From: Nick Dokos <nicholas.dokos@hp.com>
To: Ken Williams <Ken.Williams@windlogics.com>
Cc: Rafael <rvf0068@gmail.com>,
nicholas.dokos@hp.com,
"emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>
Subject: Re: Hang on incomplete input
Date: Thu, 01 Dec 2011 10:21:24 -0500 [thread overview]
Message-ID: <10546.1322752884@alphaville.dokosmarshall.org> (raw)
In-Reply-To: Message from Ken Williams <Ken.Williams@windlogics.com> of "Thu, 01 Dec 2011 09:04:35 CST." <21A5E1E970CD46459ECBE86D6CC4B28C52E23B99@spexch01.WindLogics.local>
Ken Williams <Ken.Williams@windlogics.com> wrote:
>
> Rafael wrote:
>
> > In Ubuntu 10.10, emacs 23.2 and recent org, I get an *Org-Babel Error
> > Output* buffer, saying:
> >
> > Error: unexpected '}' in:
> > "ddply(x,
> > }"
> > Execution halted
>
> I'm using:
>
> GNU Emacs 23.3 (from http://vgoulet.act.ulaval.ca/en/emacs/windows/)
> Windows 7
> org-mode 7.7
> ESS 5.14
>
> What version of ESS do you have? Maybe that's the difference?
>
FWIW, I got the same thing as Rafael:
Linux 2.6.35-28-generic #50-Ubuntu SMP Fri Mar 18 18:42:20 UTC 2011 x86_64 GNU/Linux
GNU Emacs 24.0.90.2 (x86_64-unknown-linux-gnu, GTK+ Version 2.22.0) of 2011-10-27
Org-mode version 7.7 (release_7.7.617.gb1f2)
Forgive my ignorance: how do I check the ESS version? And what does ESS have
to do with R? I thought this was an R code block, but as you can probably
tell, I'm an ignoRamus.
When I start R interactively, I get
,----
| R version 2.11.1 (2010-05-31)
| Copyright (C) 2010 The R Foundation for Statistical Computing
| ISBN 3-900051-07-0
`----
> Any suggestions for how to debug a hang like this? Is there a signal I can send it, to generate a stack trace (if signals are even possible in Windows, I'm not even sure)?
>
Probably the best thing to do is cut out the middleman: execute the code
snippet in the appropriate environment directly - no emacs, no org, no
babel - and see if you have the problem. There are differences of course
that babel tries to minimize but it can only simulate certain cases. E.g
when I enter the incomplete form in the interactive session, it keeps giving
me a secondary prompt attempting to convince me to do something sensible:
,----
|
| > dply(x,
| +
| +
| + )
| Error: could not find function "dply"
| >
`----
babel does not have that luxury.
If that does not bear fruit, you can M-x toggle-debug-on-quit, run the
code block and press C-g to get a backtrace. Rinse, repeat to see
whether you always stop at the same point. It's somewhat hit-or-miss but
it can be effective sometimes.
Nick
next prev parent reply other threads:[~2011-12-01 15:21 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-30 22:41 Hang on incomplete input Ken Williams
2011-11-30 23:12 ` Rafael
2011-12-01 15:04 ` Ken Williams
2011-12-01 15:21 ` Nick Dokos [this message]
2011-12-01 17:22 ` Ken Williams
2011-12-01 18:18 ` Nick Dokos
2011-12-01 19:03 ` Ken Williams
2011-12-01 19:41 ` Nick Dokos
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