DOMPrintFilter.cpp
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- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2002 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Xerces" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their featName, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation, and was
- * originally based on software copyright (c) 1999, International
- * Business Machines, Inc., http://www.ibm.com . For more information
- * on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- /*
- * $Id: DOMPrintFilter.cpp,v 1.3 2002/06/04 14:22:51 peiyongz Exp $
- * $Log: DOMPrintFilter.cpp,v $
- * Revision 1.3 2002/06/04 14:22:51 peiyongz
- * Implement setter/getter from DOMWriterFilter
- *
- * Revision 1.2 2002/06/03 22:40:07 peiyongz
- * *** empty log message ***
- *
- * Revision 1.1 2002/05/29 13:33:32 peiyongz
- * DOM3 Save Interface: DOMWriter/DOMWriterFilter
- *
- */
- #include "DOMPrintFilter.hpp"
- #include <xercesc/util/XMLUniDefs.hpp>
- #include <xercesc/util/XMLString.hpp>
- static const XMLCh element_person[]=
- {
- chLatin_p, chLatin_e, chLatin_r, chLatin_s, chLatin_o, chLatin_n, chNull
- };
- static const XMLCh element_link[]=
- {
- chLatin_l, chLatin_i, chLatin_n, chLatin_k, chNull
- };
- DOMPrintFilter::DOMPrintFilter(unsigned long whatToShow)
- :fWhatToShow(whatToShow)
- {}
- short DOMPrintFilter::acceptNode(const DOMNode* node) const
- {
- //
- // The DOMWriter shall call getWhatToShow() before calling
- // acceptNode(), to show nodes which are supposed to be
- // shown to this filter.
- //
- // REVISIT: In case the DOMWriter does not follow the protocol,
- // Shall the filter honour, or NOT, what it claimes
- // (when it is constructed/setWhatToShow())
- // it is interested in ?
- //
- // The DOMLS specs does not specify that acceptNode() shall do
- // this way, or not, so it is up the implementation,
- // to skip the code below for the sake of performance ...
- //
- if ((getWhatToShow() & (1 << (node->getNodeType() - 1))) == 0)
- return DOMNodeFilter::FILTER_ACCEPT;
- switch (node->getNodeType())
- {
- case DOMNode::ELEMENT_NODE:
- {
- // for element whose name is "person", skip it
- if (XMLString::compareString(node->getNodeName(), element_person)==0)
- return DOMNodeFilter::FILTER_SKIP;
- // for element whose name is "line", reject it
- if (XMLString::compareString(node->getNodeName(), element_link)==0)
- return DOMNodeFilter::FILTER_REJECT;
- // for rest, accept it
- return DOMNodeFilter::FILTER_ACCEPT;
- break;
- }
- case DOMNode::COMMENT_NODE:
- {
- // the WhatToShow will make this no effect
- return DOMNodeFilter::FILTER_REJECT;
- break;
- }
- case DOMNode::TEXT_NODE:
- {
- // the WhatToShow will make this no effect
- return DOMNodeFilter::FILTER_REJECT;
- break;
- }
- case DOMNode::DOCUMENT_TYPE_NODE:
- {
- // even we say we are going to process document type,
- // we are not able be to see this node since
- // DOMWriterImpl (a XercesC's default implementation
- // of DOMWriter) will not pass DocumentType node to
- // this filter.
- //
- return DOMNodeFilter::FILTER_REJECT; // no effect
- break;
- }
- case DOMNode::DOCUMENT_NODE:
- {
- // same as DOCUMENT_NODE
- return DOMNodeFilter::FILTER_REJECT; // no effect
- break;
- }
- default :
- {
- return DOMNodeFilter::FILTER_ACCEPT;
- break;
- }
- }
- return DOMNodeFilter::FILTER_ACCEPT;
- }