Re: address@hidden: Re: jit lock sit-for provokes redisplay provokes imenu]

[Stefan Monnier]

> How about this?  It adds jit-lock-pre-stealth-fontify-hook and
> jit-lock-post-stealth-fontify-hook, which are normal hooks run before
> and after each chunk of stealth fontification.  Then imenu can use
> this to avoid menu bar updates resulting from stealth fontification.

This only eliminates one particular source of unwanted updates.  I don't
think this code is worth the trouble.  At the very least, add it to
font-lock rather than jit-lock.
Better yet, introduce a macro `with-buffer-unmodified' like the one used in
jit-lock, and make it manage a `buffer-really-modified-tick', kind of like
the buffer-chars-modified-tick.  Then use it in jit-lock/font-lock
and friends.


        Stefan


PS: And make sure it also works when nested ;-)