Пример #1
0
void
ElemElement::execute(StylesheetExecutionContext&		executionContext) const
{
	StylesheetExecutionContext::GetAndReleaseCachedString	elemNameGuard(executionContext);

	XalanDOMString&		elemName = elemNameGuard.get();

	m_nameAVT->evaluate(elemName, *this, executionContext);

	bool	isIllegalElement = !XalanQName::isValidQName(elemName);

	if (isIllegalElement == true)
	{
		executionContext.warn(
			XalanMessageLoader::getMessage(XalanMessages::IllegalElementName_1Param, elemName),
			executionContext.getCurrentNode(),
			getLocator());

		ElemUse::doExecute(executionContext, false);

		doExecuteChildren(executionContext, true);
	}
	else
	{
		StylesheetExecutionContext::GetAndReleaseCachedString	elemNameSpaceGuard(executionContext);

		XalanDOMString&		elemNameSpace = elemNameSpaceGuard.get();

		if (m_namespaceAVT != 0)
		{
			m_namespaceAVT->evaluate(elemNameSpace, *this, executionContext);
		}

		XalanDOMString::size_type	namespaceLen = length(elemNameSpace);

		bool	foundResultNamespaceForPrefix = false;

		XalanDOMString::size_type			len = length(elemName);

		const XalanDOMString::size_type		indexOfNSSep = indexOf(elemName, XalanUnicode::charColon);

		const bool	havePrefix = indexOfNSSep == len ? false : true;

		StylesheetExecutionContext::GetAndReleaseCachedString	prefixGuard(executionContext);

		XalanDOMString&		prefix = prefixGuard.get();

		if (havePrefix == true)
		{
			substring(elemName, prefix, 0, indexOfNSSep);

			const XalanDOMString* const		theNamespace =
				executionContext.getResultNamespaceForPrefix(prefix);

			if (theNamespace != 0)
			{
				foundResultNamespaceForPrefix = true;
			}
			else
			{
				const XalanDOMString* const		theNamespace =
					getNamespacesHandler().getNamespace(prefix);

				if(theNamespace == 0 && namespaceLen == 0)
				{
					executionContext.warn(
						XalanMessageLoader::getMessage(
							XalanMessages::CannotResolvePrefix_1Param,
							prefix),
						executionContext.getCurrentNode(),
						getLocator());

					if (m_namespaceAVT != 0)
					{
						elemName.erase(0, indexOfNSSep + 1);
					}
					else
					{
						isIllegalElement = true;

						executionContext.warn(
							XalanMessageLoader::getMessage(
								XalanMessages::IllegalElementName_1Param,
								elemName),
							executionContext.getCurrentNode(),
							getLocator());
					}
				}
				else if (theNamespace != 0 &&
						 namespaceLen == 0 &&
						 equals(prefix, DOMServices::s_XMLNamespace) == false)
				{
					elemNameSpace = *theNamespace;
				}
			}
		}

		if (isIllegalElement == false)
		{
			executionContext.startElement(c_wstr(elemName));   

			if(0 == m_namespaceAVT &&
			   (havePrefix == false || foundResultNamespaceForPrefix == true))
			{
				if (havePrefix == false)
				{
					fixupDefaultNamespace(executionContext);
				}
			}
			else
			{
				if(havePrefix == false)
				{
					if (namespaceLen > 0)
					{
						const XalanDOMString* const		theDefaultNamespace =
								executionContext.getResultNamespaceForPrefix(s_emptyString);

						if (theDefaultNamespace == 0 ||
							equals(*theDefaultNamespace, elemNameSpace) == false)
						{
							executionContext.addResultAttribute(
									DOMServices::s_XMLNamespace,
									elemNameSpace);
						}
					}
					else
					{
						// OK, the namespace we're generating is the default namespace,
						// so let's make sure that we really need it.  If we don't,
						// we end up with another xmlns="" on the element we're
						// generating.  Although this isn't really an error, it's
						// a bit unsightly, so let's suppress it...
						const XalanDOMString&	theParentDefaultNamespace =
								getParentDefaultNamespace();

						if (length(theParentDefaultNamespace) == 0)
						{
							if (executionContext.getResultNamespaceForPrefix(s_emptyString) != 0)
							{
								executionContext.addResultAttribute(DOMServices::s_XMLNamespace, elemNameSpace);
							}
						}
						else
						{
							executionContext.addResultAttribute(DOMServices::s_XMLNamespace, elemNameSpace);
						}
					}
				}
				else
				{
					const XalanDOMString* const		theNamespace =
							executionContext.getResultNamespaceForPrefix(prefix);

					if (theNamespace == 0 ||
						equals(*theNamespace, elemNameSpace) == false)
					{
						insert(prefix, 0, DOMServices::s_XMLNamespaceWithSeparator);

						executionContext.addResultAttribute(prefix, elemNameSpace);
					}
				}
			}
		}

		if (isIllegalElement == true)
		{
			ElemUse::doExecute(executionContext, false);

			doExecuteChildren(executionContext, true);
		}
		else
		{
			ElemUse::doExecute(executionContext, true);

			doExecuteChildren(executionContext, false);

			executionContext.endElement(c_wstr(elemName));
		}
	}
}
Пример #2
0
void
ElemForEach::transformSelectedChildren(
			StylesheetExecutionContext&		executionContext,
			const ElemTemplateElement*		theTemplate) const
{
	assert(m_selectPattern != 0);
	assert(m_sortElemsCount == m_sortElems.size());

	if (m_sortElemsCount == 0)
	{
		selectAndSortChildren(
					executionContext,
					theTemplate,
					0,
					executionContext.getCurrentStackFrameIndex());
	}
	else
	{
		typedef NodeSorter::NodeSortKeyVectorType					NodeSortKeyVectorType;
		typedef StylesheetExecutionContext::BorrowReturnNodeSorter	BorrowReturnNodeSorter;

		BorrowReturnNodeSorter	sorter(executionContext);

		NodeSortKeyVectorType&	keys = sorter->getSortKeys();
		assert(keys.empty() == true);

		CollectionClearGuard<NodeSortKeyVectorType>		guard(keys);

		// Reserve the space now...
		keys.reserve(m_sortElemsCount);

		// 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 < m_sortElemsCount; i++)
		{
			const ElemSort* const	sort = m_sortElems[i];
			assert(sort != 0);

			const AVT* avt = sort->getLangAVT();

			if(0 != avt)
			{
				avt->evaluate(langString, *this, executionContext);
			}

			avt = sort->getDataTypeAVT();

			if(0 != avt)
			{
				avt->evaluate(scratchString, *this, executionContext);
			}			

			bool	treatAsNumbers = false;

			if (isEmpty(scratchString) == false)
			{
				if (equals(scratchString, Constants::ATTRVAL_DATATYPE_NUMBER) == true)
				{
					treatAsNumbers = true;
				}
				else if (equals(scratchString, Constants::ATTRVAL_DATATYPE_TEXT) == false)
				{
					const XalanQNameByValue		theQName(scratchString, this);

					if (theQName.getNamespace().length() == 0)
					{
						executionContext.error(
							XalanMessageLoader::getMessage(XalanMessages::XslSortDataTypeMustBe),
							executionContext.getCurrentNode(),
							sort->getLocator());
					}
					else
					{
						executionContext.warn(
							XalanMessageLoader::getMessage(XalanMessages::XslSortHasUnlnownDataType),
							executionContext.getCurrentNode(),
							sort->getLocator());
					}
				}
			}

			clear(scratchString);

			avt = sort->getOrderAVT();

			if(0 != avt)
			{
				avt->evaluate(scratchString, *this, executionContext);
			}			

			bool	descending = false;
			
			if (isEmpty(scratchString) == false)
			{
				if (equals(scratchString, Constants::ATTRVAL_ORDER_DESCENDING) == true)
				{
					descending = true;
				}
				else if (equals(scratchString, Constants::ATTRVAL_ORDER_ASCENDING) == false)
				{
					executionContext.error(
						XalanMessageLoader::getMessage(XalanMessages::XslSortMustBeAscendOrDescend),
						executionContext.getCurrentNode(),
						sort->getLocator());
				}
			}

			clear(scratchString);

			avt = sort->getCaseOrderAVT();

			if(0 != avt)
			{
				avt->evaluate(scratchString, *this, executionContext);
			}			

			XalanCollationServices::eCaseOrder	caseOrder = XalanCollationServices::eDefault;

			if (isEmpty(scratchString) == false)
			{
				if (equals(scratchString, Constants::ATTRVAL_CASEORDER_UPPER) == true)
				{
					caseOrder = XalanCollationServices::eUpperFirst;
				}
				else if (equals(scratchString, Constants::ATTRVAL_CASEORDER_LOWER) == true)
				{
					caseOrder = XalanCollationServices::eLowerFirst;
				}
				else
				{
					executionContext.error(
						XalanMessageLoader::getMessage(XalanMessages::XslSortCaseOrderMustBe),
						executionContext.getCurrentNode(),
						sort->getLocator());
				}
			}

			clear(scratchString);

			keys.push_back(
					NodeSortKey(
						executionContext,
						sort->getSelectPattern(),
						treatAsNumbers,
						descending,
						caseOrder,
						langString,
						*this));
		}

		selectAndSortChildren(
					executionContext,
					theTemplate,
					sorter.get(),
					executionContext.getCurrentStackFrameIndex());
	}
}