Ralf Hinze wrote:
>
> * make '_' lexically a valid identifier character anywhere
> * but disallow identifiers starting with '_'
>
> Thus '___' would lex as '___' but then be rejected. '_' on its own remains a
> wild-card pattern, and illegal in expressions.
>
>
> ] `_' is a special case whatever option one chooses. So I can see no real
> ] advantage in disallowing identifiers starting with '_'.
IMHO the simplest rule would be to allow '_' anywhere a lowercase letter
is
allowed. And "_" becomes just an ordinary keyword.
Cheers,
- Andreas
