Monday, October 16, 2017

Re: stray control characters appear on vim startup


On Mon, Oct 16, 2017 at 5:14 PM, Bram Moolenaar <Bram@moolenaar.net> wrote:

John Passaro wrote:

> Sometimes when I open a new vim session, unpredictably, various characters
> appear on the first line, they look like they are terminal control
> characters but I don't know for sure.
>
> For example:
> ;2R^[[>0;95;0c
>
> They go away as soon as I type over them or redraw the screen.
>
> This doesn't happen consistently or according to any predictable pattern
> (at least not that I can discern). It only started relatively recently, and
> I don't recall that I've updated vim or made any changes to my environment
> that might have prompted it (I'm using xterm, bash-4.4, vim 8.0).
>
> Does anybody have any idea how I can investigate this?

That looks like the xterm version string (but probably not in xterm).
When this happens, what does this do:
        echo v:termresponse
^[[>0;95;0c
(the "^[" at the beginning is green text, in case that is important)
Does this tell us anything useful? It does seem to overlap with the string I'm seeing.


Do you execute a shell command during startup?

Not to my knowledge, though it is possible one of my plugins is doing so.


--
Nothing is impossible for the man who doesn't have to do it.

 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\  an exciting new programming language -- http://www.Zimbu.org        ///
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