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Re: [O] How to inspect a document and check for the presence of source b
From: |
Andreas Leha |
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 20:40:49 +0000 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (darwin) |
Grant Rettke <address@hidden> writes:
> What a treat, sir, thank you for sharing that as if by some delightful
> magic, which surely it indeed is.
Many thanks also from my side!
>
> On Sat, Nov 29, 2014 at 4:38 AM, Nicolas Goaziou <address@hidden> wrote:
>> 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
>>