Re: Making font-lock handle long lines better

[joakim]

Ryan B <address@hidden> writes:

> hi all! it seems like it's been a known issue for a while that font-lock is 
> slow on very long lines. i've tried lots of optimizations - 
> jit-lock/lazy-lock, font-lock-maximum-decoration, etc. - but even on modern 
> hardware, fontifying still hangs my emacs for 5-10s on
> long lines, e.g. 10k-20k characters, whenever they appear. 
>
> i'm thinking of adding an opt-in line length limit to font-lock-mode, after 
> which it would stop fontifying, evaluating regexps, etc. within each line. 
> i'd love to hear opinions on whether that makes sense, and whether you might 
> consider accepting it into trunk.

As a user, I would appreciate this feature. I dont know if its feasible
to implement it though.


>
> thanks in advance!
-- 
Joakim Verona
address@hidden