* stty size doesn't work
@ 2022-10-23 20:47 Ray Andrews
2022-10-23 22:21 ` Roman Perepelitsa
0 siblings, 1 reply; 3+ messages in thread
From: Ray Andrews @ 2022-10-23 20:47 UTC (permalink / raw)
To: Zsh Users
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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.
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: stty size doesn't work
2022-10-23 20:47 stty size doesn't work Ray Andrews
@ 2022-10-23 22:21 ` Roman Perepelitsa
2022-10-24 2:59 ` Ray Andrews
0 siblings, 1 reply; 3+ messages in thread
From: Roman Perepelitsa @ 2022-10-23 22:21 UTC (permalink / raw)
To: Ray Andrews; +Cc: Zsh Users
On Sun, Oct 23, 2022 at 10:47 PM Ray Andrews <rayandrews@eastlink.ca> wrote:
>
> 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.
`stty size` needs the TTY as stdin. When you are invoking it from
_function_test, stdin is not a TTY. Use $COLUMNS instead. There is
also $LINES if you need height.
width=$COLUMNS
Roman.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2022-10-24 3:00 UTC | newest]
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2022-10-23 20:47 stty size doesn't work Ray Andrews
2022-10-23 22:21 ` Roman Perepelitsa
2022-10-24 2:59 ` Ray Andrews
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