[Classpathx-xml] Experimental XSLT processor available

[Chris Burdess]

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There has been quite a bit of talk about the dearth of GPL Java XSLT  
processors, so this news should be welcome.

I have contributed a very rough and ready 100% JAXP XSLT processor to  
gnujaxp. It uses the XPath engine I contributed a few weeks ago, and  
the gnujaxp DOM implementation - sorry, other implementations of these  
APIs are not yet supported.

It's very early days yet and there are lots of TODOs in the code, but  
here is a brief rundown of what is available:

- - DOM, SAX, and stream sources
- - DOM, SAX, and stream results
- - xsl:include and xsl:import
- - literal result element as stylesheet
- - named templates
- - template modes
- - xsl:value-of, xsl:element, xsl:attribute
- - conditional processing
- - repetition
- - sorting

Features that are not yet available:

- - parameters and variables
- - xsl:with-param, xsl:copy, xsl:copy-of
- - keys
- - decimal formats
- - attribute sets
- - namespace aliases
- - text output method
- - disabling output escaping
- - whitespace preservation and stripping
- - XSLT XPath functions e.g. document()

There are probably also lots of bugs.

Please feel free to experiment with this processor and provide  
feedback: check out gnujaxp from CVS HEAD, and specify  
- -Djavax.xml.transform.TransformerFactory=gnu.xml.transform.TransformerFa 
ctoryImpl for your system properties to select this transformer  
implementation.

Also, volunteers are always welcome! If you want to help hack on this  
code, just mail me.
- -- 
Chris Burdess
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