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diff --git a/0.8.0/paludis/qa/filename_check.cc b/0.8.0/paludis/qa/filename_check.cc
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+/* vim: set sw=4 sts=4 et foldmethod=syntax : */
+
+/*
+ * Copyright (c) 2006 Ciaran McCreesh <ciaranm@ciaranm.org>
+ *
+ * This file is part of the Paludis package manager. Paludis is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU General
+ * Public License version 2, as published by the Free Software Foundation.
+ *
+ * Paludis 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 <paludis/qa/filename_check.hh>
+
+using namespace paludis;
+using namespace paludis::qa;
+
+FileNameCheck::FileNameCheck()
+{
+}
+
+CheckResult
+FileNameCheck::operator() (const FSEntry & f) const
+{
+ CheckResult result(f, identifier());
+
+ static const std::string allowed(
+ "abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "0123456789"
+ "+-_.:");
+
+ if (std::string::npos != f.basename().find_first_not_of(allowed))
+ result << Message(qal_major, "Illegal filename");
+
+ return result;
+}
+
+const std::string &
+FileNameCheck::identifier()
+{
+ static const std::string id("filename");
+ return id;
+}
+