HTML versions of the HDL proposal

Jon Bosak (Jon_Bosak@Novell.COM)
Thu, 22 Dec 94 18:39:08 EST

I have been away from email access for the last month and have just
received your message below. Please let me know whether the subject
of that message is still relevant. Thanks.


Jon Bosak, Novell Corporate Publishing Services
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The Library is a sphere whose consummate center is any hexagon, and
whose circumference is inaccessible. -- Jorge Luis Borges

Date: Thu, 24 Nov 94 19:46:54 -0700
From: Paul Burchard <>

Jon_Bosak@Novell.COM (Jon Bosak) writes:
> The best way to avoid multiple incompatible delivery
> languages and the loss of interoperability is to
> standardize on one system of markup capable of
> expressing the complete range of typographical effects
> needed for cross-platform online display and to convert
> to this delivery format from other languages optimized
> for authoring or domain-specific retrieval. This
> proposal leverages an existing standard, SDL, that is
> already available to serve as the basis for a common Web
> delivery language.

One question: is HDL sufficiently powerful to serve as a delivery
medium for mathematical and technical documents written in TeX?

In the current situation, such documents are typically served over
the Web as (1) PostScript [converted from DVI], (2) Hyper-TeX [really
hyper-DVI; requires modified DVI previewers], and/or (3) TeX source
[a big hassle!]. In the future, option (1) could migrate to Acrobat
documents, converted from Hyper-DVI to include hyperlinks.

Because TeX has dramatically raised the standards of typography for
technical manuscripts, any successful alternative delivery system
must have the ability to approach the same level of quality. I would
be curious whether you see HDL playing a role there.

Paul Burchard <>
``I'm still learning how to count backwards from infinity...''