133 lines
2.7 KiB
C++
133 lines
2.7 KiB
C++
//
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// VMime library (http://vmime.sourceforge.net)
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// Copyright (C) 2002-2004 Vincent Richard <vincent@vincent-richard.net>
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of
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// the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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#ifndef VMIME_TYPEADAPTER_HPP_INCLUDED
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#define VMIME_TYPEADAPTER_HPP_INCLUDED
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#include <sstream>
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#include "component.hpp"
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namespace vmime
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{
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/** An adapter to allow any type being treated as a 'component'.
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*/
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template <class TYPE>
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class typeAdapter : public component
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{
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public:
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typeAdapter()
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{
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}
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typeAdapter(typeAdapter& a)
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: m_value(a.m_value)
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{
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}
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typeAdapter(const TYPE& v)
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: m_value(v)
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{
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}
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typeAdapter* clone() const
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{
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return new typeAdapter(*this);
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}
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void copyFrom(const component& other)
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{
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m_value = dynamic_cast <const typeAdapter <TYPE>&>(other).m_value;
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}
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typeAdapter& operator=(const TYPE& v)
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{
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m_value = v;
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return (*this);
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}
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typeAdapter& operator=(const component& other)
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{
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copyFrom(other);
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return (*this);
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}
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operator TYPE() const
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{
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return (m_value);
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}
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void parse(const string& buffer, const string::size_type position,
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const string::size_type end, string::size_type* newPosition = NULL)
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{
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std::istringstream iss(string(buffer.begin() + position, buffer.begin() + end));
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iss >> m_value;
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if (newPosition)
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*newPosition = end;
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}
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void generate(utility::outputStream& os,
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const string::size_type /* maxLineLength */ = lineLengthLimits::infinite,
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const string::size_type curLinePos = 0,
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string::size_type* newLinePos = NULL) const
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{
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std::ostringstream oss;
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oss << m_value;
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os << oss.str();
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if (newLinePos)
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*newLinePos = curLinePos + oss.str().length();
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}
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const std::vector <const component*> getChildComponents() const
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{
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return std::vector <const component*>();
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}
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private:
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TYPE m_value;
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};
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template <>
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void typeAdapter <string>::parse(const string& buffer, const string::size_type position,
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const string::size_type end, string::size_type* newPosition);
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} // vmime
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#endif // VMIME_TYPEADAPTE_HPP_INCLUDED
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