Re: cc-mode fontification feels random

[martin rudalics]

> I benchmarked the effects of this
> in large files according to specific instructions by Eli who was also
> concerned about the performance hit and found no evidence of any kind of
> punishment.

Why on earth should file size have any impact on the performance of this
option?  It introduces a constant overhead that affects every single
character a user types.  You simply delay unfontifying the remaining
part of a buffer until editing leaves the current line.

>> And it should be documented somewhere.
>
> See C-h v jit-lock-antiblink-grace.

It should be documented in at least one manual.

> If it's a performance-only optimization with non-zero functional
> detriment it should be off by default.

It is undocumented practice to steadily undermine the role of
`open-paren-in-column-0-is-defun-start' in all modes with
`beginning-of-defun' the only place left where it currently has any
impact.  For some reason, people are afraid though of setting it off by
default (or declaring it obsolete).

martin