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From: "Mark J. Reed" <markjreed@gmail.com>
To: zsh-workers@zsh.org
Subject: Bug: reading from tty inside process substitution
Date: Sun, 12 Nov 2023 10:59:33 -0500	[thread overview]
Message-ID: <CAA=-s3xCf4wx826U8jEjO_j5-1kcTi8v2=VZPiabKMo-meKq0Q@mail.gmail.com> (raw)

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The below code hangs after reading the line from the terminal:

    read foo < <(read bar </dev/tty; echo $bar)

The actual use case I ran into this involved a select, which also hangs
after item selection:

    read foo < <(select item in a b c; do break; done </dev/tty >/dev/tty
2>&1; echo $item)

Both commands work as intended in both bash and ksh.

If I replace the outer `read` with a command substitution, it works in zsh
as well (it started out as `read` because I was getting multiple values out
of the `select`ed line).

I'm running zsh 5.9, tested on macOS 13.6 and 14.0 and Ubuntu 22.04.3
-- 
Mark J. Reed <markjreed@gmail.com>

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             reply	other threads:[~2023-11-12 16:00 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-12 15:59 Mark J. Reed [this message]
2023-11-12 18:09 ` Bart Schaefer
2023-11-12 21:50   ` Bart Schaefer
2023-11-15  3:33   ` Bart Schaefer
2023-11-15  4:42     ` Bart Schaefer
2023-11-15  5:00       ` Bart Schaefer
2023-11-16  4:58         ` Bart Schaefer
2023-11-17  1:27           ` [PATCH] reading from large or "infinite" source in multio Bart Schaefer
2023-11-18 23:24             ` Bart Schaefer
2023-11-16  2:35       ` [PATCH] reading from tty inside process substitution Bart Schaefer

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