Re: Ctrl-[ ?

[Jean-Christophe Helary]

> On Jun 7, 2019, at 22:54, Noam Postavsky <npostavs@gmail.com> wrote:
> 
> On Fri, 7 Jun 2019 at 09:23, Jean-Christophe Helary
> <jean.christophe.helary@traduction-libre.org> wrote:
> 
>> (define-key input-decode-map "\C-[" [C-left-bracket])
> 
>> I still don't understand where that "left-bracket" comes from so if you 
>> could explain that would be extra nice.
> 
> It's just an arbitrary symbol choice, you can choose a different one
> if you like.
> 
> (define-key input-decode-map "\C-[" [C-open-square])
> (define-key global-map [C-open-square] 'forward-char)

Ok, but the key here (no pun intended) is to use input-decode-map before 
binding the thing, right ?

I just checked the manual and that's a bit arcade to say the least, but at 
least I know where the info is hidden now...

> So if I understand correctly, what happens is that Emacs gets Ctrl+[
> from the windowing system, translates that into the ASCII ESC
> character (aka 27, aka #x1B, aka ^[, aka \C-[). Then runs it through
> input-decode-map which translates it to C-open-square like we told it
> to. And then we can use C-open-square in keybindings as normal.

Thank you again for your explanations.

Jean-Christophe Helary
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