// -*- C++ -*-// $Id: io_helpers.h,v 1.7 2002/06/29 17:43:19 t1mpy Exp $// id3lib: a software library for creating and manipulating id3v1/v2 tags// Copyright 1999, 2000  Scott Thomas Haug// This library is free software; you can redistribute it and/or modify it// under the terms of the GNU Library General Public License as published by// the Free Software Foundation; either version 2 of the License, or (at your// option) any later version.//// This library 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 Library General Public// License for more details.//// You should have received a copy of the GNU Library General Public License// along with this library; if not, write to the Free Software Foundation,// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.// The id3lib authors encourage improvements and optimisations to be sent to// the id3lib coordinator.  Please see the README file for details on where to// send such submissions.  See the AUTHORS file for a list of people who have// contributed to id3lib.  See the ChangeLog file for a list of changes to// id3lib.  These files are distributed with id3lib at// http://download.sourceforge.net/id3lib/#ifndef _ID3LIB_IO_HELPERS_H_#define _ID3LIB_IO_HELPERS_H_#include "id3/id3lib_strings.h"#include "reader.h"#include "writer.h"namespace dami{  namespace io  {    /**     **/    class ID3_CPP_EXPORT ExitTrigger    {      ID3_Reader& _reader;      ID3_Reader::pos_type _pos;      bool _locked;     public:      ExitTrigger(ID3_Reader& rdr)         : _reader(rdr), _pos(rdr.getCur()), _locked(true)      { ; }      ExitTrigger(ID3_Reader& rdr, ID3_Reader::pos_type pos)         : _reader(rdr), _pos(pos)       { ; }      virtual ~ExitTrigger() { if (_locked) _reader.setCur(_pos); }          void release() { _locked = false; }      void update() { _pos = _reader.getCur(); }      void setExitPos(ID3_Reader::pos_type pos) { _pos = pos; }    };    ID3_C_EXPORT String      readString(ID3_Reader&);    ID3_C_EXPORT String      readText(ID3_Reader&, size_t);    ID3_C_EXPORT String      readUnicodeString(ID3_Reader&);    ID3_C_EXPORT String      readUnicodeText(ID3_Reader&, size_t);    ID3_C_EXPORT BString     readAllBinary(ID3_Reader&);    ID3_C_EXPORT BString     readBinary(ID3_Reader&, size_t);    ID3_C_EXPORT uint32      readLENumber(ID3_Reader&, size_t);    ID3_C_EXPORT uint32      readBENumber(ID3_Reader&, size_t);    ID3_C_EXPORT String      readTrailingSpaces(ID3_Reader&, size_t);    ID3_C_EXPORT uint32      readUInt28(ID3_Reader&);    ID3_C_EXPORT size_t      writeString(ID3_Writer&, String);    ID3_C_EXPORT size_t      writeText(ID3_Writer&, String);    ID3_C_EXPORT size_t      writeUnicodeString(ID3_Writer&, String, bool = true);    ID3_C_EXPORT size_t      writeUnicodeText(ID3_Writer&, String, bool = true);    ID3_C_EXPORT size_t      writeBENumber(ID3_Writer&, uint32 val, size_t);    ID3_C_EXPORT size_t      writeTrailingSpaces(ID3_Writer&, String, size_t);    ID3_C_EXPORT size_t      writeUInt28(ID3_Writer&, uint32);  };};#endif /* _ID3LIB_IO_HELPERS_H_ */