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/*
CLAW - a C++ Library Absolutely Wonderful
CLAW is a free library without any particular aim but being useful to
anyone.
Copyright (C) 2005-2011 Julien Jorge
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
contact: julien.jorge@gamned.org
*/
/**
* \file log_stream_uniq.cpp
* \brief Implementation of the log_stream_uniq class.
* \author Julien Jorge
*/
#include <claw/log_stream_uniq.hpp>
#include <claw/claw_gettext.hpp>
#include <sstream>
/*----------------------------------------------------------------------------*/
/**
* \brief Constructor.
* \param s The stream in which the messages are finally written. It will be
* deleted in the destructor.
*/
claw::log_stream_uniq::log_stream_uniq( log_stream* s )
: m_stream(s), m_repetition_count(0)
{
} // log_stream_uniq::log_stream_uniq()
/*----------------------------------------------------------------------------*/
/**
* \brief Destructor.
*/
claw::log_stream_uniq::~log_stream_uniq()
{
delete m_stream;
} // log_stream_uniq::~log_stream_uniq()
/*----------------------------------------------------------------------------*/
/**
* \brief Write a string in the stream.
* \param str The sring to write.
*/
void claw::log_stream_uniq::write( const std::string& str )
{
std::string::size_type p = str.find_first_of('\n');
if ( p == std::string::npos )
m_current_line += str;
else
{
++p; // includes the '\n'
m_current_line += str.substr(0, p);
output_current_line();
if ( p != str.length() )
write( str.substr(p) );
}
} // log_stream_uniq::write()
/*----------------------------------------------------------------------------*/
/**
* \brief Flush the stream
*/
void claw::log_stream_uniq::flush()
{
m_stream->flush();
} // log_stream_uniq::flush()
/*----------------------------------------------------------------------------*/
/**
* \brief Output the current line, if not in the history.
*/
void claw::log_stream_uniq::output_current_line()
{
if ( m_current_line == m_previous_line )
++m_repetition_count;
else
{
if ( m_repetition_count > 0 )
{
std::ostringstream oss;
oss << claw_gettext("(Previous line repeated ") << m_repetition_count
<< claw_ngettext(" time)", " times)", m_repetition_count) << '\n';
m_stream->write(oss.str());
}
m_repetition_count = 0;
m_previous_line = m_current_line;
m_stream->write( m_current_line );
}
m_current_line.clear();
} // log_stream_uniq::output_current_line()
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