public virtual SymArgument MakeArgument(SymNode aLevelToMakeArgumentsFrom)
{
SymArgument argument = new SymArgument();
// Convert (recursively) any emitted elements to real tokens
if (aLevelToMakeArgumentsFrom is SymTokenBalancerMarkerLevelNode)
{
SymTokenBalancerMarkerLevelNode levelNode = (SymTokenBalancerMarkerLevelNode)aLevelToMakeArgumentsFrom;
levelNode.ConvertEmittedElementsToRealTokenNodes(true /*recurse*/);
}
// Now actually obtain the argument tokens
int count = aLevelToMakeArgumentsFrom.ChildCount;
int i = 0;
//
while (i < count)
{
SymNode n = aLevelToMakeArgumentsFrom[0];
// We always remove any other nodes, irrespective of their type.
// This is to ensure that the document tree does not get cluttered
// with redundant argument token info.
n.Remove();
// Now we decide what to do...
if (n is SymTokenBalancerMarkerArgumentNode)
{
// We've reached the argument itself. This is the
// signal to stop processing. We remove the argument node
// since its not relevant to the production of the tree.
break;
}
else if (n is SymTokenBalancerMarkerLevelNode)
{
// Create a new sub-argument node and copy over the
// children.
SymTokenBalancerMarkerLevelNode levelNode = (SymTokenBalancerMarkerLevelNode)n;
SymArgumentSubLevel subLevel = levelNode.AsArgumentSubLevel(true);
argument.CurrentNode.Add(subLevel);
}
else if (n is SymTokenBalancerNodeEmittedElement)
{
System.Diagnostics.Debug.Assert(false); // shouldn't get here anymore!
}
else if (n is SymNodeToken)
{
// Node is implicitly removed since it transfers
// from one tree to another.
argument.CurrentNode.Add(n);
}
count = aLevelToMakeArgumentsFrom.ChildCount;
}
//
SymTokenUtils.RemoveWhiteSpace(argument, true);
return(argument);
}
public SymArgumentSubLevel AsArgumentSubLevel(bool aRecurse)
{
SymArgumentSubLevel ret = new SymArgumentSubLevel(this);
//
if (aRecurse)
{
foreach (SymNode child in ret)
{
if (child is SymTokenBalancerMarkerLevelNode)
{
SymTokenBalancerMarkerLevelNode markerNode = (SymTokenBalancerMarkerLevelNode)child;
SymArgumentSubLevel subLevel = markerNode.AsArgumentSubLevel(aRecurse);
ret.InsertChild(subLevel, markerNode);
markerNode.Remove();
}
}
}
//
return(ret);
}
