[ESS] `font-lock-pre-idle-hook': Error message any time I type in xemacs
diggsb at ohsu.edu
Tue Mar 23 18:11:56 CET 2010
On 3/22/2010 3:02 PM, Rodney Sparapani wrote:
> On 03/22/10 04:54 PM, Brian Diggs wrote:
>> Well, the -q option causes it to not load your init.el. I tried making a
>> minimal init.el with only
>> (require 'ess-site)
>> in it, as per
>> and got the same warnings (staring without the -q or -no-site-file
>> option). There must be something in your init.el file that gets ESS
>> fonts configured correctly. What do you have in your init.el that is ESS
> It's not coming from init.el. It is coming from ess-roxy.el. For
> example, if you edit ess-roxy.el to just contain (provide 'ess-roxy)
> then the warning goes away (but you will get a new error that is pretty
> harmless; boy is that progress or what?). Here is
> the function which shows where the error condition comes from...
> (defun font-lock-pre-idle-hook ()
> (condition-case font-lock-error
> (if (> (hash-table-count font-lock-pending-buffer-table) 0)
> (error (warn "Error caught in `font-lock-pre-idle-hook': %s"
> ; called when any modification is made to buffer text. This function
> ; remembers the changed ranges until the next redisplay, at which point
> ; the extents are merged and pruned, and the resulting ranges fontified.
> ; This function could easily be adapted to other after-change-functions.
> I have never even heard of this function before so something must be
> going wrong at a fairly early level in the fontlocking process.
I had seen that function, but it didn't help me understand where the
error was coming from. Or, at least, I could not figure out what in
font-lock-fontify-pending-extents was really throwing the error which
was caught and printed in font-lock-pre-idle-hook.
Your comment about ess-roxy lead me to my current workaround. I
(add-hook 'ess-mode-hook 'ess-roxy-mode)
in ess-site.el. Since I don't use Roxygen, I won't miss the
functionality of that minor mode, and the warning goes away. I don't
know if the problem is in ess-roxy.el or whether that is just tickling a
bug elsewhere, but I don't have any motivation to track this any further
a this time.
Thanks for your help, Rodney.
Senior Research Associate, Department of Surgery, Oregon Health &
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