poco/Foundation/src/CountingStream.cpp

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2006-07-11 18:33:40 +02:00
//
// CountingStream.cpp
//
// $Id: //poco/1.1.0/Foundation/src/CountingStream.cpp#2 $
//
// Library: Foundation
// Package: Streams
// Module: CountingStream
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#include "Foundation/CountingStream.h"
Foundation_BEGIN
CountingStreamBuf::CountingStreamBuf():
_pIstr(0),
_pOstr(0),
_chars(0),
_lines(0),
_pos(0)
{
}
CountingStreamBuf::CountingStreamBuf(std::istream& istr):
_pIstr(&istr),
_pOstr(0),
_chars(0),
_lines(0),
_pos(0)
{
}
CountingStreamBuf::CountingStreamBuf(std::ostream& ostr):
_pIstr(0),
_pOstr(&ostr),
_chars(0),
_lines(0),
_pos(0)
{
}
CountingStreamBuf::~CountingStreamBuf()
{
}
int CountingStreamBuf::readFromDevice()
{
if (_pIstr)
{
int c = _pIstr->get();
if (c != -1)
{
++_chars;
if (_pos++ == 0) ++_lines;
if (c == '\n') _pos = 0;
}
return c;
}
return -1;
}
int CountingStreamBuf::writeToDevice(char c)
{
++_chars;
if (_pos++ == 0) ++_lines;
if (c == '\n') _pos = 0;
if (_pOstr) _pOstr->put(c);
return charToInt(c);
}
void CountingStreamBuf::reset()
{
_chars = 0;
_lines = 0;
_pos = 0;
}
void CountingStreamBuf::setCurrentLineNumber(int line)
{
_lines = line;
}
CountingIOS::CountingIOS()
{
poco_ios_init(&_buf);
}
CountingIOS::CountingIOS(std::istream& istr): _buf(istr)
{
poco_ios_init(&_buf);
}
CountingIOS::CountingIOS(std::ostream& ostr): _buf(ostr)
{
poco_ios_init(&_buf);
}
CountingIOS::~CountingIOS()
{
}
void CountingIOS::reset()
{
_buf.reset();
}
void CountingIOS::setCurrentLineNumber(int line)
{
_buf.setCurrentLineNumber(line);
}
CountingStreamBuf* CountingIOS::rdbuf()
{
return &_buf;
}
CountingInputStream::CountingInputStream(std::istream& istr): CountingIOS(istr), std::istream(&_buf)
{
}
CountingInputStream::~CountingInputStream()
{
}
CountingOutputStream::CountingOutputStream(): std::ostream(&_buf)
{
}
CountingOutputStream::CountingOutputStream(std::ostream& ostr): CountingIOS(ostr), std::ostream(&_buf)
{
}
CountingOutputStream::~CountingOutputStream()
{
}
Foundation_END