From: Harald Hanche-Olsen <hanche@math.ntnu.no>
To: cyd@stupidchicken.com
Cc: rms@gnu.org, emacs-devel@gnu.org
Subject: Re: Recognize mbox files?
Date: Mon, 09 Feb 2009 20:09:15 +0100 (CET) [thread overview]
Message-ID: <20090209.200915.88699865272196957.hanche@math.ntnu.no> (raw)
In-Reply-To: <878wofpj9h.fsf@cyd.mit.edu>
+ Chong Yidong <cyd@stupidchicken.com>:
> Richard M Stallman <rms@gnu.org> writes:
>
> > Is it reliable enough to recognize mbox files
> > that we could visit them automatically in Rmail mode?
>
> I don't think so. Mbox files are lines that begin with "From ",
> separated by arbitrary data. There's not enough information to
> autodetect them.
But there is more: There should be an RFC 822 header behind the "From
" line. Checking for complete RFC 822 compliance may be too much, but
at least, if you look for a bunch of lines matching '^[a-z][-a-z]*:',
each followed by zero or more lines beginning with white space, and
the whole bunch followed by an empty line, you're getting close. Bonus
points for detecting specific headers such as Subject: From: and
Message-ID:. (Beware that some mail programs like to stuff a bogus
message at the start of the mbox file in which they can store their
own data. This message might miss a Message-ID:, but otherwise it
should look normal.)
- Harald
next prev parent reply other threads:[~2009-02-09 19:09 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-09 5:31 Recognize mbox files? Richard M Stallman
2009-02-09 18:17 ` Chong Yidong
2009-02-09 19:09 ` Harald Hanche-Olsen [this message]
2009-02-09 21:26 ` Reiner Steib
2009-02-09 22:06 ` Eli Zaretskii
2009-02-09 22:35 ` Reiner Steib
2009-02-10 8:34 ` Eli Zaretskii
-- strict thread matches above, loose matches on Subject: below --
2009-02-09 18:38 Alfred M. Szmidt
2009-02-10 1:34 ` Stefan Monnier
2009-02-10 9:36 ` Eli Zaretskii
2009-02-10 20:02 ` Richard M Stallman
2009-02-11 0:34 ` Chetan Pandya
2009-02-11 20:58 ` Richard M Stallman
2009-02-11 4:51 ` Stephen J. Turnbull
2009-02-11 20:18 ` Eli Zaretskii
2009-02-12 1:59 ` Stefan Monnier
2009-02-12 4:09 ` Eli Zaretskii
2009-02-12 5:15 ` Stefan Monnier
2009-02-12 2:40 ` Stephen J. Turnbull
2009-02-11 20:59 ` Richard M Stallman
2009-02-10 7:36 Alfred M. Szmidt
2009-02-12 7:45 Alfred M. Szmidt
2009-02-12 8:16 Alfred M. Szmidt
2009-02-13 6:33 ` Richard M Stallman
2009-02-13 8:25 Alfred M. Szmidt
2009-02-14 21:25 Xavier Maillard
2009-02-14 21:25 Xavier Maillard
2009-02-14 22:51 ` Stefan Monnier
2009-02-16 15:40 ` Richard M Stallman
2009-02-14 21:52 Alfred M. Szmidt
2009-02-16 16:12 Alfred M. Szmidt
2009-02-17 12:13 ` Richard M Stallman
2009-02-17 13:10 Alfred M. Szmidt
2009-02-17 14:17 ` Stephen J. Turnbull
2009-02-18 12:10 ` Richard M Stallman
2009-02-17 15:27 Alfred M. Szmidt
2009-02-17 16:36 ` Stefan Monnier
2009-02-18 3:27 ` Stephen J. Turnbull
2009-02-18 3:39 ` Miles Bader
2009-02-18 4:18 ` Stephen J. Turnbull
2009-02-18 12:10 ` Richard M Stallman
2009-02-18 12:09 ` Richard M Stallman
2009-02-17 23:55 Xavier Maillard
2009-02-17 23:55 Xavier Maillard
2009-02-18 16:57 Alfred M. Szmidt
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