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Hi Pierre-Henri,

On Sun, Jun 27, 2021 at 09:21:24AM +0200, Pierre-Henri Jondot wrote:
> For matrices, the shortcuts C-arrows to add new lines and columns is 
> absolutely needed, but by default it conflicts with macos already defined 
> shortcuts ( it changes spaces). I tried emacs style keymapping in TeXmacs, 
> but it didn't help much as I lost the ability to enter a large centered 
> math equation. Indeed, option+$ on a french layout gives the euro € char.

Yes, the keyboard under MacOS is somewhat a pain.

I personally redefined many built-in shortcuts using
the joint modifier keys Control+Option+Command,
so that they never conflict with TeXmacs.

> It might be there is an easy way to adjust standard keyboard shortcuts, but 
> to be honest, I've not been able to find it yet. I had some hope with the 
> Tools->Keyboard->Edit shortcuts (something like that I suppose in English) 
> but I couldn't find how one uses that...

Yes, documentation is missing on this issue;
the integrated shortcut editor is fairly new.

Basically, you can attach Scheme commands to shortcuts,
like you did with kbd-map.  Also, when you are inside
an environment such as 'theorem', you can create
a shortcut for inserting that environment using

    Focus -> Preferences -> Create shortcut

In general, it still assumes that you know the appropriate
Scheme commands, which might not be extremely user-friendly
for newcomers.  Ideas for a simpler interface are welcome.

> I went the easy way for the time being, disabling macos shortcuts, and 
> staying with Mac OS style for keyboard shortcuts within TeXmacs.
> 
> Then I configured a few shortcuts by adding to my-init-texmacs.scm : 
> 
> (kbd-map
>    ("t t t" (make 'theorem))
>    ("f f f" (make 'folded-env))
>    ("p p p" (make 'proposition))
>    ("e e e" (make 'exercise))
>    ("s s s" (make 'solution*))
> )
> 
> It works... somewhat, but is most probably not the right way to do it...

Yes, this is perfectly reasonable.  The only minor thing I see is that,
with your scheme to repeat the same letter thrice, you may quickly
run out of letters.

> especially as regards the folded-env... It works like this : I hit three 
> times f, then enter, then I add my theorem or exercise, then I unfold and 
> add the solution or demonstration (for which I'll need another shortcut of 
> course, but I'm not there yet...)

Note that you may use the shortcut C-* (Emacs profile) to unfold.

> That was not what I had in mind. I wanted to use the capslock which I 
> redefined, with the help of Karabiner, to serve as a shift+control+option 
> modifier (which I then use in karabiner to have quicker access to \ [ ] { } 
> which are a bit of a pain on a macos keyboard...), so I would have liked 
> that hitting capslock-f (which translates to shift+control+command-f) to 
> begin a folded environment. Instead I hit thrice f for the time being, 
> which is quite usable, but I'd be curious to know what I would have needed 
> to write for it to work. I tried quite a few things, but I was not 
> successful.

If you manage to let TeXmacs receive the correct keyboard code,
then you may look at the file 'prefix-kbd.scm'
which defines default rewriting rules of this kind.

Best wishes, --Joris