Re: Major modes using `widen' is a good, even essential, programming practice.

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

>> It's not slow on files of reasonable size. E.g. even if we take xdisp.c 
>> (the file I've seen referred to in complaints on CC Mode's speed),
>> 
>>    (benchmark 1 '(save-excursion (parse-partial-sexp (point-min) 
>> (point-max))))
>> 
>> reports 20-50 ms on my machine.
>
> It takes 0.5 sec here.

Takes 0.03s here on an --enable-checking=yes build.