I need to create a function "global-set-key-future", which does the same as "global-set-key", except that the new keybinding goes into effect in future sessions.
There are at least two ways to do this, neither of which I know how to do:
1) Define a function "global-set-key-future". First, have it execute global-set-key within it (how to run it in the 'foreground' and have it prompt the user for the key, etc?). Then, programmatically get the last command executed by the lisp interpreter as a string. Finally insert that into code snippet into .emacs. How do I retrieve the code that is being run by the interpreter? I know about the variable last-command, but that only describes the name of the last command executed; I also need its parameters, or rather the code-snippet that was run by the interpreter (since the command uses user prompts).
2) Define a function "global-set-key-future". Attempt to recreate the code-snippet by hand. This would require prompting for a key, and converting that into the vector of characters representing the desired key event. For example, the key sequence "control meta x control meta f" would have to be translated into "\C-x\C-f". What function does this translation?
3) Modify the source of global-set-key, so that whatever it does, it inserts its changes into .emacs.
Note that I am aware that it is possible to manually create these keybindings, but I am interested in creating them interactively like does global-set-key.