Re: AS_DIRNAME and expr

[Paul Eggert]

> From: Akim Demaille <[EMAIL PROTECTED]>
> Date: 29 Nov 2000 12:29:09 +0100
> 
> it's not clear to me whether there is a difference between the
> empty as a literal or as the result of an evaluation.

I don't see any difference in the standard's wording.  They should
be treated the same.

> could you try this on your solaris?
> 
>         expr ''

It returns the empty string on both Solaris 2.5.1 sparc
(/usr/bin/expr) and Solaris 8 sparc (both /usr/bin/expr and
/usr/xpg4/bin/expr).  For what it's worth, the standard requires this
behavior.