Hiding passords in authinfo (was: Automatic minor modes?)

[Stefan Monnier]

> When I open a file such as authinfo.json.gpg, the passwords are clearly
> visible to anyone that can see my screen.  I'd like to hide them
> visually.

I'd recommend to do this via jit-lock-register.

> Ideally in a way that reveals them when I move inside them,
> like `prettify-symbols-mode` does. Stefan suggested `reveal-mode` may be
> the right place to do this work, so I investigated a little.

No, I suggested reveal-mode might be the right thing to use to do that
"reveal" part.  reveal-mode doesn't deal with hiding, only with revealing.


        Stefan