Moved reference resolution out of language-specific files; changed
things so that we parse the header args list in org-babel.el, and
changed the argument list of the org-babel-execute:LANG functions
accordingly. In addition to hopefully resulting in easier maintenance,
this results in more streamlined org-babel-execute:LANG functions, and
hence less work to do when adding interpreters.
results-processing changes and state they are currently in. Here's the
comment:
You can see below the various fragments of results-processing
code that were present in the language-specific files. Out of
those fragments, I've moved the
org-babel-python-table-or-results and
org-babel-import-elisp-from-file functionality into the
org-babel-*-evaluate functions. I think those should only be
used in the :results value case, as in the 'output case we are
not concerned with creating elisp versions of results.
The rest of the functionality below, concerned with vectorising
or scalarising results is commented out, has not yet been
replaced, and may need to be reinstated in this function
This reverts commit a13cbf64b6.
I'm in favour of this change, but it seems that we need a more sophisticated way of combining plists before we can
change the default header args in this way. Otherwise, we get two entries for :results (one from the defaults and one
from the header args), whereas what we want is a single entry for :results with space-separated values.
When :results is 'value, the org-babel-LANG-evaluate functions are
responsible for returning an elisp representation of the *value* of
the block. This stage is maintained in the language-specific code
because different languages have different ways of doing it: python
and ruby use org-babel-LANG-table-or-string, whereas R and shell write
to file and then use org-babel-import-elisp-from-file. It could
however be put in the org-babel-execute:LANG function.
Bug fix: I was missing out org-babel-table-or-string with external
process evaluation (non-session).
Also, I have renamed org-babel-ruby-table-or-results to org-babel-ruby-table-or-string.
(the previous commit's message should have read org-babel-python-table-or-results...)
Results processing code has been moved out of language-specific
files (which all contained similar versions of essentially the same
code) and into the central org-babel.el. This commit maintains the
removed language-specific fragments commented out in org-babel.el. It
does not make an attempt to replace their functionality (the new
function org-babel-process-result currently does nothing).
Similarly, I intend to move the reference resolution code out of
language-specific files.
Move org-babel-python-table-or-results into the :results value branch
of org-babel-python-evaluate, and get rid of default case (result-type
must always be either output or value). I wonder if the org-babel-trim
s are necessary: they don't seem to be needed in the code for ruby.
Dan Davison
Eric Schulte