public ProgramNode Parse(XElement xe)
{
switch (xe.Name.ToString())
{
case "TerminalNode":
throw(new FormatException("TerminalNode is abstract node!"));
case "NonterminalNode":
{
var ruleName = xe.Attribute("rule").Value;
var grammarRule = (NonterminalRule)grammar.Rule(ruleName);
var children = new ProgramNode[xe.Elements().Count()];
int index = 0;
foreach (var childXe in xe.Elements())
{
children[index] = Parse(childXe);
index++;
}
var node = new NonterminalNode(grammarRule, children);
return(node);
}
case "Hole":
throw(new NotImplementedException("Hole is not supported yet!"));
case "LiteralNode":
{
var symbolName = xe.Attribute("symbol").Value;
var node = new LiteralNode(grammar.Symbol(symbolName), makeObject(xe));
return(node);
}
case "VariableNode":
{
var symbolName = xe.Attribute("symbol").Value;
var node = new VariableNode(grammar.Symbol(symbolName));
return(node);
}
case "LambdaNode":
throw(new NotImplementedException("LambdaNode is not supported yet!"));
case "LetNode":
throw(new NotImplementedException("LetNode is not supported yet!"));
default:
throw(new FormatException("Unknown XML node label!"));
}
}
public ActionResult RunProgram(string encoded, HttpPostedFileBase run_file)
{
var pNode = new NonterminalNode(SNTSBackend.Learner.Instance.Grammar.Rules[0] as NonterminalRule);
if (UploadFile(run_file))
{
ViewBag.Message = "Files Uploaded Successfully!!";
ViewBag.InputFile = "out-" + Path.GetFileName(run_file.FileName);
var inputTable = OpenFile(Path.GetFileName(run_file.FileName));
var outputTable = SNTSBackend.Learner.Instance.Invoke(pNode, inputTable);
SNTSBackend.Parser.DatatableToCSVWriter.Write(outputTable, Path.Combine(Server.MapPath("~/Uploads/"), $"out-{run_file.FileName}"));
}
else
{
ViewBag.Message = "Files Not Uploaded!!";
}
return(View());
}
public double Multiply(VariableNode v, NonterminalNode start, NonterminalNode end)
{
int multiple = 1;
foreach (ProgramNode p in start.Children)
{
if (p.Symbol.IsTerminal)
{
multiple *= 10;
break;
}
}
foreach (ProgramNode p in end.Children)
{
if (p.Symbol.IsTerminal)
{
multiple *= 10;
break;
}
}
return((double)start.GetFeatureValue(this) * (double)end.GetFeatureValue(this) * multiple);
}