public Evaluator(Interpreter interpreter)
{
this.interpreter = interpreter;
this.GlobalEnv = interpreter.GlobalEnv;
Stack = new Stack<StackFrame>();
var ConsoleInput = new ScheminPort(Console.In);
var ConsoleOutput = new ScheminPort(Console.Out);
this.CurrentInputPort = ConsoleInput;
this.CurrentOutputPort = ConsoleOutput;
}
static void InterpretFile(string filename)
{
Interpreter i = new Interpreter();
string contents = File.ReadAllText(filename);
Console.WriteLine(i.Interpret(contents));
}
static void ReplPrompt()
{
Interpreter i = new Interpreter();
for (; ;)
{
bool completeInput = false;
int openParens = 0;
int closeParens = 0;
List<Token> partialInput = new List<Token>();
while (completeInput != true)
{
if (openParens != closeParens)
{
Console.Write("schemin* ");
}
else
{
Console.Write("schemin> ");
}
string line = Console.ReadLine();
// bust out right here if the user wants to exit
if (line == ",exit")
{
return;
}
var lineTokens = i.tokenizer.Tokenize(line);
foreach (Token token in lineTokens)
{
partialInput.Add(token);
if (token.Type == TokenType.OpenParen)
{
openParens++;
}
else if (token.Type == TokenType.CloseParen)
{
closeParens++;
}
}
if (openParens == closeParens)
{
completeInput = true;
break;
}
}
if (partialInput.Count < 1)
{
continue;
}
Console.WriteLine(i.Interpret(partialInput));
}
}
