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214 lines (164 loc) · 4.13 KB
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//
// WhitespaceFilter.cpp
//
// $Id: //poco/1.4/XML/src/WhitespaceFilter.cpp#1 $
//
// Library: XML
// Package: SAX
// Module: WhitespaceFilter
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/SAX/WhitespaceFilter.h"
#include "Poco/SAX/SAXException.h"
namespace Poco {
namespace XML {
WhitespaceFilter::WhitespaceFilter():
_pLexicalHandler(0),
_filter(true)
{
}
WhitespaceFilter::WhitespaceFilter(XMLReader* pReader):
XMLFilterImpl(pReader),
_pLexicalHandler(0),
_filter(true)
{
}
WhitespaceFilter::~WhitespaceFilter()
{
}
void WhitespaceFilter::setProperty(const XMLString& propertyId, const XMLString& value)
{
if (propertyId == XMLReader::PROPERTY_LEXICAL_HANDLER)
throw SAXNotSupportedException(std::string("property does not take a string value: ") + fromXMLString(propertyId));
else
XMLFilterImpl::setProperty(propertyId, value);
}
void WhitespaceFilter::setProperty(const XMLString& propertyId, void* value)
{
if (propertyId == XMLReader::PROPERTY_LEXICAL_HANDLER)
_pLexicalHandler = reinterpret_cast<LexicalHandler*>(value);
else
XMLFilterImpl::setProperty(propertyId, value);
}
void* WhitespaceFilter::getProperty(const XMLString& propertyId) const
{
if (propertyId == XMLReader::PROPERTY_LEXICAL_HANDLER)
return _pLexicalHandler;
else
return XMLFilterImpl::getProperty(propertyId);
}
void WhitespaceFilter::startDocument()
{
XMLFilterImpl::startDocument();
_filter = true;
_data.clear();
}
void WhitespaceFilter::endDocument()
{
XMLFilterImpl::endDocument();
_filter = true;
_data.clear();
}
void WhitespaceFilter::startElement(const XMLString& uri, const XMLString& localName, const XMLString& qname, const Attributes& attrList)
{
XMLFilterImpl::startElement(uri, localName, qname, attrList);
_filter = true;
_data.clear();
}
void WhitespaceFilter::endElement(const XMLString& uri, const XMLString& localName, const XMLString& qname)
{
XMLFilterImpl::endElement(uri, localName, qname);
_filter = true;
_data.clear();
}
void WhitespaceFilter::characters(const XMLChar ch[], int start, int length)
{
if (_filter)
{
bool ws = true;
const XMLChar* it = ch + start;
const XMLChar* end = ch + start + length;
_data.append(it, end);
while (it != end)
{
if (*it != '\r' && *it != '\n' && *it != '\t' && *it != ' ')
{
ws = false;
break;
}
++it;
}
if (!ws)
{
XMLFilterImpl::characters(_data.data(), 0, (int) _data.length());
_filter = false;
_data.clear();
}
}
else XMLFilterImpl::characters(ch, start, length);
}
void WhitespaceFilter::ignorableWhitespace(const XMLChar ch[], int start, int length)
{
// the handler name already says that this data can be ignored
}
void WhitespaceFilter::processingInstruction(const XMLString& target, const XMLString& data)
{
XMLFilterImpl::processingInstruction(target, data);
_filter = true;
_data.clear();
}
void WhitespaceFilter::startDTD(const XMLString& name, const XMLString& publicId, const XMLString& systemId)
{
if (_pLexicalHandler)
_pLexicalHandler->startDTD(name, publicId, systemId);
}
void WhitespaceFilter::endDTD()
{
if (_pLexicalHandler)
_pLexicalHandler->endDTD();
}
void WhitespaceFilter::startEntity(const XMLString& name)
{
if (_pLexicalHandler)
_pLexicalHandler->startEntity(name);
_filter = true;
_data.clear();
}
void WhitespaceFilter::endEntity(const XMLString& name)
{
if (_pLexicalHandler)
_pLexicalHandler->endEntity(name);
_filter = true;
_data.clear();
}
void WhitespaceFilter::startCDATA()
{
if (_pLexicalHandler)
_pLexicalHandler->startCDATA();
_filter = false;
_data.clear();
}
void WhitespaceFilter::endCDATA()
{
if (_pLexicalHandler)
_pLexicalHandler->endCDATA();
_filter = true;
_data.clear();
}
void WhitespaceFilter::comment(const XMLChar ch[], int start, int length)
{
if (_pLexicalHandler)
_pLexicalHandler->comment(ch, start, length);
_filter = true;
_data.clear();
}
void WhitespaceFilter::setupParse()
{
XMLFilterImpl::setupParse();
parent()->setProperty(XMLReader::PROPERTY_LEXICAL_HANDLER, static_cast<LexicalHandler*>(this));
}
} } // namespace Poco::XML