Re: to do list.

----- Original Message -----
From: "Dave Pawson" <[email protected]>
To: <[email protected]>
Sent: January 12, 2004 14:31
Subject: [docbook2X] to do list.


> New to the list. Mainly questions I'm afraid.
>
> To do list says:
>
>     * Let the Texinfo XSLT stylesheet automatically work on any supported
> processor. It is difficult, since XSLT does not support the method of
> "conditional inclusion", which is what is used right now. Anyway using
> docbook2X on Java processors out-of-the-box is not such a sufficient
concern.
>
>
> I'm curious what the issues are.
>
> I can see the character encoding issues mentioned.
> I'm wondering if xslt 2.0 and its mappings might help there?

Probably. But of course that would require XSLT 2.0 processors.

The main reason pure XSLT does not work
is that in Texinfo "node names" have to be unique,
and to do automatic mapping from <title> -> node name
requires a hashtable.

Actually, the use of hashtables is carefully hidden in one small file of the
stylesheets from Texinfo.
It is possible even now to swap it out with either

(i) pure XSLT (but with no automatic node name mapping; this may introduce
bad Texinfo files)
(ii) a Java-based extension using the Hashtable class in Java

The part about "no conditional inclusion" refers to the fact that you cannot
swap in one source XSLT file
for another depending on whether the user is running a Java-based processor
or no extensions are available at all.
I mean: of course theoretically it is possible to use <xsl:fallback> or
something similar to achieve the same effect,
but it makes the source ugly, so I didn't do it.

>
> I'd appreciate some hint as the the extensions that have
> been added to Daniels xslt processor, and if they would
> be necessary in xslt 2.0.

Actually the said extensions were originally made for libxslt,
however it seems bit rot has occurred and people have some
problems with it. I would look into that, except for lack of time.

--
Steve Cheng
&#x912D;&#x541B;&#x535A;




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