Re: Mysterious fontification/C++ context issue - Patch for beginning-of-defun-raw.

[David Kastrup]

Chong Yidong <address@hidden> writes:

>> xdisp.c, at ~750k, is an unusually large source file.  A 1.7 GHz machine
>> will become unusually old and slow during the lifetime of Emacs 22.
>
> There are plenty of people running Emacs on very old Unix boxes,
> especially in academic environments.

And a 750k source file will become unusually uncomplicated and small
during the lifetime of Emacs 22.

>> Yes.
>>
>> By "for now", you mean for Emacs 22.  If the changes are reverted "for
>> now", they'll stay reverted until the release of Emacs 23, sometime
>> around 2011.

If we assume that the code is to stay around until 2011, then we
really should not install a performance hog with at least quadratic
time behavior.

> If someone can come up with a non-slow way to handle this, it could
> go into emacs 22.2.  By the way, one of the reasons the Emacs
> release process takes so long is the addition of big problematic
> changes like this during pretest.

Very much so, yes.  This is not something that should ever have been
pushed in at pretest time.

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum