Re: How to write a org babel hook, which can manupulate result

[Feng Shu <tumashu@gmail.com>]

Daimrod <daimrod@gmail.com> writes:

> Feng Shu <tumashu@gmail.com> writes:
>
>> Daimrod <daimrod@gmail.com> writes:
>>
>>> Feng Shu <tumashu@gmail.com> writes:
>>>
>>>> Hi:
>>> Hi Feng,
>>>
>>> Look at the :post header argument.
>>> (info "(org) post")
>>
>> How to use elisp in :post directly,
>
> I don't think you can.
>
> You have to use it this way (not tested):
> #+NAME: align-multi-table
> #+BEGIN_SRC emacs-lisp :var content="nil" :results raw
>   (align-multi-table content)
> #+END_SRC
> #+begin_src R :results output raw drawer :post align-multi-table(content=*this*)
>   <content>
> #+end_src

I prefer using a hook function to do this job, The below is my hook:

#+begin_src elisp
(add-hook 'org-babel-after-execute-hook 'eh-org-babel-align-tables)

(defun eh-org-babel-align-tables (&optional info)
  "Align all tables in the result of the current source"
  (interactive)
  (let ((location (org-babel-where-is-src-block-result nil info)))
    (when location
      (save-excursion
        (goto-char location)
	(when (looking-at (concat org-babel-result-regexp ".*$"))
	  (while (< (point) (progn (forward-line 1) (org-babel-result-end)))
	    (when (org-at-table-p)
	      (toggle-truncate-lines 1)
	      (org-table-align)
	      (goto-char (org-table-end)))
	    (forward-line)))))))
#+end_src


>
>> for example:
>>
>> #+begin_src R :results output raw drawer :post (align-multi-table)
>>   <content>
>> #+end_src
>> #+begin_comment
>> (defun align-multi-table (&optional content)
>>   (interactive)
>>   (let ((content (or content *this*)))
>>     (with-temp-buffer
>>       (insert content)
>>       (goto-char (point-min))
>>       (while (not (eobp))
>> 	(when (org-at-table-p)
>> 	  (org-table-align))
>> 	(forward-line))
>>       (buffer-string))))
>> #+end_comment
>>
>>>
>>>> I want to write a hook to menupulate org babel output,
>>>> The problem is: How can I get two points info: [pointA] and [pointB]
>>>> in my hook function?
>>>>
>>>> #+begin_src R :results output raw drawer
>>>> tbl <- data.frame(a=c(1,2,3),b=c(3,2,1))
>>>> print(ascii(tbl),type="org")
>>>> #+END_SRC
>>>>
>>>> #+RESULTS:
>>>> :RESULTS:
>>>> [pointA]
>>>> |   |    a |    b |
>>>> |---+------+------|
>>>> | 1 | 1.00 | 3.00 |
>>>> | 2 | 2.00 | 2.00 |
>>>> | 3 | 3.00 | 1.00 |
>>>> [pointB]
>>>> :END:

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