Problem with empty terminals

[sirdude]

The following grammar works with bnfc -c or --cpp but does not build with haskell

Prog. Program ::= Defin ;
Pe. Program ::= "" ;
Def. Defin ::= "woo" ;

It will generate files but when trying to make I get the following:
% make
happy -gca ParTest.y
alex -g LexTest.x
LexTest.x:25:3: parse error

[gdetrez]

BNFC chokes on empty terminals. If you want an empty production do this instead:

Prog. Program ::= Defin ;
Pe. Program ::= ;
Def. Defin ::= "woo" ;

[gdetrez]

Fixed in a3a4149.