-- //     [12] comment ::= '#' (char_word | char_space)+

comment = (char '#' >> many ( allowedChar <|> spaceChar ) >> lineBreak >> return ()) <?> "comment"
comment = (char '#' >> many ( allowedChar <|> spaceChar ) >> lineBreak >> return ()) <?> "comment"
comment = (char '#' >> many ( allowedChar <|> spaceChar ) >> lineBreak >> return ()) <?> "comment"