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unkown escape characters

See original GitHub issue

In some scenarios a terminal page that connects to a existing pty process that running a nodejs or some commands in-progress, we noticing few escape character that is been sent to backned.

We trying to understand what those means, as those are not filtered they are sent back to frontend and we see them as junk characters.

[5;52R
[3;52R
[1;52R
[19;52R
[19;52R
[19;52R
[19;88R

We couldn’t determine ourself as we are not sending that text from our end, so it seems like something from xterm doing it internally. If you could guide us what those escape character means and how can we avoid showing in the UI.

Details

Browser and browser version: Chrome
OS version: MacOs
xterm.js version: 3.4.1

Issue Analytics

State:
Created 5 years ago
Comments:5 (4 by maintainers)

Top GitHub Comments

1reaction

jerchcommented, Oct 26, 2018

@veeramarni Those are cursor position reports, they will be sent by the emulator after a device status request. Means some program you are using requests cursor positions. If those are not consumed they stack up in STDIN until some later program reads STDIN (a shell would also echo it back to the emulator since it treats STDIN as user input).

0reactions

jerchcommented, Nov 14, 2018

Closing the issue since it is not caused by xterm.js.

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