On 2020-11-02, Charles Campbell wrote:
> Hello!
>
> Recently, as in the last year or so, I've been getting unwanted escape
> sequences; I've tracked down the issue to a simple operation:
>
> vim -u NONE -U NONE
> :q
>
> and I get left with <esc>>4;m<esc>>4;2m. My system uses linux (Scientific
> Linux 7.9), xterm-256color, and terminfo. In using infotmp xterm-256color I do
> not find any escape sequences using that format. There are three that are
> close:
>
> is2=\E[!p\E[?3;4l\E[4l\E>
> rmkx=\E[?1l\E>
> rs2=\E[!p\E[?3;4l\E[4l\E>
>
> (ie. these are the only places in the infocmp output that show \E> anywhere).
>
> These unwanted escape sequences are normally just annoying, but they have
> bothered some scripts I've written (bothered = as in caused to fail).
Those would be the modifyOtherKeys escape sequences supported by
some terminals including xterm. You can read about them here:
:help modifyOtherKeys
or with
:helpgrep \cmodifyotherkeys
:helpgrep t_TI
If your terminal doesn't support them, you should be able to
suppress Vim's use of them with these:
:set t_TI=
:set t_TE=
Not all of the terminals I use support them, but xterm version 344
does.
Regards,
Gary
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