diff options
Diffstat (limited to 'parse-options.h')
-rw-r--r-- | parse-options.h | 90 |
1 files changed, 70 insertions, 20 deletions
diff --git a/parse-options.h b/parse-options.h index 5199950c00..9429f7e361 100644 --- a/parse-options.h +++ b/parse-options.h @@ -6,8 +6,10 @@ enum parse_opt_type { 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, @@ -15,12 +17,15 @@ enum parse_opt_type { OPTION_STRING, OPTION_INTEGER, OPTION_CALLBACK, + OPTION_FILENAME }; enum parse_opt_flags { PARSE_OPT_KEEP_DASHDASH = 1, PARSE_OPT_STOP_AT_NON_OPTION = 2, PARSE_OPT_KEEP_ARGV0 = 4, + PARSE_OPT_KEEP_UNKNOWN = 8, + PARSE_OPT_NO_INTERNAL_HELP = 16, }; enum parse_opt_option_flags { @@ -29,6 +34,9 @@ enum parse_opt_option_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; @@ -50,7 +58,7 @@ typedef int parse_opt_cb(const struct option *, const char *arg, int unset); * * `argh`:: * token to explain the kind of argument this option wants. Keep it - * homogenous across the repository. + * homogeneous across the repository. * * `help`:: * the short help associated to what the option does. @@ -59,11 +67,23 @@ 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 optionnal (not for BOOLEANs) - * PARSE_OPT_NOARG: says that this option takes no argument, for CALLBACKs + * PARSE_OPT_OPTARG: says that the argument is optional (not for BOOLEANs) + * 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. @@ -88,32 +108,54 @@ struct option { }; #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_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 } #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) } +#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 argments in argv[]. + * 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); extern NORETURN void usage_with_options(const char * const *usagestr, const struct option *options); -/*----- incremantal advanced APIs -----*/ +extern NORETURN void usage_msg_opt(const char *msg, + const char * const *usagestr, + const struct option *options); + +/*----- incremental advanced APIs -----*/ enum { PARSE_OPT_HELP = -1, @@ -132,13 +174,12 @@ struct parse_opt_ctx_t { 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, @@ -150,15 +191,24 @@ extern int parse_options_end(struct parse_opt_ctx_t *ctx); /*----- 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__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__ABBREV(var) \ { OPTION_CALLBACK, 0, "abbrev", (var), "n", \ "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); +#define OPT__COLOR(var, h) \ + OPT_COLOR_FLAG(0, "color", (var), (h)) #endif |