public AstReader GetReader()
{
var reader = new AstReader();
reader.AddGroup(new GroupSymbol("(", ")"));
reader.AddGroup(new GroupSymbol("[", "]"));
reader.AddGroup(new GroupSymbol("{", "}"));
reader.AddGroup(new GroupSymbol("<", ">"));
reader.StrictGroups = true;
return(reader);
}
private IData ReadInput()
{
var reader = new AstReader();
reader.Escape = "!";
reader.EscapeBehavior = AstReader.EscapeHandling.Skip;
reader.SequenceSplit = ",";
var group = new GroupSymbol("{", "}");
var garbage = new GroupSymbol("<", ">", false);
reader.AddGroup(group).AddGroup(garbage);
var parser = new AstParser <IData>();
parser.Add(new TupleParser <IData>(group, (IList <IData> args, out IData result) =>
{
result = new Group {
Data = args.ToList()
};
return(true);
}));
parser.Add(new TupleParser <IData>(garbage, (IList <IData> args, out IData result) =>
{
result = new Garbage {
Content = args.Count > 0 ? args[0] as GarbageData : null
};
return(true);
}));
parser.Add(new SequenceParser <IData>((AstParser <IData> _, IList <AstNode> nodes, out IData result) =>
{
result = new GarbageData(nodes.Str());
return(true);
}));
var nodes = reader.Read(InputLine, new TokenSettings {
SingleLetters = true
});
return(parser.Parse(nodes));
}