This directory contains four versions of the linuxdoc DTD.
The first, original.dtd, is the original untouched DTD from the
SGML-tools version 0.99.13 toolkit.  The second, freebsd-1.0.dtd, has
been slightly modified to (a) remove bogus shortref maps, and (b)
add a PART element.  The third, freebsd-1.1.dtd adds a manref element.
The fourth, xfree86, has changes by David Dawes to format XFree86[tm] 
documentations.
Using the supplied catalog file with James Clark's SP parser,
documents beginning like this:

  <!doctype linuxdoc system>

will automatically use the original DTD, while these:

  <!doctype linuxdoc public "-//FreeBSD//DTD linuxdoc//EN">
  <!doctype linuxdoc public "-//FreeBSD//DTD linuxdoc 1.0//EN">

will use the FreeBSD DTD, version 1.0 and this:

  <!doctype linuxdoc public "-//FreeBSD//DTD linuxdoc 1.1//EN">

will use the FreeBSD DTD, version 1.1. and this:

<!DOCTYPE linuxdoc PUBLIC "-//XFree86//DTD linuxdoc//EN">

will use the XFree86 DTD.

January 17, 1998
jfieber@FreeBSD.org
Modified April 3, 1998 matthieu@laas.fr
