From: Thorsten Jolitz <tjolitz@gmail.com>
To: emacs-orgmode@gnu.org
Subject: Re: (Maybe) enhance `org-element-src-block-interpreter'?
Date: Wed, 06 Aug 2014 16:36:01 +0200 [thread overview]
Message-ID: <87k36l7kj2.fsf@gmail.com> (raw)
In-Reply-To: 87oavx7lgy.fsf@gmail.com
Thorsten Jolitz <tjolitz@gmail.com> writes:
> Nicolas Goaziou <mail@nicolasgoaziou.fr> writes:
>
>> Thorsten Jolitz <tjolitz@gmail.com> writes:
>>
>>> I see, thanks. I'm still getting used to the 'org-element API', but it
>>> seems to be much easier than I thought: just use
>>> org-element-at-point' and
>>> `org-element-interpret-data' in most cases ...
>>
>> Correct.
>>
>> For completeness, if you're working at the local level (i.e. with
>> `org-element-at-point'), available accessors are
>>
>> - `org-element-type'
>> - `org-element-property'
>>
>> When you're working at the global level (i.e. with
>> `org-element-parse-buffer'), you get another accessor,
>> `org-element-contents', and some tools to modify the parse tree
>>
>> - `org-element-put-property'
>> - `org-element-adopt-element'
>> - `org-element-insert-before'
>> - `org-element-extract-element'
>> - `org-element-set-element'
>>
>> In both cases, `org-element-interpret-data' is the only way to turn data
>> back into Org syntax.
>
> That makes things much clearer, thanks.
>
> I definitely would have used `org-element-put-property' to modify a
> 'local' parse-tree too, but I can just as well directly use `plist-put'
> on the raw plist in its cdr - would that be the correct way?
I tried it out, works very nicely in this buffer:
* ORG SCRATCH
#+name: myPicoBlock
#+header: :var X=5
#+begin_src picolisp :results value raw :tangle no
(+ 3 X)
#+end_src
#+results:
8
Evaluating the following src-block with C-c C-c gives an error:
,----
| split-string: Wrong type argument: stringp, nil
`----
but it can be copied to the *scratch* buffer and evaluated there.
#+begin_src emacs-lisp :results
(defun tj/try-parser-api ()
(let (ptree)
(org-babel-map-src-blocks nil
(when (string= lang "picolisp")
(setq ptree
(delq nil
(list (org-element-at-point) ptree)))))
(org-element-put-property (car ptree) :value " (* 5 X)\n")
(message "%S" ptree)
(mapconcat
'org-element-interpret-data
ptree "\n")))
#+end_src
Then interpreting works as expected:
#+begin_src emacs-lisp :results raw
(tj/try-parser-api)
#+end_src
#+results:
#+NAME: myPicoBlock
#+HEADER: :var X=5
#+BEGIN_SRC picolisp :results value raw :tangle no
(* 5 X)
#+END_SRC
#+results: myPicoBlock
25
and I can actually use `org-element-put-property' on the car of the
local parse-tree (but need to add an "\n").
--
cheers,
Thorsten
next prev parent reply other threads:[~2014-08-06 14:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-05 16:17 (Maybe) enhance `org-element-src-block-interpreter'? Thorsten Jolitz
2014-08-06 3:39 ` Aaron Ecay
2014-08-06 8:19 ` Thorsten Jolitz
2014-08-06 11:34 ` Nicolas Goaziou
2014-08-06 12:03 ` Thorsten Jolitz
2014-08-06 12:32 ` Nicolas Goaziou
2014-08-06 13:18 ` Nicolas Goaziou
2014-08-08 8:19 ` Thorsten Jolitz
2014-08-08 8:45 ` Nicolas Goaziou
2014-08-06 14:15 ` Thorsten Jolitz
2014-08-06 14:36 ` Thorsten Jolitz [this message]
2014-08-07 12:14 ` Nicolas Goaziou
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