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From: Aggu Sern <agguser@gmail.com>
Date: Sun, 2 Feb 2020 11:50:08 +0700
Message-ID: <CA+gg2UbTwc0=jR--GYrbONTQDX+9A12g3jHTuGJmTjWViceEmQ@mail.gmail.com>
Subject: Process substitution within parameter expansion
To: zsh-workers@zsh.org
Content-Type: multipart/alternative; boundary="000000000000ac94d5059d908bd9"

--000000000000ac94d5059d908bd9
Content-Type: text/plain; charset="UTF-8"

$ cat =(echo 'abc' | sed 's/^a/A/; s/c$/C/')
AbC

$ cat ${:-=(echo 'abc' | sed 's/^a/A/; s/c$/C/')}
zsh: no matches found: s/^a/A/

How to fix the error? Is this a bug?

My intention is to "embed" `=(...)` (e.g. `mpv --playlist=${:-=(...)}`)
without using anonymous function (e.g. `() { mpv --playlist=$1 } =(...)`).

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