public override bool IsSatisfied(IEnumerable<XmlNodeInformation> lookahead, XmlFilterBase filter)
{
string currentPath = String.Empty;
int? startDepth = null;
if (filter is InkAnnotationXmlFilter)
{
m_target = (filter as InkAnnotationXmlFilter).Target;
}
else
{
m_target = null;
}
foreach (XmlNodeInformation xni in lookahead)
{
if (!startDepth.HasValue)
{
startDepth = xni.Depth;
}
else if (xni.Depth < startDepth.Value)
{
break;
}
switch (xni.NodeType)
{
case NodeType.start:
currentPath += "/" + xni.LocalName;
break;
case NodeType.end:
int index = currentPath.LastIndexOf("/");
if (index != -1)
{
currentPath = currentPath.Substring(0, index);
}
break;
}
if (currentPath == "/ink" && xni.Prefix == "o")
{
return (xni.GetAttributeValue("annotation") == "t");
}
if (xni.Prefix == "inkml")
{
return true;
}
if (xni.EmptyElement)
{
int index = currentPath.LastIndexOf("/");
if (index != -1)
{
currentPath = currentPath.Substring(0, index);
}
}
}
return false;
}
public List<TriggeringNodeDefinition> WhatDoesThisNodeTrigger(XmlNodeInformation NodeInfo, IEnumerable<XmlNodeInformation> lookaheadEnum, XmlFilterBase filter)
{
List<TriggeringNodeDefinition> subSet = LookupSubset(NodeInfo.NodeName);
if (subSet == null)
return null;
return ExtractFiredTriggersFromTriggerList(NodeInfo, lookaheadEnum, subSet, filter);
}
public override bool IsSatisfied(IEnumerable<XmlNodeInformation> lookahead, XmlFilterBase filter)
{
Reset();
foreach (XmlNodeInformation xni in lookahead)
{
ProcessNode(xni);
if (finished)
return result && IsNotExcluded(filter.ExcludeList);
}
return result && IsNotExcluded(filter.ExcludeList);
}
public List<TriggeringNodeDefinition> ExtractFiredTriggersFromTriggerList(XmlNodeInformation NodeInfo, IEnumerable<XmlNodeInformation> lookaheadEnum, List<TriggeringNodeDefinition> subSet, XmlFilterBase filter)
{
List<TriggeringNodeDefinition> results = new List<TriggeringNodeDefinition>();
foreach (TriggeringNodeDefinition tnd in subSet)
{
if (tnd.nodeName == null && tnd.attributeFilter == null)
continue; // safety net
if (!NodeInfo.Is(tnd.namespaceId, tnd.nodeName))
continue;
if (!tnd.attributeFilter.Matches(NodeInfo))
continue;
Stack<bool> states;
if (tnd.lookaheadFilter != null && lookaheadEnum != null)
{
bool lookaheadSatisfied = tnd.lookaheadFilter.IsSatisfied(lookaheadEnum, filter);
if (!string.IsNullOrEmpty(tnd.LookAheadTrackingKey))
{
if (!m_lookaheadStates.TryGetValue(tnd.LookAheadTrackingKey, out states))
{
states = new Stack<bool>();
m_lookaheadStates.Add(tnd.LookAheadTrackingKey, states);
}
states.Push(lookaheadSatisfied);
}
if (!lookaheadSatisfied)
continue;
}
else if (!string.IsNullOrEmpty(tnd.LookAheadTrackingKey))
{
// depends on a lookahead value
if (!m_lookaheadStates.TryGetValue(tnd.LookAheadTrackingKey, out states))
continue;
if (states.Count == 0)
continue;
bool value = (tnd.PopsLookAheadValue ? states.Pop() : states.Peek());
if (!value)
continue;
}
results.Add(tnd);
}
return results;
}
public override bool IsSatisfied(IEnumerable<XmlNodeInformation> lookahead, XmlFilterBase filter)
{
string currentPath = String.Empty;
int? startDepth = null;
foreach (XmlNodeInformation xni in lookahead)
{
if (!startDepth.HasValue)
{
startDepth = xni.Depth;
}
else if (xni.Depth <= startDepth.Value)
{
break;
}
switch (xni.NodeType)
{
case NodeType.start:
currentPath += "/" + xni.LocalName;
break;
case NodeType.end:
int index = currentPath.LastIndexOf("/");
if ( index != -1 )
{
currentPath = currentPath.Substring(0, index);
}
break;
}
if (currentPath == m_notQuiteXPath)
return true;
if (xni.EmptyElement)
{
int index = currentPath.LastIndexOf("/");
if (index != -1)
{
currentPath = currentPath.Substring(0, index);
}
}
}
return false;
}
public abstract bool IsSatisfied(IEnumerable<XmlNodeInformation> lookahead, XmlFilterBase filter);
public List<TriggeringNodeDefinition> WhatDoesThisNodeTrigger(XmlNodeInformation NodeInfo, XmlFilterBase filter)
{
return WhatDoesThisNodeTrigger(NodeInfo, null, filter);
}
