That's nice. Common Lisp implementations, too, allow any characters in symbol names, even spaces and the empty string. Javascript allows wide character set too.

That's nice. Common Lisp implementations, too, allow any characters in symbol names, even spaces and the empty string. Javascript allows wide character set too. I think it's good that languages break out of [a-zA-Z_-]. That said, I'd use pretty limited charset in internationally developed multi-OS code base. People have different keyboards, input systems, knowledge etc.