Re: "Generic" Source block language specification?

[Nick Dokos <nicholas.dokos@hp.com>]

Rainer M Krug <r.m.krug@gmail.com> wrote:

> On 23/11/12 16:02, Eric Schulte wrote:
> > Rainer M Krug <r.m.krug@gmail.com> writes:
> >
> >> On 23/11/12 00:17, Eric Schulte wrote:
> >>> Rainer M Krug <r.m.krug@gmail.com> writes:
> >>>
> >>>> Hi
> >>>>
> >>>> I have in a document a definition of a projection, which is essentially a text as
> >>>> follow:
> >>>>
> >>>> #+BEGIN_src +proj=aea +lat_1=-28.25 +lat_2=-29.75 +lat_0=29 +lon_0=30.75 +x_0=0 +y_0=0
> >>>> +datum=WGS84 +units=m +no_defs #+END_src
> >>>>
> >>>> Now this does obviously not export, as the source block language is missing. Is there a
> >>>> way that I can get the same formating of the source in the exportes output but without
> >>>> the syntax highlighting?
> >>>>
> >>>> BEGIN_EXAMPLE END_EXAMPLE
> >>>>
> >>>> is similar, but I would like the block to be formated as the SRC blocks.
> >>>>
> >>>
> >>> I bet "fundamental" would work, e.g.,
> >>
> >> Yes, it does - works perfectly. Is this documented?
> >>
> >
> > Yes.  Whatever language string is placed at the top of the source block will define the mode
> > used for export and in-block editing.  I believe that is documented.
> 
> OK - then I thought that I can use all languages *for formating* which are defined in the listings
> package in LaTeX, but it doesn't matter what I take: it always formats it in as a source block but
> obviously without syntax highlighting.
> 
> For editing: C-c ' only works ehen using "fundamental" - other non-existent languages are not
> accepted (obviously).
> 
> So I assume in org, there is support for "fundamental", but I could not find it in the
> documentation when I looked.
> 
> At the moment, my org info documentation seems to be not accessible (blank page when opening it).
> 

In order for this to work, emacs has to have a mode to handle it:
"fundamental" as a language works, because emacs has a mode called
fundamental-mode.

I append the relevant portion of the documentation (section 14.2,
Editing source code) I hope it comes in useful until you get your info
problems resolved, but note that it's also available online at

   http://orgmode.org/org.html#Editing-source-code

See org-src-lang-modes below for the details:

,----
| 
| 14.2 Editing source code
| ========================
| 
| Use `C-c '' to edit the current code block.  This brings up a language
| major-mode edit buffer containing the body of the code block.  Saving
| this buffer will write the new contents back to the Org buffer.  Use
| `C-c '' again to exit.
| 
|    The `org-src-mode' minor mode will be active in the edit buffer.  The
| following variables can be used to configure the behavior of the edit
| buffer.  See also the customization group `org-edit-structure' for
| further configuration options.
| 
| `org-src-lang-modes'
|      If an Emacs major-mode named `<lang>-mode' exists, where `<lang>'
|      is the language named in the header line of the code block, then
|      the edit buffer will be placed in that major-mode.  This variable
|      can be used to map arbitrary language names to existing major
|      modes.
| 
| `org-src-window-setup'
|      Controls the way Emacs windows are rearranged when the edit buffer
|      is created.
| 
| `org-src-preserve-indentation'
|      This variable is especially useful for tangling languages such as
|      Python, in which whitespace indentation in the output is critical.
| 
| `org-src-ask-before-returning-to-edit-buffer'
|      By default, Org will ask before returning to an open edit buffer.
|      Set this variable to nil to switch without asking.
| 
|    To turn on native code fontification in the _Org_ buffer, configure
| the variable `org-src-fontify-natively'.
| 
`----

HTH,
Nick