From mboxrd@z Thu Jan  1 00:00:00 1970
From: Olaf Dietsche <olaf+list.orgmode@olafdietsche.de>
Subject: Re: : Search for missing :END:
Date: Tue, 22 Nov 2011 09:46:33 +0100
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In-Reply-To: <6557.1321911502@alphaville.americas.hpqcorp.net> (Nick Dokos's
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To: nicholas.dokos@hp.com
Cc: Markus Heller <hellerm2@gmail.com>, emacs-orgmode@gnu.org

Nick Dokos <nicholas.dokos@hp.com> writes:

[snip]
> But assuming that you are getting some error from org, you don't know
> where the problem is and you are trying to find it, it will be simpler
> to just use egrep:
>
>     grep -E -n ':PROPERTIES:|:END:' foo.org
>
> will filter out the relevant lines, so all you have to do is scan the
> output by eye and spot any irregularity (consecutive :PROPERTIES: or
> consecutive :END: lines). Even if you have hundreds of them, that's
> *easy* for humans to do.[fn:2]
>
> Or, if you prefer, you can write trivial validation programs to operate
> on the output, e.g.:
>
>         grep -E -n ':PROPERTIES:|:END:' foo.org | tee foo.out | grep PROP | wc -l
> 	grep END foo.out | wc -l
>
> (the counts 'd better be the same).

Since you might have other drawers as well (LOGBOOK, CLOCK), the counts
need not be the same.

Regards, Olaf

NB: At least GNU grep knows how to search for multiple regexps:
$ grep -e :PROPERTIES: -e :END: foo.org
So, no need for egrep here.