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INTEGRATION: CWS regexp02 (1.13.26); FILE MERGED

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2007/11/06 13:01:43 ama 1.13.26.2: Fix #i15666#: Backward references in regular expressions
2007/11/01 12:40:16 ama 1.13.26.1: Fix #i15666#: Resolve backreferences in regular expressions
This commit is contained in:
Vladimir Glazounov
2007-12-05 15:41:58 +00:00
parent a76133c236
commit f9bb8ca2af
1 changed files with 100 additions and 3 deletions
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103
unotools/source/i18n/textsearch.cxx
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@@ -4,9 +4,9 @@
*
* $RCSfile: textsearch.cxx,v $
*
* $Revision: 1.13 $
* $Revision: 1.14 $
*
* last change: $Author: ihi $ $Date: 2007-03-26 12:46:42 $
* last change: $Author: vg $ $Date: 2007-12-05 16:41:58 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
@@ -249,7 +249,7 @@ int TextSearch::SearchFrwrd( const String & rStr, xub_StrLen* pStart,
{
SearchResult aRet( xTextSearch->searchForward(
rStr, *pStart, *pEnde ));
if( 1 == aRet.subRegExpressions )
if( aRet.subRegExpressions > 0 )
{
nRet = 1;
// the XTextsearch returns in startOffset the higher position
@@ -301,6 +301,103 @@ int TextSearch::SearchBkwrd( const String & rStr, xub_StrLen* pStart,
return nRet;
}
void TextSearch::ReplaceBackReferences( String& rReplaceStr, const String &rStr, const SearchResult& rResult )
{
if( rResult.subRegExpressions > 0 )
{
String sTab( '\t' );
sal_Unicode sSrchChrs[] = {'\\', '&', '$', 0};
String sTmp;
xub_StrLen nPos = 0;
sal_Unicode sFndChar;
while( STRING_NOTFOUND != ( nPos = rReplaceStr.SearchChar( sSrchChrs, nPos )) )
{
if( rReplaceStr.GetChar( nPos ) == '&')
{
USHORT nStart = (USHORT)(rResult.startOffset[0]);
USHORT nLength = (USHORT)(rResult.endOffset[0] - rResult.startOffset[0]);
rReplaceStr.Erase( nPos, 1 ); // delete ampersand
// replace by found string
rReplaceStr.Insert( rStr, nStart, nLength, nPos );
// jump over
nPos = nPos + nLength;
}
else if( rReplaceStr.GetChar( nPos ) == '$')
{
if( nPos + 1 < rReplaceStr.Len())
{
sFndChar = rReplaceStr.GetChar( nPos + 1 );
switch(sFndChar)
{ // placeholder for a backward reference?
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
{
rReplaceStr.Erase( nPos, 2 ); // delete both
int i = sFndChar - '0'; // index
if(i < rResult.subRegExpressions)
{
USHORT nSttReg = (USHORT)(rResult.startOffset[i]);
USHORT nRegLen = (USHORT)(rResult.endOffset[i]);
if( nRegLen > nSttReg )
nRegLen = nRegLen - nSttReg;
else
{
nRegLen = nSttReg - nRegLen;
nSttReg = (USHORT)(rResult.endOffset[i]);
}
// Copy reference from found string
sTmp = rStr.Copy((USHORT)nSttReg, (USHORT)nRegLen);
// insert
rReplaceStr.Insert( sTmp, nPos );
// and step over
nPos = nPos + sTmp.Len();
}
}
break;
default:
nPos += 2; // leave both chars unchanged
break;
}
}
}
else
{
// at least another character?
if( nPos + 1 < rReplaceStr.Len())
{
sFndChar = rReplaceStr.GetChar( nPos + 1 );
switch(sFndChar)
{
case '\\':
case '&':
case '$':
rReplaceStr.Erase( nPos, 1 );
nPos++;
break;
case 't':
rReplaceStr.Erase( nPos, 2 ); // delete both
rReplaceStr.Insert( sTab, nPos ); // insert tabulator
nPos++; // step over
break;
default:
nPos += 2; // ignore both characters
break;
}
}
}
}
}
}
#if defined _MSC_VER
#pragma optimize("", on)
#endif