protected bool ProcessStatement(XmlElement element, IXmlProcessorEngine engine)
{
if (!element.HasAttribute(DefinedAttrName) &&
!element.HasAttribute(NotDefinedAttrName))
{
throw new XmlProcessorException("'if' elements expects a non empty defined or not-defined attribute");
}
if (element.HasAttribute(DefinedAttrName) &&
element.HasAttribute(NotDefinedAttrName))
{
throw new XmlProcessorException("'if' elements expects a non empty defined or not-defined attribute");
}
bool processContents = false;
if (element.HasAttribute(DefinedAttrName))
{
processContents = engine.HasFlag(element.GetAttribute(DefinedAttrName));
}
else
{
processContents = !engine.HasFlag(element.GetAttribute(NotDefinedAttrName));
}
return processContents;
}
protected bool ProcessStatement(XmlElement element, IXmlProcessorEngine engine)
{
if (!element.HasAttribute(DefinedAttrName) &&
!element.HasAttribute(NotDefinedAttrName))
{
throw new XmlProcessorException("'if' elements expects a non empty defined or not-defined attribute");
}
if (element.HasAttribute(DefinedAttrName) &&
element.HasAttribute(NotDefinedAttrName))
{
throw new XmlProcessorException("'if' elements expects a non empty defined or not-defined attribute");
}
bool processContents = false;
if (element.HasAttribute(DefinedAttrName))
{
processContents = engine.HasFlag(element.GetAttribute(DefinedAttrName));
}
else
{
processContents = !engine.HasFlag(element.GetAttribute(NotDefinedAttrName));
}
return(processContents);
}
private void ProcessElseElement(XmlProcessingInstruction pi, IXmlProcessorEngine engine, ref StatementState state)
{
AssertData(pi, pi.Name == ElsifPiName);
if (state == StatementState.Collect)
{
state = StatementState.Finished;
}
else if (pi.Name == ElsePiName || engine.HasFlag(pi.Data))
{
if (state == StatementState.Init)
{
state = StatementState.Collect;
}
}
RemoveItSelf(pi);
return;
}
public override void Process(IXmlProcessorNodeList nodeList, IXmlProcessorEngine engine)
{
XmlProcessingInstruction node = nodeList.Current as XmlProcessingInstruction;
AssertData(node, true);
StatementState state = engine.HasFlag(node.Data) ? StatementState.Collect : StatementState.Init;
List <XmlNode> nodesToProcess = new List <XmlNode>();
int nestedLevels = 0;
RemoveItSelf(nodeList.Current);
while (nodeList.MoveNext())
{
if (nodeList.Current.NodeType == XmlNodeType.ProcessingInstruction)
{
XmlProcessingInstruction pi = nodeList.Current as XmlProcessingInstruction;
if (pi.Name == EndPiName)
{
nestedLevels--;
if (nestedLevels < 0)
{
RemoveItSelf(nodeList.Current);
break;
}
}
else if (pi.Name == IfPiName)
{
nestedLevels++;
}
else if (nestedLevels == 0)
{
if (pi.Name == ElsePiName || pi.Name == ElsifPiName)
{
ProcessElseElement(pi, engine, ref state);
continue;
}
}
}
if (state == StatementState.Collect)
{
nodesToProcess.Add(nodeList.Current);
}
else
{
RemoveItSelf(nodeList.Current);
}
}
if (nestedLevels != -1)
{
throw new XmlProcessorException("Unbalanced pi if element");
}
if (nodesToProcess.Count > 0)
{
engine.DispatchProcessAll(new DefaultXmlProcessorNodeList(nodesToProcess));
}
}
public override void Process(IXmlProcessorNodeList nodeList, IXmlProcessorEngine engine)
{
XmlProcessingInstruction node = nodeList.Current as XmlProcessingInstruction;
AssertData(node, true);
StatementState state = engine.HasFlag(node.Data) ? StatementState.Collect : StatementState.Init;
List<XmlNode> nodesToProcess = new List<XmlNode>();
int nestedLevels = 0;
RemoveItSelf(nodeList.Current);
while(nodeList.MoveNext())
{
if (nodeList.Current.NodeType == XmlNodeType.ProcessingInstruction)
{
XmlProcessingInstruction pi = nodeList.Current as XmlProcessingInstruction;
if (pi.Name == EndPiName)
{
nestedLevels--;
if (nestedLevels < 0)
{
RemoveItSelf(nodeList.Current);
break;
}
}
else if (pi.Name == IfPiName)
{
nestedLevels++;
}
else if (nestedLevels == 0)
{
if (pi.Name == ElsePiName || pi.Name == ElsifPiName)
{
ProcessElseElement(pi, engine, ref state);
continue;
}
}
}
if (state == StatementState.Collect)
{
nodesToProcess.Add(nodeList.Current);
}
else
{
RemoveItSelf(nodeList.Current);
}
}
if (nestedLevels != -1)
{
throw new XmlProcessorException("Unbalanced pi if element");
}
if (nodesToProcess.Count > 0)
{
engine.DispatchProcessAll(new DefaultXmlProcessorNodeList(nodesToProcess));
}
}
private void ProcessElseElement(XmlProcessingInstruction pi, IXmlProcessorEngine engine, ref StatementState state)
{
AssertData(pi, pi.Name == ElsifPiName);
if (state == StatementState.Collect)
{
state = StatementState.Finished;
}
else if (pi.Name == ElsePiName || engine.HasFlag(pi.Data))
{
if (state == StatementState.Init)
{
state = StatementState.Collect;
}
}
RemoveItSelf(pi);
return;
}
