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