XObjectPtr
FunctionFormatNumber::execute(
XPathExecutionContext& executionContext,
XalanNode* context,
const XObjectPtr arg1,
const XObjectPtr arg2,
const XObjectPtr arg3,
const LocatorType* locator) const
{
assert(arg1.null() == false && arg2.null() == false && arg3.null() == false);
const double theNumber = arg1->num();
const XalanDOMString& thePattern = arg2->str();
const XalanDOMString& theDFSName = arg3->str();
assert(length(theDFSName) != 0);
typedef XPathExecutionContext::GetAndReleaseCachedString GetAndReleaseCachedString;
GetAndReleaseCachedString theString(executionContext);
executionContext.formatNumber(
theNumber,
thePattern,
theDFSName,
theString.get(),
context,
locator);
return executionContext.getXObjectFactory().createString(theString);
}
XObjectPtr
FunctionSubstringBefore::execute(
XPathExecutionContext& executionContext,
XalanNode* /* context */,
const XObjectPtr arg1,
const XObjectPtr arg2,
const LocatorType* /* locator */) const
{
assert(arg1.null() == false && arg2.null() == false);
const XalanDOMString& theFirstString = arg1->str();
const XalanDOMString::size_type theFirstStringLength = length(theFirstString);
if (theFirstStringLength == 0)
{
return createEmptyString(executionContext);
}
else
{
const XalanDOMString& theSecondString = arg2->str();
const XalanDOMString::size_type theSecondStringLength = length(theSecondString);
if (theSecondStringLength == 0)
{
return createEmptyString(executionContext);
}
else
{
const XalanDOMString::size_type theIndex = indexOf(theFirstString,
theSecondString);
if (theIndex == theFirstStringLength)
{
return createEmptyString(executionContext);
}
else
{
XPathExecutionContext::GetAndReleaseCachedString theResult(executionContext);
XalanDOMString& theString = theResult.get();
theString.assign(
toCharArray(theFirstString),
theIndex);
// Create a string of the appropriate length...
return executionContext.getXObjectFactory().createString(theResult);
}
}
}
}
XObjectPtr
FunctionSubstring::execute(
XPathExecutionContext& executionContext,
XalanNode* context,
const XObjectPtr arg1,
const XObjectPtr arg2,
const LocatorType* locator) const
{
assert(arg1.null() == false && arg2.null() == false);
return execute(executionContext, context, arg1, arg2, s_nullXObjectPtr, locator);
}
/*
* Get the total of the second and third arguments.
*/
inline double
getTotal(
XalanDOMString::size_type theSourceStringLength,
double theSecondArgValue,
const XObjectPtr& arg3)
{
// Total the second and third arguments. If the third argument is
// missing, make it the length of the string + 1 (for XPath
// indexing style).
if (arg3.null() == true)
{
return double(theSourceStringLength + 1);
}
else
{
const double theRoundedValue =
DoubleSupport::round(DoubleSupport::add(theSecondArgValue, arg3->num()));
// If there's overflow, then we should return the length of the string + 1.
if (DoubleSupport::isPositiveInfinity(theRoundedValue) == true)
{
return double(theSourceStringLength + 1);
}
else
{
return theRoundedValue;
}
}
}
XObjectPtr CExternalFunction::execute( XPathExecutionContext& executionContext,
XalanNode* /* context */,
const XObjectPtr arg1,
const Locator* /* locator */) const
{
assert(arg1.null() == false);
const XalanDOMString& arg = arg1->str();
//convert XalanDOMString (implemented as unsigned short*) into StringBuffer
StringBuffer sbInput;
sbInput.ensureCapacity(arg.length()+1);
size32_t len = arg.length();
for (size32_t i=0; i < len; i++)
sbInput.append( (char) arg[i]);
StringBuffer sbOutput;
try
{
(*m_userFunction)(sbOutput, sbInput.str(), m_pTransform);
}
catch (IException* e)
{
StringBuffer msg;
e->errorMessage(msg);
e->Release();
}
catch (...)
{
}
XalanDOMString xdsOutput( sbOutput.str() );
return executionContext.getXObjectFactory().createString( xdsOutput );
}
XObjectPtr
FunctionStartsWith::execute(
XPathExecutionContext& executionContext,
XalanNode* /* context */,
const XObjectPtr arg1,
const XObjectPtr arg2,
const Locator* const /* locator */) const
{
assert(arg1.null() == false && arg2.null() == false);
const bool fStartsWith =
startsWith(
arg1->str(executionContext),
arg2->str(executionContext));
return executionContext.getXObjectFactory().createBoolean(fStartsWith);
}
XObjectPtr
FunctionLang::execute(
XPathExecutionContext& executionContext,
XalanNode* context,
const XObjectPtr arg1,
const LocatorType* /* locator */) const
{
assert(arg1.null() == false);
const XalanNode* parent = context;
bool fMatch = false;
const XalanDOMString& lang = arg1->str();
while(0 != parent)
{
if(XalanNode::ELEMENT_NODE == parent->getNodeType())
{
const XalanElement* const theElementNode =
#if defined(XALAN_OLD_STYLE_CASTS)
(const XalanElement*)parent;
#else
static_cast<const XalanElement*>(parent);
#endif
const XalanDOMString& langVal =
theElementNode->getAttributeNS(
DOMServices::s_XMLNamespaceURI,
s_attributeName);
if(0 != length(langVal))
{
XPathExecutionContext::GetAndReleaseCachedString theGuard1(executionContext);
XPathExecutionContext::GetAndReleaseCachedString theGuard2(executionContext);
if(startsWith(toLowerCaseASCII(langVal, theGuard1.get()), toLowerCaseASCII(lang, theGuard2.get())))
{
const XalanDOMString::size_type valLen = length(lang);
if(length(langVal) == valLen ||
charAt(langVal, valLen) == XalanUnicode::charHyphenMinus)
{
fMatch = true;
break;
}
}
}
}
parent = DOMServices::getParentOfNode(*parent);
}
return executionContext.getXObjectFactory().createBoolean(fMatch);
}
XObjectPtr
FunctionElementAvailable::execute(
XPathExecutionContext& executionContext,
XalanNode* /* context */,
const XObjectPtr arg1,
const LocatorType* locator) const
{
assert(arg1.null() == false);
return executionContext.getXObjectFactory().createBoolean(
executionContext.elementAvailable(arg1->str(), locator));
}
XObjectPtr
FunctionSample::execute(
XPathExecutionContext& executionContext,
XalanNode* /* context */,
const XObjectPtr arg1,
const XObjectPtr arg2,
const Locator* /* locator */) const
{
assert(arg1.null() == false);
assert(arg2.null() == false);
XalanDOMString path;
arg1->str(path);
const bool bLinux = arg2->boolean();
XalanDOMChar dchOld;
XalanDOMChar dchNew;
if (bLinux)
{
dchOld = '\\';
dchNew = '/';
}
else
{
dchOld = '/';
dchOld = '\\';
}
int len = path.length();
for (int i=0; i<len; i++)
if (path[i] == dchOld)
path[i] = dchNew;
return executionContext.getXObjectFactory().createString(path);
}
XObjectPtr
FunctionGenerateID::execute(
XPathExecutionContext& executionContext,
XalanNode* /* context */,
const XObjectPtr arg1,
const LocatorType* locator) const
{
assert(arg1.null() == false);
const NodeRefListBase& theNodeList = arg1->nodeset();
if (theNodeList.getLength() == 0)
{
return executionContext.getXObjectFactory().createStringReference(s_emptyString);
}
else
{
return execute(executionContext, theNodeList.item(0), locator);
}
}
XObjectPtr
FunctionString::execute(
XPathExecutionContext& executionContext,
XalanNode* /* context */,
const XObjectPtr arg1,
const LocatorType* /* locator */) const
{
assert(arg1.null() == false);
if (arg1->getType() == XObject::eTypeString)
{
// Since XObjects are reference counted, just return the
// argument.
return arg1;
}
else
{
return executionContext.getXObjectFactory().createStringAdapter(arg1);
}
}
void
ElemVariable::execute(StylesheetExecutionContext& executionContext) const
{
assert(m_qname != 0);
ParentType::execute(executionContext);
const XObjectPtr theValue(getValue(executionContext, executionContext.getCurrentNode()));
if (theValue.null() == false)
{
executionContext.pushVariable(
*m_qname,
theValue,
getParentNodeElem());
}
else
{
executionContext.pushVariable(
*m_qname,
this,
getParentNodeElem());
}
}
void
ElemForEach::selectAndSortChildren(
StylesheetExecutionContext& executionContext,
const ElemTemplateElement* theTemplate,
NodeSorter* sorter,
int selectStackFrameIndex) const
{
typedef StylesheetExecutionContext::SetAndRestoreCurrentStackFrameIndex SetAndRestoreCurrentStackFrameIndex;
assert(m_selectPattern != 0);
typedef XPathExecutionContext::BorrowReturnMutableNodeRefList BorrowReturnMutableNodeRefList;
BorrowReturnMutableNodeRefList theGuard(executionContext);
const NodeRefListBase* sourceNodes = 0;
XObjectPtr xobjectResult;
{
SetAndRestoreCurrentStackFrameIndex theSetAndRestore(
executionContext,
selectStackFrameIndex);
xobjectResult = m_selectPattern->execute(
*this,
executionContext,
*theGuard);
if (xobjectResult.null() == true)
{
sourceNodes = &*theGuard;
}
else
{
theGuard.release();
sourceNodes = &xobjectResult->nodeset();
}
}
if(0 != executionContext.getTraceListeners())
{
executionContext.fireSelectEvent(
SelectionEvent(
executionContext,
executionContext.getCurrentNode(),
*this,
StaticStringToDOMString(XALAN_STATIC_UCODE_STRING("select")),
*m_selectPattern,
*sourceNodes));
}
const NodeRefListBase::size_type nNodes = sourceNodes->getLength();
if (nNodes > 0)
{
// If there's not NodeSorter, or we've only selected one node,
// then just do the transform...
if (sorter == 0 || nNodes == 1)
{
transformSelectedChildren(
executionContext,
theTemplate,
*sourceNodes,
nNodes);
}
else
{
typedef StylesheetExecutionContext::SetAndRestoreCurrentStackFrameIndex SetAndRestoreCurrentStackFrameIndex;
typedef StylesheetExecutionContext::ContextNodeListPushAndPop ContextNodeListPushAndPop;
typedef StylesheetExecutionContext::BorrowReturnMutableNodeRefList BorrowReturnMutableNodeRefList;
BorrowReturnMutableNodeRefList sortedSourceNodes(executionContext);
*sortedSourceNodes = *sourceNodes;
{
SetAndRestoreCurrentStackFrameIndex theStackFrameSetAndRestore(
executionContext,
selectStackFrameIndex);
ContextNodeListPushAndPop theContextNodeListPushAndPop(
executionContext,
*sourceNodes);
sorter->sort(executionContext, *sortedSourceNodes);
}
transformSelectedChildren(
executionContext,
theTemplate,
*sortedSourceNodes,
nNodes);
}
}
}
XalanNode*
FindContextNode(
XPathProcessor& theXPathProcessor,
XPathEnvSupport& theXPathEnvSupport,
DOMSupport& theDOMSupport,
XPathFactory& theXPathFactory,
XalanDocument* theDocument,
const XalanDOMString& theContextNodeMatchPattern,
PrintWriter& thePrintWriter,
XPathExecutionContext& theExecutionContext)
{
XalanNode* theResult = 0;
MemoryManagerType& theMemoryManager =
theExecutionContext.getMemoryManager();
XPath* const theXPath = theXPathFactory.create();
XPathConstructionContextDefault theXPathConstructionContext;
XPathGuard theGuard(
theXPathFactory,
theXPath);
XalanElement* theNamespaceContext = 0;
ElementPrefixResolverProxy thePrefixResolver(theNamespaceContext, theXPathEnvSupport, theDOMSupport);
NodeRefList theContextNodeList(theMemoryManager);
const XObjectPtr theXObject =
ExecuteXPath(
theXPathProcessor,
theXPathConstructionContext,
*theXPath,
theContextNodeMatchPattern,
theDocument,
thePrefixResolver,
theContextNodeList,
theExecutionContext);
try
{
assert(theXObject.null() == false);
const NodeRefListBase& theResultList =
theXObject->nodeset();
if (theResultList.getLength() == 0)
{
thePrintWriter.print("FindContextNode: Unable to find context node using select \"");
thePrintWriter.print(theContextNodeMatchPattern);
thePrintWriter.println("\".");
thePrintWriter.println("FindContextNode: No nodes matched the pattern.");
}
else if (theResultList.getLength() != 1)
{
thePrintWriter.print("FindContextNode: Unable to find context node using select \"");
thePrintWriter.print(theContextNodeMatchPattern);
thePrintWriter.println("\".");
thePrintWriter.println("FindContextNode: More than one node matched the pattern.");
}
else
{
theResult = theResultList.item(0);
}
}
catch(...)
{
thePrintWriter.print("FindContextNode: Error executing match pattern \"");
thePrintWriter.print(theContextNodeMatchPattern);
thePrintWriter.println("\".");
}
return theResult;
}
const XObjectPtr
VariablesStack::findXObject(
const XalanQName& name,
StylesheetExecutionContext& executionContext,
bool fIsParam,
bool fSearchGlobalSpace,
bool& fNameFound)
{
typedef VariableStackStackType::size_type size_type;
// findEntry() returns an index into the stack. We should
// _never_ take the address of anything in the stack, since
// the address could change at unexpected times.
const size_type theEntryIndex =
findEntry(name, fIsParam, fSearchGlobalSpace);
if (theEntryIndex == m_stack.size())
{
fNameFound = false;
return XObjectPtr();
}
else
{
assert(theEntryIndex < m_stack.size());
fNameFound = true;
assert(m_stack[theEntryIndex].getType() == StackEntry::eVariable ||
m_stack[theEntryIndex].getType() == StackEntry::eParam ||
m_stack[theEntryIndex].getType() == StackEntry::eActiveParam);
const XObjectPtr& theValue = m_stack[theEntryIndex].getValue();
if (theValue.null() == false)
{
return theValue;
}
else
{
const ElemVariable* const var = m_stack[theEntryIndex].getVariable();
XObjectPtr theNewValue;
if (var != 0)
{
XalanNode* const doc = executionContext.getRootDocument();
assert(doc != 0);
XALAN_USING_STD(find)
// See if the ElemVariable instance is already being evaluated...
if (find(m_guardStack.begin(), m_guardStack.end(), var) != m_guardStack.end())
{
const StylesheetExecutionContext::GetCachedString theGuard(executionContext);
executionContext.error(
XalanMessageLoader::getMessage(
theGuard.get(),
XalanMessages::CircularVariableDefWasDetected),
doc,
var->getLocator());
}
m_guardStack.push_back(var);
#if !defined(XALAN_RECURSIVE_STYLESHEET_EXECUTION)
executionContext.pushContextMarker();
#else
// We need to set up a stack frame for the variable's execution...
typedef StylesheetExecutionContext::PushAndPopContextMarker PushAndPopContextMarker;
const PushAndPopContextMarker theContextMarkerPushPop(executionContext);
#endif
theNewValue = var->getValue(executionContext, doc);
assert(theNewValue.null() == false);
#if !defined(XALAN_RECURSIVE_STYLESHEET_EXECUTION)
executionContext.popContextMarker();
#endif
assert(m_guardStack.empty() == false);
m_guardStack.pop_back();
m_stack[theEntryIndex].setValue(theNewValue);
m_stack[theEntryIndex].activate();
}
return theNewValue;
}
}
bool
TestPredicateResult(
XPathProcessor& theXPathProcessor,
XPathEnvSupport& theXPathEnvSupport,
DOMSupport& theDOMSupport,
XMLParserLiaison& theLiaison,
XPathFactory& theXPathFactory,
const XalanDOMString& theXMLFileURL,
const XalanDOMString& theXSLFileURL,
PrintWriter& thePrintWriter,
XPathExecutionContext& theExecutionContext)
{
bool fError = false;
XalanDocument* const theXMLDocument =
ParseXML(theLiaison,
theXMLFileURL);
MemoryManagerType& theMemoryManager =
theExecutionContext.getMemoryManager();
if (theXMLDocument != 0)
{
XalanDOMString theContextNodeMatchPattern(theMemoryManager);
XalanDOMString theXPathString(theMemoryManager);
if (GetXSLInput(theLiaison,
theXSLFileURL,
theContextNodeMatchPattern,
theXPathString,
theMemoryManager) == true)
{
XalanNode* const theContextNode =
FindContextNode(theXPathProcessor,
theXPathEnvSupport,
theDOMSupport,
theXPathFactory,
theXMLDocument,
theContextNodeMatchPattern,
thePrintWriter,
theExecutionContext);
if (theContextNode != 0)
{
XalanElement* const theNamespaceContext = 0;
ElementPrefixResolverProxy thePrefixResolver(theNamespaceContext, theXPathEnvSupport, theDOMSupport);
NodeRefList theContextNodeList(theMemoryManager);
XPath* const theXPath1 = theXPathFactory.create();
XPathConstructionContextDefault theXPathConstructionContext(theMemoryManager);
XPathGuard theGuard1(theXPathFactory,
theXPath1);
XalanDOMString theResult(theMemoryManager);
theXPathProcessor.initXPath(*theXPath1,
theXPathConstructionContext,
TranscodeFromLocalCodePage("following-sibling::*", theResult),
thePrefixResolver);
XPath* const theXPath2 = theXPathFactory.create();
XPathGuard theGuard2(theXPathFactory,
theXPath2);
theXPathProcessor.initXPath(*theXPath2,
theXPathConstructionContext,
TranscodeFromLocalCodePage("descendant::*", theResult),
thePrefixResolver);
bool fDump = false;
if (fDump == true)
{
thePrintWriter.println();
thePrintWriter.println();
theXPath1->getExpression().dumpOpCodeMap(thePrintWriter);
thePrintWriter.println();
theXPath1->getExpression().dumpTokenQueue(thePrintWriter);
thePrintWriter.println();
thePrintWriter.println();
theXPath2->getExpression().dumpOpCodeMap(thePrintWriter);
thePrintWriter.println();
theXPath2->getExpression().dumpTokenQueue(thePrintWriter);
thePrintWriter.println();
thePrintWriter.println();
}
XalanNode* theContextNode = theXMLDocument->getFirstChild()->getFirstChild();
for( ; theContextNode != 0; theContextNode = theContextNode->getNextSibling())
{
if (theContextNode->getNodeType() != XalanNode::ELEMENT_NODE)
{
continue;
}
const XObjectPtr theResult1 =
theXPath1->execute(theExecutionContext);
try
{
assert(theResult1.null() == false);
const NodeRefListBase& theResultList =
theResult1->nodeset();
const unsigned int theLength = theResultList.getLength();
thePrintWriter.print("theResult1->str() == \"");
thePrintWriter.print(theResult1->str());
thePrintWriter.print("\"");
thePrintWriter.println();
if (theLength > 0)
{
for (unsigned int i = 0; i < theLength; i++)
{
thePrintWriter.print(theResultList.item(i)->getNodeName());
thePrintWriter.println();
}
}
}
catch(...)
{
thePrintWriter.print("Execution of XPath ");
thePrintWriter.print(theXPathString);
thePrintWriter.println(" failed!");
}
const XObjectPtr theResult2 =
theXPath2->execute(theExecutionContext);
try
{
assert(theResult2.null() == false);
const NodeRefListBase& theResultList =
theResult2->nodeset();
const int theLength = theResultList.getLength();
thePrintWriter.print("theResult2->str() == \"");
thePrintWriter.print(theResult2->str());
thePrintWriter.print("\"");
thePrintWriter.println();
if (theLength > 0)
{
for (int i = 0; i < theLength; i++)
{
thePrintWriter.print(theResultList.item(i)->getNodeName());
thePrintWriter.println();
}
}
}
catch(...)
{
thePrintWriter.print("Execution of XPath ");
thePrintWriter.print(theXPathString);
thePrintWriter.println(" failed!");
}
if (theResult1->equals(*theResult2, theExecutionContext) == true)
{
thePrintWriter.print("theResult1 is equal to theResult2");
thePrintWriter.println();
thePrintWriter.print("theContextNode->getNodeName() == \"");
thePrintWriter.print(theContextNode->getNodeName());
thePrintWriter.print("\" theContextNode->getNodeValue() == \"");
thePrintWriter.print(theContextNode->getNodeValue());
thePrintWriter.println("\"");
}
}
}
}
}
return fError;
}
bool
TestAxisResult(
XPathProcessor& theXPathProcessor,
XPathEnvSupport& theXPathEnvSupport,
DOMSupport& theDOMSupport,
XMLParserLiaison& theLiaison,
XPathFactory& theXPathFactory,
const XalanDOMString& theXMLFileURL,
const XalanDOMString& theXSLFileURL,
PrintWriter& thePrintWriter,
XPathExecutionContext& theExecutionContext)
{
bool fError = false;
XalanDocument* const theXMLDocument = ParseXML(theLiaison,
theXMLFileURL);
MemoryManagerType& theMemoryManager =
theExecutionContext.getMemoryManager();
if (theXMLDocument != 0)
{
XalanDOMString theContextNodeMatchPattern(theMemoryManager);
XalanDOMString theXPathString(theMemoryManager);
if (GetXSLInput(theLiaison,
theXSLFileURL,
theContextNodeMatchPattern,
theXPathString,
theMemoryManager) == true)
{
XalanNode* const theContextNode =
FindContextNode(theXPathProcessor,
theXPathEnvSupport,
theDOMSupport,
theXPathFactory,
theXMLDocument,
theContextNodeMatchPattern,
thePrintWriter,
theExecutionContext);
if (theContextNode != 0)
{
XalanElement* const theNamespaceContext = 0;
ElementPrefixResolverProxy thePrefixResolver(theNamespaceContext, theXPathEnvSupport, theDOMSupport);
NodeRefList theContextNodeList(theMemoryManager);
XPath* const theXPath = theXPathFactory.create();
XPathConstructionContextDefault theXPathConstructionContext(theMemoryManager);
XPathGuard theGuard(theXPathFactory,
theXPath);
theXPathProcessor.initXPath(*theXPath,
theXPathConstructionContext,
theXPathString,
thePrefixResolver);
bool fDump = false;
if (fDump == true)
{
thePrintWriter.println();
thePrintWriter.println();
theXPath->getExpression().dumpOpCodeMap(thePrintWriter);
thePrintWriter.println();
theXPath->getExpression().dumpTokenQueue(thePrintWriter);
thePrintWriter.println();
thePrintWriter.println();
}
const XObjectPtr theResult =
theXPath->execute(theContextNode, thePrefixResolver, theContextNodeList, theExecutionContext);
try
{
assert(theResult.null() == false);
const NodeRefListBase& theResultList =
theResult->nodeset();
const unsigned int theLength = theResultList.getLength();
if (theLength == 0)
{
thePrintWriter.println("<out/>");
}
else
{
thePrintWriter.print("<out>");
for (unsigned int i = 0; i < theLength; i++)
{
thePrintWriter.print(theResultList.item(i)->getNodeName());
thePrintWriter.print(" ");
}
thePrintWriter.println("</out>");
}
}
catch(...)
{
thePrintWriter.print("Execution of XPath ");
thePrintWriter.print(theXPathString);
thePrintWriter.println(" failed!");
}
}
}
}
theLiaison.reset();
return fError;
}
XObjectPtr
FunctionSubstring::execute(
XPathExecutionContext& executionContext,
XalanNode* /* context */,
const XObjectPtr arg1,
const XObjectPtr arg2,
const XObjectPtr arg3,
const LocatorType* /* locator */) const
{
assert(arg1.null() == false && arg2.null() == false);
const XalanDOMString& theSourceString = arg1->str();
const XalanDOMString::size_type theSourceStringLength = length(theSourceString);
if (theSourceStringLength == 0)
{
return createEmptyString(executionContext);
}
else
{
// Get the value of the second argument...
const double theSecondArgValue =
DoubleSupport::round(arg2->num());
// XPath indexes from 1, so this is the first XPath index....
const XalanDOMString::size_type theStartIndex = getStartIndex(theSecondArgValue, theSourceStringLength);
if (theStartIndex >= theSourceStringLength)
{
return createEmptyString(executionContext);
}
else
{
const double theTotal =
getTotal(theSourceStringLength, theSecondArgValue, arg3);
if (DoubleSupport::isNaN(theSecondArgValue) == true ||
DoubleSupport::isNaN(theTotal) == true ||
DoubleSupport::isNegativeInfinity(theTotal) == true ||
theTotal == 0.0 ||
theTotal < double(theStartIndex))
{
return createEmptyString(executionContext);
}
else
{
const XalanDOMString::size_type theSubstringLength =
getSubstringLength(
theSourceStringLength,
theStartIndex,
theTotal);
XPathExecutionContext::GetAndReleaseCachedString theResult(executionContext);
XalanDOMString& theString = theResult.get();
assign(
theString,
toCharArray(theSourceString) + theStartIndex,
theSubstringLength);
return executionContext.getXObjectFactory().createString(theResult);
}
}
}
}
XObjectPtr
FunctionSubstringAfter::execute(
XPathExecutionContext& executionContext,
XalanNode* /* context */,
const XObjectPtr arg1,
const XObjectPtr arg2,
const LocatorType* /* locator */) const
{
assert(arg1.null() == false && arg2.null() == false);
const XalanDOMString& theFirstString = arg1->str();
const XalanDOMString::size_type theFirstStringLength = length(theFirstString);
if (theFirstStringLength == 0)
{
return createEmptyString(executionContext);
}
else
{
const XalanDOMString& theSecondString = arg2->str();
const XalanDOMString::size_type theSecondStringLength = length(theSecondString);
if (theSecondStringLength == 0)
{
return arg1;
}
else
{
const XalanDOMString::size_type theIndex = indexOf(theFirstString,
theSecondString);
if (theIndex == theFirstStringLength)
{
return createEmptyString(executionContext);
}
else
{
const XalanDOMString::size_type theSecondStringLength = length(theSecondString);
// Find the first character, which will be the offset of the index of the
// beginning of the second string, plus the length of the second string.
const XalanDOMChar* const theFirstCharacter =
toCharArray(theFirstString) + theIndex + theSecondStringLength;
// The remaining length is just the opposite -- the length of the string,
// minus the index, minus the length of the second string.
const XalanDOMString::size_type theSubstringLength =
theFirstStringLength - theIndex - theSecondStringLength;
XPathExecutionContext::GetAndReleaseCachedString theResult(executionContext);
XalanDOMString& theString = theResult.get();
assign(
theString,
theFirstCharacter,
theSubstringLength);
return executionContext.getXObjectFactory().createString(theResult);
}
}
}
}