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From: Paul Hoffman <nkuitse@nkuitse.com>
To: zsh-users@zsh.org
Subject: Re: How should I construct this?
Date: Wed, 24 Apr 2013 21:29:20 -0400	[thread overview]
Message-ID: <20130425012920.GA692@phisen> (raw)
In-Reply-To: <F0BC3EAB-7C1F-47C6-93C5-E64C5A6501A0@gmail.com>

On Wed, Apr 24, 2013 at 06:40:25PM -0400, TJ Luoma wrote:
> 
> 
> On 24 Apr 2013, at 15:50, Bart Schaefer wrote:
> 
> >In addition to Thomas's hashtables remarks, zsh "for" also supports
> >populating multiple variables each pass around the loop.
> >
> >So if you have an ordinary array like your example (BTW I hope those
> >aren't your real passwords) then you can do
> >
> >	for SSID WIFIPASS in $ALL_WIFI_NETWORKS
> >	do
> >		# Attempt to join network $SSID using $WIFIPASS
> >	done
> 
> The only drawback that I have found to this is that it ignores "" for
> empty passwords

The "@" flag is your friend (see "Parameter Expansion Flags" in 
zshexpn):

    typeset -a wifi
    wifi=( ... )
    for ssid pass in "${(@)wifi}"; do ...; done

Sorry for the all-lower-case examples -- I'm lazy.

Paul.

-- 
Paul Hoffman <nkuitse@nkuitse.com>


      reply	other threads:[~2013-04-25  1:29 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-24 18:16 TJ Luoma
2013-04-24 18:39 ` thomasg
2013-04-24 18:56   ` TJ Luoma
2013-04-24 19:53     ` thomasg
2013-04-24 19:08   ` peter.d.miller
2013-04-24 18:49 ` Paul Hoffman
2013-04-24 19:50 ` Bart Schaefer
2013-04-24 22:30   ` TJ Luoma
2013-04-24 22:40   ` TJ Luoma
2013-04-25  1:29     ` Paul Hoffman [this message]

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