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Re: [O] How to inspect a document and check for the presence of source b
From: |
Nicolas Goaziou |
Subject: |
Re: [O] 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 |
Hello,
Andreas Leha <address@hidden> writes:
> Grant Rettke <address@hidden> 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