Re: [PATCH] font-core: add font-lock-{enable, disable}-global-for functions

[Dmitry Gutov <dgutov@yandex.ru>]

On 01/05/2015 02:44 AM, Stefan Monnier wrote:

> Depends what you mean by "derived modes problem".  My version of the
> problem is when activating foo-mode in parent-mode and foo-mode fails to
> be activated in child-mode.

If you want derived modes to always be affected, you could just as well 
(aside from backward incompatibility) change 
`turn-on-font-lock-if-desired' to use `derived-mode-p'.

My version is more complicated: in some cases we might want derived 
modes to be affected, in others not. A graphical interface for picking 
the modes and modifiers might turn out to be more confusing than editing 
the Lisp form.

> That's no worse than the current font-lock-global-modes.

It makes to pretence of solving that problem, though. Often that's 
better than solving a problem halfway (no misconceptions for the user).