grep: Add the option '--line-number'

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

diff --git a/parse-options.h b/parse-options.h
index f295a2cf858f4dbebc62e956878544ffdb7fbe58..d1b12fe979b34ac9bbf2ff637934b96f3878a53d 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
 };
 
@@ -25,7 +26,7 @@ enum parse_opt_flags {
        PARSE_OPT_STOP_AT_NON_OPTION = 2,
        PARSE_OPT_KEEP_ARGV0 = 4,
        PARSE_OPT_KEEP_UNKNOWN = 8,
-       PARSE_OPT_NO_INTERNAL_HELP = 16,
+       PARSE_OPT_NO_INTERNAL_HELP = 16
 };
 
 enum parse_opt_option_flags {
@@ -37,11 +38,16 @@ enum parse_opt_option_flags {
        PARSE_OPT_NODASH = 32,
        PARSE_OPT_LITERAL_ARGHELP = 64,
        PARSE_OPT_NEGHELP = 128,
+       PARSE_OPT_SHELL_EVAL = 256
 };
 
 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
@@ -68,7 +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.
@@ -86,7 +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.
@@ -123,6 +130,8 @@ struct option {
                                      (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_UYN(s, l, v, h)         { OPTION_CALLBACK, (s), (l), (v), NULL, \
+                                     (h), PARSE_OPT_NOARG, &parse_opt_tertiary }
 #define OPT_DATE(s, l, v, h) \
        { OPTION_CALLBACK, (s), (l), (v), "time",(h), 0, \
          parse_opt_approxidate_cb }
@@ -132,7 +141,11 @@ struct option {
        { 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) }
+                                      "file", (h) }
+#define OPT_COLOR_FLAG(s, l, v, h) \
+       { OPTION_CALLBACK, (s), (l), (v), "when", (h), PARSE_OPT_OPTARG, \
+               parse_opt_color_flag_cb, (intptr_t)"always" }
+
 
 /* parse_options() will filter out the processed options and leave the
  * non-option arguments in argv[].
@@ -154,7 +167,8 @@ extern NORETURN void usage_msg_opt(const char *msg,
 enum {
        PARSE_OPT_HELP = -1,
        PARSE_OPT_DONE,
-       PARSE_OPT_UNKNOWN,
+       PARSE_OPT_NON_OPTION,
+       PARSE_OPT_UNKNOWN
 };
 
 /*
@@ -171,12 +185,9 @@ struct parse_opt_ctx_t {
        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, 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,
@@ -184,24 +195,30 @@ extern int parse_options_step(struct parse_opt_ctx_t *ctx,
 
 extern int parse_options_end(struct parse_opt_ctx_t *ctx);
 
+extern int parse_options_concat(struct option *dst, size_t, struct option *src);
 
 /*----- some often used options -----*/
 extern int parse_opt_abbrev_cb(const struct option *, const char *, int);
 extern int parse_opt_approxidate_cb(const struct option *, const char *, int);
+extern int parse_opt_color_flag_cb(const struct option *, const char *, int);
 extern int parse_opt_verbosity_cb(const struct option *, const char *, int);
 extern int parse_opt_with_commit(const struct option *, const char *, int);
+extern int parse_opt_tertiary(const struct option *, const char *, int);
 
-#define OPT__VERBOSE(var)  OPT_BOOLEAN('v', "verbose", (var), "be verbose")
-#define OPT__QUIET(var)    OPT_BOOLEAN('q', "quiet",   (var), "be quiet")
+#define OPT__VERBOSE(var, h)  OPT_BOOLEAN('v', "verbose", (var), (h))
+#define OPT__QUIET(var, h)    OPT_BOOLEAN('q', "quiet",   (var), (h))
 #define OPT__VERBOSITY(var) \
        { OPTION_CALLBACK, 'v', "verbose", (var), NULL, "be more verbose", \
          PARSE_OPT_NOARG, &parse_opt_verbosity_cb, 0 }, \
        { OPTION_CALLBACK, 'q', "quiet", (var), NULL, "be more quiet", \
          PARSE_OPT_NOARG, &parse_opt_verbosity_cb, 0 }
-#define OPT__DRY_RUN(var)  OPT_BOOLEAN('n', "dry-run", (var), "dry run")
+#define OPT__DRY_RUN(var, h)  OPT_BOOLEAN('n', "dry-run", (var), (h))
+#define OPT__FORCE(var, h)    OPT_BOOLEAN('f', "force",   (var), (h))
 #define OPT__ABBREV(var)  \
        { OPTION_CALLBACK, 0, "abbrev", (var), "n", \
          "use <n> digits to display SHA-1s", \
          PARSE_OPT_OPTARG, &parse_opt_abbrev_cb, 0 }
+#define OPT__COLOR(var, h) \
+       OPT_COLOR_FLAG(0, "color", (var), (h))
 
 #endif