Info request on menu's recently used list

Sun May 15 09:19:03 BST 2011

On Sunday, May 15, 2011 04:15:23 AM Duncan did opine:

> gene heskett posted on Sat, 14 May 2011 21:21:13 -0400 as excerpted:
> > On Saturday, May 14, 2011 09:17:52 PM Duncan did opine:
> >> gene heskett posted on Sat, 14 May 2011 15:59:38 -0400 as excerpted:
> >> > (other than something is stealing the first few F keys from mc,
> >> > forcing me to use the mouse.  That sound?  Its the sound of my
> >> > favorite ox being gored.  In the future, whatever keys mc asks for
> >> > should be granted provided it has focus.
> >> 
> >> That one... Here, I've gotten the "unshifted" set of fX to work in
> >> mc, so I can
> >> save(or-user-menu)/view/edit/copy/move/mkdir(find)/delete/menu-
> >> activate/quit, but the "shifted" set don't reliably work.  So for
> >> instance, I have to repeatedly hit the f7/find and then enter keys,
> >> instead of being able to hit shift-f7 for find-again.
> >> 
> >> But I'm sort of used to the shifted row not functioning properly in
> >> konsole...  It was that way a lot of the time in kde3 as well,
> >> unfortunately.
> >> 
> >> Maybe one of these days I'll backup both the konsole and mc configs
> >> so I won't lose the functionality I have, and try some serious
> >> experimenting to try to get it all working properly.  Either that, or
> >> see if there's some mc list/forum I can ask on.
> 
> Actually, correcting myself, if I've any hope of getting it right, or at
> least, any hope of understanding what I did to fix the problem if it
> appears again, it'll be hours, perhaps days, of research, followed by
> maybe an hour of tweaking and testing once I know what I'm doing.
> 
> I got thinking about it and the problem really is one of geometric
> complexity, an N-way issue with just the top level N=3, with multiple
> settings for parts of that, and a more accurate lower level N could well
> be into the double-digits...
> 
> > If by chance, you find that magic twanger, please fwd the details,
> > then print a copy or 20 and wrap them around suitable LART sized
> > rocks to be lobbed in the general direction of whomever _thinks_ they
> > are in charge of such.  Gotta have target practice if one wants to
> > stay proficient...
> > 
> > ;-)
> 
> The base problem is that the Linux console and the X protocol use
> different key-mappings, so an X terminal application must do some form
> of remapping between the two, with some keys and functions generally
> reserved for X.  In particular, X's treatment of modifier keys is quite
> different, as is the way it handles keypad vs main keyboard numeric and
> math keys. But oh, were it that simple!
> 
> At the top level, konsole has the ability to reconfigure its mapping on
> the input tab of the profile config.  Similarly, mc has the ability to
> configure its mapping.  Meanwhile, I seem to remember reading somewhere
> that mc detects the $TERM variable (I'm keeping things at the simple
> user- level config, here, top level only) and adjusts accordingly. 
> TERM=linux <> TERM=xterm (the konsole default).
> 
> That's our three top level variables to play with.  But...
> 
> mc can be built on either slang or ncurses or both, each of which has
> its own terminal function detection and mapping.  AFAIK ncurses is the
> more popular these days, with a more current terminal mapping database,
> and if one is /lucky/, it'll be used in preference to slang if they're
> both compiled in and available.  So, one now has to have at least a
> basic understanding of how that stuff interacts.
> 
> Then there's bash (the readline library here), with its own keymapping.
> Oh, and bash/readline also has both emacs and vim commandline editing
> personalities, each with their own keybindings.  It's quite possible one
> could end up broken and the other not.
> 
> And X has its own configurable two-level keymapping.  Plus with i18n,
> there's multiple keylevels and keyboard layouts that could interfere.
> 
> And don't forget, if you customize say the konsole profile keymapping or
> X keymapping too far, it's likely to break something else.  For
> konsole, in theory it's possible to setup a separate profile for mc,
> but that's both inconvenient (oh, I was doing something else in this
> konsole tab, then decided to run mc for something, but it's not the mc
> profile so the keymapping's screwed!), and at least /some/ of the
> settings configured in the profile settings apply to konsole globally
> (I know as I have a dedicated profile for something else), *NOT* to the
> individual profile, REGARDLESS of where they're actually set!  I'm not
> sure if the keymapping settings are actually per-profile or not.
> 
> Then there's the various patches the distributions may throw in, to try
> and make things more "compatible", but very likely not succeeding except
> in the narrow context, while breaking the documented functionality to
> make it work some other way...  That's on /top/ of the normal
> slang/ncurses choices that apply at compile-time, mentioned above.
> 
> 
> So... are you beginning to understand why previous airborne LART
> deliveries haven't had a whole lot of effect?

I can see where N! might be N=20 or more.  Mind boggling.

> I just took a shower and
> was thinking about all the independent (and not-so-independent) factors
> in the equation.  (Why is the shower such an effective place to think?)
>  Then I got out, and sat down to post about them.  That way they'll
> stick in my head better for the day I might try to do something with
> this.
> 
> Anyway, I suspect I'll have to read up on at least ncurses terminal
> database documentation, to see how mc deals with that (I have
> USE=ncurses and USE=-slang, here, so shouldn't have to worry about the
> latter), and find something on the konsole choices as well, by mailing
> the devs and asking if I can't find anything suitable in the konsole
> docs, author blogs or commit logs.  (I can try reading sources too, but
> don't claim to be a C coder so would hope they're very well commented
> if I'm to get anything useful out of that!)  If I don't, it'll be
> simply shots in the dark, and with the geometric complexity of the
> issue, that's about as likely to work for me as playing the lotto.

And I just got excedrin headache #713,173,472 trying to follow that.  ;-)

-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
<http://tinyurl.com/ddg5bz>
<http://www.cantrip.org/gatto.html>
Sex, Drugs & Linux Rules
	-- MaDsen Wikholm, mwikholm at at8.abo.fi
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