From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Lord <lord@emf.net>
Subject: Re: not-quite-literal blocks
Date: Tue, 03 Apr 2012 19:11:29 -0700
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To: Eric Schulte <eric.schulte@gmx.com>
Cc: emacs-orgmode@gnu.org

Thanks Eric, that was helpful.

As you said, customizing org-babel-exp-code-template
was what I was looking for to name code blocks
the way I had in mind -- I have it wrapping them
in a custom div now.

To locally hack together links from within code
blocks, I found out I was able to do it in a few lines using
htmlize-after-hook.

-t




On Mon, 2012-04-02 at 20:26 -0400, Eric Schulte wrote:
> Thomas Lord <lord@emf.net> writes:
> 
> > I am trying to piece together a simple
> > literate programming system that takes
> > HTML as input and spews out source files.
> > The program that "tangles" code fragments
> > in the HTML into source text will be in XSLT.
> >
> > Org mode is almost but not quite perfect for
> > generating the HTML I'd like.  
> >
> > I'm writing  to ask if I'm overlooking features that
> > are close to what I want to do, or advice about
> > whether it makes sense to extend org this way
> > and, if so, what work is entailed.  (I'm aware
> > of the existing literate programming features
> > in org but they are pretty far from what I'm
> > looking for, I think.)
> >
> > Right now, I can write something like this:
> >
> >   #+BEGIN_SRC C
> >     printf ("hello world\n");
> >   #+END_SRC
> >
> > and, via HTML export, get:
> >
> >   <pre class="src src-C">printf("hello world\n");
> >   </pre>
> >
> > What I'd really like is the ability to do this:
> >
> >   #+BEGIN_SRC C name="Say goodnight, Gracey."
> >     printf ("Goodnight, Gracey\n"); 
> >   #+END_SRC 
> >   #+BEGIN_SRC C name="main routine" file="burns.c"
> >     #include <stdio.h>
> >     int main (int argc, char * argv[])
> >     {
> >       //{{say   goodnight, gracey}}
> >       return 0;
> >     } 
> >   #+END_SRC
> >
> > and get:
> >
> >    <i>Say goodnight, Gracey.</i>:
> >    <pre class="src src-C" id="say_goodnight_gracey">
> >      printf ("Goodnight Gracey\n");
> >    </pre>
> >
> >    <i>main routine</i>:
> >    <pre class="src src-C" id="main_routine" file="burns.c">
> >      #include <stdio.h>
> >      int main (int argc, char * argv[])
> >      {
> >        <a href="#say_goodnight_gracey"><i>//{say   goodnight,
> > gracey}}</i></a>
> >        return 0;
> >      }
> >    </pre>
> >
> 
> This behavior should be fairly easily implemented through customizing
> the `org-babel-exp-code-template' variable, you can put any arbitrary
> Org-mode text into this template including literal HTML.  See its
> documentation string for more information.
> 
> >
> >
> > You can probably see how if I could get those mangled
> > "id" attributes in there, along with the hyperlinks,
> > it's pretty easy to tangle the result to produce a 
> > source file like:
> >
> >     #include <stdio.h>
> >     int main (int argc, char * argv[])
> >     {
> >       printf ("Goodnight, Gracey\n");
> >       return 0;
> >     }
> >
> > Any suggestions on what I would need to do 
> > to get code blocks like this?   The precise details of
> > the particular HTML mark-up are a little bit 
> > flexible.
> >
> > Huge "bonus points" if I can specify arbitrary
> > attributes (not just "id" and "file") *and*
> > introduce spans with a specific "id" in code.
> > Like:
> >
> >    #+BEGIN_SRC C id="print something" params="thing rest"
> >      printf (/*{thing}*/, /*{rest}*/);
> >    #+END_SRC
> >
> > for 
> >     <pre ... id="print_something" params="thing rest">
> >       printf (<span ... name="thing">/*thing*/</span>, ...);
> >     </pre>
> >
> > and
> >
> >     #+BEGIN_SRC id="main routine" ...
> >     ...
> >     int main (int argc, char * argv[])
> >     {
> >       //{{print something}thing={"argc is %d\n"}rest={argc}}
> >       return 0;
> >     }
> >     #+END_SRC
> >
> > for the obvious HTML expansion, all to ultimately generate
> > (through the XSLT code):
> >
> >     ...
> >     int main (...)
> >     {
> >        printf ("argc is %d\n", argc);
> >        ...
> >     }
> >
> 
> If you're willing to hack ob-exp.el locally you could add specific
> header arguments to the `org-babel-exp-code-template' template.  I'm not
> clear on a good way to do this for *any* header argument which would be
> general enough to push up to the main Org-mode trunk.
> 
> Cheers,
> 
> >
> > Thanks,
> > -t
> >
> >
> >
>