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From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
To: Andreas Leha <andreas.leha@med.uni-goettingen.de>
Cc: emacs-orgmode@gnu.org
Subject: Re: How to inspect a document and check for the presence of source block language names and support
Date: Sat, 29 Nov 2014 11:38:36 +0100	[thread overview]
Message-ID: <87egsmnvf7.fsf@nicolasgoaziou.fr> (raw)
In-Reply-To: <olufvd23fv4.fsf@med.uni-goettingen.de> (Andreas Leha's message of "Sat, 29 Nov 2014 02:22:39 +0000")

Hello,

Andreas Leha <andreas.leha@med.uni-goettingen.de> writes:

> Grant Rettke <gcr@wisdomandwonder.com> writes:
>> Good evening,
>>
>> My goal is to obtain the following behavior in org mode for a document:
>> 1) Report an error if there is a source block without a language
>>    specified
>> 2) Report an error if there is a source block with a language specified
>>    that is *not* present in `org-babel-load-languages'
>>
>> I've thought about ways to do this and come up with:
>> 1) Visually inspect the document
>> 2) Use `org-element' to parse and process the document
>
> I'd be interested in 2) if you come up with something here :-)

  (defun my-src-block-check ()
    (interactive)
    (org-element-map (org-element-parse-buffer 'element) 'src-block
      (lambda (src-block)
        (let ((language (org-element-property :language src-block)))
          (cond ((null language)
                 (error "Missing language at position %d"
                        (org-element-property :post-affiliated src-block)))
                ((not (assoc-string language org-babel-load-languages))
                 (error "Unknown language at position %d"
                        (org-element-property :post-affiliated src-block)))))))
    (message "Source blocks checked in %s." (buffer-name (buffer-base-buffer))))


Regards,

-- 
Nicolas Goaziou

next prev parent reply	other threads:[~2014-11-29 10:37 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-29  2:08 How to inspect a document and check for the presence of source block language names and support Grant Rettke
2014-11-29  2:22 ` Andreas Leha
2014-11-29 10:38   ` Nicolas Goaziou [this message]
2014-11-29 14:42     ` Grant Rettke
2014-11-29 20:40       ` Andreas Leha
2015-02-03  9:55     ` Sebastien Vauban

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