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// CommandParser.hh for Fluxbox - an X11 Window manager
// Copyright (c) 2003 Henrik Kinnunen (fluxgen{<a*t>}users.sourceforge.net)
// and Simon Bowden (rathnor at users.sourceforge.net)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
// $Id: CommandParser.hh,v 1.1 2003/06/30 14:44:43 fluxgen Exp $
#ifndef COMMANDPARSER_HH
#define COMMANDPARSER_HH
#include <string>
#include <map>
#include <ostream>
#include "RefCount.hh"
namespace FbTk {
class Command;
};
/// Creates commands from command and argument.
/// Used for modules to add new commands in compile/run time
class CommandFactory {
public:
CommandFactory();
virtual ~CommandFactory();
virtual FbTk::Command *stringToCommand(const std::string &command,
const std::string &arguments) = 0;
protected:
void addCommand(const std::string &value);
};
/// Parses text into a command
class CommandParser {
public:
typedef std::map<std::string, CommandFactory *> CommandFactoryMap;
/// @return parses and returns a command matching the line
FbTk::Command *parseLine(const std::string &line);
/// lists all commands to an ostream
void showCommands(std::ostream &the_stream) const;
/// @return instance of command parser
static CommandParser &instance();
private:
// so CommandFactory can associate it's commands
friend class CommandFactory;
/// associate a command with a factory
void associateCommand(const std::string &name, CommandFactory &factory);
/// remove all associations with the factory
void removeAssociation(CommandFactory &factory);
/// search for a command in our command factory map
FbTk::Command *toCommand(const std::string &command,
const std::string &arguments);
CommandFactoryMap m_commandfactorys; ///< a string to factory map
};
#endif // COMMANDPARSER_HH
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