oox/source/vml/vmlinputstream.cxx

   1 /*************************************************************************
   2  *
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * Copyright 2008 by Sun Microsystems, Inc.
   6  *
   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * $RCSfile: vmldrawing.cxx,v $
  10  * $Revision: 1.5 $
  11  *
  12  * This file is part of OpenOffice.org.
  13  *
  14  * OpenOffice.org is free software: you can redistribute it and/or modify
  15  * it under the terms of the GNU Lesser General Public License version 3
  16  * only, as published by the Free Software Foundation.
  17  *
  18  * OpenOffice.org is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU Lesser General Public License version 3 for more details
  22  * (a copy is included in the LICENSE file that accompanied this code).
  23  *
  24  * You should have received a copy of the GNU Lesser General Public License
  25  * version 3 along with OpenOffice.org.  If not, see
  26  * <http://www.openoffice.org/license.html>
  27  * for a copy of the LGPLv3 License.
  28  *
  29  ************************************************************************/
  30
  31 #include "oox/vml/vmlinputstream.hxx"
  32 #include <algorithm>
  33 #include <string.h>
  34
  35 using ::com::sun::star::uno::Exception;
  36 using ::com::sun::star::uno::Reference;
  37 using ::com::sun::star::io::XInputStream;
  38
  39 namespace oox {
  40 namespace vml {
  41
  42 // ============================================================================
  43
  44 StreamDataContainer::StreamDataContainer( const Reference< XInputStream >& rxInStrm )
  45 {
  46     if( rxInStrm.is() ) try
  47     {
  48         // read all bytes we can read
  49         rxInStrm->readBytes( maDataSeq, SAL_MAX_INT32 );
  50     }
  51     catch( Exception& )
  52     {
  53     }
  54
  55     // parse the data and eat all parser instructions that make expat sad
  56     if( maDataSeq.hasElements() )
  57     {
  58         sal_Char* pcBeg = reinterpret_cast< sal_Char* >( maDataSeq.getArray() );
  59         sal_Char* pcEnd = pcBeg + maDataSeq.getLength();
  60         sal_Char* pcCurr = pcBeg;
  61         while( pcCurr < pcEnd )
  62         {
  63             pcCurr = ::std::find( pcCurr, pcEnd, '<' );
  64             sal_Char* pcClose = ::std::find( pcCurr, pcEnd, '>' );
  65             if( (pcCurr < pcEnd) && (pcClose < pcEnd) && (pcClose - pcCurr >= 5) && (pcCurr[ 1 ] == '!') && (pcCurr[ 2 ] == '[') && (pcClose[ -1 ] == ']') )
  66             {
  67                 ++pcClose;
  68                 memmove( pcCurr, pcClose, pcEnd - pcClose );
  69                 pcEnd -= (pcClose - pcCurr);
  70             }
  71             else
  72                 pcCurr = pcClose;
  73         }
  74         maDataSeq.realloc( static_cast< sal_Int32 >( pcEnd - pcBeg ) );
  75     }
  76 }
  77
  78 // ============================================================================
  79
  80 InputStream::InputStream( const Reference< XInputStream >& rxInStrm ) :
  81     StreamDataContainer( rxInStrm ),
  82     ::comphelper::SequenceInputStream( maDataSeq )
  83 {
  84 }
  85
  86 InputStream::~InputStream()
  87 {
  88 }
  89
  90 // ============================================================================
  91
  92 } // namespace vml
  93 } // namespave oox
  94