Re: [screen-devel] screen + tcsh

[Josef Ridky]

term=xterm is used for avoiding to remove lines in vim when is pressed some 
specific key combination.

Josef

----- Original Message -----
| From: "Amadeusz Sławiński" <address@hidden>
| To: address@hidden
| Sent: Tuesday, October 18, 2016 11:51:09 PM
| Subject: Re: [screen-devel] screen + tcsh
| 
| On Tue, 18 Oct 2016 09:28:29 -0400 (EDT)
| Josef Ridky <address@hidden> wrote:
| 
| > Hi,
| > 
| > I would like to ask for one thing about keybinding in screen.
| > Following problem is the reason, why am I asking:
| > 
| > -----------------------------------
| > Description of problem:
| > The home and end keys no longer work in screen when using tcsh as
| > shell.
| > 
| > Steps to Reproduce:
| > 1. start screen:
| > $ screen
| > 
| > 2. start tcsh
| > $ tcsh
| > 
| > 3. make sure home and end are bound:
| > $ bindkey | egrep '^(home|end)'
| > home           -> beginning-of-line
| > end            -> end-of-line
| > 
| > 4. press home or end
| > 
| > Actual results:
| > pressing "home" and "end" prints a "~".
| > 
| > Expected results:
| > cursor jumps to the beginning or end of the line.
| > -----------------------------------
| > 
| > I think, that this behavior is caused by using 'term=xterm' in config
| > file. Problem is, that this line has to be in the config file,
| > because it solves other, much worse problem.
| > 
| > Does anyone know, how to solve this without removing term=xterm?
| > Thanks for your ideas.
| > 
| > Regards
| > 
| > Josef Ridky
| > Associate Software Engineer
| > Core Services Team
| > Red Hat Czech, s.r.o.
| > 
| > 
| 
| Hi,
| 
| yes, this may behave the way you describe, because terminfo entries for
| those terms are different
| 
| On my system:
| % infocmp xterm| grep 'khome\|kend'
|  kdch1=\E[3~, kend=\EOF, kent=\EOM, kf1=\EOP, kf10=\E[21~,
| kf8=\E[19~, kf9=\E[20~, khome=\EOH, kich1=\E[2~,
| % infocmp screen| grep 'khome\|kend'
|  kend=\E[4~, kf1=\EOP, kf10=\E[21~, kf11=\E[23~,
|  khome=\E[1~, kich1=\E[2~, knp=\E[6~, kpp=\E[5~, nel=\EE,
| 
| Notice that khome and kend are different.
| 
| You may also compare escapes generated by those keys between outside
| and inside of screen by typing 'Ctrl+v, home' and 'Ctrl+v, End'.
| 
| To fix this you can try adding something like this to your screenrc
| termcapinfo xterm @7=\E[4~:kh=\E[1~
| 
| (magic letters are from 'man terminfo')
| 
| 
| Btw, what worse problem does it solve?
| 
| BR,
| Amadeusz
| 
|