Re: RFE: Please allow unicode ID chars in identifiers

[L A Walsh]

Chet Ramey wrote:
> On 6/1/17 8:42 PM, L A Walsh wrote:
>   
> > It would be a useful upgrade besides being a "good world citizen" ;-).
> >     
>
> The only way this makes sense is to extend the allowable set of
> characters from the portable character set to the current locale.
>
>   
> > I'm guessing that if POSIX was set, then they'd be limited
> > to the ASCII (American Standard Code for Information Interchange)
> > set.  ;^)
> >     
>
> Not quite; it's a subset of characters from the Portable Character Set.
> That's the set of characters that Posix requires to be present in all
> locales supported by Posix systems.
>
> http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_235
>   
Aren't all of those characters in ASCII?  I.e. wouldn't
ASCII be a limiting set?  It may not be the minimal set, since
many characters in ASCII aren't usable in varnames, but I
thought the allowed chars in vars were some set <= ASCII?

FWIW, though, in this case, since function names seem to
allow chars beyond ASCII, it seems consistent to, allow
a similar extension in varnames as is allowed in function
names.

It seems like it would be a greater support burden to
allow one set for functions while restricting the allowed
characters for variables to some smaller set, no?