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240 lines (184 loc) · 5.78 KB
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//
// SAXParser.cpp
//
// $Id: //poco/1.4/XML/src/SAXParser.cpp#1 $
//
// Library: XML
// Package: SAX
// Module: SAX
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/SAX/SAXParser.h"
#include "Poco/SAX/SAXException.h"
#include "Poco/SAX/EntityResolverImpl.h"
#include "Poco/SAX/InputSource.h"
#include "Poco/XML/NamespaceStrategy.h"
#include <sstream>
namespace Poco {
namespace XML {
const XMLString SAXParser::FEATURE_PARTIAL_READS = toXMLString("http://www.appinf.com/features/enable-partial-reads");
SAXParser::SAXParser():
_namespaces(true),
_namespacePrefixes(false)
{
}
SAXParser::SAXParser(const XMLString& encoding):
_engine(encoding),
_namespaces(true),
_namespacePrefixes(false)
{
}
SAXParser::~SAXParser()
{
}
void SAXParser::setEncoding(const XMLString& encoding)
{
_engine.setEncoding(encoding);
}
const XMLString& SAXParser::getEncoding() const
{
return _engine.getEncoding();
}
void SAXParser::addEncoding(const XMLString& name, Poco::TextEncoding* pEncoding)
{
_engine.addEncoding(name, pEncoding);
}
void SAXParser::setEntityResolver(EntityResolver* pResolver)
{
_engine.setEntityResolver(pResolver);
}
EntityResolver* SAXParser::getEntityResolver() const
{
return _engine.getEntityResolver();
}
void SAXParser::setDTDHandler(DTDHandler* pDTDHandler)
{
_engine.setDTDHandler(pDTDHandler);
}
DTDHandler* SAXParser::getDTDHandler() const
{
return _engine.getDTDHandler();
}
void SAXParser::setContentHandler(ContentHandler* pContentHandler)
{
_engine.setContentHandler(pContentHandler);
}
ContentHandler* SAXParser::getContentHandler() const
{
return _engine.getContentHandler();
}
void SAXParser::setErrorHandler(ErrorHandler* pErrorHandler)
{
_engine.setErrorHandler(pErrorHandler);
}
ErrorHandler* SAXParser::getErrorHandler() const
{
return _engine.getErrorHandler();
}
void SAXParser::setFeature(const XMLString& featureId, bool state)
{
if (featureId == XMLReader::FEATURE_VALIDATION || featureId == XMLReader::FEATURE_STRING_INTERNING)
throw SAXNotSupportedException(fromXMLString(XMLReader::FEATURE_VALIDATION));
else if (featureId == XMLReader::FEATURE_EXTERNAL_GENERAL_ENTITIES)
_engine.setExternalGeneralEntities(state);
else if (featureId == XMLReader::FEATURE_EXTERNAL_PARAMETER_ENTITIES)
_engine.setExternalParameterEntities(state);
else if (featureId == XMLReader::FEATURE_NAMESPACES)
_namespaces = state;
else if (featureId == XMLReader::FEATURE_NAMESPACE_PREFIXES)
_namespacePrefixes = state;
else if (featureId == FEATURE_PARTIAL_READS)
_engine.setEnablePartialReads(state);
else throw SAXNotRecognizedException(fromXMLString(featureId));
}
bool SAXParser::getFeature(const XMLString& featureId) const
{
if (featureId == XMLReader::FEATURE_VALIDATION || featureId == XMLReader::FEATURE_STRING_INTERNING)
throw SAXNotSupportedException(fromXMLString(XMLReader::FEATURE_VALIDATION));
else if (featureId == XMLReader::FEATURE_EXTERNAL_GENERAL_ENTITIES)
return _engine.getExternalGeneralEntities();
else if (featureId == XMLReader::FEATURE_EXTERNAL_PARAMETER_ENTITIES)
return _engine.getExternalParameterEntities();
else if (featureId == XMLReader::FEATURE_NAMESPACES)
return _namespaces;
else if (featureId == XMLReader::FEATURE_NAMESPACE_PREFIXES)
return _namespacePrefixes;
else if (featureId == FEATURE_PARTIAL_READS)
return _engine.getEnablePartialReads();
else throw SAXNotRecognizedException(fromXMLString(featureId));
}
void SAXParser::setProperty(const XMLString& propertyId, const XMLString& value)
{
if (propertyId == XMLReader::PROPERTY_DECLARATION_HANDLER || propertyId == XMLReader::PROPERTY_LEXICAL_HANDLER)
throw SAXNotSupportedException(std::string("property does not take a string value: ") + fromXMLString(propertyId));
else
throw SAXNotRecognizedException(fromXMLString(propertyId));
}
void SAXParser::setProperty(const XMLString& propertyId, void* value)
{
if (propertyId == XMLReader::PROPERTY_DECLARATION_HANDLER)
_engine.setDeclHandler(reinterpret_cast<DeclHandler*>(value));
else if (propertyId == XMLReader::PROPERTY_LEXICAL_HANDLER)
_engine.setLexicalHandler(reinterpret_cast<LexicalHandler*>(value));
else throw SAXNotRecognizedException(fromXMLString(propertyId));
}
void* SAXParser::getProperty(const XMLString& propertyId) const
{
if (propertyId == XMLReader::PROPERTY_DECLARATION_HANDLER)
return _engine.getDeclHandler();
else if (propertyId == XMLReader::PROPERTY_LEXICAL_HANDLER)
return _engine.getLexicalHandler();
else throw SAXNotSupportedException(fromXMLString(propertyId));
}
void SAXParser::parse(InputSource* pInputSource)
{
if (pInputSource->getByteStream() || pInputSource->getCharacterStream())
{
setupParse();
_engine.parse(pInputSource);
}
else parse(pInputSource->getSystemId());
}
void SAXParser::parse(const XMLString& systemId)
{
setupParse();
EntityResolverImpl entityResolver;
InputSource* pInputSource = entityResolver.resolveEntity(0, systemId);
if (pInputSource)
{
try
{
_engine.parse(pInputSource);
}
catch (...)
{
entityResolver.releaseInputSource(pInputSource);
throw;
}
entityResolver.releaseInputSource(pInputSource);
}
else throw XMLException("Cannot resolve system identifier", fromXMLString(systemId));
}
void SAXParser::parseString(const std::string& xml)
{
parseMemoryNP(xml.data(), xml.size());
}
void SAXParser::parseMemoryNP(const char* xml, std::size_t size)
{
setupParse();
_engine.parse(xml, size);
}
void SAXParser::setupParse()
{
if (_namespaces && !_namespacePrefixes)
_engine.setNamespaceStrategy(new NoNamespacePrefixesStrategy);
else if (_namespaces && _namespacePrefixes)
_engine.setNamespaceStrategy(new NamespacePrefixesStrategy);
else
_engine.setNamespaceStrategy(new NoNamespacesStrategy);
}
} } // namespace Poco::XML