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/*
* 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 "ElemElement.hpp"
#include <xercesc/sax/AttributeList.hpp>
#include <xalanc/PlatformSupport/XalanMessageLoader.hpp>
#include <xalanc/DOMSupport/DOMServices.hpp>
#include "AVT.hpp"
#include "Constants.hpp"
#include "Stylesheet.hpp"
#include "StylesheetConstructionContext.hpp"
#include "StylesheetExecutionContext.hpp"
namespace XALAN_CPP_NAMESPACE {
ElemElement::ElemElement(
StylesheetConstructionContext& constructionContext,
Stylesheet& stylesheetTree,
const AttributeListType& atts,
XalanFileLoc lineNumber,
XalanFileLoc columnNumber) :
ElemUse(constructionContext,
stylesheetTree,
lineNumber,
columnNumber,
StylesheetConstructionContext::ELEMNAME_ELEMENT),
m_nameAVT(0),
m_namespaceAVT(0)
{
// Namespace aliases are not used for xsl:element, so
// turn them off...
// m_namespacesHandler.setProcessNamespaceAliaises(false);
const XalanSize_t nAttrs = atts.getLength();
for (XalanSize_t i = 0; i < nAttrs; i++)
{
const XalanDOMChar* const aname = atts.getName(i);
if(equals(aname, Constants::ATTRNAME_NAME))
{
m_nameAVT =
constructionContext.createAVT(getLocator(), aname, atts.getValue(i), *this);
}
else if(equals(aname, Constants::ATTRNAME_NAMESPACE))
{
m_namespaceAVT =
constructionContext.createAVT(getLocator(), aname, atts.getValue(i), *this);
}
else if(processUseAttributeSets(
constructionContext,
aname,
atts,
i) == false &&
processSpaceAttr(
Constants::ELEMNAME_ELEMENT_WITH_PREFIX_STRING.c_str(),
aname,
atts,
i,
constructionContext) == false &&
isAttrOK(
aname,
atts,
i,
constructionContext) == false)
{
error(
constructionContext,
XalanMessages::ElementHasIllegalAttribute_2Param,
Constants::ELEMNAME_ELEMENT_WITH_PREFIX_STRING.c_str(),
aname);
}
}
if(0 == m_nameAVT)
{
error(
constructionContext,
XalanMessages::ElementMustHaveAttribute_2Param,
Constants::ELEMNAME_ELEMENT_WITH_PREFIX_STRING,
Constants::ATTRNAME_NAME);
}
}
ElemElement::~ElemElement()
{
}
const XalanDOMString&
ElemElement::getElementName() const
{
return Constants::ELEMNAME_ELEMENT_WITH_PREFIX_STRING;
}
typedef const StylesheetExecutionContext::GetCachedString GetCachedString;
#if !defined(XALAN_RECURSIVE_STYLESHEET_EXECUTION)
const ElemTemplateElement*
ElemElement::startElement(StylesheetExecutionContext& executionContext) const
{
XalanDOMString& elemName = executionContext.getAndPushCachedString();
m_nameAVT->evaluate(elemName, *this, executionContext);
bool isIllegalElement = !XalanQName::isValidQName(elemName);
if (isIllegalElement == true)
{
warn(
executionContext,
XalanMessages::IllegalElementName_1Param,
elemName);
executionContext.pushSkipElementAttributes(true);
}
else
{
const GetCachedString elemNameSpaceGuard(executionContext);
XalanDOMString& elemNameSpace = elemNameSpaceGuard.get();
if (m_namespaceAVT != 0)
{
m_namespaceAVT->evaluate(elemNameSpace, *this, executionContext);
}
XalanDOMString::size_type namespaceLen = elemNameSpace.length();
XalanDOMString::size_type len = elemName.length();
const XalanDOMString::size_type indexOfNSSep = indexOf(elemName, XalanUnicode::charColon);
const bool havePrefix = indexOfNSSep == len ? false : true;
const GetCachedString prefixGuard(executionContext);
XalanDOMString& prefix = prefixGuard.get();
if (havePrefix == true)
{
substring(elemName, prefix, 0, indexOfNSSep);
const XalanDOMString* const theNamespace =
getNamespacesHandler().getNamespace(prefix);
if(theNamespace == 0 && namespaceLen == 0)
{
warn(
executionContext,
XalanMessages::PrefixIsNotDeclared_1Param,
prefix);
if (m_namespaceAVT != 0)
{
elemName.erase(0, indexOfNSSep + 1);
}
else
{
isIllegalElement = true;
warn(
executionContext,
XalanMessages::IllegalElementName_1Param,
elemName);
}
}
else if (theNamespace != 0 &&
namespaceLen == 0 &&
equals(prefix, DOMServices::s_XMLNamespace) == false)
{
elemNameSpace = *theNamespace;
}
}
if (isIllegalElement == false)
{
executionContext.startElement(elemName.c_str());
if(0 == m_namespaceAVT &&
havePrefix == false )
{
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 (theParentDefaultNamespace.empty() == false ||
executionContext.getResultNamespaceForPrefix(s_emptyString) != 0)
{
executionContext.addResultAttribute(DOMServices::s_XMLNamespace, elemNameSpace);
}
}
}
else
{
const XalanDOMString* const theNamespace =
executionContext.getResultNamespaceForPrefix(prefix);
if (theNamespace == 0 ||
equals(*theNamespace, elemNameSpace) == false)
{
prefix.insert(0, DOMServices::s_XMLNamespaceWithSeparator);
executionContext.addResultAttribute(prefix, elemNameSpace);
}
}
}
}
if (isIllegalElement == true)
{
executionContext.pushSkipElementAttributes(true);
}
else
{
ElemUse::startElement(executionContext);
executionContext.pushSkipElementAttributes(false);
}
}
return beginExecuteChildren(executionContext);
}
void
ElemElement::endElement(StylesheetExecutionContext& executionContext) const
{
endExecuteChildren(executionContext);
bool ignoreAttributeElements = executionContext.popSkipElementAttributes();
const XalanDOMString& elemName = executionContext.getAndPopCachedString();
if (!ignoreAttributeElements)
{
executionContext.endElement(elemName.c_str());
ElemUse::endElement(executionContext);
}
}
bool
ElemElement::executeChildElement(
StylesheetExecutionContext& executionContext,
const ElemTemplateElement* element) const
{
return !(element->getXSLToken() == StylesheetConstructionContext::ELEMNAME_ATTRIBUTE
&& executionContext.getSkipElementAttributes() == true);
}
#endif
#if defined(XALAN_RECURSIVE_STYLESHEET_EXECUTION)
void
ElemElement::execute(StylesheetExecutionContext& executionContext) const
{
const GetCachedString elemNameGuard(executionContext);
XalanDOMString& elemName = elemNameGuard.get();
m_nameAVT->evaluate(elemName, *this, executionContext);
bool isIllegalElement = !XalanQName::isValidQName(elemName);
if (isIllegalElement == true)
{
warn(
executionContext,
XalanMessages::IllegalElementName_1Param,
elemName);
ElemUse::doExecute(executionContext, false);
doExecuteChildren(executionContext, true);
}
else
{
const GetCachedString 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;
const GetCachedString 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)
{
warn(
executionContext,
XalanMessages::PrefixIsNotDeclared_1Param,
prefix);
if (m_namespaceAVT != 0)
{
elemName.erase(0, indexOfNSSep + 1);
}
else
{
isIllegalElement = true;
warn(
executionContext,
XalanMessages::IllegalElementName_1Param,
elemName);
}
}
else if (theNamespace != 0 &&
namespaceLen == 0 &&
equals(prefix, DOMServices::s_XMLNamespace) == false)
{
elemNameSpace = *theNamespace;
}
}
}
if (isIllegalElement == false)
{
executionContext.startElement(elemName.c_str());
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(elemName.c_str());
}
}
}
void
ElemElement::doExecuteChildren(
StylesheetExecutionContext& executionContext,
bool skipAttributeChildren) const
{
if (skipAttributeChildren == false)
{
// If we should execute all children, then just call
// executeChildren()...
executeChildren(executionContext);
}
else
{
StylesheetExecutionContext::PushAndPopElementFrame thePushAndPop(executionContext, this);
for (ElemTemplateElement* node = getFirstChildElem(); node != 0; node = node->getNextSiblingElem())
{
if (node->getXSLToken() != StylesheetConstructionContext::ELEMNAME_ATTRIBUTE)
{
node->execute(executionContext);
}
}
}
}
#endif
void
ElemElement::namespacesPostConstruction(
StylesheetConstructionContext& constructionContext,
const NamespacesHandler& theParentHandler,
NamespacesHandler& theHandler)
{
theHandler.postConstruction(
constructionContext,
false,
getElementName(),
&theParentHandler);
}
void
ElemElement::fixupDefaultNamespace(StylesheetExecutionContext& executionContext) const
{
// OK, now let's check to make sure we don't have to change the default namespace...
const XalanDOMString* const theCurrentDefaultNamespace =
executionContext.getResultNamespaceForPrefix(s_emptyString);
const XalanDOMString* const theElementDefaultNamespace =
getNamespacesHandler().getNamespace(s_emptyString);
if (theCurrentDefaultNamespace != 0)
{
if (theElementDefaultNamespace == 0)
{
// There was no default namespace, so we have to turn the
// current one off.
executionContext.addResultAttribute(DOMServices::s_XMLNamespace, s_emptyString);
}
else if (equals(*theCurrentDefaultNamespace, *theElementDefaultNamespace) == false)
{
// There is a default namespace, but it's different from the current one,
// so we have to change it.
executionContext.addResultAttribute(DOMServices::s_XMLNamespace, *theElementDefaultNamespace);
}
}
else if (theElementDefaultNamespace != 0)
{
executionContext.addResultAttribute(DOMServices::s_XMLNamespace, *theElementDefaultNamespace);
}
}
const XalanDOMString&
ElemElement::getParentDefaultNamespace() const
{
const ElemTemplateElement* const theParent =
getParentNodeElem();
if (theParent == 0)
{
return s_emptyString;
}
else
{
const XalanDOMString* const theParentDefaultNamespace =
theParent->getNamespacesHandler().getNamespace(s_emptyString);
if (theParentDefaultNamespace == 0)
{
return s_emptyString;
}
else
{
return *theParentDefaultNamespace;
}
}
}
}