kxsldbg 4:4.3.1-0ubuntu1 (amd64 binary) in ubuntu karmic

 KXSLDbg is a debugger for XSLT scripts. It includes a graphical user
 interface as well as a text-based debugger. KXSLDbg can be run as a
 standalone application or as an embedded KDE part.
 .
 XSLT is an XML language for defining transformations of XML files from
 XML to some other arbitrary format, such as XML, HTML, plain text, etc.,
 using standard XSLT stylesheets.
 .
 This package is part of KDE 4 web development module.