xmlparser.cpp
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上传日期:2009-03-27
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- /*****************************************************************************
- * xmlparser.cpp
- *****************************************************************************
- * Copyright (C) 2004 VideoLAN
- * $Id: xmlparser.cpp 7328 2004-04-12 17:08:58Z asmax $
- *
- * Authors: Cyril Deguet <asmax@via.ecp.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- #include "xmlparser.hpp"
- XMLParser::XMLParser( intf_thread_t *pIntf, const string &rFileName ):
- SkinObject( pIntf )
- {
- m_pReader = xmlNewTextReaderFilename( rFileName.c_str() );
- if( !m_pReader )
- {
- msg_Err( getIntf(), "Failed to open %s for parsing",
- rFileName.c_str() );
- return;
- }
- // Activate DTD validation
- xmlTextReaderSetParserProp( m_pReader, XML_PARSER_DEFAULTATTRS, 1 );
- xmlTextReaderSetParserProp( m_pReader, XML_PARSER_VALIDATE, 1 );
- // Set the error handler
- xmlTextReaderSetErrorHandler( m_pReader, handleError, this );
- }
- XMLParser::~XMLParser()
- {
- if( m_pReader )
- {
- xmlFreeTextReader( m_pReader );
- }
- }
- bool XMLParser::parse()
- {
- if( !m_pReader )
- {
- return false;
- }
- m_errors = false;
- int ret = xmlTextReaderRead( m_pReader );
- while (ret == 1)
- {
- if( m_errors )
- {
- return false;
- }
- // Get the node type
- int type = xmlTextReaderNodeType( m_pReader );
- switch (type )
- {
- // Error
- case -1:
- return false;
- break;
- // Begin element
- case 1:
- {
- // Read the element name
- const xmlChar *eltName = xmlTextReaderConstName( m_pReader );
- if( !eltName )
- {
- return false;
- }
- // Read the attributes
- AttrList_t attributes;
- while( xmlTextReaderMoveToNextAttribute( m_pReader ) == 1 )
- {
- const xmlChar *name = xmlTextReaderConstName( m_pReader );
- const xmlChar *value = xmlTextReaderConstValue( m_pReader );
- if( !name || !value )
- {
- return false;
- }
- attributes[(const char*)name] = (const char*)value;
- }
- handleBeginElement( (const char*)eltName, attributes);
- break;
- }
- // End element
- case 15:
- // Read the element name
- const xmlChar *eltName = xmlTextReaderConstName( m_pReader );
- if( !eltName )
- {
- return false;
- }
- handleEndElement( (const char*)eltName );
- break;
- }
- ret = xmlTextReaderRead( m_pReader );
- }
- return (ret == 0 && !m_errors );
- }
- void XMLParser::handleError( void *pArg, const char *pMsg,
- xmlParserSeverities severity,
- xmlTextReaderLocatorPtr locator)
- {
- XMLParser *pThis = (XMLParser*)pArg;
- int line = xmlTextReaderLocatorLineNumber( locator );
- msg_Err( pThis->getIntf(), "XML parser error (line %d) : %s", line, pMsg );
- pThis->m_errors = true;
- }
-