option, you must have an OPTION_END last in your
@@ -69,7 +74,7 @@ typedef int parse_opt_cb(const struct option *, const char *arg, int unset);
  * `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
+ *   PARSE_OPT_NOARG: says that this option does not take an argument
  *   PARSE_OPT_NONEG: says that this option cannot be negated
  *   PARSE_OPT_HIDDEN: this option is skipped in the default usage, and
  *                     shown only in the full usage.
@@ -87,7 +92,8 @@ typedef int parse_opt_cb(const struct option *, const char *arg, int unset);
  *                             useful for users of OPTION_NEGBIT.
  *
  * `callback`::
- *   pointer to the callback to use for OPTION_CALLBACK.
+ *   pointer to the callback to use for OPTION_CALLBACK or
+ *   OPTION_LOWLEVEL_CALLBACK.
  *
  * `defval`::
  *   default value to fill (*->value) with for PARSE_OPT_OPTARG.
@@ -180,7 +186,7 @@ struct parse_opt_ctx_t {
 
 extern void parse_options_start(struct parse_opt_ctx_t *ctx,
                                int argc, const char **argv, const char *prefix,
-                               int flags);
+                               const struct option *options, int flags);
 
 extern int parse_options_step(struct parse_opt_ctx_t *ctx,
                              const struct option *options,