libxbps: move xbps_pkgpattern_match to util.c and simplify.

lib/external/match.c

@@ -1,98 +0,0 @@
-/*	$NetBSD: opattern.c,v 1.5 2009/02/02 12:35:01 joerg Exp $	*/
-
-/*
- * FreeBSD install - a package for the installation and maintainance
- * of non-core utilities.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * Jordan K. Hubbard
- * 18 July 1993
- *
- * Miscellaneous string utilities.
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fnmatch.h>
-#include <ctype.h>
-#include <sys/param.h>
-
-#include "xbps_api_impl.h"
-
-/*
- * Perform glob match on "pkg" against "pattern".
- * Return 1 on match, 0 otherwise.
- */
-static int
-glob_match(const char *pattern, const char *pkg)
-{
-	return fnmatch(pattern, pkg, FNM_PERIOD) == 0;
-}
-
-/*
- * Perform simple match on "pkg" against "pattern". 
- * Return 1 on match, 0 otherwise.
- */
-static int
-simple_match(const char *pattern, const char *pkg)
-{
-	return strcmp(pattern, pkg) == 0;
-}
-
-/*
- * Performs a fast check if pattern can ever match pkg.
- * Returns 1 if a match is possible and 0 otherwise.
- */
-static int
-quick_pkg_match(const char *pattern, const char *pkg)
-{
-#define simple(x) (isalnum((unsigned char)(x)) || (x) == '-')
-	if (!simple(pattern[0]))
-		return 1;
-	if (pattern[0] != pkg[0])
-		return 0;
-
-	if (!simple(pattern[1]))
-		return 1;
-	if (pattern[1] != pkg[1])
-		return 0;
-	return 1;
-#undef simple
-}
-
-/*
- * Match pkg against pattern, return 1 if matching, 0 otherwise or -1 on error.
- */
-int
-xbps_pkgpattern_match(const char *pkg, const char *pattern)
-{
-	if (!quick_pkg_match(pattern, pkg))
-		return 0;
-
-	if (strpbrk(pattern, "<>") != NULL) {
-		/* perform relational dewey match on version number */
-		return dewey_match(pattern, pkg);
-	}
-	if (strpbrk(pattern, "*?[]") != NULL) {
-		/* glob match */
-		if (glob_match(pattern, pkg))
-			return 1;
-	}
-
-	/* no dewey or glob match -> simple compare */
-	if (simple_match(pattern, pkg))
-		return 1;
-
-	/* no match */
-	return 0;
-}