Re: Re: org-babel - utility to ease chopping src chunks into smaller org entries

From: Dan Davison <davison@stats.ox.ac.uk>
To: mail@christianmoe.com
Cc: Richard Riley <rileyrg@gmail.com>, emacs-orgmode@gnu.org
Subject: Re: Re: org-babel - utility to ease chopping src chunks into	smaller org entries
Date: Tue, 21 Sep 2010 15:50:11 +0100	[thread overview]
Message-ID: <87mxrb40d8.fsf@stats.ox.ac.uk> (raw)
In-Reply-To: <4C98C2A8.1080709@christianmoe.com> (Christian Moe's message of "Tue, 21 Sep 2010 16:35:20 +0200")

Christian -- thanks, I think your suggestion is better than mine.

Eric -- here's a small change that allows it to work before the first
        headline. (protected from patchwork I hope)

Dan

--8<---------------cut here---------------start------------->8---
X  diff --git a/lisp/ob.el b/lisp/ob.el
X  index e3f9fc7..655a79d 100644
X  --- a/lisp/ob.el
X  +++ b/lisp/ob.el
X  @@ -1146,7 +1146,8 @@ region is not active then the point is demarcated."
X                (goto-char place)
X                (let ((lang (nth 0 info))
X                      (indent (make-string (nth 6 info) ? ))
X  -                   (stars (concat (make-string (org-current-level) ?*) " ")))
X  +                   (stars
X  +		    (concat (make-string (or (org-current-level) 0) ?*) " ")))
X   	       (when (string-match "^[[:space:]]*$"
X   				   (buffer-substring (point-at-bol)
X   						     (point-at-eol)))
X  @@ -1161,7 +1162,7 @@ region is not active then the point is demarcated."
X         (let ((start (point))
X   	    (body (delete-and-extract-region
X   		   (if (region-active-p) (mark) (point)) (point)))
X  -	    (stars (concat (make-string (org-current-level) ?*) " ")))
X  +	    (stars (concat (make-string (or (org-current-level) 0) ?*) " ")))
X   	(insert (concat (if (looking-at "^") "" "\n")
X   			(if arg (concat stars "\n") "")
X   			"#+begin_src " (read-from-minibuffer "Lang: ") "\n"
X 
--8<---------------cut here---------------end--------------->8---

Christian Moe <mail@christianmoe.com> writes:

> Hi Eric,
>
> Great, thanks.
>
> Christian
>
> On 9/21/10 3:04 PM, Eric Schulte wrote:
>> Hi Christian,
>>
>> I agree generalizing this function over all block types would be very
>> useful.  When I find the time I will make this change.
>>
>> Thanks -- Eric
>>
>> Christian Moe<mail@christianmoe.com>  writes:
>>
>>> Hi,
>>>
>>> I'm late to this discussion, but just a lateral thought:
>>>
>>> Would you consider rewriting this as `org-demarcate-block' or similar,
>>> to operate on all #+begin_...end blocks, not just src?
>>>
>>> If generalized this function could be equally useful for non-src
>>> blocks as well. Example blocks come immediately to mind, but there are
>>> non-coding applications too.
>>>
>>> For instance, I store many notes with quotes from various texts,
>>> sometimes in fairly long =#+begin_quote= blocks, which I then need to
>>> split up when I want to write an extended discussion of a passage,
>>> quoting a few lines at a time.
>>>
>>> For those who use verse blocks (I all too seldom have the need...), it
>>> may be even more useful.
>>>
>>> For personal use, I already have a little org-insert-block utility
>>> function to insert/wrap [q]uote, [s]rc, e[x]ample, [v]erse or [o]ther
>>> blocks at a keystroke. This works for me since I use at least the
>>> first two more or less equally often. A generalized demarcate-block
>>> function would be a nice complement.
>>>
>>> Yours,
>>> CM
>>>
>>>
>>>
>>>
>>>>> I've just added this to the org-mode repo.
>>>>>
>>>>>> Not in the babel key map - in the org key map (I use it most in normal
>>>>>> non src org entries to mark a block of elisp as src for samples/examples).
>>>>>
>>>>> For now it still lives in the babel keymap behind (C-c C-v d) since it
>>>>> is fundamentally code-block related,
>>>>
>>>> For me, "fundamentally code-block related", in the absence of
>>>> execution-related functionality, points to org-src.el rather than
>>>> org-babel, so I suggest naming this function
>>>> org-src-demarcate-block. The babel keymap is still a good place for a
>>>> binding -- I think it's reasonable for the babel keymap to accomodate
>>>> pure code block stuff in addition to execution/tangling stuff.
>>>>
>>>> Dan
>>>>
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>>