Ctrl-A, Ctrl-E have no effect
Graham Lawrence
gl00637 at gmail.com
Sun Dec 14 17:52:20 UTC 2014
Actually, I do seem to have the problem solved, and also to have achieved
something I did not think possible, completely consistent keystroke
behavior across the three apps I use most, vim lynx and mc, within both
screen and fluxbox.
The problem with mc seemed to derive from that it has multiple
configuration files, in /etc, /root, /usr/share, and ~/.config, and I
believe these are hierarchical, that is you cannot change behavior lower
down that hierarchy if it was defined differently at a higher level.
So I destroyed every mc directory except that in /etc, and worked with that
to get the results I wanted. Another complication was that, in xterm, Alt+
key combos produce accented (8 bit ascii characters) instead of whatever
control function one expected. Although that behavior can be prevented in
xterm, I found it more expedient to keep it, and not use Alt+ combinations
at all.
Back in mc.keymap, apparently you can specify any key combo you want, and
mc will respond to it, so long as there are no other complicating factors
such as I have described. So now I have Ctrl+A for Home, Ctrl+E for End,
Ctrl+F for PageDown and Ctrl+B for PageUp, identically in vim, lynx and mc,
and Ctrl+z <window Number> to switch between apps in both screen and
fluxbox.
Once the appropriate behavior was obtained in mc, I simply copied the mc
directories in /etc and /root (this one does not contain mc.keymap, but an
ini file and a filepath hotkey list and a couple of others whose purpose I
did not determine) into /usr and ~/.config respectively, and I now have
completely identical behavior from mc both as user and as root.
On Sat, Dec 13, 2014 at 4:45 AM, Paul Sokolovsky <pmiscml at gmail.com> wrote:
>
> Hello,
>
> On Sun, 7 Dec 2014 09:51:06 -0800
> Graham Lawrence <gl00637 at gmail.com> wrote:
>
> []
> > > > My laptop lacks certain keys, notably Home, End, PgUp and
> > > > PgDown. Alt-V and Ctrl-V provide the function of PgUp and
> > > > PgDown. Supposedly Ctrl-A and Ctrl-E should supply those of
> > > > Home and End, but in fact do nothing.
> > >
> > > Hmm, and prooflinks for "should" part?
> >
> > Not sure what you mean by this, but I'm referring to
> > both /etc/mc/mc.keymap and /etc/mc/mc.default.keymap as the source of
> > "should ...", which on my system lists these two entries
> > Home = ctrl-a; alt-lt; home; a1
> > End = ctrl-e; alt-gt; end; c1
> > None of these options work for me.
>
> Yes, that's what I meant, thanks. I just find it surprising in
> non-exciting sense that there're too many key combos in mc, not known
> to many people (for example, I find it quite confusing that Ctrl+V is
> bound to "page down").
>
> > > > I've tried putting
> > > > other key combos in mc.keymap instead, but they also had no
> > > > effect.
> > > >
> > > > Do I need to make a special compile of MC to get their
> > > > particular functionality, or is there some other means to
> > > > that end?
> > >
> > > You can try "Learn keys" functionality to redefine mc keys to some
> > > extent.
> > >
> >
> > That I did, with no success. I duly pressed <Space> with Home and
> > End the current selection, pressed Ctrl-A/E respectively and then
> > repeated that key-combo when the Help message cleared, but in neither
> > case did it then show OK for the choice.
>
> I can confirm that it doesn't work for me either (with git master).
>
> Out of curiosity, do you have your keys broken, or you one of these
> laptop novelties which don't have important keys? In the latter case, I
> gather there should be hardware/firmware key combos to emulate Home,
> End, PgUp, PgDn, etc. At least, that's what I have on Samsung ARM
> Chromebook.
>
> Otherwise, yes, I guess the only option currently is to patch source
> code.
>
>
> --
> Best regards,
> Paul mailto:pmiscml at gmail.com
>
--
Graham Lawrence
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