[Octave-patch-tracker] [patch #8534] For GUI undo, send Cntrl-U to Readline rather than callback command_editor.

[Dan Sebald]

Follow-up Comment #6, patch #8534 (project octave):

Yes, the global shortcuts is what I was looking for.  (I remember looking at
preferences, but honestly I think I clicked on a different application I had
open.)

The option is good, very nice actually with its ability to individually modify
the assigned shortcuts.

Guess I'm on the fence right now about copy/paste/undo shortcuts not being
deactivated along with others, simply because of the confusion it can cause. 
I see that Copy (i.e., Ctrl-C) will interrupt the terminal if nothing is
selected, but if something is selected then it will copy to the clipboard. 
Try the following: type 

>> Here is a partial line

and when nothing is highlighted and with "Disable global shortcuts" option
active select the Edit::Copy drop down menu.  The terminal window does an
interrupt.

Cntrl-V can't be passed to Readline (Cntrl-v means literal next character)
unless perhaps Qt's binding for Paste is changed in the option menu.

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