public IType[] InterpretLines(Global environment, string input)
{
if (input == null)
{
return new IType[] { }
}
;
try
{
AntlrInputStream inputStream = new AntlrInputStream(input);
FAILangLexer lexer = new FAILangLexer(inputStream);
CommonTokenStream commonTokenStream = new CommonTokenStream(lexer);
FAILangParser parser = new FAILangParser(commonTokenStream);
parser.ErrorHandler = new BailErrorStrategy();
FAILangParser.CompileUnitContext expressionContext = parser.compileUnit();
FAILangVisitor visitor = new FAILangVisitor(environment);
return(visitor.VisitCompileUnit(expressionContext).Select(x => environment.Evaluate(x)).ToArray());
}
catch (Antlr4.Runtime.Misc.ParseCanceledException)
{
return(new IType[] { new Error("ParseError", "The input failed to parse.") });
}
catch (Exception e)
{
Console.WriteLine(e.Message);
Console.WriteLine(e.StackTrace);
}
return(new IType[] { });
}
}
static void Main(string[] args)
{
Global.LoadBuiltins(new NumberBuiltinProvider());
Console.InputEncoding = Encoding.Unicode;
Console.OutputEncoding = Encoding.Unicode;
// Read-eval-print loop
while (true)
{
try
{
string input = Console.ReadLine();
while (input.EndsWith(" "))
{
input += Console.ReadLine();
}
AntlrInputStream inputStream = new AntlrInputStream(input);
FAILangLexer lexer = new FAILangLexer(inputStream);
CommonTokenStream commonTokenStream = new CommonTokenStream(lexer);
FAILangParser parser = new FAILangParser(commonTokenStream);
parser.ErrorHandler = new BailErrorStrategy();
FAILangParser.CallsContext expressionContext = parser.calls();
FAILangVisitor visitor = new FAILangVisitor();
var vals = visitor.VisitCalls(expressionContext).Select(x => Global.Evaluate(x));
foreach (var val in vals)
{
if (val != null)
{
Console.WriteLine(val);
}
}
}
catch (StackOverflowException)
{
Console.WriteLine(new Error("StackOverflow", "The call stack has overflowed"));
}
catch (Antlr4.Runtime.Misc.ParseCanceledException)
{
Console.WriteLine(new Error("ParseError", "The input failed to parse."));
}
catch (Exception e)
{
Console.WriteLine(e.Message);
Console.WriteLine(e.StackTrace);
}
}
}