Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx> writes:
> wildmatch returns non-zero if matched, zero otherwise. This patch
> makes it return zero if matches, non-zero otherwise, like fnmatch().
>
> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
> ---
OK, so ABORT cases where the patterns are either broken or impossible
to match are also taken as not-matching, which sounds like the right
thing to do.
> test-wildmatch.c | 4 ++--
> wildmatch.c | 21 ++++++++++++---------
> 2 files changed, 14 insertions(+), 11 deletions(-)
>
> diff --git a/test-wildmatch.c b/test-wildmatch.c
> index ac56420..77014e9 100644
> --- a/test-wildmatch.c
> +++ b/test-wildmatch.c
> @@ -4,9 +4,9 @@
> int main(int argc, char **argv)
> {
> if (!strcmp(argv[1], "wildmatch"))
> - return wildmatch(argv[3], argv[2]) ? 0 : 1;
> + return !!wildmatch(argv[3], argv[2]);
> else if (!strcmp(argv[1], "iwildmatch"))
> - return iwildmatch(argv[3], argv[2]) ? 0 : 1;
> + return !!iwildmatch(argv[3], argv[2]);
> else if (!strcmp(argv[1], "fnmatch"))
> return !!fnmatch(argv[3], argv[2], FNM_PATHNAME);
> else
> diff --git a/wildmatch.c b/wildmatch.c
> index d0b906a..e3ac6cc 100644
> --- a/wildmatch.c
> +++ b/wildmatch.c
> @@ -20,6 +20,9 @@ typedef unsigned char uchar;
>
> #define FALSE 0
> #define TRUE 1
> +
> +#define NOMATCH 1
> +#define MATCH 0
> #define ABORT_ALL -1
> #define ABORT_TO_STARSTAR -2
>
> @@ -78,12 +81,12 @@ static int dowild(const uchar *p, const uchar *text)
> /* FALLTHROUGH */
> default:
> if (t_ch != p_ch)
> - return FALSE;
> + return NOMATCH;
> continue;
> case '?':
> /* Match anything but '/'. */
> if (t_ch == '/')
> - return FALSE;
> + return NOMATCH;
> continue;
> case '*':
> if (*++p == '*') {
> @@ -96,14 +99,14 @@ static int dowild(const uchar *p, const uchar *text)
> * only if there are no more slash characters. */
> if (!special) {
> if (strchr((char*)text, '/') != NULL)
> - return FALSE;
> + return NOMATCH;
> }
> - return TRUE;
> + return MATCH;
> }
> while (1) {
> if (t_ch == '\0')
> break;
> - if ((matched = dowild(p, text)) != FALSE) {
> + if ((matched = dowild(p, text)) != NOMATCH) {
> if (!special || matched != ABORT_TO_STARSTAR)
> return matched;
> } else if (!special && t_ch == '/')
> @@ -202,18 +205,18 @@ static int dowild(const uchar *p, const uchar *text)
> matched = TRUE;
> } while (prev_ch = p_ch, (p_ch = *++p) != ']');
> if (matched == special || t_ch == '/')
> - return FALSE;
> + return NOMATCH;
> continue;
> }
> }
>
> - return *text ? FALSE : TRUE;
> + return *text ? NOMATCH : MATCH;
> }
>
> /* Match the "pattern" against the "text" string. */
> int wildmatch(const char *pattern, const char *text)
> {
> - return dowild((const uchar*)pattern, (const uchar*)text) == TRUE;
> + return dowild((const uchar*)pattern, (const uchar*)text);
> }
>
> /* Match the "pattern" against the forced-to-lower-case "text" string. */
> @@ -221,7 +224,7 @@ int iwildmatch(const char *pattern, const char *text)
> {
> int ret;
> force_lower_case = 1;
> - ret = dowild((const uchar*)pattern, (const uchar*)text) == TRUE;
> + ret = dowild((const uchar*)pattern, (const uchar*)text);
> force_lower_case = 0;
> return ret;
> }
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