in reply to XML Strategy For Computer Algebra

My suggestion would be to extend   XML::Xalan, a Perl interface to Xalan-C++. This lets you apply a (potentially dynamically generated) XSL transformation to an XML document. Example from the docs:

use XML::Xalan; my $tr = new XML::Xalan::Transformer; # parse an XML string: my $parsed = $tr->parse_string(<<"XML"); <?xml version="1.0"?> <doc>Hello</doc> XML # compile a stylesheet string: my $compiled = $tr->compile_stylesheet_string(<<"XSLT"); <?xml version="1.0"?> <xsl:stylesheet xmlns:xsl="" version="1.0"> <xsl:template match="doc"> <out><xsl:value-of select="."/></out> </xsl:template> </xsl:stylesheet> XSLT my $res = $tr->transform_to_data($parsed, $compiled);

If anyone needs me I'll be in the Angry Dome.