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From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
To: Grant Rettke <gcr@wisdomandwonder.com>
Cc: "emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>
Subject: Re: How to visit every source block and modify it's NAME property with org-element?
Date: Sun, 09 Aug 2015 10:12:27 +0200	[thread overview]
Message-ID: <87oaiganis.fsf@nicolasgoaziou.fr> (raw)
In-Reply-To: <CAAjq1mc=u=hTpNLA2TuMCuCt6OwhzCM2ipkSFQme4gD21LnC+Q@mail.gmail.com> (Grant Rettke's message of "Sat, 8 Aug 2015 22:06:13 -0500")

Hello,

Grant Rettke <gcr@wisdomandwonder.com> writes:

> Goal:
>
> 1) Visit every source block
> 2) If there is a NAME property
>    1) Then replace it's value with a UUID
> 3) If there is not an NAME property
>    1) Add an NAME property and give it a UUID.
>
> `org-uuid' [provides] the functionality to create a UUID. It seems like
> this could be re-used for this NAME property. Would that be a good idea?
> The code would be nearly the same (choose a UUID program, get a value,
> insert it).
>
> What is the best way to do it with `org-element'?

Probably something like this (untested)

  (let ((case-fold-search t))
    (while (re-search-forward "^[ \t]*#+BEGIN_SRC" nil t)
      (let ((element (org-element-at-point)))
        (when (eq (org-element-type element) 'src-block)
          (if (not (org-element-property :name element))
              (let ((i (org-get-indentation)))
                (beginning-of-line)
                (save-excursion (insert "#+NAME: whatever\n"))
                (indent-to i)
                (forward-line 2))
            (re-search-backward "^[ \t]*#\\+NAME: +\\(.*\\)" nil t)
            (replace-match "whatever" ni nil nil 1))))))

> This is very similar to a post I just made about headlines and the ID
> property but they are different enough to post separately.

Unlike to the previous post, using `org-element' is mandatory in order
to avoid false positive when matching a source block.


Regards,

-- 
Nicolas Goaziou

next prev parent reply	other threads:[~2015-08-09  8:10 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-09  3:06 How to visit every source block and modify it's NAME property with org-element? Grant Rettke
2015-08-09  8:12 ` Nicolas Goaziou [this message]
2015-08-10  1:28   ` Grant Rettke
2015-08-10 20:59     ` Grant Rettke

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