reactos/rosapps/sysutils/regexpl/ArgumentParser.cpp
Nedko Arnaudov c0ba0ea090 Fix personal info.
svn path=/trunk/; revision=12803
2005-01-04 21:40:25 +00:00

112 lines
3.1 KiB
C++

/* $Id$
*
* regexpl - Console Registry Explorer
*
* Copyright (C) 2000-2005 Nedko Arnaudov <nedko@users.sourceforge.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
// ArgumentParser.cpp: implementation of the CArgumentParser class.
//
//////////////////////////////////////////////////////////////////////
#include "ph.h"
#include "ArgumentParser.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CArgumentParser::CArgumentParser()
{
m_pchArgumentList = NULL;
m_pchArgumentListEnd = NULL;
m_pchArgument = NULL;
}
CArgumentParser::~CArgumentParser()
{
}
void CArgumentParser::SetArgumentList(TCHAR *pchArguments)
{
TCHAR *pch = m_pchArgumentList = pchArguments;
m_pchArgumentListEnd = pchArguments + _tcslen(pchArguments);
BOOL blnLongArg = FALSE;
while (*pch)
{
switch(*pch)
{
case _T('^'): // argument parser ignores escape sequences
if (pch[1])
pch++;
break;
case _T('\"'):
blnLongArg = !blnLongArg;
break;
case _T(' '):
case _T('\t'):
case _T('\r'):
case _T('\n'):
if (!blnLongArg)
*pch = 0;
break;
}
pch++;
}
ResetArgumentIteration();
}
TCHAR * CArgumentParser::GetNextArgument()
{
ASSERT(m_pchArgumentList); // call SetArgumentList() before calling this function
ASSERT(m_pchArgumentListEnd); // call SetArgumentList() before calling this function
ASSERT(m_pchArgumentListEnd >= m_pchArgumentList);
// if this is begin of iteration
if (!m_pchArgument)
m_pchArgument = m_pchArgumentList;
while(m_pchArgument)
{
if (m_pchArgument > m_pchArgumentListEnd)
{ // if end of arguments list reached
ASSERT(m_pchArgument - 1 == m_pchArgumentListEnd);
break;
}
TCHAR *pchArg = m_pchArgument;
// Next argument
m_pchArgument += _tcslen(m_pchArgument)+1;
if(*pchArg)
{ // if argument is not an empty string
return pchArg;
}
}
return NULL;
}
void CArgumentParser::ResetArgumentIteration()
{
m_pchArgument = NULL;
}