Re: [dev] [announce] ff2sixel: view farbfeld images in terminal

From: Alexander Krotov <>
Date: Sat, 25 Mar 2017 22:42:11 +0300

On Wed, Mar 22, 2017 at 11:55:33AM +0100, hiro wrote:
> example: make the terminal smaller, make it bigger again: lines have
> been cut off...

It is a bug in st and xterm. tmux and screen handle it by reflowing
lines, wrapping them if necessary. dvtm makes end of lines invisible
[1] but keeps them in memory.

I have already created a patch to fix it in st, will submit it to after some cleanup. I implemented dvtm approach.
It is simpler, because number of lines always stays the same.
Therefore, no lines are removed. And we don't have an option to
move them to scrollback, because st has no scrollback.

Just a thought: adding scrollback to st can make code simpler and
faster. Goal of st is not to have unlimited scrollback buffer [2],
but using ring buffer should be ok. Just allocate 1024 lines at
the start and use part of them. No need to shuffle lines around
in tresize etc. Scrollback patch [3] can be reimplemented along
these lines without adding separate history variable.

Received on Sat Mar 25 2017 - 20:42:11 CET

This archive was generated by hypermail 2.3.0 : Sat Mar 25 2017 - 20:48:12 CET