Re: Cycling visibility of blocks

[Carsten Dominik <carsten.dominik@gmail.com>]

On May 25, 2009, at 10:40 PM, Sebastian Rose wrote:

> "Eric Schulte" <schulte.eric@gmail.com> writes:
>> I've applied a slightly changed version of your regexp, and this is  
>> now
>> working for all block types (the resulting file is attached).  Where
>> could this file be saved?  The contrib directory seems like  
>> overkill for
>> such a small piece of functionality maybe I should post it up  
>> somewhere
>> on worg?
>
>
> Hmm - why don't you juste start a `Snippets' section? I don't mind  
> Worg
> to grow.
> Didn't you see http://wiki.github.com/SebastianRose/org-search.php?  
> Not
> doing very much yet, but it's under way :)
>
>
> Another good place would be inside Org-mode's core IMHO.

I would be happy to integrate this into the core.  Eric, you agree?

- Carsten

>
>
>   Sebastian
>
>
>> ;;; org-block-hide.el --- hide blocks in org-mode files
>>
>> (defvar org-block-hide-src-block-regexp
>>  "#\\+begin_\\([^ ]+\\) ?\\([ \t]+\\([^\n]+\\)\\)?\n\\([^\000]+?\\)# 
>> \\+end_\\1")
>>
>> (defun org-block-hide-src-block-cycle-maybe ()
>>  (let ((case-fold-search t))
>>    (if (save-excursion
>>          (beginning-of-line 1)
>>          (looking-at org-block-hide-src-block-regexp))
>>        (progn (call-interactively 'org-block-hide-src-block-cycle)
>>               t) ;; to signal that we took action
>>      nil))) ;; to signal that we did not
>>
>> (defun org-block-hide-src-block-cycle ()
>>  "Cycle the visibility of the current block"
>>  (interactive)
>>  ;; should really do this once in an (org-mode hook)
>>  (add-to-invisibility-spec '(org-block-hide . t))
>>  (message "trying out source block")
>>  (save-excursion
>>    (beginning-of-line)
>>    (if (re-search-forward org-block-hide-src-block-regexp nil t)
>>        (let ((start (- (match-beginning 4) 1)) ;; beginning of body
>>              (end (match-end 0))) ;; end of entire body
>>          (if (memq t (mapcar (lambda (overlay)
>>                                (eq (overlay-get overlay 'invisible)  
>> 'org-block-hide))
>>                              (overlays-at start)))
>>              (remove-overlays start end 'invisible 'org-block-hide)
>>            (overlay-put (make-overlay start end) 'invisible 'org- 
>> block-hide)))
>>      (error "not looking at a source block"))))
>>
>> ;; org-tab-after-check-for-cycling-hook
>> (add-hook 'org-tab-first-hook 'org-block-hide-src-block-cycle-maybe)
>>
>> ;;; org-block-hide.el ends here
>
> -- 
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