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Re: How to bind the same function to different keys with different behav


From: tomas
Subject: Re: How to bind the same function to different keys with different behaviours?
Date: Wed, 13 Jan 2016 13:53:34 +0100
User-agent: Mutt/1.5.21 (2010-09-15)

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On Wed, Jan 13, 2016 at 04:55:40AM -0800, address@hidden wrote:
> In the basic modemap, the ascii keys are bound to `self-insert-command'.
> As it is not an emacs-lisp function, I cannot "copy" its code.
> 
> I want to bind the keys [A-Z] to `my-self-insert-command' with something like:
> (for key from ?A to ?Z do
>   (bind-key my-mode-map key 'my-self-insert-command))
> 
> This function kind of inserts the current key pressed under some conditions.
> 
> So far, I don't know how to get acces to the current key pressed from within 
> `my-self-insert-command'.
> 
> Is this possible?
> 
> 
> If it is not possible, I'll do something like:
> 
> (for key from ?A to ?Z do
>   (bind-key my-mode-map key (lambda () (my-self-insert-command key))))

self-insert-command can do it -- so can you, then :-)

To find out (it helps to have the Emacs sources around, you do `C-h f'
self-insert-command, and Emacs tells you:

  "self-insert-command is an interactive built-in function in `C source
   code'.

   It is bound to many ordinary text characters.
   [...]"

The `C source code' above is a link, and if you have the Emacs sources
around, it'll take you to the relevant C function. There you see that
it references some variable `last_command_event'.

Lo and behold, Elisp has a corresponding variable `last-command-event'
where you can look up what triggered you `my-self-insert-command'

Hope this gives you a pointer to play with.

Regards
- -- t
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