| /* |
| * Copyright 1999-2004 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "XalanSourceTreeContentHandler.hpp" |
| |
| |
| |
| #include <xalanc/XalanDOM/XalanDOMException.hpp> |
| |
| |
| |
| #include <xalanc/PlatformSupport/DOMStringHelper.hpp> |
| |
| |
| |
| #include "XalanSourceTreeDocument.hpp" |
| #include "XalanSourceTreeElement.hpp" |
| #include "XalanSourceTreeHelper.hpp" |
| |
| |
| |
| XALAN_CPP_NAMESPACE_BEGIN |
| |
| |
| |
| XalanSourceTreeContentHandler::XalanSourceTreeContentHandler( |
| XalanSourceTreeDocument* theDocument, |
| bool fAccumulateText) : |
| ContentHandler(), |
| DTDHandler(), |
| LexicalHandler(), |
| m_document(theDocument), |
| m_currentElement(0), |
| m_elementStack(), |
| m_lastChild(0), |
| m_lastChildStack(), |
| m_accumulateText(fAccumulateText), |
| m_textBuffer(), |
| m_inDTD(false) |
| { |
| } |
| |
| |
| |
| XalanSourceTreeContentHandler::~XalanSourceTreeContentHandler() |
| { |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::characters( |
| const XMLCh* const chars, |
| const unsigned int length) |
| { |
| assert(m_inDTD == false); |
| |
| if (m_currentElement == 0) |
| { |
| if (isXMLWhitespace(chars) == false) |
| { |
| throw XalanDOMException(XalanDOMException::HIERARCHY_REQUEST_ERR); |
| } |
| } |
| else if (m_accumulateText == true) |
| { |
| append(m_textBuffer, chars, length); |
| } |
| else |
| { |
| doCharacters(chars, length); |
| } |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::endDocument() |
| { |
| assert(m_inDTD == false); |
| |
| // Pop off the dummy value that we pushed in |
| // startDocument()... |
| m_elementStack.pop_back(); |
| |
| assert(m_document->getDocumentElement() != 0); |
| |
| assert(m_elementStack.empty() == true); |
| assert(m_lastChildStack.empty() == true); |
| |
| assert(isEmpty(m_textBuffer) == true); |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::endElement( |
| const XMLCh* const /* uri */, |
| const XMLCh* const /* localname */, |
| const XMLCh* const /* qname */) |
| { |
| assert(m_inDTD == false); |
| |
| // Process any text that we may have accumulated... |
| processAccumulatedText(); |
| |
| assert(m_elementStack.empty() == false); |
| |
| // Pop the stack... |
| m_elementStack.pop_back(); |
| |
| assert(m_elementStack.empty() == false); |
| |
| // Get the element from the back of the |
| // stack. |
| m_currentElement = m_elementStack.back(); |
| |
| assert(m_lastChildStack.empty() == false); |
| |
| m_lastChild = m_lastChildStack.back(); |
| |
| // Pop the last child stack |
| m_lastChildStack.pop_back(); |
| } |
| |
| |
| |
| // A helper function to manage appending the new child. |
| template <class ParentNodeType, class ChildNodeType> |
| inline void |
| doAppendChildNode( |
| ParentNodeType* theParent, |
| XalanNode*& theLastChild, |
| ChildNodeType theNewChild) |
| { |
| assert(theParent != 0); |
| assert(theNewChild != 0); |
| |
| if (theLastChild == 0) |
| { |
| theParent->appendChildNode(theNewChild); |
| } |
| else |
| { |
| XalanSourceTreeHelper::appendSibling(theLastChild, theNewChild); |
| } |
| |
| theLastChild = theNewChild; |
| } |
| |
| |
| |
| // A helper function to manage appending the new child. |
| template <class ChildNodeType> |
| inline void |
| doAppendChildNode( |
| XalanSourceTreeDocument* theDocument, |
| XalanSourceTreeElement* theCurrentElement, |
| XalanNode*& theLastChild, |
| ChildNodeType theNewChild) |
| { |
| assert(theDocument != 0); |
| assert(theNewChild != 0); |
| |
| if (theCurrentElement == 0) |
| { |
| // If there is no current element. it means we haven't |
| // created the document element yet, so always append |
| // to the document, rather than the last child. |
| theDocument->appendChildNode(theNewChild); |
| } |
| else |
| { |
| doAppendChildNode(theCurrentElement, theLastChild, theNewChild); |
| } |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::ignorableWhitespace( |
| const XMLCh* const chars, |
| const unsigned int length) |
| { |
| assert(m_inDTD == false); |
| |
| // Ignore any whitespace reported before the document element has been parsed. |
| if (m_elementStack.empty() == false) |
| { |
| assert(m_currentElement != 0); |
| |
| processAccumulatedText(); |
| |
| XalanSourceTreeText* theNewTextNode = |
| m_document->createTextIWSNode(chars, length, m_currentElement); |
| |
| doAppendChildNode(m_currentElement, m_lastChild, theNewTextNode); |
| } |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::processingInstruction( |
| const XMLCh* const target, |
| const XMLCh* const data) |
| { |
| assert(m_inDTD == false); |
| |
| processAccumulatedText(); |
| |
| XalanSourceTreeProcessingInstruction* const theNewPI = |
| m_document->createProcessingInstructionNode(target, data, m_currentElement); |
| |
| doAppendChildNode( |
| m_document, |
| m_currentElement, |
| m_lastChild, |
| theNewPI); |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::setDocumentLocator(const LocatorType* const /* locator */) |
| { |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::startDocument() |
| { |
| assert(m_inDTD == false); |
| |
| m_currentElement = 0; |
| |
| m_elementStack.clear(); |
| |
| m_elementStack.reserve(eDefaultStackSize); |
| |
| m_lastChild = 0; |
| |
| m_lastChildStack.clear(); |
| |
| m_lastChildStack.reserve(eDefaultStackSize); |
| |
| if (m_accumulateText == true) |
| { |
| clear(m_textBuffer); |
| |
| reserve(m_textBuffer, eDefaultTextBufferSize); |
| } |
| |
| // Push a dummy value for the current element, so we |
| // don't have to check for an empty stack in endElement(). |
| m_elementStack.push_back(ElementStackType::value_type(0)); |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::startElement( |
| const XMLCh* const uri, |
| const XMLCh* const localname, |
| const XMLCh* const qname, |
| const AttributesType& attrs) |
| { |
| #if 0 |
| assert(m_inDTD == false); |
| #else |
| if (m_inDTD == true) |
| { |
| m_inDTD = false; |
| } |
| #endif |
| |
| processAccumulatedText(); |
| |
| XalanSourceTreeElement* const theNewElement = |
| createElement(uri, localname, qname, attrs, m_currentElement); |
| |
| doAppendChildNode( |
| m_document, |
| m_currentElement, |
| m_lastChild, |
| theNewElement); |
| |
| m_elementStack.push_back(theNewElement); |
| |
| m_lastChildStack.push_back(m_lastChild); |
| |
| m_currentElement = theNewElement; |
| |
| m_lastChild = 0; |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::startPrefixMapping( |
| const XMLCh* const /* prefix */, |
| const XMLCh* const /* uri */) |
| { |
| assert(m_inDTD == false); |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::endPrefixMapping(const XMLCh* const /* prefix */) |
| { |
| assert(m_inDTD == false); |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::skippedEntity(const XMLCh* const /* name */) |
| { |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::notationDecl( |
| const XMLCh* const /* name */, |
| const XMLCh* const /* publicId */, |
| const XMLCh* const /* systemId */) |
| { |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::unparsedEntityDecl( |
| const XMLCh* const name, |
| const XMLCh* const publicId, |
| const XMLCh* const systemId, |
| const XMLCh* const notationName) |
| { |
| assert(m_document != 0); |
| |
| m_document->unparsedEntityDeclaration(name, publicId, systemId, notationName); |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::resetDocType() |
| { |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::comment( |
| const XMLCh* const chars, |
| const unsigned int length) |
| { |
| assert(m_document != 0); |
| |
| if (m_inDTD == false) |
| { |
| processAccumulatedText(); |
| |
| XalanSourceTreeComment* const theNewComment = |
| m_document->createCommentNode(chars, length, m_currentElement); |
| |
| doAppendChildNode( |
| m_document, |
| m_currentElement, |
| m_lastChild, |
| theNewComment); |
| } |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::endCDATA() |
| { |
| assert(m_inDTD == false); |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::endDTD() |
| { |
| assert(m_document != 0); |
| // assert(m_inDTD == true); |
| |
| m_inDTD = false; |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::endEntity(const XMLCh* const /* name */) |
| { |
| assert(m_document != 0); |
| } |
| |
| |
| void |
| XalanSourceTreeContentHandler::startCDATA() |
| { |
| assert(m_inDTD == false); |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::startDTD( |
| const XMLCh* const /* name */, |
| const XMLCh* const /* publicId */, |
| const XMLCh* const /* systemId */) |
| { |
| assert(m_inDTD == false); |
| assert(m_document != 0); |
| |
| m_inDTD = true; |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::startEntity(const XMLCh* const /* name */) |
| { |
| assert(m_document != 0); |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::setDocument(XalanSourceTreeDocument* theDocument) |
| { |
| m_document = theDocument; |
| } |
| |
| |
| |
| XalanSourceTreeElement* |
| XalanSourceTreeContentHandler::createElement( |
| const XMLCh* const uri, |
| const XMLCh* const localname, |
| const XMLCh* const qname, |
| const AttributesType& attrs, |
| XalanSourceTreeElement* theOwnerElement) |
| { |
| assert(m_inDTD == false); |
| |
| // If we're creating the document element, add the special xml namespace attribute... |
| const bool fAddXMLNamespaceAttribute = theOwnerElement == 0 ? true : false; |
| |
| if (length(uri) != 0) |
| { |
| return m_document->createElementNode(uri, localname, qname, attrs, theOwnerElement, 0, 0, fAddXMLNamespaceAttribute); |
| } |
| else |
| { |
| return m_document->createElementNode(qname, attrs, theOwnerElement, 0, 0, fAddXMLNamespaceAttribute); |
| } |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::processAccumulatedText() |
| { |
| assert(m_inDTD == false); |
| |
| if (isEmpty(m_textBuffer) == false) |
| { |
| assert(unsigned(length(m_textBuffer)) == length(m_textBuffer)); |
| |
| doCharacters(c_wstr(m_textBuffer), length(m_textBuffer)); |
| |
| clear(m_textBuffer); |
| } |
| } |
| |
| |
| |
| void |
| XalanSourceTreeContentHandler::doCharacters( |
| const XMLCh* chars, |
| XalanDOMString::size_type length) |
| { |
| assert(m_inDTD == false); |
| |
| assert(m_currentElement != 0); |
| |
| XalanSourceTreeText* theNewTextNode = |
| m_document->createTextNode(chars, length, m_currentElement); |
| |
| doAppendChildNode(m_currentElement, m_lastChild, theNewTextNode); |
| } |
| |
| |
| |
| XALAN_CPP_NAMESPACE_END |