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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svl.hxx"
#include <lngmisc.hxx>
#include <tools/solar.h>
#include <tools/string.hxx>
#include <tools/debug.hxx>
#include <rtl/ustrbuf.hxx>
#include <rtl/ustring.hxx>
using namespace rtl;
namespace linguistic
{
///////////////////////////////////////////////////////////////////////////
sal_Int32 GetNumControlChars( const OUString &rTxt )
{
sal_Int32 nCnt = 0;
sal_Int32 nLen = rTxt.getLength();
for (sal_Int32 i = 0; i < nLen; ++i)
{
if (IsControlChar( rTxt[i] ))
++nCnt;
}
return nCnt;
}
sal_Bool RemoveHyphens( OUString &rTxt )
{
sal_Bool bModified = sal_False;
if (HasHyphens( rTxt ))
{
String aTmp( rTxt );
aTmp.EraseAllChars( SVT_SOFT_HYPHEN );
aTmp.EraseAllChars( SVT_HARD_HYPHEN );
rTxt = aTmp;
bModified = sal_True;
}
return bModified;
}
sal_Bool RemoveControlChars( OUString &rTxt )
{
sal_Bool bModified = sal_False;
sal_Int32 nCtrlChars = GetNumControlChars( rTxt );
if (nCtrlChars)
{
sal_Int32 nLen = rTxt.getLength();
sal_Int32 nSize = nLen - nCtrlChars;
OUStringBuffer aBuf( nSize );
aBuf.setLength( nSize );
sal_Int32 nCnt = 0;
for (sal_Int32 i = 0; i < nLen; ++i)
{
sal_Unicode cChar = rTxt[i];
if (!IsControlChar( cChar ))
{
DBG_ASSERT( nCnt < nSize, "index out of range" );
aBuf.setCharAt( nCnt++, cChar );
}
}
DBG_ASSERT( nCnt == nSize, "wrong size" );
rTxt = aBuf.makeStringAndClear();
bModified = sal_True;
}
return bModified;
}
// non breaking field character
#define CH_TXTATR_INWORD ((sal_Char) 0x02)
sal_Bool ReplaceControlChars( rtl::OUString &rTxt, sal_Char /*aRplcChar*/ )
{
// the resulting string looks like this:
// 1. non breaking field characters get removed
// 2. remaining control characters will be replaced by ' '
sal_Bool bModified = sal_False;
sal_Int32 nCtrlChars = GetNumControlChars( rTxt );
if (nCtrlChars)
{
sal_Int32 nLen = rTxt.getLength();
OUStringBuffer aBuf( nLen );
sal_Int32 nCnt = 0;
for (sal_Int32 i = 0; i < nLen; ++i)
{
sal_Unicode cChar = rTxt[i];
if (CH_TXTATR_INWORD != cChar)
{
if (IsControlChar( cChar ))
cChar = ' ';
DBG_ASSERT( nCnt < nLen, "index out of range" );
aBuf.setCharAt( nCnt++, cChar );
}
}
aBuf.setLength( nCnt );
rTxt = aBuf.makeStringAndClear();
bModified = sal_True;
}
return bModified;
}
///////////////////////////////////////////////////////////////////////////
} // namespace linguistic
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