Ginger Alliance Ltd have announced their open-source XSLT
processor, Sablotron.
Tested on both Windows NT and Linux, Sablotron is
licensed under the GNU General Public License. The authors
state their aims as being
to "develop [a] fast, compact and portable XSLT
processor".
Sablotron wraps James Clark's expat, and is
available as a shared library (.so or DLL) as well as in
source form. It does not yet have full W3C XSLT 1.0
support.
Online documentation
and an FAQ
is available, as is a mailing
list.
Sablotron forms a part of Ginger's Charlie,
a "generic XML data distribution system".
Update: Matt Sergeant has integrated the Sablotron
XSLT processor
into his Apache/XML delivery kit, version 0.55.