From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
To: Thorsten Jolitz <tjolitz@gmail.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: Programming with org-element-cache -> short introduction?
Date: Mon, 11 Aug 2014 15:16:52 +0200 [thread overview]
Message-ID: <87iolzp3nf.fsf@nicolasgoaziou.fr> (raw)
In-Reply-To: <87y4uxp3w2.fsf@gmail.com> (Thorsten Jolitz's message of "Sun, 10 Aug 2014 02:47:09 +0200")
Hello,
Thorsten Jolitz <tjolitz@gmail.com> writes:
> when programming with Org elements sometimes things seem to work and
> then something strange happens - what smells like a cache problem. I
> don't mean a cache bug, but a programmer (me) not taking the cache
> into account the right way.
It might also be a cache problem. Do not hesitate to report it.
> Is there a short introduction somewhere about the 'todos' and 'nogos' in
> programming with elements wrt to the org-element-cache?
The only "nogo" is to never modify (destructively) a value returned by
`org-element-at-point' or `org-element-context'. Consider their return
value as read-only, and possibly invalid as soon as you modify the
buffer.
These advices don't apply to `org-element-parse-buffer', which doesn't
use cache (if it did, it should copy cached elements beforehand anyway).
HTH,
--
Nicolas Goaziou
next prev parent reply other threads:[~2014-08-11 13:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-10 0:47 Programming with org-element-cache -> short introduction? Thorsten Jolitz
2014-08-11 13:16 ` Nicolas Goaziou [this message]
2014-08-11 13:50 ` Thorsten Jolitz
2014-08-11 14:22 ` Nicolas Goaziou
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