Leaked source code of windows server 2003
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/*****************************************************************/
/** Microsoft Windows for Workgroups **/
/** Copyright (C) Microsoft Corp., 1991-1992 **/
/*****************************************************************/
/*
strrss.cxx
NLS/DBCS-aware string class: strrss method
This file contains the implementation of the strrss method
for the STRING class. It is separate so that clients of STRING which
do not use this operator need not link to it.
FILE HISTORY:
beng 01/18/91 Separated from original monolithic .cxx
beng 02/07/91 Uses lmui.hxx
*/
#include "npcommon.h"
extern "C"
{
#include <netlib.h>
}
#if defined(DEBUG)
static const CHAR szFileName[] = __FILE__;
#define _FILENAME_DEFINED_ONCE szFileName
#endif
#include <npassert.h>
#include <npstring.h>
/*******************************************************************
NAME: NLS_STR::ReplSubStr
SYNOPSIS: Replace the substring starting at istrStart with the
passed nlsRepl string.
If both a start and end is passed, then the operation is
equivalent to a DelSubStr( start, end ) and an
InsertSubStr( start ).
If just a start is passed in, then the operation is
equivalent to DelSubStr( start ), concat new string to end.
The ReplSubStr( NLS_STR&, istrStart&, INT cbDel) method is
private.
ENTRY:
EXIT:
NOTES:
HISTORY:
johnl 11/29/90 Created
beng 04/26/91 Replaced CB with INT
beng 07/23/91 Allow on erroneous string; simplified CheckIstr
********************************************************************/
VOID NLS_STR::ReplSubStr( const NLS_STR & nlsRepl, ISTR& istrStart )
{
if (QueryError() || !nlsRepl)
return;
CheckIstr( istrStart );
DelSubStr( istrStart );
strcat( nlsRepl );
}
VOID NLS_STR::ReplSubStr( const NLS_STR& nlsRepl,
ISTR& istrStart,
const ISTR& istrEnd )
{
CheckIstr( istrEnd );
UIASSERT( istrEnd.QueryIB() >= istrStart.QueryIB() );
ReplSubStr( nlsRepl, istrStart, istrEnd - istrStart );
}
VOID NLS_STR::ReplSubStr( const NLS_STR& nlsRepl,
ISTR& istrStart,
INT cbToBeDeleted )
{
if (QueryError() || !nlsRepl)
return;
CheckIstr( istrStart );
INT cbRequired = strlen() - cbToBeDeleted + nlsRepl.strlen() + 1;
if ( !IsOwnerAlloc() && QueryAllocSize() < cbRequired )
{
if ( !realloc( cbRequired ) )
{
ReportError( WN_OUT_OF_MEMORY );
return;
}
}
else
UIASSERT( QueryAllocSize() >= cbRequired );
CHAR * pchStart = (CHAR *)QueryPch(istrStart) + cbToBeDeleted;
::memmovef( pchStart + nlsRepl.strlen()-cbToBeDeleted,
pchStart,
::strlenf( pchStart ) + 1 );
::memmovef( (CHAR *)QueryPch(istrStart),
nlsRepl._pchData,
nlsRepl.strlen() );
_cchLen = strlen() + nlsRepl.strlen() - cbToBeDeleted;
IncVers();
UpdateIstr( &istrStart );
}