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bug#48716: 28.0.50; Spurious output from term-emulate-terminal when in l
From: |
Sean Whitton |
Subject: |
bug#48716: 28.0.50; Spurious output from term-emulate-terminal when in line-mode |
Date: |
Thu, 02 Jun 2022 19:46:14 -0700 |
User-agent: |
Notmuch/0.36 Emacs/29.0.50 (x86_64-pc-linux-gnu) |
Hello,
On Fri 28 May 2021 at 04:00PM +01, Massimiliano Mirra wrote:
> Spurious output is occasionally produced when running a command
> with `make-term', and the command performs cursor movements and
> partial screen clears.
>
> [...]
>
> The culprit appears to be following lines from `term-emulate-terminal'
> in term.el; commenting them out fixes this problem:
>
> (when (and (> (point-max) (process-mark proc))
> (term-in-line-mode))
> (narrow-to-region (point-min) (process-mark proc)))
The code assumes anything after the process mark is prospective input,
which is very often going to be wrong when the command moves the cursor
-- even if the command just emits \r. One way to fix this might be to
add text properties to actual output, thereby distinguishing it from
something the user has typed.
--
Sean Whitton
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- bug#48716: 28.0.50; Spurious output from term-emulate-terminal when in line-mode,
Sean Whitton <=