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);
}
}
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));
}
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);
}
}
}
