🚀 go-pugleaf

Laurens Kils-H�tten wrote:

> I would like to add some extra font-locking features to psgml in order to
> make editing instances of docbook more intuitive. For instance display text
> enclosed in <title></title> bold and in an outstanding color, hyperlinks in
> blue etc.
>
> Has anyone worked on such a customization? Could you post/mail it or give
> me a link to resources?

I have made some experimental modifications for this. If you have the latest
version of PSGML (1.2.2) you can have a look in the file psgml-debug.el that
is included in the distribution. In psgml-debug I put some debugging code and
also some experimental code (candidates for additions to PSGML).

The interesting code is at the end of psgml-debug, starting with:

;;;; Adding appdata to element types
;;; Candidate for PI PSGML processing

Then you need to add some PIs to you DTD:

<?PSGML ELEMENT title face=bold >

Where bold must be a defined emacs face.

A note about the PI-syntax. After "PSGML ELEMENT" there should be a element
name (gi) followed by something almost like an attribute specification list.
An important difference is if the attribute value is not a literal, as in the
example above, it is parsed as a Lisp expression. In the example 'bold' is
parsed as a Lisp symbol and the space after the name is important because
Emacs Lisp allows '>' to be part of symbol names.

//Lennart