Re: CVS commit: src/lib/libcurses

[Roy Marples <roy%marples.name@localhost>]

On 05/10/2018 14:09, Valery Ushakov wrote:
> On Fri, Oct 05, 2018 at 11:59:05 +0000, Roy Marples wrote:
>
> > Module Name:	src
> > Committed By:	roy
> > Date:		Fri Oct  5 11:59:05 UTC 2018
> >
> > Modified Files:
> > 	src/lib/libcurses: newwin.c refresh.c
> >
> > Log Message:
> > curses: allow drawing the lowest right hand cell of the terminal
> >
> > This is a historical behaviour that needs fixing
> > If any terminal does scroll when drawing in the lowest right hand cell
> > of the terminal then an entry should be made in the terminfo database
> > (currently there is no standard code) to state that and define
> > __SCROLLWIN as before.
> >
> > Fixes PR# 30978.
>
> At least GNU termcap had "LP" capability for that:
>
> https://www.gnu.org/software/termutils/manual/termcap-1.3/html_node/termcap_27.html#SEC27
>
> E.g. GNU screen sets LP in its exported TERMCAP variable.

It seems that LP was a GNU termcap extension - it doesn't exist in any 
official termcap or terminfo listing. It also doesn't exist in ncurses.

Our terminfo database says this:
# (screen3: removed unknown ":xv:LP:G0:" -- esr)

Our termcap has never defined it either after a search through CVS so I 
think we can remain confident that every terminal we support is fine.

Roy