Date: Sun, 05 Mar 2000 20:54:27 -0800 From: Doug Barton <Doug@gorean.org> To: W Gerald Hicks <jhix@mindspring.com> Cc: hackers@FreeBSD.ORG Subject: Re: empty lists in for Message-ID: <38C33A03.A55DEFAF@gorean.org> References: <57223.952177003@axl.ops.uunet.co.za> <20000305093539F.jhix@mindspring.com> <38C2B805.EA899C32@gorean.org> <20000305204115E.jhix@mindspring.com>
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W Gerald Hicks wrote:
> Even though it's my preferred shell, I certainly wouldn't say
> that Bash is any sort of standard, certainly not in the POSIX
> sense.
Well, one of Chet's stated goals is to be as POSIX as possible. I agree
that letting the standard speak for itself is a better idea, I was just
giving a perspective.
> Imagine processing a possibly empty list constructed from a
> 'make' expansion... Without this behavior one would have to
> code a guard of some sort around the 'for' construct.
John Polstra already pointed this out, and Bash handles this like you
would expect. There is a difference between expanding an empty list and
trying to expand a list that isn't there.
Doug
--
"Welcome to the desert of the real."
- Laurence Fishburne as Morpheus, "The Matrix"
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