Re: Why not enable font lock by default?
On Friday 06 July 2007, Jason Spiro wrote:
2007/7/3, Mike Kupfer <mike.kupfer(a)sun.com>:
> The one concern that I have about enabling font lock by default is that
> it can be slow, i.e., when editing large files on relatively slow
> hardware.
If somebody feels it is too slow for them, they can disable it using
the drop-down menus or using M-x customize. But the vast majority of
people would benefit from it. :-)
My late .02€ to the discussion: MHO is that plain vanilla font-lock is too
slow to be enabled by default. But I wouldn't object at all to lazy-lock
enabling font-lock and itself automatically when installed, provided that
there's a sane way to do it without trumping the user's choices such as
preference of lazy-shot over lazy-lock, or preference to have no font-lock
and no lazy-lock and friends no matter if they're installed or not.
I'm actually trying something like this out in the latest Fedora devel XEmacs
packages with this in site-start.el:
(setq-default lazy-lock-minimum-size (* 2 1024))
...and this in default.el:
(require 'font-lock)
(when (fboundp 'turn-on-lazy-lock)
;; use lazy-lock by default if lazy-shot is not enabled
(remove-hook 'font-lock-mode-hook 'turn-on-lazy-lock)
(add-hook 'font-lock-mode-hook
(function
(lambda ()
(unless (and (boundp 'lazy-shot-mode) lazy-shot-mode)
(turn-on-lazy-lock))))
t))
Users who don't want font locking auto-enabled this way can set
inhibit-default-init to t.
Hm, actually I should probably make the "(require 'font-lock)" happen only
when turn-on-lazy-lock is bound to have the above accomplish what I mean.
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