Re: Wrapping section within LaTeX environment

[John Kitchin <jkitchin@andrew.cmu.edu>]

Cool. You might want to change your string match to :correction: so you
don't inadvertently wrap a section with the word correction in the body
though. That seems like a possibility here.

Xavier Garrido writes:

> Le 14/12/2015 02:39, John Kitchin a écrit :
>> could you provide a brief example of what you want to happen?
>>
>> i.e. are you looking for this:
>>
>> * some heading :correction:
>> one line of content
>>
>> to convert to this in LaTeX?
>>
>> \begin{correction}
>> one line of content
>> \end{correction}
>>
>
> Exactly. Actually when I read your mail I realize that
> =org-export-filter-headline-functions=  filter not only give access to
> the heading but to the whole content within the heading. So,
>
> #+BEGIN_SRC emacs-lisp
>    (defun cpp-correction-headline (contents backend info)
>      (when (and (org-export-derived-backend-p backend 'latex)
>                 (string-match "\\`.*correction.*\n" (downcase contents)))
>        (concat "\\begin{correction}" (replace-regexp-in-string
> "\\`.*correction.*\n" "" contents) "\\end{correction}"))
>      )
>    (add-to-list 'org-export-filter-headline-functions
> 'cpp-correction-headline)
> #+END_SRC
>
> is doing what I want. So thanks for the insights and sorry for the noise.
>
> Xavier
>
>
>>
>> Xavier Garrido writes:
>>
>>> Dear orgers,
>>>
>>> I would like to wrap a given org section between =\begin,\end= LaTeX
>>> environment. These sections are identified by a special tag :correction:
>>> and to initiate the =\begin= flag I have basically no problem by using
>>> the  org-export-filter-headline-function filter. The problem comes when
>>> I want to close the environment i.e. when another section starts. I have
>>> try this piece of code
>>>
>>> #+BEGIN_SRC emacs-lisp
>>>     (setq correction-flag nil)
>>>     (defun cpp-correction-headline (contents backend info)
>>>       (if (and (org-export-derived-backend-p backend 'latex)
>>>                  (string-match "\\`.*correction.*\n" (downcase contents)))
>>>           (progn
>>>             (setq correction-flag t)
>>>             (replace-match "\\\\begin{correction}" nil nil contents)
>>>             )
>>>         (when correction-flag
>>>           (setq correction-flag nil)
>>>           (concat "\\end{correction}" contents))
>>>         )
>>>       )
>>>     (add-to-list 'org-export-filter-headline-functions
>>> 'cpp-correction-headline)
>>> #+END_SRC
>>>
>>> but I get several =\end{correction}= in the produced LaTeX file.
>>> Actually this is much more a emacs-lisp related question since the
>>> boolean =correction-flag= seems not to work and I don't know why (of
>>> course I have very little knowledge in lisp). Can some emacs-lisp
>>> experts helps me understand why the above code just does not work.
>>>
>>> Thanks a lot,
>>> Xavier
>>
>> --
>> Professor John Kitchin
>> Doherty Hall A207F
>> Department of Chemical Engineering
>> Carnegie Mellon University
>> Pittsburgh, PA 15213
>> 412-268-7803
>> @johnkitchin
>> http://kitchingroup.cheme.cmu.edu
>>

--
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803
@johnkitchin
http://kitchingroup.cheme.cmu.edu