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+/* vim: set sw=4 sts=4 et foldmethod=syntax : */
+
+/*
+ * Copyright (c) 2005, 2006 Ciaran McCreesh <ciaran.mccreesh@blueyonder.co.uk>
+ * Copyright (c) 2006 Stephen Bennett <spb@gentoo.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
+ */
+
+#ifndef PALUDIS_GUARD_ARGS_ARGS_VISITOR_HH
+#define PALUDIS_GUARD_ARGS_ARGS_VISITOR_HH 1
+
+#include <list>
+#include <paludis/util/visitor.hh>
+#include <string>
+
+/** \file
+ * Declaration for ArgsVisitor
+ *
+ * \ingroup grplibpaludisargs
+ */
+
+namespace paludis
+{
+ namespace args
+ {
+ class ArgsOption;
+ class StringArg;
+ class AliasArg;
+ class SwitchArg;
+ class IntegerArg;
+ class EnumArg;
+ class StringSetArg;
+
+ /**
+ * Visitor types for visitors that can visit Args.
+ *
+ * \ingroup grplibpaludisargs
+ */
+ typedef VisitorTypes<ArgsOption *, StringArg *, AliasArg *, SwitchArg *,
+ IntegerArg *, EnumArg *, StringSetArg *> ArgsVisitorTypes;
+
+ /**
+ * Visitor class. Processes command-line options as they are found.
+ *
+ * \ingroup grplibpaludisargs
+ */
+ class ArgsVisitor : public ArgsVisitorTypes::Visitor
+ {
+ private:
+ std::list<std::string>::iterator *_args_index, _args_end;
+
+ const std::string& get_param(const ArgsOption * const);
+
+ public:
+ /**
+ * Constructor
+ */
+ ArgsVisitor(std::list<std::string>::iterator *, std::list<std::string>::iterator);
+
+ /// Visit an ArgsOption.
+ void visit(ArgsOption * const);
+
+ /// Visit a StringArg.
+ void visit(StringArg * const);
+
+ /// Visit an AliasArg.
+ void visit(AliasArg * const);
+
+ /// Visit a SwitchArg.
+ void visit(SwitchArg * const);
+
+ /// Visit an IntegerArg.
+ void visit(IntegerArg * const);
+
+ /// Visit an EnumArg.
+ void visit(EnumArg * const);
+
+ /// Visit a StringSetArg.
+ void visit(StringSetArg * const);
+ };
+ }
+}
+
+#endif