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In-Reply-To: <20161109180219.GA28703@aurora-borealis.phear.org>
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From: Bart Schaefer <schaefer@brasslantern.com>
Date: Wed, 9 Nov 2016 11:27:41 -0800
Message-ID: <CAH+w=7bU8SA92+VHwPwJBTaPX4a6JnJ3Y3iukPv+9h0ibj3e5Q@mail.gmail.com>
Subject: Re: would it be nice to support =<< ? (not the haskell one)
To: Zsh Users <zsh-users@zsh.org>
Cc: Marc Chantreux <khatar@phear.org>
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On Wed, Nov 9, 2016 at 10:02 AM,  <khatar@phear.org> wrote:
>
> i was thinking of a =<< operator so we could write
>
>         element=<<.
>                 { "user": "$USER", "uid": "$UID" }
>         .


You can do this:

    element=$(<<.
        { "user": "$USER", "uid": "$UID" }
    .
    )

This is handled efficiently, with a minimum of forking.  Note that
it's necessary to follow the end marker with a newline before adding
the closing paren.