fix doc typos

[git.git] / parse-options.c

diff --git a/parse-options.c b/parse-options.c
index d3e608ac45e2a0c6accb9d27ed8d407619cb70d2..d9562ba5047ff1c9994755a4dbec5162b551c788 100644 (file)
--- a/parse-options.c
+++ b/parse-options.c
@@ -89,7 +89,7 @@ static int get_value(struct optparse_t *p,
                        *(const char **)opt->value = NULL;
                        return 0;
                }
-               if (opt->flags & PARSE_OPT_OPTARG && (!arg || *arg == '-')) {
+               if (opt->flags & PARSE_OPT_OPTARG && !p->opt) {
                        *(const char **)opt->value = (const char *)opt->defval;
                        return 0;
                }
@@ -103,7 +103,7 @@ static int get_value(struct optparse_t *p,
                        return (*opt->callback)(opt, NULL, 1);
                if (opt->flags & PARSE_OPT_NOARG)
                        return (*opt->callback)(opt, NULL, 0);
-               if (opt->flags & PARSE_OPT_OPTARG && (!arg || *arg == '-'))
+               if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
                        return (*opt->callback)(opt, NULL, 0);
                if (!arg)
                        return opterror(opt, "requires a value", flags);
@@ -114,7 +114,7 @@ static int get_value(struct optparse_t *p,
                        *(int *)opt->value = 0;
                        return 0;
                }
-               if (opt->flags & PARSE_OPT_OPTARG && (!arg || !isdigit(*arg))) {
+               if (opt->flags & PARSE_OPT_OPTARG && !p->opt) {
                        *(int *)opt->value = opt->defval;
                        return 0;
                }
@@ -216,6 +216,29 @@ is_abbreviated:
        return error("unknown option `%s'", arg);
 }
 
+void check_typos(const char *arg, const struct option *options)
+{
+       if (strlen(arg) < 3)
+               return;
+
+       if (!prefixcmp(arg, "no-")) {
+               error ("did you mean `--%s` (with two dashes ?)", arg);
+               exit(129);
+       }
+
+       for (; options->type != OPTION_END; options++) {
+               if (!options->long_name)
+                       continue;
+               if (!prefixcmp(options->long_name, arg)) {
+                       error ("did you mean `--%s` (with two dashes ?)", arg);
+                       exit(129);
+               }
+       }
+}
+
+static NORETURN void usage_with_options_internal(const char * const *,
+                                                 const struct option *, int);
+
 int parse_options(int argc, const char **argv, const struct option *options,
                   const char * const usagestr[], int flags)
 {
@@ -232,12 +255,18 @@ int parse_options(int argc, const char **argv, const struct option *options,
 
                if (arg[1] != '-') {
                        args.opt = arg + 1;
-                       do {
+                       if (*args.opt == 'h')
+                               usage_with_options(usagestr, options);
+                       if (parse_short_opt(&args, options) < 0)
+                               usage_with_options(usagestr, options);
+                       if (args.opt)
+                               check_typos(arg + 1, options);
+                       while (args.opt) {
                                if (*args.opt == 'h')
                                        usage_with_options(usagestr, options);
                                if (parse_short_opt(&args, options) < 0)
                                        usage_with_options(usagestr, options);
-                       } while (args.opt);
+                       }
                        continue;
                }
 
@@ -249,6 +278,8 @@ int parse_options(int argc, const char **argv, const struct option *options,
                        break;
                }
 
+               if (!strcmp(arg + 2, "help-all"))
+                       usage_with_options_internal(usagestr, options, 1);
                if (!strcmp(arg + 2, "help"))
                        usage_with_options(usagestr, options);
                if (parse_long_opt(&args, arg + 2, options))
@@ -263,8 +294,8 @@ int parse_options(int argc, const char **argv, const struct option *options,
 #define USAGE_OPTS_WIDTH 24
 #define USAGE_GAP         2
 
-void usage_with_options(const char * const *usagestr,
-                        const struct option *opts)
+void usage_with_options_internal(const char * const *usagestr,
+                                 const struct option *opts, int full)
 {
        fprintf(stderr, "usage: %s\n", *usagestr++);
        while (*usagestr && **usagestr)
@@ -285,6 +316,8 @@ void usage_with_options(const char * const *usagestr,
                                fprintf(stderr, "%s\n", opts->help);
                        continue;
                }
+               if (!full && (opts->flags & PARSE_OPT_HIDDEN))
+                       continue;
 
                pos = fprintf(stderr, "    ");
                if (opts->short_name)
@@ -335,6 +368,12 @@ void usage_with_options(const char * const *usagestr,
        exit(129);
 }
 
+void usage_with_options(const char * const *usagestr,
+                        const struct option *opts)
+{
+       usage_with_options_internal(usagestr, opts, 0);
+}
+
 /*----- some often used options -----*/
 #include "cache.h"