< into Hyper and Super modifiers.
> into Hyper and Super [[modifier key]]s.
What this document describes is how to add keys to the linux console, that linux knows nothing about
If you run the program dumpkeys, it will display your current keyboard configuration – probably in a format that you don’t understand.
I personally configured my keyboard to use the meta keys as meta. They look like <> (a diamond) so I changed my entire configuration a lot.
I still use A-Fn to switch between VTs so I wanted M-Fn to produce something I could use in emacs.
Linux does now know anything about a meta key, but it has eight control keys, so I used shiftl to represend meta.
So here is my configuration for F1:
keycode 59 = F1 F1 Console_13 F1 alt keycode 59 = Console_1 control alt keycode 59 = Console_1 shiftl keycode 59 = F41 # Emacs Meta F1
The first line says that key with code 65 (F1) is F1 (the following "F1 Console_13 F1" doesn’t matter, really). The next line says that A-F1 is VT 1 and the third says that C-A-F1 is VT 1. On the other hand the fourth line says that M-F1 is F41.
My meta keys return codes 124 and 126 (left and right), so I bound them to shiftl and used that as meta:
keycode 124 = ShiftL keycode 126 = ShiftL
Now, linux configures the Fn keys to be a string, and there is a default string for F1 - F20, as so:
string F1 = "\033[[A" : : string F20 = "\033[34~"
What I did was to create a string for M-Fn, and bind that to other Fn keys, and I started with F41, so I could just add 40 to the F number to get meta Fn:
string F41 = "\033[\033[[A" # Emacs Meta F1 string F42 = "\033[\033[[B" # Emacs Meta F2 string F43 = "\033[\033[[C" # Emacs Meta F3 string F44 = "\033[\033[[D" # Emacs Meta F4 string F45 = "\033[\033[[E" # Emacs Meta F5 string F46 = "\033[\033[17~" # Emacs Meta F6 string F47 = "\033[\033[18~" # Emacs Meta F7 string F48 = "\033[\033[19~" # Emacs Meta F8 string F49 = "\033[\033[20~" # Emacs Meta F9 string F50 = "\033[\033[21~" # Emacs Meta F10 string F51 = "\033[\033[23~" # Emacs Meta F11 string F52 = "\033[\033[24~" # Emacs Meta F12
These are strings I chose, so you don’t have to use the same strings, just be careful not to use strings that conflict with anything else.
Emacs can then be configured to treat these strings as a key or keybinding, such as M-Fn.
An obscure feature of Emacs can be used to get even more keys on the console – I use this to turn the windows keys on my keyboard into Hyper and Super modifier keys.
Here is the trick:
basically, if you hit C-h c followed by C-x@ha you will see that emacs knows that as a key prefix. In fact the above is hyper-a to emacs. similarly, you can prouce all the other modifiers as shown in the list below with C-x@ as the common prefix:
In fact the above is part of the raw keyboard translation and is meant for use in environments where the keyboard is incapable of producing the appropriate modifier bit.
So using all that has been said on this thread so far plus the above, you can get many more keys on your emacs keyboard!
I’m typing this on an 88 key hackers wireless keyboard, and in addition to the windows keys being hyper and super modifiers respectively, I also have the following:
(note that alt above is different and distinct from meta.