Re: [rudalics@gmx.at: Re: jit lock sit-for provokes redisplay provokes imenu]

[Stefan Monnier <monnier@iro.umontreal.ca>]

>     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.

> That seems a lot more trouble, and I don't see that it is needed.

I suspect it's actually going to be less trouble ;-)
Or at least no worse: the code would simply be moved from jit-lock to this
new macro, and then the macro can be used anywhere, e.g. in jit-lock (where
we can remove the corresponding macro), font-lock (idem), and probably many
other places where we use restore-buffer-modified-p.

It'd end up providing something similar to Martin's
buffer-chars-modified-tick, except implemented in Lisp rather than in C.


        Stefan