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* Pushing the `gnus-range-*' functions down into the C layer
@ 2010-09-09 15:16 Lars Magne Ingebrigtsen
  2010-09-09 19:01 ` Ted Zlatanov
                   ` (3 more replies)
  0 siblings, 4 replies; 48+ messages in thread
From: Lars Magne Ingebrigtsen @ 2010-09-09 15:16 UTC (permalink / raw)
  To: emacs-devel

Would anyone mind if I implemented the `gnus-range-*' functions in C for
Emacs 24?  Gnus spends significant time on group entry/exit doing range
handling/compressing/etc, and I think the functions are (slightly)
generally useful.

Gnus addresses articles by their number, so you have things like the
"marked" list of articles that looks like

(3 4 5 6 7 11 14 15 16 17 18)

(or something).  To save loading/saving time, these are stored in the
.newsrc.eld file as range structures, which look like this:

((3 . 7) 11 (14 . 18))

To handle this, Gnus has a set of functions for computing
intersections/differences/etc on the range structures.  However, Emacs
Lisp isn't really fast at doing this, so if you exit from a group that
needs lots (I mean *lots*) of range handling, you get an annoying wait
while it sits there computing.

So I'm proposing implementing a set of useful functions in C, like
`range-memq', `range-add', `range-intersection' and stuff.

Thoughts?

-- 
(domestic pets only, the antidote for overdose, milk.)
  larsi@gnus.org * Lars Magne Ingebrigtsen




^ permalink raw reply	[flat|nested] 48+ messages in thread

end of thread, other threads:[~2010-09-14 15:52 UTC | newest]

Thread overview: 48+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-09-09 15:16 Pushing the `gnus-range-*' functions down into the C layer Lars Magne Ingebrigtsen
2010-09-09 19:01 ` Ted Zlatanov
2010-09-09 21:58   ` Lars Magne Ingebrigtsen
2010-09-09 22:25     ` Ted Zlatanov
2010-09-10  3:24     ` Stephen J. Turnbull
2010-09-10 13:53       ` Ted Zlatanov
2010-09-10 14:01         ` Lars Magne Ingebrigtsen
2010-09-10 14:08           ` Leo
2010-09-10 14:15             ` Lars Magne Ingebrigtsen
2010-09-10 14:19               ` Wojciech Meyer
2010-09-11  9:44             ` Stefan Monnier
2010-09-10 14:18           ` Ted Zlatanov
2010-09-10 14:28             ` Lars Magne Ingebrigtsen
2010-09-10 14:38               ` bignums (was: Pushing the `gnus-range-*' functions down into the C layer) Ted Zlatanov
2010-09-10 15:16               ` Pushing the `gnus-range-*' functions down into the C layer Andreas Schwab
2010-09-10 15:22                 ` David Kastrup
2010-09-10 15:26                   ` Lars Magne Ingebrigtsen
2010-09-11  9:48                     ` Stefan Monnier
2010-09-11 11:57                       ` Lars Magne Ingebrigtsen
2010-09-11 15:36                         ` Stephen J. Turnbull
2010-09-11 15:51                           ` Lars Magne Ingebrigtsen
2010-09-11 16:15                             ` Wojciech Meyer
2010-09-12  9:57                               ` Stefan Monnier
2010-09-10 19:28             ` Tom Tromey
2010-09-14 15:52               ` Ted Zlatanov
2010-09-11  5:52           ` Stephen J. Turnbull
2010-09-13 11:45       ` Eli Zaretskii
2010-09-09 22:21 ` Wojciech Meyer
2010-09-09 23:48   ` Ted Zlatanov
2010-09-09 23:56     ` Wojciech Meyer
2010-09-10  0:07       ` Lars Magne Ingebrigtsen
2010-09-10  0:17         ` Wojciech Meyer
2010-09-10  8:06 ` Andy Wingo
2010-09-10 10:20   ` Wojciech Meyer
2010-09-10 10:43 ` Stefan Monnier
2010-09-10 12:35   ` Lars Magne Ingebrigtsen
2010-09-10 12:49     ` rfc2047-decode-string in C? Lars Magne Ingebrigtsen
2010-09-10 13:47       ` Stefan Monnier
2010-09-10 13:51         ` Lars Magne Ingebrigtsen
2010-09-11 16:10           ` Lars Magne Ingebrigtsen
2010-09-10 13:07     ` Pushing the `gnus-range-*' functions down into the C layer joakim
2010-09-10 13:22       ` Lars Magne Ingebrigtsen
2010-09-10 13:45     ` Stefan Monnier
2010-09-10 14:01       ` Ted Zlatanov
2010-09-10 14:09         ` Lars Magne Ingebrigtsen
2010-09-11  9:36         ` Stefan Monnier
2010-09-10 14:06       ` Lars Magne Ingebrigtsen
2010-09-11  3:18     ` Daniel Pittman

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