| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 "ElemUse.hpp" |
| |
| |
| |
| #include <cassert> |
| |
| |
| |
| #include "xercesc/sax/AttributeList.hpp" |
| |
| |
| |
| #include "xalanc/PlatformSupport/StringTokenizer.hpp" |
| |
| |
| |
| #include "Constants.hpp" |
| #include "ElemAttributeSet.hpp" |
| #include "StylesheetRoot.hpp" |
| #include "StylesheetConstructionContext.hpp" |
| |
| |
| |
| namespace XALAN_CPP_NAMESPACE { |
| |
| |
| |
| /** |
| * This acts as a superclass for ElemCopy, ElemAttributeSet, |
| * ElemElement, and ElemLiteralResult, on order to implement |
| * shared behavior the use-attribute-sets attribute. |
| */ |
| ElemUse::ElemUse( |
| StylesheetConstructionContext& constructionContext, |
| Stylesheet& stylesheetTree, |
| XalanFileLoc lineNumber, |
| XalanFileLoc columnNumber, |
| int xslToken) : |
| ElemTemplateElement(constructionContext, |
| stylesheetTree, |
| lineNumber, |
| columnNumber, |
| xslToken), |
| m_attributeSetsNames(0), |
| m_attributeSetsNamesCount(0) |
| { |
| } |
| |
| |
| |
| ElemUse::~ElemUse() |
| { |
| } |
| |
| |
| |
| const XalanDOMString& |
| ElemUse::getElementName() const |
| { |
| return s_emptyString; |
| } |
| |
| |
| |
| void |
| ElemUse::postConstruction( |
| StylesheetConstructionContext& constructionContext, |
| const NamespacesHandler& theParentHandler) |
| { |
| if (m_attributeSetsNamesCount > 0) |
| { |
| canGenerateAttributes(true); |
| } |
| |
| // OK, now we can chain-up... |
| ElemTemplateElement::postConstruction(constructionContext, theParentHandler); |
| } |
| |
| |
| #if !defined(XALAN_RECURSIVE_STYLESHEET_EXECUTION) |
| const ElemTemplateElement* |
| ElemUse::startElement(StylesheetExecutionContext& executionContext) const |
| { |
| if (m_attributeSetsNamesCount > 0) |
| { |
| assert(canGenerateAttributes() == true); |
| |
| executionContext.pushInvoker(this); |
| |
| executionContext.createUseAttributeSetIndexesOnStack(); |
| |
| return getNextAttributeSet(executionContext); |
| } |
| |
| return 0; |
| |
| } |
| |
| |
| |
| void |
| ElemUse::endElement(StylesheetExecutionContext& executionContext) const |
| { |
| if (m_attributeSetsNamesCount > 0) |
| { |
| executionContext.popInvoker(); |
| |
| executionContext.popUseAttributeSetIndexesFromStack(); |
| } |
| } |
| |
| |
| |
| const ElemTemplateElement* |
| ElemUse::getNextChildElemToExecute( |
| StylesheetExecutionContext& executionContext, |
| const ElemTemplateElement* currentElem) const |
| { |
| const ElemTemplateElement* nextElement = 0; |
| |
| if (m_attributeSetsNamesCount > 0) |
| { |
| nextElement = getNextAttributeSet(executionContext); |
| } |
| |
| // no more attribute sets, check for next child element |
| if (0 == nextElement) |
| { |
| nextElement = ElemTemplateElement::getNextChildElemToExecute(executionContext, currentElem); |
| } |
| |
| // if next element to execute is the first child after executing attribute set(s), |
| // evalute the element's AVTs first |
| if (0 == nextElement && currentElem->getXSLToken() == StylesheetConstructionContext::ELEMNAME_ATTRIBUTE_SET) |
| { |
| evaluateAVTs(executionContext); |
| nextElement = ElemTemplateElement::getFirstChildElemToExecute(executionContext); |
| } |
| |
| return nextElement; |
| } |
| |
| |
| |
| const ElemTemplateElement* |
| ElemUse::getFirstChildElemToExecute(StylesheetExecutionContext& executionContext) const |
| { |
| assert(executionContext.getCurrentNode() != 0); |
| |
| const ElemTemplateElement* nextElement = 0; |
| |
| if (getXSLToken() != StylesheetConstructionContext::ELEMNAME_COPY || |
| executionContext.getCurrentNode()->getNodeType() == XalanNode::ELEMENT_NODE) |
| { |
| if (m_attributeSetsNamesCount > 0) |
| { |
| // reset |
| executionContext.getUseAttributeSetIndexes().attributeSetNameIndex = 0; |
| executionContext.getUseAttributeSetIndexes().matchingAttributeSetIndex = 0; |
| |
| nextElement = getNextAttributeSet(executionContext); |
| } |
| else |
| { |
| evaluateAVTs(executionContext); |
| } |
| } |
| |
| if (0 == nextElement) |
| { |
| nextElement = ElemTemplateElement::getFirstChildElemToExecute(executionContext); |
| } |
| |
| return nextElement; |
| } |
| |
| |
| |
| const ElemTemplateElement* |
| ElemUse::getNextAttributeSet( |
| StylesheetExecutionContext& executionContext) const |
| { |
| const StylesheetRoot& theStylesheetRoot = getStylesheet().getStylesheetRoot(); |
| |
| StylesheetExecutionContext::UseAttributeSetIndexes& useAttributeSetIndexes = |
| executionContext.getUseAttributeSetIndexes(); |
| |
| const ElemTemplateElement* attributeSet = 0; |
| |
| while (0 == attributeSet && |
| useAttributeSetIndexes.attributeSetNameIndex < m_attributeSetsNamesCount) |
| { |
| attributeSet = theStylesheetRoot.getAttributeSet( |
| executionContext, |
| *m_attributeSetsNames[useAttributeSetIndexes.attributeSetNameIndex], |
| useAttributeSetIndexes.matchingAttributeSetIndex++, |
| getLocator()); |
| |
| if (0 == attributeSet) |
| { |
| |
| useAttributeSetIndexes.attributeSetNameIndex++; |
| useAttributeSetIndexes.matchingAttributeSetIndex = 0; |
| } |
| } |
| |
| return attributeSet; |
| |
| } |
| |
| |
| |
| void |
| ElemUse::evaluateAVTs(StylesheetExecutionContext& /*executionContext*/) const |
| { |
| } |
| #endif |
| |
| |
| #if defined(XALAN_RECURSIVE_STYLESHEET_EXECUTION) |
| void |
| ElemUse::execute(StylesheetExecutionContext& executionContext) const |
| { |
| doExecute(executionContext, true); |
| } |
| |
| |
| |
| void |
| ElemUse::doExecute( |
| StylesheetExecutionContext& executionContext, |
| bool applyAttributeSets) const |
| { |
| assert(m_attributeSetsNamesCount == 0 || m_attributeSetsNames != 0); |
| |
| ElemTemplateElement::execute(executionContext); |
| |
| if(applyAttributeSets == true && m_attributeSetsNamesCount > 0) |
| { |
| assert(canGenerateAttributes() == true); |
| |
| const StylesheetRoot& theStylesheetRoot = getStylesheet().getStylesheetRoot(); |
| const Locator* const theLocator = getLocator(); |
| |
| for(size_type i = 0; i < m_attributeSetsNamesCount; ++i) |
| { |
| theStylesheetRoot.executeAttributeSet(executionContext, *m_attributeSetsNames[i], theLocator); |
| } |
| } |
| } |
| #endif |
| |
| |
| |
| bool |
| ElemUse::processUseAttributeSets( |
| StylesheetConstructionContext& constructionContext, |
| const XalanDOMChar* attrName, |
| const AttributeListType& atts, |
| XalanSize_t which) |
| { |
| bool isUAS = false; |
| |
| if(StylesheetConstructionContext::ELEMNAME_LITERAL_RESULT == getXSLToken()) |
| { |
| isUAS = constructionContext.isXSLUseAttributeSetsAttribute( |
| attrName, |
| getStylesheet(), |
| getLocator()); |
| } |
| else |
| { |
| isUAS = equals(attrName, Constants::ATTRNAME_USEATTRIBUTESETS); |
| } |
| |
| if(isUAS == true) |
| { |
| m_attributeSetsNames = |
| constructionContext.tokenizeQNames( |
| m_attributeSetsNamesCount, |
| atts.getValue(which), |
| getStylesheet().getNamespaces(), |
| getLocator()); |
| assert(m_attributeSetsNamesCount == 0 || m_attributeSetsNames != 0); |
| } |
| |
| return isUAS; |
| } |
| |
| |
| |
| } |