From: DervishD <raul@viadomus.com>
To: raul@viadomus.com, zefram@fysh.org
Cc: zsh-workers@sunsite.dk
Subject: Re: Bad expansion
Date: Mon, 21 Jan 2002 20:40:43 +0100 [thread overview]
Message-ID: <E16SkJ9-0001G9-00@DervishD.viadomus.com> (raw)
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Hello Zefram :))
>> # Bad substitution
>> echo ${${testing[1]}_VALUE}
>echo ${(e):-\$${testing[1]}_VALUE}
>The :-\ is a smiley that means "maybe there ought to be a neater way".
Are you joking? XDD It works, but, AFAIK, this (apart from the
obvious smiley) means:
"Expand <NULL> identifier, and, if it is not defined or missing
(which is true), expand the other thing, that is, \$${testing[1]}_VALUE"
But, why? I mean, maybe there ought to be a neater way ;)))
Really, I'm not an expert about parameter expansion. Just the
simple fact that you have provided me a solution is magic for me.
Thanks a lot Zefram :)) And nice smile-like solution ;)))))
Raúl
next reply other threads:[~2002-01-21 19:28 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-21 19:40 DervishD [this message]
2002-01-21 19:46 ` DervishD
2002-01-21 21:31 ` Bart Schaefer
-- strict thread matches above, loose matches on Subject: below --
2002-01-22 0:17 DervishD
2002-01-21 14:56 DervishD
2002-01-21 14:51 ` Zefram
2002-01-21 17:12 ` Bart Schaefer
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