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From: Bart Schaefer <schaefer@brasslantern.com>
Message-Id: <160616084300.ZM24705@torch.brasslantern.com>
Date: Thu, 16 Jun 2016 08:43:00 -0700
In-Reply-To: <CAHYJk3SOca2W212_KZLskjD0iUOy7gdxUx81H07B07HGHNN=CQ@mail.gmail.com>
Comments: In reply to Mikael Magnusson <mikachu@gmail.com>
        "Re: Feature request: two level sorting" (Jun 16,  1:02am)
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To: Zsh Users <zsh-users@zsh.org>
Subject: Re: Feature request: two level sorting
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On Jun 16,  1:02am, Mikael Magnusson wrote:
}
} Well, this old trick always works if you don't mind depending on /
} being readable, but that's probably a safe assumption usually.
} 
} % myarray=("aaa-A" "aab-B" "aac-A" "aad-C")
} % echo /(e:'reply=($myarray)':oe:'REPLY=${REPLY#*-}':)
} aac-A aaa-A aab-B aad-C

Heh, you don't even need / to be readable, any single readable file
will do:

torch% echo /dev/null(e:'reply=($myarray)':oe:'REPLY=${REPLY#*-}':)
aac-A aaa-A aab-B aad-C

Rather hard to embed that in a parameter expansion context without
using a process substitution, though.  And I don't think it covers
the secondary sort: note that in Sebastian's original example he
wants (aaa-A aac-A) but the above output has them the other way
(the sort isn't guaranteed to be stable).