public Lexer(SourceReader reader)
{
mReader = reader;
mBeginningOfLine = false;
mBeginningOfBlock = false;
mOffsideLines = new Stack<int>();
mOffsideLines.Push(1);
}
private bool Interpret(SourceReader reader, bool interactive)
{
try
{
Lexer lexer = new Lexer(reader);
Parser parser = new Parser(lexer);
while (true)
{
ISList<IInsn> insns = Compile(parser);
if (insns == null)
{
return false;
}
IValue result = Run(insns);
if (result == null)
{
return false;
}
if (interactive)
{
Console.WriteLine(" => {0}", result);
}
}
}
catch (EndOfStreamException)
{
return true;
}
}