libxbps: move match funcs from plist_find.c into its own file.

lib/plist_match.c

@@ -0,0 +1,125 @@
+/*-
+ * Copyright (c) 2008-2011 Juan Romero Pardines.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "xbps_api_impl.h"
+
+/**
+ * @file lib/plist_find.c
+ * @brief PropertyList generic routines
+ * @defgroup plist PropertyList generic functions
+ *
+ * These functions manipulate plist files and objects shared by almost
+ * all library functions.
+ */
+bool
+xbps_match_virtual_pkg_in_dict(prop_dictionary_t d,
+			       const char *str,
+			       bool bypattern)
+{
+	prop_array_t provides;
+	bool found = false;
+
+	if ((provides = prop_dictionary_get(d, "provides"))) {
+		if (bypattern)
+			found = xbps_match_pkgpattern_in_array(provides, str);
+		else
+			found = xbps_match_pkgname_in_array(provides, str);
+	}
+	return found;
+}
+
+static bool
+match_string_in_array(prop_array_t array, const char *str, int mode)
+{
+	prop_object_iterator_t iter;
+	prop_object_t obj;
+	const char *pkgdep;
+	char *curpkgname;
+	bool found = false;
+
+	assert(array != NULL);
+	assert(str != NULL);
+
+	iter = prop_array_iterator(array);
+	if (iter == NULL)
+		return false;
+
+	while ((obj = prop_object_iterator_next(iter))) {
+		assert(prop_object_type(obj) == PROP_TYPE_STRING);
+		if (mode == 0) {
+			/* match by string */
+			if (prop_string_equals_cstring(obj, str)) {
+				found = true;
+				break;
+			}
+		} else if (mode == 1) {
+			/* match by pkgname */
+			pkgdep = prop_string_cstring_nocopy(obj);
+			curpkgname = xbps_pkg_name(pkgdep);
+			if (curpkgname == NULL)
+				break;
+			if (strcmp(curpkgname, str) == 0) {
+				free(curpkgname);
+				found = true;
+				break;
+			}
+			free(curpkgname);
+		} else if (mode == 2) {
+			/* match by pkgpattern */
+			pkgdep = prop_string_cstring_nocopy(obj);
+			if (xbps_pkgpattern_match(pkgdep, str)) {
+				found = true;
+				break;
+			}
+		}
+	}
+	prop_object_iterator_release(iter);
+
+	return found;
+}
+
+bool
+xbps_match_string_in_array(prop_array_t array, const char *str)
+{
+	return match_string_in_array(array, str, 0);
+}
+
+bool
+xbps_match_pkgname_in_array(prop_array_t array, const char *pkgname)
+{
+	return match_string_in_array(array, pkgname, 1);
+}
+
+bool
+xbps_match_pkgpattern_in_array(prop_array_t array, const char *pattern)
+{
+	return match_string_in_array(array, pattern, 2);
+}