public static Value Parse(OsmiumEngine engine, string input)
{
var lines = input.Split('\n');
var lex = new WolframLanguageLexer(new AntlrInputStream(input));
var parse = new WolframLanguageParser(new CommonTokenStream(lex, Lexer.DefaultTokenChannel));
lex.Parser = parse;
var listen = new ExprBuildListener(engine, parse);
var errors = new List <string>();
parse.AddErrorListener(new ErrorListener <IToken>((recognizer, token, line, pos, msg, e) => { errors.Add($"Unexpected {token} at {line}:{pos}: {msg}"); }));
var expr = parse.expr();
ParseTreeWalker.Default.Walk(listen, expr);
if (errors.Any())
{
foreach (var i in errors)
{
Console.WriteLine("err: {0}", i);
}
return(null);
}
return(listen.GetValue());
}
public ExprBuildListener(OsmiumEngine engine, WolframLanguageParser parse)
{
_engine = engine;
_parse = parse;
}