Leaked source code of windows server 2003
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/*****************************************************************/
/** Microsoft Windows for Workgroups **/
/** Copyright (C) Microsoft Corp., 1991-1992 **/
/*****************************************************************/
/*
strstr.cxx
NLS/DBCS-aware string class: strstr method
This file contains the implementation of the strstr 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::strstr
SYNOPSIS: Returns TRUE if the passed string is found, false otherwise.
pistrPos contains start of the specified string if TRUE
is returned.
ENTRY:
EXIT:
NOTES:
HISTORY:
johnl 11/16/90 Written
beng 07/23/91 Allow on erroneous string; simplified CheckIstr
********************************************************************/
BOOL NLS_STR::strstr( ISTR * pistrPos, const NLS_STR & nls ) const
{
if (QueryError() || !nls)
return FALSE;
UpdateIstr( pistrPos );
CheckIstr( *pistrPos );
const CHAR * pchStrRes = ::strstrf( QueryPch(), nls.QueryPch() );
if ( pchStrRes == NULL )
{
pistrPos->SetIB( strlen() );
return FALSE;
}
pistrPos->SetIB((int) (pchStrRes - QueryPch()));
return TRUE;
}
BOOL NLS_STR::strstr( ISTR * pistrPos,
const NLS_STR & nls,
const ISTR & istrStart ) const
{
if (QueryError() || !nls)
return FALSE;
CheckIstr( istrStart );
UpdateIstr( pistrPos );
CheckIstr( *pistrPos );
const CHAR * pchStrRes = ::strstrf(QueryPch(istrStart), nls.QueryPch() );
if ( pchStrRes == NULL )
{
pistrPos->SetIB( strlen() );
return FALSE;
}
pistrPos->SetIB((int)(pchStrRes - QueryPch()));
return TRUE;
}