vi copy/paste - maybe a bit OT
macportsusers-20171215 at billmail.scconsult.com
Thu Jul 4 20:22:24 UTC 2019
On 4 Jul 2019, at 14:55, Michael wrote:
> On 2019-07-04, at 3:03 AM, Richard L. Hamilton <rlhamil at smart.net>
>> AFAIK, if your terminal display is restored after exiting vi, the
>> terminal provides (and vi uses, via the smcup and rmcup terminfo
>> strings) an alternate
>> buffer, for full-screen use. Ideally, that alternate buffer should
>> NOT include any scroll back, so I think the behavior you describe
>> might even be a bug.
> This "Separate screen" behavior has always irked me. It means that as
> soon as I leave a curses-based display -- such as anything going
> through "less" as a pager -- such as man pages -- then I lose all the
> information I was looking at a moment ago.
'export LESS=-FRX' is a line I put in ~/.bashrc or ~/.shrc on every
machine I log in to. If you only want to eliminate the clear-on-exit,
you can omit 'FR' or see 'man less' for all of the options. Obviously
this is only for 'less' and not other programs like vi(m).
> The problem for me is always that switching to a termcap/terminfo
> setting that doesn't have this problem results in other settings being
> lost because it's too generic.
> Right now, I use "TERM=ansi", because I cannot stand that "We'll clear
> your screen of the info you wanted now" behavior.
> What's the best term setting to use for maximum abilities without
> losing that data,
That's a very good question. I suspect that there's some
ansi/vt220/xterm variant that disables the alternate screen buffer but
retains xterm-like functionality, but I'm not sure what it is.
There's a page at https://www.shallowsky.com/linux/noaltscreen.html
which offers advice on this and a "xterm-noalt" definition which may or
may not do what you want. I have NOT tested anything there, it is just
the 1st result from searching for 'xterm alternate screen'
> or is there some way to get that data back when you leave full-screen
> mode? (is there a second output buffer that can be switched between
Yes. There's the "Show Alternate Screen/Hide Alternate Screen" commands
in Terminal's View menu. Do those not do what you want?
bill at scconsult.com or billcole at apache.org
(AKA @grumpybozo and many *@billmail.scconsult.com addresses)
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