Re: [O] R code block produces only partial output

[Charles C. Berry]

On Tue, 5 Aug 2014, John Hendy wrote:

> On Tue, Aug 5, 2014 at 2:02 PM, Eric Schulte <address@hidden> wrote:
> > Charles Berry <address@hidden> 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