aria2/src/PStringSegment.h

86 lines
2.5 KiB
C++

/* <!-- 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_P_STRING_SEGMENT_H_
#define _D_P_STRING_SEGMENT_H_
#include "PStringDatum.h"
#include <string>
namespace aria2 {
class PStringSegmentVisitor;
class PStringSegment : public PStringDatum
{
private:
std::string _value;
SharedHandle<PStringDatum> _next;
public:
PStringSegment(const std::string& value,
const SharedHandle<PStringDatum>& next);
PStringSegment(const std::string& value);
virtual ~PStringSegment();
virtual void accept(PStringVisitor* visitor);
const std::string& getValue() const;
bool hasNext() const;
SharedHandle<PStringDatum> getNext() const;
};
typedef SharedHandle<PStringSegment> PStringSegmentHandle;
class PStringSegmentVisitor {
public:
virtual ~PStringSegmentVisitor() {}
virtual void hello(PStringSegment* s) = 0;
virtual void goodbye(PStringSegment* s) = 0;
};
typedef SharedHandle<PStringSegmentVisitor> PStringSegmentVisitorHandle;
} // namespace aria2
#endif // _D_P_STRING_SEGMENT_H_