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/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2006 Tatsuhiro Tsujikawa
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#ifndef _D_OPTION_HANDLER_H_
#define _D_OPTION_HANDLER_H_
#include "common.h"
#include <string>
#include <vector>
#include <iosfwd>
#include "SharedHandle.h"
namespace aria2 {
class Option;
class OptionHandler {
public:
virtual ~OptionHandler() {}
virtual bool canHandle(const std::string& optName) = 0;
virtual void parse(Option& option, const std::string& arg) = 0;
virtual std::string createPossibleValuesString() const = 0;
virtual bool hasTag(const std::string& tag) const = 0;
virtual void addTag(const std::string& tag) = 0;
virtual std::string toTagString() const = 0;
virtual const std::string& getName() const = 0;
virtual const std::string& getDescription() const = 0;
virtual const std::string& getDefaultValue() const = 0;
virtual bool isHidden() const = 0;
virtual void hide() = 0;
enum ARG_TYPE {
REQ_ARG,
OPT_ARG,
NO_ARG
};
virtual ARG_TYPE getArgType() const = 0;
virtual char getShortName() const = 0;
virtual int getOptionID() const = 0;
virtual void setOptionID(int id) = 0;
};
class OptionHandlerNameLesser:public std::binary_function
<SharedHandle<OptionHandler>, SharedHandle<OptionHandler>, bool> {
public:
bool operator()
(const SharedHandle<OptionHandler>& lhs,
const SharedHandle<OptionHandler>& rhs) const
{
return lhs->getName() < rhs->getName();
}
};
class OptionHandlerIDLesser:public std::binary_function
<SharedHandle<OptionHandler>, SharedHandle<OptionHandler>, bool> {
public:
bool operator()
(const SharedHandle<OptionHandler>& lhs,
const SharedHandle<OptionHandler>& rhs) const
{
return lhs->getOptionID() < rhs->getOptionID();
}
};
typedef SharedHandle<OptionHandler> OptionHandlerHandle;
typedef std::vector<OptionHandlerHandle> OptionHandlers;
std::ostream& operator<<(std::ostream& o, const OptionHandler& optionHandler);
} // namespace aria2
#endif // _D_OPTION_HANDLER_H_
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