From: Phil Pennock <phil.pennock@globnix.org>
To: zsh-users@sunsite.dk
Subject: Re: Useful zsh/datetime things
Date: Thu, 9 Oct 2003 17:49:26 +0000 [thread overview]
Message-ID: <20031009174926.GA12280@globnix.org> (raw)
In-Reply-To: <1031009172754.ZM10491@candle.brasslantern.com>
On 2003-10-09 at 17:27 +0000, Bart Schaefer wrote:
> A useful addition to strftime would be an option to assign the result to a
> parameter, similar to the -A and -H options of "stat" (from zsh/stat).
Reminding myself about this stuff led me to try something, the results
of which have me slightly confused. I'm trying to figure out what's
happening with "print -l" here.
% stat -H foo -s .
% print -l ${(kv)foo} | pr -at2
% print -l "${(@kv)foo}" | pr -at2
The second command doesn't give proper results, since there is no value
shown for the key 'link', so after that things are mis-placed.
But why is there not a blank line? If the key exists but is undefined,
it's the empty string? The third command shows that when treated as the
argument "", a blank line is shown and pr(1) can recombine things
correctly.
Given that there's no white-space splitting happening, why does the
second print differ from the others?
% print -l alpha '' beta '' gamma
% s=''
% print -l alpha $s beta $s gamma
% print -l alpha "$s" beta "$s" gamma
% print $ZSH_VERSION
4.0.6
If I had SH_WORD_SPLIT set, this would make more sense, but I don't.
Behaviour verified with "zsh -f".
I'm missing something really obvious, aren't I?
--
2001: Blogging invented. Promises to change the way people bore strangers with
banal anecdotes about their pets. <http://www.thelemon.net/issues/timeline.php>
next prev parent reply other threads:[~2003-10-09 17:49 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-09 17:27 Bart Schaefer
2003-10-09 17:49 ` Phil Pennock [this message]
2003-10-10 4:40 ` Bart Schaefer
2003-10-10 12:42 ` Phil Pennock
2003-10-09 18:04 ` Peter Stephenson
2003-10-09 18:12 ` Phil Pennock
2003-10-10 2:15 ` Bart Schaefer
2003-10-10 12:56 ` Phil Pennock
2003-10-10 16:46 ` Dan Nelson
2003-10-09 21:29 ` Oliver Kiddle
2003-10-10 2:12 ` Bart Schaefer
2003-10-10 9:30 ` Peter Stephenson
2003-10-22 15:31 ` Bart Schaefer
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