Re: bin/47597: local and $() don't play well with each other

[Alan Barrett <apb%cequrux.com@localhost>]

On Fri, 01 Mar 2013, Robert Elz wrote:
> If the existing shells (at the time) all implemented
>         var=value func_call
> as leaving $var set to value after func_call completes, then 
> that is what the standard has to say happens - regardless of how 
> stupid it is.

If the standard is not willing to declare existing implementations 
to be broken then it has to allow the existing stupid way, but it 
doesn't have to mandate the stupid way.  The standard could say 
that it's unspecified whether it works the smart way or the stupid 
way.  The standard could also deprecate the stupid way and say 
that a future revision if the standard will require the smart way.

> | So there is no urge to change NetBSD sh to match an 
> | interpretation that is not guaranteed to be "the" 
> | specification.
>
> I'm kind of hoping for something more than "no urge" --- I'd 
> prefer an explicit statement that NetBSD is going to ignore the 
> standard in this area.

Me too.

--apb (Alan Barrett)