aboutsummaryrefslogtreecommitdiff
path: root/0.8.0/paludis/version_operator.cc
diff options
context:
space:
mode:
Diffstat (limited to '0.8.0/paludis/version_operator.cc')
-rw-r--r--0.8.0/paludis/version_operator.cc142
1 files changed, 142 insertions, 0 deletions
diff --git a/0.8.0/paludis/version_operator.cc b/0.8.0/paludis/version_operator.cc
new file mode 100644
index 0000000..199c903
--- /dev/null
+++ b/0.8.0/paludis/version_operator.cc
@@ -0,0 +1,142 @@
+/* vim: set sw=4 sts=4 et foldmethod=syntax : */
+
+/*
+ * Copyright (c) 2005, 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/util/stringify.hh>
+#include <paludis/version_operator.hh>
+#include <paludis/version_spec.hh>
+
+/** \file
+ * Implementation for VersionOperator.
+ *
+ * \ingroup grpversions
+ */
+
+using namespace paludis;
+
+VersionOperatorValue
+VersionOperator::_decode(const std::string & v)
+{
+ switch (v.length())
+ {
+ case 1:
+ switch (v[0])
+ {
+ case '>':
+ return vo_greater;
+
+ case '=':
+ return vo_equal;
+
+ case '<':
+ return vo_less;
+
+ case '~':
+ return vo_tilde;
+ }
+
+ case 2:
+ if ('=' == v[1])
+ switch (v[0])
+ {
+ case '>':
+ return vo_greater_equal;
+
+ case '<':
+ return vo_less_equal;
+ }
+ }
+
+ throw BadVersionOperatorError(v);
+}
+
+std::ostream &
+paludis::operator<< (std::ostream & s, const VersionOperator & v)
+{
+ do
+ {
+ switch (v._v)
+ {
+ case vo_greater:
+ s << ">";
+ continue;
+
+ case vo_equal:
+ s << "=";
+ continue;
+
+ case vo_less:
+ s << "<";
+ continue;
+
+ case vo_tilde:
+ s << "~";
+ continue;
+
+ case vo_greater_equal:
+ s << ">=";
+ continue;
+
+ case vo_less_equal:
+ s << "<=";
+ continue;
+
+ case vo_equal_star:
+ s << "=*";
+ continue;
+
+ case last_vo:
+ break;
+ }
+
+ throw InternalError(PALUDIS_HERE, "v._v is " + stringify(v._v));
+
+ } while (false);
+
+ return s;
+}
+
+bool (VersionSpec::* VersionOperator::as_version_spec_operator() const)(const VersionSpec &) const
+{
+ switch (_v)
+ {
+ case vo_less:
+ return &VersionSpec::operator< ;
+ case vo_less_equal:
+ return &VersionSpec::operator<= ;
+ case vo_equal:
+ return &VersionSpec::operator== ;
+ case vo_tilde:
+ return &VersionSpec::tilde_compare ;
+ case vo_greater:
+ return &VersionSpec::operator> ;
+ case vo_greater_equal:
+ return &VersionSpec::operator>= ;
+ case vo_equal_star:
+ return &VersionSpec::equal_star_compare ;
+ case last_vo:
+ break;
+ }
+
+ throw InternalError(PALUDIS_HERE, "_v is " + stringify(_v));
+}
+
+BadVersionOperatorError::BadVersionOperatorError(const std::string & msg) throw () :
+ Exception("Bad version operator '" + msg + "'")
+{
+}