compat: add a mkstemps() compatibility function

[git.git] / parse-options.c

diff --git a/parse-options.c b/parse-options.c
index cf71bcffd2e1e9aeacb44df488b0825f09d54255..c52b8ccf59a4848be6f3f810e01029f7c6625c78 100644 (file)
--- a/parse-options.c
+++ b/parse-options.c
@@ -50,6 +50,7 @@ static int get_value(struct parse_opt_ctx_t *p,
                        /* FALLTHROUGH */
                case OPTION_BOOLEAN:
                case OPTION_BIT:
+               case OPTION_NEGBIT:
                case OPTION_SET_INT:
                case OPTION_SET_PTR:
                        return opterror(opt, "takes no value", flags);
@@ -66,6 +67,13 @@ static int get_value(struct parse_opt_ctx_t *p,
                        *(int *)opt->value |= opt->defval;
                return 0;
 
+       case OPTION_NEGBIT:
+               if (unset)
+                       *(int *)opt->value |= opt->defval;
+               else
+                       *(int *)opt->value &= ~opt->defval;
+               return 0;
+
        case OPTION_BOOLEAN:
                *(int *)opt->value = unset ? 0 : *(int *)opt->value + 1;
                return 0;
@@ -121,11 +129,33 @@ static int get_value(struct parse_opt_ctx_t *p,
 
 static int parse_short_opt(struct parse_opt_ctx_t *p, const struct option *options)
 {
+       const struct option *numopt = NULL;
+
        for (; options->type != OPTION_END; options++) {
                if (options->short_name == *p->opt) {
                        p->opt = p->opt[1] ? p->opt + 1 : NULL;
                        return get_value(p, options, OPT_SHORT);
                }
+
+               /*
+                * Handle the numerical option later, explicit one-digit
+                * options take precedence over it.
+                */
+               if (options->type == OPTION_NUMBER)
+                       numopt = options;
+       }
+       if (numopt && isdigit(*p->opt)) {
+               size_t len = 1;
+               char *arg;
+               int rc;
+
+               while (isdigit(p->opt[len]))
+                       len++;
+               arg = xmemdupz(p->opt, len);
+               p->opt = p->opt[len] ? p->opt + len : NULL;
+               rc = (*numopt->callback)(numopt, arg, 0) ? (-1) : 0;
+               free(arg);
+               return rc;
        }
        return -2;
 }
@@ -215,6 +245,25 @@ is_abbreviated:
        return -2;
 }
 
+static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg,
+                           const struct option *options)
+{
+       for (; options->type != OPTION_END; options++) {
+               if (!(options->flags & PARSE_OPT_NODASH))
+                       continue;
+               if ((options->flags & PARSE_OPT_OPTARG) ||
+                   !(options->flags & PARSE_OPT_NOARG))
+                       die("BUG: dashless options don't support arguments");
+               if (!(options->flags & PARSE_OPT_NONEG))
+                       die("BUG: dashless options don't support negation");
+               if (options->long_name)
+                       die("BUG: dashless options can't be long");
+               if (options->short_name == arg[0] && arg[1] == '\0')
+                       return get_value(p, options, OPT_SHORT);
+       }
+       return -2;
+}
+
 static void check_typos(const char *arg, const struct option *options)
 {
        if (strlen(arg) < 3)
@@ -265,6 +314,8 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
                const char *arg = ctx->argv[0];
 
                if (*arg != '-' || !arg[1]) {
+                       if (parse_nodash_opt(ctx, arg, options) == 0)
+                               continue;
                        if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION)
                                break;
                        ctx->out[ctx->cpidx++] = ctx->argv[0];
@@ -397,12 +448,18 @@ int usage_with_options_internal(const char * const *usagestr,
                        continue;
 
                pos = fprintf(stderr, "    ");
-               if (opts->short_name)
-                       pos += fprintf(stderr, "-%c", opts->short_name);
+               if (opts->short_name) {
+                       if (opts->flags & PARSE_OPT_NODASH)
+                               pos += fprintf(stderr, "%c", opts->short_name);
+                       else
+                               pos += fprintf(stderr, "-%c", opts->short_name);
+               }
                if (opts->long_name && opts->short_name)
                        pos += fprintf(stderr, ", ");
                if (opts->long_name)
                        pos += fprintf(stderr, "--%s", opts->long_name);
+               if (opts->type == OPTION_NUMBER)
+                       pos += fprintf(stderr, "-NUM");
 
                switch (opts->type) {
                case OPTION_ARGUMENT:
@@ -439,7 +496,7 @@ int usage_with_options_internal(const char * const *usagestr,
                                        pos += fprintf(stderr, " ...");
                        }
                        break;
-               default: /* OPTION_{BIT,BOOLEAN,SET_INT,SET_PTR} */
+               default: /* OPTION_{BIT,BOOLEAN,NUMBER,SET_INT,SET_PTR} */
                        break;
                }