2 - should transforms for a given stylesheet be thread clean,
3 or can a stylesheet be enriched with document specific
4 informations and cleaned up later ?
5 - seems that saving back XSLT stylesheet from a compiled form might
10 -> provide functions to circulate in the import tree of stylesheets
13 -> try to optimize for ID scan and tests.
16 -> add error checks on all returns
21 -> macros, config, verbosity ?
23 Support for disable-output-escaping="yes":
24 -> looks problematic, libxml has no support for anything like this,
25 and unless adding a new node type :-( or tweaking text node and
26 output routines this is gonna be messy ... must be handled at libxml
30 -> check the version stuff, design a separate module for error interfacing
31 and default handling, parsing vs. runtime, fatal / compat / warning,
32 and lack of optionnal features.
34 Support Attribute value templates:
35 -> starts to be urgent. Design it in flexible ways but try to optimize
36 to handle most of it at the stylesheet parse time ...