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898 lines (733 loc) · 24.1 KB
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//
// ParserEngine.cpp
//
// $Id: //poco/1.4/XML/src/ParserEngine.cpp#2 $
//
// Library: XML
// Package: XML
// Module: ParserEngine
//
// Copyright (c) 2004-2007, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/XML/ParserEngine.h"
#include "Poco/XML/NamespaceStrategy.h"
#include "Poco/XML/XMLException.h"
#include "Poco/SAX/EntityResolver.h"
#include "Poco/SAX/EntityResolverImpl.h"
#include "Poco/SAX/DTDHandler.h"
#include "Poco/SAX/DeclHandler.h"
#include "Poco/SAX/ContentHandler.h"
#include "Poco/SAX/LexicalHandler.h"
#include "Poco/SAX/ErrorHandler.h"
#include "Poco/SAX/InputSource.h"
#include "Poco/SAX/Locator.h"
#include "Poco/SAX/LocatorImpl.h"
#include "Poco/SAX/SAXException.h"
#include "Poco/URI.h"
#include <cstring>
using Poco::URI;
using Poco::TextEncoding;
namespace Poco {
namespace XML {
class ContextLocator: public Locator
{
public:
ContextLocator(XML_Parser parser, const XMLString& publicId, const XMLString& systemId):
_parser(parser),
_publicId(publicId),
_systemId(systemId)
{
}
~ContextLocator()
{
}
XMLString getPublicId() const
{
return _publicId;
}
XMLString getSystemId() const
{
return _systemId;
}
int getLineNumber() const
{
return XML_GetCurrentLineNumber(_parser);
}
int getColumnNumber() const
{
return XML_GetCurrentColumnNumber(_parser);
}
private:
XML_Parser _parser;
XMLString _publicId;
XMLString _systemId;
};
const int ParserEngine::PARSE_BUFFER_SIZE = 4096;
const XMLString ParserEngine::EMPTY_STRING;
ParserEngine::ParserEngine():
_parser(0),
_pBuffer(0),
_encodingSpecified(false),
_expandInternalEntities(true),
_externalGeneralEntities(false),
_externalParameterEntities(false),
_enablePartialReads(false),
_pNamespaceStrategy(new NoNamespacesStrategy()),
_pEntityResolver(0),
_pDTDHandler(0),
_pDeclHandler(0),
_pContentHandler(0),
_pLexicalHandler(0),
_pErrorHandler(0)
{
}
ParserEngine::ParserEngine(const XMLString& encoding):
_parser(0),
_pBuffer(0),
_encodingSpecified(true),
_encoding(encoding),
_expandInternalEntities(true),
_externalGeneralEntities(false),
_externalParameterEntities(false),
_enablePartialReads(false),
_pNamespaceStrategy(new NoNamespacesStrategy()),
_pEntityResolver(0),
_pDTDHandler(0),
_pDeclHandler(0),
_pContentHandler(0),
_pLexicalHandler(0),
_pErrorHandler(0)
{
}
ParserEngine::~ParserEngine()
{
resetContext();
if (_parser) XML_ParserFree(_parser);
delete [] _pBuffer;
delete _pNamespaceStrategy;
}
void ParserEngine::setEncoding(const XMLString& encoding)
{
_encoding = encoding;
_encodingSpecified = true;
}
void ParserEngine::addEncoding(const XMLString& name, TextEncoding* pEncoding)
{
poco_check_ptr (pEncoding);
if (_encodings.find(name) == _encodings.end())
_encodings[name] = pEncoding;
else
throw XMLException("Encoding already defined");
}
void ParserEngine::setNamespaceStrategy(NamespaceStrategy* pStrategy)
{
poco_check_ptr (pStrategy);
delete _pNamespaceStrategy;
_pNamespaceStrategy = pStrategy;
}
void ParserEngine::setExpandInternalEntities(bool flag)
{
_expandInternalEntities = flag;
}
void ParserEngine::setExternalGeneralEntities(bool flag)
{
_externalGeneralEntities = flag;
}
void ParserEngine::setExternalParameterEntities(bool flag)
{
_externalParameterEntities = flag;
}
void ParserEngine::setEntityResolver(EntityResolver* pResolver)
{
_pEntityResolver = pResolver;
}
void ParserEngine::setDTDHandler(DTDHandler* pDTDHandler)
{
_pDTDHandler = pDTDHandler;
}
void ParserEngine::setDeclHandler(DeclHandler* pDeclHandler)
{
_pDeclHandler = pDeclHandler;
}
void ParserEngine::setContentHandler(ContentHandler* pContentHandler)
{
_pContentHandler = pContentHandler;
}
void ParserEngine::setLexicalHandler(LexicalHandler* pLexicalHandler)
{
_pLexicalHandler = pLexicalHandler;
}
void ParserEngine::setErrorHandler(ErrorHandler* pErrorHandler)
{
_pErrorHandler = pErrorHandler;
}
void ParserEngine::setEnablePartialReads(bool flag)
{
_enablePartialReads = flag;
}
void ParserEngine::parse(InputSource* pInputSource)
{
init();
resetContext();
pushContext(_parser, pInputSource);
if (_pContentHandler) _pContentHandler->setDocumentLocator(this);
if (_pContentHandler) _pContentHandler->startDocument();
if (pInputSource->getCharacterStream())
parseCharInputStream(*pInputSource->getCharacterStream());
else if (pInputSource->getByteStream())
parseByteInputStream(*pInputSource->getByteStream());
else throw XMLException("Input source has no stream");
if (_pContentHandler) _pContentHandler->endDocument();
popContext();
}
void ParserEngine::parse(const char* pBuffer, std::size_t size)
{
init();
resetContext();
InputSource src;
pushContext(_parser, &src);
if (_pContentHandler) _pContentHandler->setDocumentLocator(this);
if (_pContentHandler) _pContentHandler->startDocument();
std::size_t processed = 0;
while (processed < size)
{
const int bufferSize = processed + PARSE_BUFFER_SIZE < size ? PARSE_BUFFER_SIZE : size - processed;
if (!XML_Parse(_parser, pBuffer + processed, bufferSize, 0))
handleError(XML_GetErrorCode(_parser));
processed += bufferSize;
}
if (!XML_Parse(_parser, pBuffer+processed, 0, 1))
handleError(XML_GetErrorCode(_parser));
if (_pContentHandler) _pContentHandler->endDocument();
popContext();
}
void ParserEngine::parseByteInputStream(XMLByteInputStream& istr)
{
std::streamsize n = readBytes(istr, _pBuffer, PARSE_BUFFER_SIZE);
while (n > 0)
{
if (!XML_Parse(_parser, _pBuffer, static_cast<int>(n), 0))
handleError(XML_GetErrorCode(_parser));
if (istr.good())
n = readBytes(istr, _pBuffer, PARSE_BUFFER_SIZE);
else
n = 0;
}
if (!XML_Parse(_parser, _pBuffer, 0, 1))
handleError(XML_GetErrorCode(_parser));
}
void ParserEngine::parseCharInputStream(XMLCharInputStream& istr)
{
std::streamsize n = readChars(istr, reinterpret_cast<XMLChar*>(_pBuffer), PARSE_BUFFER_SIZE/sizeof(XMLChar));
while (n > 0)
{
if (!XML_Parse(_parser, _pBuffer, static_cast<int>(n*sizeof(XMLChar)), 0))
handleError(XML_GetErrorCode(_parser));
if (istr.good())
n = readChars(istr, reinterpret_cast<XMLChar*>(_pBuffer), PARSE_BUFFER_SIZE/sizeof(XMLChar));
else
n = 0;
}
if (!XML_Parse(_parser, _pBuffer, 0, 1))
handleError(XML_GetErrorCode(_parser));
}
void ParserEngine::parseExternal(XML_Parser extParser, InputSource* pInputSource)
{
pushContext(extParser, pInputSource);
if (pInputSource->getCharacterStream())
parseExternalCharInputStream(extParser, *pInputSource->getCharacterStream());
else if (pInputSource->getByteStream())
parseExternalByteInputStream(extParser, *pInputSource->getByteStream());
else throw XMLException("Input source has no stream");
popContext();
}
void ParserEngine::parseExternalByteInputStream(XML_Parser extParser, XMLByteInputStream& istr)
{
char *pBuffer = new char[PARSE_BUFFER_SIZE];
try
{
std::streamsize n = readBytes(istr, pBuffer, PARSE_BUFFER_SIZE);
while (n > 0)
{
if (!XML_Parse(extParser, pBuffer, static_cast<int>(n), 0))
handleError(XML_GetErrorCode(extParser));
if (istr.good())
n = readBytes(istr, pBuffer, PARSE_BUFFER_SIZE);
else
n = 0;
}
if (!XML_Parse(extParser, pBuffer, 0, 1))
handleError(XML_GetErrorCode(extParser));
}
catch (...)
{
delete [] pBuffer;
throw;
}
delete [] pBuffer;
}
void ParserEngine::parseExternalCharInputStream(XML_Parser extParser, XMLCharInputStream& istr)
{
XMLChar *pBuffer = new XMLChar[PARSE_BUFFER_SIZE/sizeof(XMLChar)];
try
{
std::streamsize n = readChars(istr, pBuffer, PARSE_BUFFER_SIZE/sizeof(XMLChar));
while (n > 0)
{
if (!XML_Parse(extParser, reinterpret_cast<char*>(pBuffer), static_cast<int>(n*sizeof(XMLChar)), 0))
handleError(XML_GetErrorCode(extParser));
if (istr.good())
n = readChars(istr, pBuffer, static_cast<int>(PARSE_BUFFER_SIZE/sizeof(XMLChar)));
else
n = 0;
}
if (!XML_Parse(extParser, reinterpret_cast<char*>(pBuffer), 0, 1))
handleError(XML_GetErrorCode(extParser));
}
catch (...)
{
delete [] pBuffer;
throw;
}
delete [] pBuffer;
}
std::streamsize ParserEngine::readBytes(XMLByteInputStream& istr, char* pBuffer, std::streamsize bufferSize)
{
if (_enablePartialReads)
{
istr.read(pBuffer, 1);
if (istr.gcount() == 1)
{
std::streamsize n = istr.readsome(pBuffer + 1, bufferSize - 1);
return n + 1;
}
else return 0;
}
else
{
istr.read(pBuffer, bufferSize);
return istr.gcount();
}
}
std::streamsize ParserEngine::readChars(XMLCharInputStream& istr, XMLChar* pBuffer, std::streamsize bufferSize)
{
if (_enablePartialReads)
{
istr.read(pBuffer, 1);
if (istr.gcount() == 1)
{
std::streamsize n = istr.readsome(pBuffer + 1, bufferSize - 1);
return n + 1;
}
else return 0;
}
else
{
istr.read(pBuffer, bufferSize);
return istr.gcount();
}
}
XMLString ParserEngine::getPublicId() const
{
return locator().getPublicId();
}
XMLString ParserEngine::getSystemId() const
{
return locator().getSystemId();
}
int ParserEngine::getLineNumber() const
{
return locator().getLineNumber();
}
int ParserEngine::getColumnNumber() const
{
return locator().getColumnNumber();
}
namespace
{
static LocatorImpl nullLocator;
}
const Locator& ParserEngine::locator() const
{
if (_context.empty())
return nullLocator;
else
return *_context.back();
}
void ParserEngine::init()
{
if (_parser)
XML_ParserFree(_parser);
if (!_pBuffer)
_pBuffer = new char[PARSE_BUFFER_SIZE];
if (dynamic_cast<NoNamespacePrefixesStrategy*>(_pNamespaceStrategy))
{
_parser = XML_ParserCreateNS(_encodingSpecified ? _encoding.c_str() : 0, '\t');
if (_parser)
{
XML_SetNamespaceDeclHandler(_parser, handleStartNamespaceDecl, handleEndNamespaceDecl);
}
}
else if (dynamic_cast<NamespacePrefixesStrategy*>(_pNamespaceStrategy))
{
_parser = XML_ParserCreateNS(_encodingSpecified ? _encoding.c_str() : 0, '\t');
if (_parser)
{
XML_SetReturnNSTriplet(_parser, 1);
XML_SetNamespaceDeclHandler(_parser, handleStartNamespaceDecl, handleEndNamespaceDecl);
}
}
else
{
_parser = XML_ParserCreate(_encodingSpecified ? _encoding.c_str() : 0);
}
if (!_parser) throw XMLException("Cannot create Expat parser");
XML_SetUserData(_parser, this);
XML_SetElementHandler(_parser, handleStartElement, handleEndElement);
XML_SetCharacterDataHandler(_parser, handleCharacterData);
XML_SetProcessingInstructionHandler(_parser, handleProcessingInstruction);
if (_expandInternalEntities)
XML_SetDefaultHandlerExpand(_parser, handleDefault);
else
XML_SetDefaultHandler(_parser, handleDefault);
XML_SetUnparsedEntityDeclHandler(_parser, handleUnparsedEntityDecl);
XML_SetNotationDeclHandler(_parser, handleNotationDecl);
XML_SetExternalEntityRefHandler(_parser, handleExternalEntityRef);
XML_SetCommentHandler(_parser, handleComment);
XML_SetCdataSectionHandler(_parser, handleStartCdataSection, handleEndCdataSection);
XML_SetDoctypeDeclHandler(_parser, handleStartDoctypeDecl, handleEndDoctypeDecl);
XML_SetEntityDeclHandler(_parser, handleEntityDecl);
XML_SetSkippedEntityHandler(_parser, handleSkippedEntity);
XML_SetParamEntityParsing(_parser, _externalParameterEntities ? XML_PARAM_ENTITY_PARSING_ALWAYS : XML_PARAM_ENTITY_PARSING_NEVER);
XML_SetUnknownEncodingHandler(_parser, handleUnknownEncoding, this);
}
void ParserEngine::handleError(int errorNo)
{
try
{
switch (errorNo)
{
case XML_ERROR_NO_MEMORY:
throw XMLException("No memory");
case XML_ERROR_SYNTAX:
throw SAXParseException("Syntax error", locator());
case XML_ERROR_NO_ELEMENTS:
throw SAXParseException("No element found", locator());
case XML_ERROR_INVALID_TOKEN:
throw SAXParseException("Invalid token", locator());
case XML_ERROR_UNCLOSED_TOKEN:
throw SAXParseException("Unclosed token", locator());
case XML_ERROR_PARTIAL_CHAR:
throw SAXParseException("Partial character", locator());
case XML_ERROR_TAG_MISMATCH:
throw SAXParseException("Tag mismatch", locator());
case XML_ERROR_DUPLICATE_ATTRIBUTE:
throw SAXParseException("Duplicate attribute", locator());
case XML_ERROR_JUNK_AFTER_DOC_ELEMENT:
throw SAXParseException("Junk after document element", locator());
case XML_ERROR_PARAM_ENTITY_REF:
throw SAXParseException("Illegal parameter entity reference", locator());
case XML_ERROR_UNDEFINED_ENTITY:
throw SAXParseException("Undefined entity", locator());
case XML_ERROR_RECURSIVE_ENTITY_REF:
throw SAXParseException("Recursive entity reference", locator());
case XML_ERROR_ASYNC_ENTITY:
throw SAXParseException("Asynchronous entity", locator());
case XML_ERROR_BAD_CHAR_REF:
throw SAXParseException("Reference to invalid character number", locator());
case XML_ERROR_BINARY_ENTITY_REF:
throw SAXParseException("Reference to binary entity", locator());
case XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF:
throw SAXParseException("Reference to external entity in attribute", locator());
case XML_ERROR_MISPLACED_XML_PI:
throw SAXParseException("XML processing instruction not at start of external entity", locator());
case XML_ERROR_UNKNOWN_ENCODING:
throw SAXParseException("Unknown encoding", locator());
case XML_ERROR_INCORRECT_ENCODING:
throw SAXParseException("Encoding specified in XML declaration is incorrect", locator());
case XML_ERROR_UNCLOSED_CDATA_SECTION:
throw SAXParseException("Unclosed CDATA section", locator());
case XML_ERROR_EXTERNAL_ENTITY_HANDLING:
throw SAXParseException("Error in processing external entity reference", locator());
case XML_ERROR_NOT_STANDALONE:
throw SAXParseException("Document is not standalone", locator());
case XML_ERROR_UNEXPECTED_STATE:
throw SAXParseException("Unexpected parser state - please send a bug report", locator());
case XML_ERROR_ENTITY_DECLARED_IN_PE:
throw SAXParseException("Entity declared in parameter entity", locator());
case XML_ERROR_FEATURE_REQUIRES_XML_DTD:
throw SAXParseException("Requested feature requires XML_DTD support in Expat", locator());
case XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING:
throw SAXParseException("Cannot change setting once parsing has begun", locator());
case XML_ERROR_UNBOUND_PREFIX:
throw SAXParseException("Unbound prefix", locator());
case XML_ERROR_UNDECLARING_PREFIX:
throw SAXParseException("Must not undeclare prefix", locator());
case XML_ERROR_INCOMPLETE_PE:
throw SAXParseException("Incomplete markup in parameter entity", locator());
case XML_ERROR_XML_DECL:
throw SAXParseException("XML declaration not well-formed", locator());
case XML_ERROR_TEXT_DECL:
throw SAXParseException("Text declaration not well-formed", locator());
case XML_ERROR_PUBLICID:
throw SAXParseException("Illegal character(s) in public identifier", locator());
case XML_ERROR_SUSPENDED:
throw SAXParseException("Parser suspended", locator());
case XML_ERROR_NOT_SUSPENDED:
throw SAXParseException("Parser not suspended", locator());
case XML_ERROR_ABORTED:
throw SAXParseException("Parsing aborted", locator());
case XML_ERROR_FINISHED:
throw SAXParseException("Parsing finished", locator());
case XML_ERROR_SUSPEND_PE:
throw SAXParseException("Cannot suspend in external parameter entity", locator());
}
throw XMLException("Unknown Expat error code");
}
catch (SAXException& exc)
{
if (_pErrorHandler) _pErrorHandler->error(exc);
throw;
}
catch (Poco::Exception& exc)
{
if (_pErrorHandler) _pErrorHandler->fatalError(SAXParseException("Fatal error", locator(), exc));
throw;
}
}
void ParserEngine::pushContext(XML_Parser parser, InputSource* pInputSource)
{
ContextLocator* pLocator = new ContextLocator(parser, pInputSource->getPublicId(), pInputSource->getSystemId());
_context.push_back(pLocator);
}
void ParserEngine::popContext()
{
poco_assert (!_context.empty());
delete _context.back();
_context.pop_back();
}
void ParserEngine::resetContext()
{
for (ContextStack::iterator it = _context.begin(); it != _context.end(); ++it)
{
delete *it;
}
_context.clear();
}
void ParserEngine::handleStartElement(void* userData, const XML_Char* name, const XML_Char** atts)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
if (pThis->_pContentHandler)
{
try
{
pThis->_pNamespaceStrategy->startElement(name, atts, XML_GetSpecifiedAttributeCount(pThis->_parser)/2, pThis->_pContentHandler);
}
catch (XMLException& exc)
{
throw SAXParseException(exc.message(), pThis->locator());
}
}
}
void ParserEngine::handleEndElement(void* userData, const XML_Char* name)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
if (pThis->_pContentHandler)
{
try
{
pThis->_pNamespaceStrategy->endElement(name, pThis->_pContentHandler);
}
catch (XMLException& exc)
{
throw SAXParseException(exc.message(), pThis->locator());
}
}
}
void ParserEngine::handleCharacterData(void* userData, const XML_Char* s, int len)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
if (pThis->_pContentHandler)
pThis->_pContentHandler->characters(s, 0, len);
}
void ParserEngine::handleProcessingInstruction(void* userData, const XML_Char* target, const XML_Char* data)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
if (pThis->_pContentHandler)
pThis->_pContentHandler->processingInstruction(target, data);
}
void ParserEngine::handleDefault(void* userData, const XML_Char* s, int len)
{
}
void ParserEngine::handleUnparsedEntityDecl(void* userData, const XML_Char* entityName, const XML_Char* base, const XML_Char* systemId, const XML_Char* publicId, const XML_Char* notationName)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
XMLString pubId;
if (publicId) pubId.assign(publicId);
if (pThis->_pDTDHandler)
pThis->_pDTDHandler->unparsedEntityDecl(entityName, publicId ? &pubId : 0, systemId, notationName);
}
void ParserEngine::handleNotationDecl(void* userData, const XML_Char* notationName, const XML_Char* base, const XML_Char* systemId, const XML_Char* publicId)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
XMLString pubId;
if (publicId) pubId.assign(publicId);
XMLString sysId;
if (systemId) sysId.assign(systemId);
if (pThis->_pDTDHandler)
pThis->_pDTDHandler->notationDecl(notationName, publicId ? &pubId : 0, systemId ? &sysId : 0);
}
int ParserEngine::handleExternalEntityRef(XML_Parser parser, const XML_Char* context, const XML_Char* base, const XML_Char* systemId, const XML_Char* publicId)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(XML_GetUserData(parser));
if (!context && !pThis->_externalParameterEntities) return XML_STATUS_ERROR;
if (context && !pThis->_externalGeneralEntities) return XML_STATUS_ERROR;
InputSource* pInputSource = 0;
EntityResolver* pEntityResolver = 0;
EntityResolverImpl defaultResolver;
XMLString sysId(systemId);
XMLString pubId;
if (publicId) pubId.assign(publicId);
URI uri(fromXMLString(pThis->_context.back()->getSystemId()));
uri.resolve(fromXMLString(sysId));
if (pThis->_pEntityResolver)
{
pEntityResolver = pThis->_pEntityResolver;
pInputSource = pEntityResolver->resolveEntity(publicId ? &pubId : 0, toXMLString(uri.toString()));
}
if (!pInputSource && pThis->_externalGeneralEntities)
{
pEntityResolver = &defaultResolver;
pInputSource = pEntityResolver->resolveEntity(publicId ? &pubId : 0, toXMLString(uri.toString()));
}
if (pInputSource)
{
XML_Parser extParser = XML_ExternalEntityParserCreate(pThis->_parser, context, 0);
if (!extParser) throw XMLException("Cannot create external entity parser");
try
{
pThis->parseExternal(extParser, pInputSource);
}
catch (XMLException&)
{
pEntityResolver->releaseInputSource(pInputSource);
XML_ParserFree(extParser);
throw;
}
pEntityResolver->releaseInputSource(pInputSource);
XML_ParserFree(extParser);
return XML_STATUS_OK;
}
else return XML_STATUS_ERROR;
}
int ParserEngine::handleUnknownEncoding(void* encodingHandlerData, const XML_Char* name, XML_Encoding* info)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(encodingHandlerData);
XMLString encoding(name);
TextEncoding* knownEncoding = 0;
EncodingMap::const_iterator it = pThis->_encodings.find(encoding);
if (it != pThis->_encodings.end())
knownEncoding = it->second;
else
knownEncoding = Poco::TextEncoding::find(fromXMLString(encoding));
if (knownEncoding)
{
const TextEncoding::CharacterMap& map = knownEncoding->characterMap();
for (int i = 0; i < 256; ++i)
info->map[i] = map[i];
info->data = knownEncoding;
info->convert = &ParserEngine::convert;
info->release = 0;
return XML_STATUS_OK;
}
else return XML_STATUS_ERROR;
}
void ParserEngine::handleComment(void* userData, const XML_Char* data)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
#if defined(XML_UNICODE_WCHAR_T)
if (pThis->_pLexicalHandler)
pThis->_pLexicalHandler->comment(data, 0, (int) std::wcslen(data));
#else
if (pThis->_pLexicalHandler)
pThis->_pLexicalHandler->comment(data, 0, (int) std::strlen(data));
#endif
}
void ParserEngine::handleStartCdataSection(void* userData)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
if (pThis->_pLexicalHandler)
pThis->_pLexicalHandler->startCDATA();
}
void ParserEngine::handleEndCdataSection(void* userData)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
if (pThis->_pLexicalHandler)
pThis->_pLexicalHandler->endCDATA();
}
void ParserEngine::handleStartNamespaceDecl(void* userData, const XML_Char* prefix, const XML_Char* uri)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
if (pThis->_pContentHandler)
pThis->_pContentHandler->startPrefixMapping((prefix ? XMLString(prefix) : EMPTY_STRING), (uri ? XMLString(uri) : EMPTY_STRING));
}
void ParserEngine::handleEndNamespaceDecl(void* userData, const XML_Char* prefix)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
if (pThis->_pContentHandler)
pThis->_pContentHandler->endPrefixMapping(prefix ? XMLString(prefix) : EMPTY_STRING);
}
void ParserEngine::handleStartDoctypeDecl(void* userData, const XML_Char* doctypeName, const XML_Char *systemId, const XML_Char* publicId, int hasInternalSubset)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
if (pThis->_pLexicalHandler)
{
XMLString sysId = systemId ? XMLString(systemId) : EMPTY_STRING;
XMLString pubId = publicId ? XMLString(publicId) : EMPTY_STRING;
pThis->_pLexicalHandler->startDTD(doctypeName, pubId, sysId);
}
}
void ParserEngine::handleEndDoctypeDecl(void* userData)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
if (pThis->_pLexicalHandler)
pThis->_pLexicalHandler->endDTD();
}
void ParserEngine::handleEntityDecl(void *userData, const XML_Char *entityName, int isParamEntity, const XML_Char *value, int valueLength,
const XML_Char *base, const XML_Char *systemId, const XML_Char *publicId, const XML_Char *notationName)
{
if (value)
handleInternalParsedEntityDecl(userData, entityName, value, valueLength);
else
handleExternalParsedEntityDecl(userData, entityName, base, systemId, publicId);
}
void ParserEngine::handleExternalParsedEntityDecl(void* userData, const XML_Char* entityName, const XML_Char* base, const XML_Char* systemId, const XML_Char* publicId)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
XMLString pubId;
if (publicId) pubId.assign(publicId);
if (pThis->_pDeclHandler)
pThis->_pDeclHandler->externalEntityDecl(entityName, publicId ? &pubId : 0, systemId);
}
void ParserEngine::handleInternalParsedEntityDecl(void* userData, const XML_Char* entityName, const XML_Char* replacementText, int replacementTextLength)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
XMLString replText(replacementText, replacementTextLength);
if (pThis->_pDeclHandler)
pThis->_pDeclHandler->internalEntityDecl(entityName, replText);
}
void ParserEngine::handleSkippedEntity(void* userData, const XML_Char* entityName, int isParameterEntity)
{
ParserEngine* pThis = reinterpret_cast<ParserEngine*>(userData);
if (pThis->_pContentHandler)
pThis->_pContentHandler->skippedEntity(entityName);
}
int ParserEngine::convert(void* data, const char* s)
{
TextEncoding* pEncoding = reinterpret_cast<TextEncoding*>(data);
return pEncoding->convert((const unsigned char*) s);
}
} } // namespace Poco::XML
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