office-gobmx/connectivity/source/drivers/file/quotedstring.cxx
2012-06-12 22:24:55 +01:00

155 lines
6.1 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include "file/quotedstring.hxx"
#include <rtl/logfile.hxx>
namespace connectivity
{
//==================================================================
//= QuotedTokenizedString
//==================================================================
//------------------------------------------------------------------
xub_StrLen QuotedTokenizedString::GetTokenCount( sal_Unicode cTok, sal_Unicode cStrDel ) const
{
RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "file", "Ocke.Janssen@sun.com", "QuotedTokenizedString::GetTokenCount" );
const xub_StrLen nLen = m_sString.Len();
if ( !nLen )
return 0;
xub_StrLen nTokCount = 1;
sal_Bool bStart = sal_True; // Are we on the first character in the Token?
sal_Bool bInString = sal_False; // Are we WITHIN a (cStrDel delimited) String?
// Search for String-end after the first not matching character
for( xub_StrLen i = 0; i < nLen; ++i )
{
const sal_Unicode cChar = m_sString.GetChar(i);
if (bStart)
{
bStart = sal_False;
// First character a String-Delimiter?
if ( cChar == cStrDel )
{
bInString = sal_True; // then we are now WITHIN the string!
continue; // skip this character!
}
}
if (bInString)
{
// when now the String-Delimiter-character occurs ...
if ( cChar == cStrDel )
{
if ((i+1 < nLen) && (m_sString.GetChar(i+1) == cStrDel))
{
// double String-Delimter-character:
++i; // no string-end, skip next character.
}
else
{
// String-End
bInString = sal_False;
}
}
} // if (bInString)
else
{
// does the Token-character match, then raise TokCount
if ( cChar == cTok )
{
++nTokCount;
bStart = sal_True;
}
}
}
//OSL_TRACE("QuotedTokenizedString::nTokCount = %d\n", ((OUtoCStr(::rtl::OUString(nTokCount))) ? (OUtoCStr(::rtl::OUString(nTokCount))):("NULL")) );
return nTokCount;
}
//------------------------------------------------------------------
void QuotedTokenizedString::GetTokenSpecial( String& _rStr,xub_StrLen& nStartPos, sal_Unicode cTok, sal_Unicode cStrDel ) const
{
RTL_LOGFILE_CONTEXT_AUTHOR( aLogger, "file", "Ocke.Janssen@sun.com", "QuotedTokenizedString::GetTokenCount" );
_rStr.Erase();
const xub_StrLen nLen = m_sString.Len();
if ( nLen )
{
sal_Bool bInString = (nStartPos < nLen) && (m_sString.GetChar(nStartPos) == cStrDel); // are we WITHIN a (cStrDel delimited) String?
// First character a String-Delimiter?
if (bInString )
++nStartPos; // skip this character!
if ( nStartPos >= nLen )
return;
sal_Unicode* pData = _rStr.AllocBuffer( nLen - nStartPos + 1 );
const sal_Unicode* pStart = pData;
// Search until end of string for the first not matching character
for( xub_StrLen i = nStartPos; i < nLen; ++i )
{
const sal_Unicode cChar = m_sString.GetChar(i);
if (bInString)
{
// when now the String-Delimiter-character occurs ...
if ( cChar == cStrDel )
{
if ((i+1 < nLen) && (m_sString.GetChar(i+1) == cStrDel))
{
// double String Delimiter-character
// no end of string, skip next character.
++i;
*pData++ = m_sString.GetChar(i); // character belongs to Result-String
}
else
{
//end of String
bInString = sal_False;
*pData = 0;
}
}
else
{
*pData++ = cChar; // character belongs to Result-String
}
}
else
{
// does the Token-sign match, then raise nTok
if ( cChar == cTok )
{
// premature break of loop possible, because we found what we were looking for
nStartPos = i+1;
break;
}
else
{
*pData++ = cChar; // character belongs to Result-String
}
}
} // for( xub_StrLen i = nStartPos; i < nLen; ++i )
*pData = 0;
_rStr.ReleaseBufferAccess(xub_StrLen(pData - pStart));
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */