From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Eli Zaretskii <eliz@gnu.org>
Cc: cyd@stupidchicken.com, raeburn@raeburn.org, sdl.web@gmail.com,
emacs-devel@gnu.org
Subject: Re: Should Emacs provide a uuid function?
Date: Mon, 09 May 2011 14:03:44 -0300 [thread overview]
Message-ID: <jwv62pjdd14.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <83liyfj2kv.fsf@gnu.org> (Eli Zaretskii's message of "Mon, 09 May 2011 18:50:08 +0300")
> I was particularly trying to avoid proliferating the ugliness of the
> kind we have in battery.el:
> (defcustom battery-status-function
> (cond ((and (eq system-type 'gnu/linux)
> (file-readable-p "/proc/apm"))
> 'battery-linux-proc-apm)
> ((and (eq system-type 'gnu/linux)
> (file-directory-p "/proc/acpi/battery"))
> 'battery-linux-proc-acpi)
> ((and (eq system-type 'gnu/linux)
> (file-directory-p "/sys/class/power_supply/")
> (directory-files "/sys/class/power_supply/" nil "BAT[0-9]$"))
> 'battery-linux-sysfs)
> ((and (eq system-type 'darwin)
> (condition-case nil
> (with-temp-buffer
> (and (eq (call-process "pmset" nil t nil "-g" "ps") 0)
> (> (buffer-size) 0)))
> (error nil)))
> 'battery-pmset)
> ((eq system-type 'windows-nt)
> 'w32-battery-status))
I don't mind this kind of dispatch table, personally.
> I think it would be much cleaner to have 5 different implementations
> in sysdep.c of the same primitive, than have the above followed by 4
> different Lisp functions plus one primitive.
I don't find the dispatch table worse than the sysdep.c
code, personally.
Stefan
next prev parent reply other threads:[~2011-05-09 17:03 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-15 4:59 Should Emacs provide a uuid function? Leo
2011-04-24 20:43 ` Chong Yidong
2011-04-25 3:37 ` Leo
2011-04-25 4:37 ` Stephen J. Turnbull
2011-04-25 7:21 ` Ken Raeburn
2011-04-25 8:45 ` Stephen J. Turnbull
2011-04-25 9:53 ` Eli Zaretskii
2011-04-25 10:33 ` Stephen J. Turnbull
2011-04-25 12:30 ` Eli Zaretskii
2011-04-28 15:11 ` Ken Raeburn
2011-04-29 3:47 ` Stephen J. Turnbull
2011-04-30 8:00 ` Ken Raeburn
2011-04-30 18:39 ` Stephen J. Turnbull
2011-04-30 22:22 ` Ken Raeburn
2011-05-01 9:06 ` Stephen J. Turnbull
2011-04-30 13:32 ` Richard Stallman
2011-04-30 13:39 ` Eli Zaretskii
2011-04-25 19:52 ` Chong Yidong
2011-04-28 15:11 ` Ken Raeburn
2011-05-09 6:29 ` Leo
2011-05-09 7:23 ` Eli Zaretskii
2011-05-09 10:51 ` Ted Zlatanov
2011-05-09 11:35 ` Eli Zaretskii
2011-05-09 11:36 ` Leo
2011-05-09 14:38 ` Stefan Monnier
2011-05-09 14:51 ` Eli Zaretskii
2011-05-09 15:41 ` Stefan Monnier
2011-05-09 15:50 ` Eli Zaretskii
2011-05-09 17:03 ` Stefan Monnier [this message]
2011-05-09 19:32 ` Eli Zaretskii
2011-05-09 15:09 ` Chong Yidong
2011-05-09 15:26 ` Eli Zaretskii
2011-05-09 15:27 ` Ted Zlatanov
2011-05-09 15:36 ` Eli Zaretskii
2011-05-09 15:42 ` Ted Zlatanov
2011-05-09 15:53 ` Lars Magne Ingebrigtsen
2011-05-09 15:51 ` Stefan Monnier
2011-05-09 15:59 ` Lars Magne Ingebrigtsen
2011-05-09 17:05 ` Stefan Monnier
2011-05-09 17:45 ` joakim
2011-05-09 17:50 ` Lars Magne Ingebrigtsen
2011-05-10 14:03 ` Jason Rumney
2011-05-30 17:22 ` Lars Magne Ingebrigtsen
-- strict thread matches above, loose matches on Subject: below --
2011-04-26 21:06 Ben Key
2011-04-26 21:16 Ben Key
2011-04-26 22:51 ` Chong Yidong
2011-04-27 3:43 ` Leo
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