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From: "Eric Schulte" <schulte.eric@gmail.com>
To: Seth Burleigh <wburle@gmail.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: [babel] Painless integration of source blocks with language
Date: Sun, 16 Jan 2011 08:31:03 -0700	[thread overview]
Message-ID: <87hbd8kgqw.fsf@gmail.com> (raw)
In-Reply-To: <AANLkTinUA+4h3OrfFSAfvkXXCppKLSveiGOSo1aLQJhF@mail.gmail.com> (Seth Burleigh's message of "Thu, 13 Jan 2011 17:44:19 -0600")

Seth Burleigh <wburle@gmail.com> writes:

>>As for how to trace back through noweb links, the best option seem to be
>>using the existing jump function to navigate from raw source to the
>>embedded block, keeping track of the point's offset form the beginning
>>of the block, then using `org-babel-expand-src-block' to expand the body
>>of the embedded code block marking noweb references with text properties
>>as they are inserted into the expanding body, and then using the point
>>offset to place the point into the appropriate noweb reference.  This
>>process could then recurse on the embedded noweb code block until it
>>ends up in a non-noweb portion of an expanded code block body.
>
> If you dont have any comment anchors in the text, how would you know which
>  noweb block you are in? If your org file and raw files are synched, then
> you could, but if they become unsynched, which is the way it should be
> (change raw code until done, then detangle to org), i dont exactly see how
> you can do it.
>

Yea, I think you're right.  I can't come up with any way of marking or
remembering the boundaries of noweb reference sections without inserting
comment wrappers around such sections.

I've just pushed up a new header argument combination ":comments noweb"
which will wrap all embedded noweb sections in link comments, as
demonstrated in the following example.  Hopefully this should be
sufficient for a complete mapping from a pure code file back to the
original org-mode file.

#+source: wrappable
#+begin_src emacs-lisp
  (setq x (+ 4 x))
#+end_src

#+begin_src emacs-lisp :comments noweb :noweb yes :tangle yes
  (let ((x 1))
    (message "x=%s" x)
    <<wrappable>>
    (message "x=%s" x))
#+end_src

which tangles out the following emacs-lisp
#+begin_src emacs-lisp
  ;; [[file:~/src/babel-dev/scraps.org::*wrap%20noweb%20references%20in%20comments][wrap-noweb-references-in-comments:2]]
  (let ((x 1))
    (message "x=%s" x)
    ;; [[file:~/src/babel-dev/scraps.org::*wrap%20noweb%20references%20in%20comments][wrappable]]
    (setq x (+ 4 x))
    ;; wrappable ends here
    (message "x=%s" x))
  ;; wrap-noweb-references-in-comments:2 ends here
#+end_src

Cheers -- Eric

  reply	other threads:[~2011-01-16 15:31 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-08 22:29 [babel] Painless integration of source blocks with language Seth Burleigh
2011-01-09  1:54 ` Eric Schulte
2011-01-09  9:40   ` Štěpán Němec
2011-01-09 17:59     ` Eric Schulte
2011-01-10  0:59       ` Seth Burleigh
2011-01-10  2:13         ` Eric Schulte
2011-01-10  3:49           ` Seth Burleigh
2011-01-10  4:01             ` Seth Burleigh
2011-01-11 17:00             ` Eric Schulte
2011-01-10 18:46   ` Eric S Fraga
2011-01-11 17:12     ` Eric Schulte
     [not found]       ` <AANLkTi=dNTn6HBeR4wV7039FDDyPGtmWbmL0biFwT-ta@mail.gmail.com>
2011-01-11 23:09         ` Seth Burleigh
2011-01-13  9:11       ` Eric S Fraga
2011-01-13 15:23         ` Seth Burleigh
2011-01-13 21:23           ` Eric Schulte
2011-01-13 23:44             ` Seth Burleigh
2011-01-16 15:31               ` Eric Schulte [this message]
2011-01-17  9:29                 ` Sébastien Vauban
2011-01-17 16:18                   ` Eric Schulte
2011-01-17 19:32                     ` Sébastien Vauban
2011-01-17 22:15                 ` Seth Burleigh
2011-01-17 22:44                   ` Sébastien Vauban
2011-01-18 18:11                     ` Seth Burleigh
2011-01-18 18:14                     ` Seth Burleigh
2011-01-18 18:38                       ` Seth Burleigh
2011-01-19  7:28                         ` Eric Schulte
2011-01-24 14:49                           ` Seth Burleigh
2011-01-18 19:53                       ` Bastien
2011-01-24 11:56         ` Dan Davison
2011-01-24 18:56           ` Eric S Fraga
2011-01-26 10:43           ` Sébastien Vauban

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