unfortunate "feature interaction" of org-export and emacs-latex-auctex mode

unfortunate "feature interaction" of org-export and emacs-latex-auctex mode

[Martin Steffen]

Hi,

Perhaps it's not really a "fault" of org (nor of auctex), but both
things interact unfortunate. 

The reason is: when I export org to LaTeX, and I visit the latex file
afterwards, I want that auctex/emacs is instructed about some facts. Thus I
like to have some lines such as

%%% Local Variables: 
%%% mode: latex
%%% TeX-master: t
%%% End: 

at the end of the latex file. Org allows that, in that I add the
"LATEX-only" export at the end of the org-file

#+BEGIN_LATEX
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Local Variables: 
%%% mode: latex
%%% TeX-master: t
%%% End: 
#+END_LATEX


Doing that produces the desired lines at the end of the generated latex, and
if I visit the latex file, emacs/auctex is instructed according to my wishes.


Now the problem: If I refresh the /org/ file, emacs/org thinks that actually
the file is a latex file (due to the line "mode: latex") and switches from
org-mode to latex-mode.


It's a minor thing, obviously, but I just wonder if there's an easy workaround.

Martin
 

Re: unfortunate "feature interaction" of org-export and emacs-latex-auctex mode

[Marcin Borkowski]

On 2015-11-09, at 19:54, Martin Steffen <msteffen@ifi.uio.no> wrote:

> Hi,
>
> Perhaps it's not really a "fault" of org (nor of auctex), but both
> things interact unfortunate. 
>
> The reason is: when I export org to LaTeX, and I visit the latex file
> afterwards, I want that auctex/emacs is instructed about some facts. Thus I
> like to have some lines such as
>
> %%% Local Variables: 
> %%% mode: latex
> %%% TeX-master: t
> %%% End: 
>
> at the end of the latex file. Org allows that, in that I add the
> "LATEX-only" export at the end of the org-file
>
> #+BEGIN_LATEX
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> %%% Local Variables: 
> %%% mode: latex
> %%% TeX-master: t
> %%% End: 
> #+END_LATEX
>
>
> Doing that produces the desired lines at the end of the generated latex, and
> if I visit the latex file, emacs/auctex is instructed according to my wishes.
>
>
> Now the problem: If I refresh the /org/ file, emacs/org thinks that actually
> the file is a latex file (due to the line "mode: latex") and switches from
> org-mode to latex-mode.
>
>
> It's a minor thing, obviously, but I just wonder if there's an easy workaround.

Note: this is a terrible hack, so use it your own risk, only if there's
no sane alternative etc.

--8<---------------cut here---------------start------------->8---
#+BEGIN_COMMENT
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Local Variables: 
%%% mode: org
%%% End: 
#+END_COMMENT
#+BEGIN_LATEX
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Local Variables: 
%%% mode: latex
%%% TeX-master: t
%%% End: 
#+END_LATEX
--8<---------------cut here---------------end--------------->8---

> Martin

Hth,

-- 
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Faculty of Mathematics and Computer Science
Adam Mickiewicz University

Re: unfortunate "feature interaction" of org-export and emacs-latex-auctex mode

[Nick Dokos]

Marcin Borkowski <mbork@mbork.pl> writes:

> On 2015-11-09, at 19:54, Martin Steffen <msteffen@ifi.uio.no> wrote:
>
>> Hi,
>>
>> Perhaps it's not really a "fault" of org (nor of auctex), but both
>> things interact unfortunate. 
>>
>> The reason is: when I export org to LaTeX, and I visit the latex file
>> afterwards, I want that auctex/emacs is instructed about some facts. Thus I
>> like to have some lines such as
>>
>> %%% Local Variables: 
>> %%% mode: latex
>> %%% TeX-master: t
>> %%% End: 
>>
>> at the end of the latex file. Org allows that, in that I add the
>> "LATEX-only" export at the end of the org-file
>>
>> #+BEGIN_LATEX
>> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>> %%% Local Variables: 
>> %%% mode: latex
>> %%% TeX-master: t
>> %%% End: 
>> #+END_LATEX
>>
>>
>> Doing that produces the desired lines at the end of the generated latex, and
>> if I visit the latex file, emacs/auctex is instructed according to my wishes.
>>
>>
>> Now the problem: If I refresh the /org/ file, emacs/org thinks that actually
>> the file is a latex file (due to the line "mode: latex") and switches from
>> org-mode to latex-mode.
>>
>>
>> It's a minor thing, obviously, but I just wonder if there's an easy workaround.
>
> Note: this is a terrible hack, so use it your own risk, only if there's
> no sane alternative etc.
>
> #+BEGIN_COMMENT
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> %%% Local Variables: 
> %%% mode: org
> %%% End: 
> #+END_COMMENT
> #+BEGIN_LATEX
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> %%% Local Variables: 
> %%% mode: latex
> %%% TeX-master: t
> %%% End: 
> #+END_LATEX
>

Is there some rule about what happens when emacs sees two local variable
blocks in a file? It seems that the first one is enforced and the second
ignored: the above works in the given order of the two blocks, but not
if the order is reversed.

In any case, another solution along the same lines is as follows:
local variables are only recognized in the last "page" of the file so
just add a Control-L at the end of the org file:

--8<---------------cut here---------------start------------->8---
...
#+BEGIN_COMMENT
Insert a control-L here to prevent emacs from interpreting the local
variables block above - local variables blocks are recognized only on
the last "page" of the file.
\f
#+END_COMMENT
--8<---------------cut here---------------end--------------->8---

--
Nick

Re: unfortunate "feature interaction" of org-export and emacs-latex-auctex mode

[Marcin Borkowski]

On 2015-11-09, at 21:49, Nick Dokos <ndokos@gmail.com> wrote:

> Marcin Borkowski <mbork@mbork.pl> writes:
>
>> On 2015-11-09, at 19:54, Martin Steffen <msteffen@ifi.uio.no> wrote:
>>
>>> Hi,
>>>
>>> Perhaps it's not really a "fault" of org (nor of auctex), but both
>>> things interact unfortunate. 
>>>
>>> The reason is: when I export org to LaTeX, and I visit the latex file
>>> afterwards, I want that auctex/emacs is instructed about some facts. Thus I
>>> like to have some lines such as
>>>
>>> %%% Local Variables: 
>>> %%% mode: latex
>>> %%% TeX-master: t
>>> %%% End: 
>>>
>>> at the end of the latex file. Org allows that, in that I add the
>>> "LATEX-only" export at the end of the org-file
>>>
>>> #+BEGIN_LATEX
>>> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>>> %%% Local Variables: 
>>> %%% mode: latex
>>> %%% TeX-master: t
>>> %%% End: 
>>> #+END_LATEX
>>>
>>>
>>> Doing that produces the desired lines at the end of the generated latex, and
>>> if I visit the latex file, emacs/auctex is instructed according to my wishes.
>>>
>>>
>>> Now the problem: If I refresh the /org/ file, emacs/org thinks that actually
>>> the file is a latex file (due to the line "mode: latex") and switches from
>>> org-mode to latex-mode.
>>>
>>>
>>> It's a minor thing, obviously, but I just wonder if there's an easy workaround.
>>
>> Note: this is a terrible hack, so use it your own risk, only if there's
>> no sane alternative etc.
>>
>> #+BEGIN_COMMENT
>> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>> %%% Local Variables: 
>> %%% mode: org
>> %%% End: 
>> #+END_COMMENT
>> #+BEGIN_LATEX
>> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>> %%% Local Variables: 
>> %%% mode: latex
>> %%% TeX-master: t
>> %%% End: 
>> #+END_LATEX
>>
>
> Is there some rule about what happens when emacs sees two local variable
> blocks in a file? It seems that the first one is enforced and the second
> ignored: the above works in the given order of the two blocks, but not
> if the order is reversed.

I guess this is just implementation detail: the last 3000 characters of
the last page are scanned, and if a file local variables list is found,
it is applied, no matter what happens /after/ it.

> In any case, another solution along the same lines is as follows:
> local variables are only recognized in the last "page" of the file so
> just add a Control-L at the end of the org file:
>
> --8<---------------cut here---------------start------------->8---
> ...
> #+BEGIN_COMMENT
> Insert a control-L here to prevent emacs from interpreting the local
> variables block above - local variables blocks are recognized only on
> the last "page" of the file.
> \f
> #+END_COMMENT
> --8<---------------cut here---------------end--------------->8---

Still not pretty, but /much/ better than mine!

Best,

-- 
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Faculty of Mathematics and Computer Science
Adam Mickiewicz University

Re: unfortunate "feature interaction" of org-export and emacs-latex-auctex mode

[Martin Steffen]

>>>>> "Marcin" == Marcin Borkowski <mbork@mbork.pl> writes:


    Marcin> Note: this is a terrible hack, so use it your own risk, only
    Marcin> if there's no sane alternative etc.


Works for me, thanks (and for the suggestions of the others in the
thread. Martin


    Marcin> #+BEGIN_COMMENT
    Marcin> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    Marcin> %%% Local Variables: %%% mode: org %%% End:
    Marcin> #+END_COMMENT #+BEGIN_LATEX
    Marcin> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    Marcin> %%% Local Variables: %%% mode: latex %%% TeX-master: t %%%
    Marcin> End: #+END_LATEX

    >> Martin

    Marcin> Hth,

    Marcin> -- Marcin Borkowski
    Marcin> http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski Faculty of
    Marcin> Mathematics and Computer Science Adam Mickiewicz University

Re: unfortunate "feature interaction" of org-export and emacs-latex-auctex mode

[Rasmus]

Martin Steffen <msteffen@ifi.uio.no> writes:

> Hi,
>
> Perhaps it's not really a "fault" of org (nor of auctex), but both
> things interact unfortunate. 
>
> The reason is: when I export org to LaTeX, and I visit the latex file
> afterwards, I want that auctex/emacs is instructed about some facts. Thus I
> like to have some lines such as
>
> %%% Local Variables: 
> %%% mode: latex
> %%% TeX-master: t
> %%% End: 
>
> at the end of the latex file. Org allows that, in that I add the
> "LATEX-only" export at the end of the org-file

If it's only about setting the mode, you could use
org-latex-compiler-file-string (in the git version), and set tex-master in
a latex block...

Rasmus

-- 
Lasciate ogni speranza, voi che leggete questo.