[xsl] Shell execution from xslt

["Rand McRanderson therandshow@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

Hi everyone,

Is anyone aware of any xslt library that supports calling shell 
commands? I thinking about writing my own but wanted to know what is out 
there currently.

What I am thinking about is something like:
<xsl:for-each select="shell('ls -1')/line">
...
</xsl:for-each>
where each line would be a line of shell output.

I am also curious if within the constraints of the xslt spec, is it 
possible to take streaming data from the return of an xpath function?

- Rand McRanderson