Bluetooth keyboard workaround

[Ezra]

Just posting this at the top level for those who have to work with the
bluetooth keyboard and are missing control key and arrow key
functionality.

There is somewhat of a workaround.

One thing the bluetooth keyboard *does* send are the ALT key
combinations. So, if you use GNU screen, what you can do to remap the
special characters ALT-foo sends to the equivalent control character C-
foo or any other special character by placing "bindkey" commands in
your .screenrc. e.g:

bindkey "x" stuff \003

Maps typing "x" to control-C. Obviously, you type the actual ALT-C
(*on your bluetooth keyboard*) inside the quotes when
editing .screenrc -- I can't make ALT characters show up in this edit
box so I have to use x :-)

You can get create mapping ALT-(h,j,k,l) to arrow keys etc, read the
screen man page and play around.

Ezra

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[Jeff Clithero]

Thank you Ezra! This will indeed be quite useful.

Jeff Clithero
Eris Technologies
360-390-4112
Helpdesk, click: https://help.ioltd.com

[Dean]

I hadn't noticed this behaviour before! Thanks for bringing it to my
attention. Unfortunately these characters are generated the same way
they are on a regular mac keyboard, which means that I can't retool
them without breaking international character set compatibility.

Deam

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[Jeff Clithero]

Again, thank you, thank you Ezra... I've made a .screenrc setup using
the screen 'bindkey' in my .screenrc. My terminal string is set to
'xterm'.

Below you'll find a cut from my working "~/.screenrc" and may be a
starting point others. I also found that (option/ALT Key)-(TAB-Key)
is already mapped to 'TAB' in and out of 'screen'.

################### cut from ~/.screenrc ###################
#F10===(alt-0)
bindkey º stuff \033[21~
#F5===(alt-5)
bindkey ∞ stuff \033[15~
#F7===(alt-7)
bindkey ¶ stuff \033[18~
#PageUp===(alt-O)
bindkey ø stuff \033[5~
#Up Arrow===(alt-K)
bindkey ˚ stuff \033[A
#Right Arrow===(alt-L)
bindkey ˙ stuff \033[D
#Down Arrow===(alt-J)
bindkey ∆ stuff \033[B
#Left Arrow===(alt-H)
bindkey ¬ stuff \033[C
#Control-D===(alt-D)
bindkey ∂ stuff \004
#Control-C===(alt-C)
bindkey ç stuff \003
#Control-W===(alt-W)
bindkey ∑ stuff \027
#Control-R===(alt-R)
bindkey ® stuff \022
#PF1===(alt-1)
bindkey ¡ stuff \033OP
#PF2===(alt-2)
bindkey ™ stuff \033OQ
#PF3===(alt-3)
bindkey £ stuff \033OR
#PF4===(alt-4)
bindkey ¢ stuff \033OS
#F6===(alt-6)
bindkey § stuff \033[17~
#F8===(alt-8)
bindkey • stuff \033[19~
#F9===(alt-9)
bindkey ª stuff \033[20~
#PD===(alt-M)
bindkey µ stuff \033[6~
#################### end of cut from ~/.screenrc ################

Obviously might only work with a standard english keyboard since it
doesn't use the double byte international characters. I was able to
enter the bindkey characters with a standard mac keyboard by holding
(option/ALT key) and the number or alpha substitute character, ie.
ALT-C == ç and I mapped it to CTRL-C using the 'stuff \003' syntax
listed above, I had to lookup PF1-PF4 and the F5-F10 keys.

By adding these keys I can now keep my hands almost entirely on the
keyboard which is practically perfect!

One additional trick, on my systems, both mac and linux versions of
screen, I had to put the keys in the order listed to get them to
'take', don't know why, but after trying them in sequential order,
some didn't work until I moved them to the top of the list.

Enjoy!


Jeff