diff options
Diffstat (limited to 'parse-options.c')
| -rw-r--r-- | parse-options.c | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/parse-options.c b/parse-options.c index cc09c98..15b32f7 100644 --- a/parse-options.c +++ b/parse-options.c @@ -119,8 +119,8 @@ static int parse_long_opt(struct optparse_t *p, const char *arg, const struct option *options) { const char *arg_end = strchr(arg, '='); - const struct option *abbrev_option = NULL; - int abbrev_flags = 0; + const struct option *abbrev_option = NULL, *ambiguous_option = NULL; + int abbrev_flags = 0, ambiguous_flags = 0; if (!arg_end) arg_end = arg + strlen(arg); @@ -137,16 +137,16 @@ static int parse_long_opt(struct optparse_t *p, const char *arg, /* abbreviated? */ if (!strncmp(options->long_name, arg, arg_end - arg)) { is_abbreviated: - if (abbrev_option) - return error("Ambiguous option: %s " - "(could be --%s%s or --%s%s)", - arg, - (flags & OPT_UNSET) ? - "no-" : "", - options->long_name, - (abbrev_flags & OPT_UNSET) ? - "no-" : "", - abbrev_option->long_name); + if (abbrev_option) { + /* + * If this is abbreviated, it is + * ambiguous. So when there is no + * exact match later, we need to + * error out. + */ + ambiguous_option = abbrev_option; + ambiguous_flags = abbrev_flags; + } if (!(flags & OPT_UNSET) && *arg_end) p->opt = arg_end + 1; abbrev_option = options; @@ -176,6 +176,15 @@ is_abbreviated: } return get_value(p, options, flags); } + + if (ambiguous_option) + return error("Ambiguous option: %s " + "(could be --%s%s or --%s%s)", + arg, + (ambiguous_flags & OPT_UNSET) ? "no-" : "", + ambiguous_option->long_name, + (abbrev_flags & OPT_UNSET) ? "no-" : "", + abbrev_option->long_name); if (abbrev_option) return get_value(p, abbrev_option, abbrev_flags); return error("unknown option `%s'", arg); |