c4 - remove old 2

RegExRules

-program: 
-^ program +(IDENT) *\(input,output\); *$
-
-ident:
-([a-zA-Z_][a-zA-Z_1-9]*)
-
-vars:
-^ *var +(IDENTS *: *TIPO *;)* *$
-
-idents:
-(IDENT)(, *IDENT)*
-
-tipo:
-integer
-
-bloco:
-^ *begin *$
-(EXPR)*
-^ *end *$
-
-expr:
- *IDENT *\(param\); *
- 
-param:
-num || ident
- 
-op:[+-*/&|^(&&)(||)(^^)]
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