Ejemplo n.º 1
0
        private static void RunFile(string path, List <string> includeDirs)
        {
            var   text = File.ReadAllText(path);
            var   env  = new Squirrel.Environment();
            INode result;

            try
            {
                result = Interpret(text, ref env, includeDirs);
            }
            catch (TokenizerException e)
            {
                Console.WriteLine(e.Message);
                return;
            }
            catch (ParserException e)
            {
                Console.WriteLine(e.Message);
                return;
            }

            if (!result.Equals(Evaluator.Null))
            {
                Console.WriteLine(result);
            }
        }
Ejemplo n.º 2
0
        private static INode Interpret(string text, ref Squirrel.Environment env, List <string> includeDirs)
        {
            var tokenizer = new Tokenizer(text);
            var parser    = new Parser(tokenizer.Tokenize());
            var evaluator = new Evaluator(parser.Parse(), includeDirs);

            return(evaluator.Evaluate(ref env));
        }
Ejemplo n.º 3
0
        private static void RunInteractiveConsole(List <string> includeDirs)
        {
            var env = new Squirrel.Environment();

            const string prompt = ">>> ";

            Console.WriteLine("Press ^D to quit. Use an underscore ('_') to refer to the last output.");
            while (true)
            {
                Console.Write(prompt);

                var line = Console.ReadLine();
                if (line == null)
                {
                    break;
                }
                if (string.IsNullOrWhiteSpace(line))
                {
                    continue;
                }

                INode result;
                try
                {
                    result = Interpret(line, ref env, includeDirs);
                }
                catch (TokenizerException e)
                {
                    Console.WriteLine(e.Message);
                    continue;
                }
                catch (ParserException e)
                {
                    Console.WriteLine(e.Message);
                    continue;
                }

                if (!result.Equals(Evaluator.Null))
                {
                    Console.WriteLine(result);
                }

                if (result.GetType() != typeof(ErrorNode))
                {
                    env.Put("_", result);
                }
            }
        }