From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Charles C. Berry" <ccberry@ucsd.edu>
Subject: Re: R code block produces only partial output
Date: Tue, 5 Aug 2014 15:21:58 -0700
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To: John Hendy <jw.hendy@gmail.com>
Cc: emacs-orgmode <emacs-orgmode@gnu.org>, Eric Schulte <schulte.eric@gmail.com>

On Tue, 5 Aug 2014, John Hendy wrote:

> On Tue, Aug 5, 2014 at 2:02 PM, Eric Schulte <schulte.eric@gmail.com> wrote:
>> Charles Berry <ccberry@ucsd.edu> writes:
>>
>>> Eric Schulte <schulte.eric <at> gmail.com> writes:
>
> [snip]
>
>>> Eric,
>>>
>>> As noted by Andreas and John this is a problem for session output.
>>>
>>> org-babel-R-evaluate-session uses
>>>
>>>  (string-match "^\\([ ]*[>+\\.][ ]?\\)+\\([[0-9]+\\|[ ]\\)" line)
>>>
>>> to find the start of R output in the session.
>>>
>>> This does not match the `          0', but matches the `         .6'
>>> in the output you show above, so if that had been in a session, all the
>>> output up to and including the '.' before the '6' would be clipped
>>> by the following
>>>
>>>   (substring line (match-end 1))
>>>
>>>
>>> as Andreas output showed.
>>>
>>> Deleting the "\\." fixes Andreas case, but what are the circumstances
>>> requiring the  "\\." ?
>>>
>>
>> I don't know.
>
> I'm not sure either, but was curious if someone could translate the
> regex into "plain language." Maybe I could observe some typical
> outputs and chime in since I use R regularly? From noob-level regex
> stuff, it's looking for a new line followed by some number of spaces,
> a ">" and at least one period and numbers?
>


One of > or + or . and then some more.

You can get the 'English' at

 	http://www.myezapp.com/apps/dev/regexp/show.ws


But a better approach IMO is to open an R transcript, then M-x 
regex-builder and paste that regex into the window in place of the "". The 
matches should highlight.

Or use M-x occur (and edit the string to rid quotes and extra 
backslashes). But that will not show what you are missing.

Chuck