150 lines
3.0 KiB
C++
150 lines
3.0 KiB
C++
//
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// VMime library (http://www.vmime.org)
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// Copyright (C) 2002-2007 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 along
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// with this program; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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// Linking this library statically or dynamically with other modules is making
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// a combined work based on this library. Thus, the terms and conditions of
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// the GNU General Public License cover the whole combination.
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//
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#include "vmime/utility/stringProxy.hpp"
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#include <iterator>
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#include <algorithm>
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namespace vmime {
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namespace utility {
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stringProxy::stringProxy()
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: m_start(0), m_end(0)
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{
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}
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stringProxy::stringProxy(const stringProxy& s)
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: m_buffer(s.m_buffer), m_start(s.m_start), m_end(s.m_end)
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{
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}
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stringProxy::stringProxy(const string_type& s, const size_type start, const size_type end)
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: m_buffer(s), m_start(start),
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m_end(end == std::numeric_limits <size_type>::max() ? s.length() : end)
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{
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}
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void stringProxy::set(const string_type& s, const size_type start, const size_type end)
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{
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m_buffer = s;
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m_start = start;
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if (end == std::numeric_limits <size_type>::max())
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m_end = s.length();
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else
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m_end = end;
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}
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void stringProxy::detach()
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{
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m_buffer.clear();
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m_start = m_end = 0;
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}
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stringProxy& stringProxy::operator=(const stringProxy& s)
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{
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m_buffer = s.m_buffer;
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m_start = s.m_start;
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m_end = s.m_end;
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return (*this);
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}
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stringProxy& stringProxy::operator=(const string_type& s)
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{
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m_buffer = s;
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m_start = 0;
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m_end = s.length();
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return (*this);
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}
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void stringProxy::extract(outputStream& os, const size_type start, const size_type end,
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utility::progressListener* progress) const
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{
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size_type len = 0;
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if (end == std::numeric_limits <size_type>::max())
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len = m_end - start - m_start;
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else if (end > start)
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len = end - start;
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if (progress)
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progress->start(len);
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os.write(m_buffer.data() + m_start + start, len);
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if (progress)
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{
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progress->progress(len, len);
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progress->stop(len);
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}
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}
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const stringProxy::size_type stringProxy::length() const
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{
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return (m_end - m_start);
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}
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const stringProxy::size_type stringProxy::start() const
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{
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return (m_start);
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}
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const stringProxy::size_type stringProxy::end() const
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{
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return (m_end);
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}
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std::ostream& operator<<(std::ostream& os, const stringProxy& s)
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{
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outputStreamAdapter adapter(os);
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s.extract(adapter);
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return (os);
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}
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outputStream& operator<<(outputStream& os, const stringProxy& s)
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{
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s.extract(os);
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return (os);
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}
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} // utility
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} // vmime
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