public void CreateRGGTransition(string from, string to, TransitionType transitionType, params object[] args)
{
RGGNode fromNode = GetNode(from);
if (transitionType == TransitionType.PatternStart)
{
if (!_patternStartRGGNodes.ContainsKey(from))
{
_patternStartRGGNodes.Add(from, fromNode);
}
}
RGGTransition transition = new RGGTransition(fromNode, GetNode(to), transitionType, args);
}
public RGGNode GetNode(string nodeName)
{
RGGNode returnNode;
if (_rGGNodes.TryGetValue(nodeName, out returnNode))
{
return(returnNode);
}
else
{
returnNode = new RGGNode(nodeName);
_rGGNodes.Add(returnNode.Name, returnNode);
return(returnNode);
}
}
public RGGTransition(RGGNode from, RGGNode to, TransitionType transitionType, params object[] args)
{
From = from;
From.AddTransition(this);
To = to;
TransitionType = transitionType;
switch (transitionType)
{
case TransitionType.PatternStart:
case TransitionType.PatternEnd:
break;
case TransitionType.NonTerminalNonRecursive:
case TransitionType.NonTerminalRecursive:
if (args.Count() > 0 && args[0] is string)
{
NonTerminal = args[0] as string;
}
else
{
throw new Exception("NonTerminalNonRecursive/NonTerminalRecursive expect args of one string");
}
break;
case TransitionType.Terminal:
if (args.Count() > 0 && args[0] is TerminalPattern)
{
Terminal = args[0] as TerminalPattern;
}
else
{
throw new Exception("Terminal expect args of one TerminalPattern");
}
break;
case TransitionType.GroupStart:
if (args.Count() == 1 && args[0] is string)
{
Internal = args[0] as string;
}
else
{
throw new Exception("GroupStart expect args of one string");
}
break;
case TransitionType.GroupEnd:
if (args.Count() == 1 && args[0] is string)
{
Internal = args[0] as string;
}
else
{
throw new Exception("GroupEnd expect args of one string and one start Node name");
}
break;
case TransitionType.Pop:
if (args.Count() > 0)
{
for (int counter = 0; counter < args.Count(); counter += 1)
{
if (args[counter] is string)
{
PopList.Add(args[counter] as string);
}
else
{
throw new Exception(string.Format("{0} value of args expected to be string: was {1}", counter, args[counter].GetType().Name));
}
}
}
break;
case TransitionType.Push:
if (args.Count() > 0)
{
if (args[0] is TerminalPattern)
{
Terminal = args[0] as TerminalPattern;
}
else
{
throw new Exception(string.Format("First value of args expected to be char: was {0}", args[0]));
}
for (int counter = 1; counter < args.Count(); counter += 1)
{
if (args[counter] is string)
{
PushList.Add(args[counter] as string);
}
else
{
throw new Exception(string.Format("{0} value of args expected to be string: was {1}", counter, args[counter].GetType().Name));
}
}
}
else
{
throw new Exception(string.Format("Push transition from node {0} to {1} missing arguments", From.Name, To.Name));
}
break;
}
}
