Re: [babel] Evaluating all source blocks in a document?

[Rainer M Krug <r.m.krug@gmail.com>]

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Hi Russel

On Wed, Jun 30, 2010 at 3:33 PM, Russell Adams <RLAdams@adamsinfoserv.com>wrote:

> On Wed, Jun 30, 2010 at 01:35:04PM +0200, Rainer M Krug wrote:
> > Hi
> >
> > I use Org-babel for literate programming in R, but the tangling takes
> quite
> > long. Therefore my question: as it is possible to evaluate a single code
> > block, is it possible to evaluate ALL code blocks i a document? that
> would
> > make debugging much easier.
>
> M-x org-babel-execute-buffer
>

Thanks - that  seems to be what I am looking for, but after trying it out, I
realized the following: for each block, e new R session is opened. This does
not work for literate programming, as different blocks belong to each other,
i.e. one block opens a function, the next one closes it. In addition, I want
to evaluate the results, i.e. created objects, in R - therefore the session
should stay open. So my guess: tangle and debug.

OTOH this may not make it easier to debug, the babel error window
> doesn't list line numbers or blocks where the error occurred.


True.


> Perhaps that should be a feature request to log what src block or org file
> line number the errors occurred in.
>

That would be nice.


> > Also: is it possible, to get some kind of automatic headings for the
> tangled
> > code blocks? That would make it easier to identify in which code block
> the
> > source code in the tangled file comes from.
>
> I haven't tried tangling yet, is there a good tutorial somewhere?
>

No idea - sorry. But it works really nice, If each block (in the tangled
file) would have a commented header specifying the line number of the
org-mode file where the block is located.

Thanks,

Rainer



>
> Thanks.
>
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