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stty size doesn't work

X-seq: zsh-users 28259
From: Ray Andrews <rayandrews@xxxxxxxxxxx>
To: Zsh Users <zsh-users@xxxxxxx>
Subject: stty size doesn't work
Date: Sun, 23 Oct 2022 13:47:10 -0700
Archived-at: <https://zsh.org/users/28259>
List-id: <zsh-users.zsh.org>

I doubt this is zsh's problem but she may have a solution just the same. I do this in my 'i' function:

width=${=$( stty size )[2]}

... and it works fine, however if I call the function thusly:

_function_test ()
{
   local integer i=0
   while read aa; do
        let i++
        eval ${=aa} 2> /dev/null
    done
}

$ _function_test <<< "i path"

... 'width' is zero. I think this is some 'stty' issue, still the function will be running in a terminal and the terminal has a width so it puzzles me that no width can be reported.

Follow-Ups:
- Re: stty size doesn't work
  - From: Roman Perepelitsa

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