1 files changed, 112 insertions, 0 deletions
diff --git a/tools/filters.cc b/tools/filters.cc
new file mode 100644
index 0000000..f4f21de
--- /dev/null
+++ b/tools/filters.cc
@@ -0,0 +1,112 @@
+/*
+ * ept-cache - Commandline interface to the ept library
+ *
+ * Copyright (C) 2007  Enrico Zini <enrico@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "filters.h"
+#include "info.h"
+#include "utils.h"
+
+#include <ept/apt/packagerecord.h>
+
+#include <wibble/regexp.h>
+
+using namespace std;
+
+namespace filter {
+
+And::~And()
+{
+	for (iterator i = begin(); i != end(); ++i)
+		delete *i;
+}
+void And::acquire_front(Base* filter)
+{
+	insert(begin(), filter);
+}
+void And::acquire(Base* filter)
+{
+	push_back(filter);
+}
+bool And::operator()(Info& info) const
+{
+	if (empty())
+		return true;
+	for (const_iterator i = begin(); i != end(); ++i)
+		if (!(**i)(info))
+			return false;
+	return true;
+}
+
+Or::~Or()
+{
+	for (iterator i = begin(); i != end(); ++i)
+		delete *i;
+}
+void Or::acquire_front(Base* filter)
+{
+	insert(begin(), filter);
+}
+void Or::acquire(Base* filter)
+{
+	push_back(filter);
+}
+bool Or::operator()(Info& info) const
+{
+	if (empty())
+		return true;
+	for (const_iterator i = begin(); i != end(); ++i)
+		if ((**i)(info))
+			return true;
+	return false;
+}
+
+Description::Description(const std::string& str)
+{
+	wibble::Tokenizer tok(str, "[^[:blank:]]+", REG_EXTENDED);
+	for (wibble::Tokenizer::const_iterator i = tok.begin();
+			i != tok.end(); ++i)
+		keywords.push_back(toLower(*i));
+}
+
+bool Description::operator()(Info& info) const
+{
+	info.wantRecord();
+	string name = toLower(info.name);
+	string desc = toLower(info.record->description());
+	for (std::vector<std::string>::const_iterator i = keywords.begin();
+			i != keywords.end(); ++i)
+		if (name.find(*i) == string::npos && desc.find(*i) == string::npos)
+			return false;
+	return true;
+}
+
+bool TagExpression::operator()(Info& info) const
+{
+	info.wantTags();
+	return expr(info.tags);
+}
+
+bool Blacklist::operator()(Info& info) const
+{
+	return blacklist.find(info.name) == blacklist.end();
+}
+
+}
+
+// vim:set ts=4 sw=4: