| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 1999 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xalan" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 1999, International |
| * Business Machines, Inc., http://www.ibm.com. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| #include "ElemForEach.hpp" |
| |
| |
| |
| #include <algorithm> |
| #include <cassert> |
| |
| |
| |
| #include <xercesc/sax/AttributeList.hpp> |
| |
| |
| |
| #include <Include/STLHelper.hpp> |
| |
| |
| |
| #include <PlatformSupport/DOMStringHelper.hpp> |
| |
| |
| |
| #include "ElemSort.hpp" |
| #include "NodeSorter.hpp" |
| #include "StylesheetConstructionContext.hpp" |
| #include "StylesheetExecutionContext.hpp" |
| |
| |
| |
| ElemForEach::ElemForEach( |
| StylesheetConstructionContext& constructionContext, |
| Stylesheet& stylesheetTree, |
| const AttributeList& atts, |
| int lineNumber, |
| int columnNumber) : |
| ElemTemplateElement(constructionContext, |
| stylesheetTree, |
| lineNumber, |
| columnNumber, |
| Constants::ELEMNAME_FOREACH), |
| m_selectPattern(0) |
| { |
| const unsigned int nAttrs = atts.getLength(); |
| |
| for(unsigned int i = 0; i < nAttrs; i++) |
| { |
| const XalanDOMChar* const aname = atts.getName(i); |
| |
| if(equals(aname, Constants::ATTRNAME_SELECT)) |
| { |
| m_selectPattern = constructionContext.createXPath(getLocator(), atts.getValue(i), *this); |
| } |
| else if(!(isAttrOK(aname, atts, i, constructionContext) || |
| processSpaceAttr(aname, atts, i, constructionContext))) |
| { |
| constructionContext.error( |
| "xsl:for-each has an illegal attribute", |
| 0, |
| this); |
| } |
| } |
| |
| if(0 == m_selectPattern) |
| { |
| constructionContext.error( |
| "xsl:for-each must have a 'select' attribute", |
| 0, |
| this); |
| } |
| } |
| |
| |
| |
| ElemForEach::ElemForEach( |
| StylesheetConstructionContext& constructionContext, |
| Stylesheet& stylesheetTree, |
| int lineNumber, |
| int columnNumber, |
| int xslToken) : |
| ElemTemplateElement(constructionContext, |
| stylesheetTree, |
| lineNumber, |
| columnNumber, |
| xslToken), |
| m_selectPattern(0) |
| { |
| } |
| |
| |
| |
| ElemForEach::~ElemForEach() |
| { |
| #if !defined(XALAN_NO_NAMESPACES) |
| using std::for_each; |
| #endif |
| |
| for_each(m_sortElems.begin(), |
| m_sortElems.end(), |
| DeleteFunctor<ElemSort>()); |
| } |
| |
| |
| |
| const XalanDOMString& |
| ElemForEach::getElementName() const |
| { |
| return Constants::ELEMNAME_FOREACH_WITH_PREFIX_STRING; |
| } |
| |
| |
| |
| void |
| ElemForEach::execute(StylesheetExecutionContext& executionContext) const |
| { |
| assert(m_selectPattern != 0); |
| |
| StylesheetExecutionContext::SetAndRestoreCurrentTemplate theSetAndRestore(executionContext, 0); |
| |
| if (hasChildren() == true) |
| { |
| XalanNode* const sourceNode = executionContext.getCurrentNode(); |
| |
| if (sourceNode != 0) |
| { |
| transformSelectedChildren( |
| executionContext, |
| this, |
| sourceNode, |
| executionContext.getCurrentStackFrameIndex()); |
| } |
| else |
| { |
| executionContext.error( |
| "There is no current node in ElemForEach::execute()!", |
| sourceNode, |
| this); |
| } |
| } |
| } |
| |
| |
| |
| void |
| ElemForEach::transformSelectedChildren( |
| StylesheetExecutionContext& executionContext, |
| const ElemTemplateElement* theTemplate, |
| XalanNode* sourceNodeContext, |
| int selectStackFrameIndex) const |
| { |
| const SortElemsVectorType& sortElements = getSortElems(); |
| const SortElemsVectorType::size_type nChildren = sortElements.size(); |
| |
| if (nChildren == 0) |
| { |
| ElemTemplateElement::transformSelectedChildren( |
| executionContext, |
| *this, |
| theTemplate, |
| sourceNodeContext, |
| *m_selectPattern, |
| 0, |
| selectStackFrameIndex); |
| } |
| else |
| { |
| typedef NodeSorter::NodeSortKeyVectorType NodeSortKeyVectorType; |
| typedef StylesheetExecutionContext::BorrowReturnNodeSorter BorrowReturnNodeSorter; |
| |
| BorrowReturnNodeSorter sorter(executionContext); |
| |
| NodeSortKeyVectorType& keys = sorter->getSortKeys(); |
| assert(keys.size() == 0); |
| |
| CollectionClearGuard<NodeSortKeyVectorType> guard(keys); |
| |
| // Reserve the space now... |
| keys.reserve(nChildren); |
| |
| // Get some temporary strings to use for evaluting the AVTs... |
| XPathExecutionContext::GetAndReleaseCachedString theTemp1(executionContext); |
| |
| XalanDOMString& langString = theTemp1.get(); |
| |
| XPathExecutionContext::GetAndReleaseCachedString theTemp2(executionContext); |
| |
| XalanDOMString& scratchString = theTemp2.get(); |
| |
| // March backwards, performing a sort on each xsl:sort child. |
| // Probably not the most efficient method. |
| for(SortElemsVectorType::size_type i = 0; i < nChildren; i++) |
| { |
| const ElemSort* const sort = sortElements[i]; |
| assert(sort != 0); |
| |
| const AVT* avt = sort->getLangAVT(); |
| |
| if(0 != avt) |
| { |
| avt->evaluate(langString, sourceNodeContext, *this, executionContext); |
| } |
| |
| avt = sort->getDataTypeAVT(); |
| |
| if(0 != avt) |
| { |
| avt->evaluate(scratchString, sourceNodeContext, *this, executionContext); |
| } |
| |
| const bool treatAsNumbers = !isEmpty(scratchString) && equals(scratchString, Constants::ATTRVAL_DATATYPE_NUMBER) ? |
| true : false; |
| |
| clear(scratchString); |
| |
| avt = sort->getOrderAVT(); |
| |
| if(0 != avt) |
| { |
| avt->evaluate(scratchString, sourceNodeContext, *this, executionContext); |
| } |
| |
| const bool descending = !isEmpty(scratchString) && equals(scratchString, Constants::ATTRVAL_ORDER_DESCENDING) ? |
| true : false; |
| |
| clear(scratchString); |
| |
| assert(sort->getSelectPattern() != 0); |
| |
| keys.push_back( |
| NodeSortKey( |
| executionContext, |
| *sort->getSelectPattern(), |
| treatAsNumbers, |
| descending, |
| langString, |
| *this)); |
| } |
| |
| ElemTemplateElement::transformSelectedChildren( |
| executionContext, |
| *this, |
| theTemplate, |
| sourceNodeContext, |
| *m_selectPattern, |
| sorter.get(), |
| selectStackFrameIndex); |
| } |
| } |