public override IDerivation Visit(PlaceHolderPhrase aPlaceHolderPhrase, DerivationContext aContext)
{
CyclesDetectContext context = aContext as CyclesDetectContext;
aPlaceHolderPhrase.Parent = context.Parent;
CyclesDetectContext newContext = new CyclesDetectContext(aContext as CyclesDetectContext);
newContext.Parent = aPlaceHolderPhrase;
return(base.Visit(aPlaceHolderPhrase, newContext));
}
public virtual IDerivation Visit(PlaceHolderPhrase aPlaceHolderPhrase, DerivationContext aContext)
{
ListDerivation lList = new ListDerivation(true, aContext);
TextDerivation lText = new TextDerivation(aPlaceHolderPhrase.Name); //Symbol.Create(mGrammar, Name, true);
lList.Add(lText);
//add this point to special list for futher replacement
PlaceHolders.Add(aPlaceHolderPhrase.Name, lText);
return(lList);
}
public virtual IDerivation Visit(PlaceHolderPhrase aPlaceHolderPhrase, DerivationContext aContext)
{
return(null);
}
