modified:   lexer.py
Now with extra comments!
	modified:   lexer.py
	modified:   parse.py
More comments and a side of functionality
	modified:   lexer.py
	modified:   parse.py
Even more stuff. Pretty sure I'm violating DRY pretty badly, but I don't feel like refactoring this right now.
	modified:   lexer.py
	modified:   parse.py
First completed, (hopefully) functional versions of these files