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Re: AS_DIRNAME and expr

From: Akim Demaille
Subject: Re: AS_DIRNAME and expr
Date: 29 Nov 2000 14:31:14 +0100
User-agent: Gnus/5.0807 (Gnus v5.8.7) XEmacs/21.1 (Channel Islands) 
>>>>> "Paul" == Paul Eggert <address@hidden> writes:

>> expr ''

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

Thanks Paul!

So, maybe the real way out is the opposite: \| 0, and work with 0
instead of ''?
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