cc.py

#!/usr/bin/env python

import sys

class Lexer:

	NUM, ID, IF, ELSE, WHILE, DO, LBRA, RBRA, LPAR, RPAR, PLUS, MINUS, LESS, \
	EQUAL, SEMICOLON, EOF = range(16)

	SYMBOLS = { '{': LBRA, '}': RBRA, '=': EQUAL, ';': SEMICOLON, '(': LPAR,