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Re: [TeXmacs] Re: literate programming, again. Question about syntax highlighting.


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  • From: bytecolor <address@hidden>
  • To: address@hidden
  • Subject: Re: [TeXmacs] Re: literate programming, again. Question about syntax highlighting.
  • Date: Sun, 13 Sep 2009 02:42:40 -0700 (PDT)
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Hello Michael and David,

I had never heard of Literate Programming. Thanks for the tip.

I have a few of your requests implemented. I've attached noweb.ts. It's a
minimal style sheet for noweb documents. It contains two macros:

1. \noweb-fragment
2. \noweb-ref

The first wraps \cpp-fragment but inserts:
<<_>>=

@
into the box. The _ is where the cursor ends up. As you type an identifier
between <<>> a \label is automatically created. You can go back and change
the identifier and the label will change too. The <<, >>, =, and @ characters
are read-only.

The second just inserts <<_>>. Again, the _ is where the cursor ends up. This
automatically creates an \hlink as well. But, as you figured out, you can not
type markup in the fragment (at least I don't think you can). So, I created a
key sequence that calls \noweb-ref.

I've played around with it a little. It seems to work ok. The only downside
is it only works for C++. There are only a few languages that have
fragment-type markup. R is not one of them AFAIK. The C++ colorizing is
actually implemented in C++, not Scheme. Which is probably why you could not
find the relative code. Here is a link to the code in case you don't have a
local copy.

http://svn.savannah.gnu.org/viewvc/trunk/src/src/System/Language/?root=texmacs

I put noweb.ts in $HOME/.TeXmacs/styles/.

I added the arbitrary key sequence C-A-l to
$HOME/.TeXmacs/progs/my-init-texmacs.scm

(kbd-map
("C-A-l" (make 'noweb-ref)))

--
bytecolor (S. Edward Dolan)


--- On Sat, 9/12/09, Michael Lachmann <address@hidden> wrote:

> From: Michael Lachmann <address@hidden>
> Subject: [TeXmacs] Re: literate programming, again. Question about syntax
> highlighting.
> To: address@hidden
> Date: Saturday, September 12, 2009, 7:04 AM
> Some more about syntax highlighting.
>
> In the document style tmdoc there are formating styles for
> different
> programming languages, like scheme, shell, and c++. These
> show up as
> nice light-blue boxes, and have syntax highlighting.
>
>
> By copying and pasting from the documentation and using the
> tmdoc
> style, I managed to create the attached literate programing
> example.
> This is much nicer than what I had before! (Notice that in
> the
> previous example I manually formated strings to have
> certain colors,
> whereas here it is all done by teXmacs....)
> It is actually all I need, maybe apart from:
> - automatic indentation (it also exists in TeXmacs, when
> editing scm
> files... how do I harness the power?)
> - adding the "@" at the end of a code section
> automatically,
> - formating the "<<section>>" in a special
> style, and adding
> links/labels to them automatically.
>
> But even like this, it is much more than I had hoped!
>
> I have the following questions, though:
>
> 1. How do I insert these styles without copy/pasting them
> from the
> documentation?
> 2. Where are the programming languages defined? I searched
> all through
> the source code, but couldn't find where it is defined that
> "cout" and
> "cin" are keywords of c++.
>
> On an unrelated subject, it would be really nice if TeXmacs
> could
> format R code in the same way it formats C++ or shell code
> here. What
> should I do to add this to the R plugin?
>
> thanks,
> Michael
>


Attachment: noweb.ts
Description: application/linguist


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