So I'm making a programming language and the first step is the lexer I think. So here's my lexer. It's not the best, and I'll probably scrap this and make a better one, but I just started out and don't really know what I'm doing.

For the input, just enter a variable initialization like this:

// it only supports these three types right now

int answer = 10;
bool lightSwitch = false;
char letter = 's';

I'm still working in the parser though.