[xslt] Python bindings and xsldbg

[Keith Isdale <k_isdale tpg com au>]

Hi all,

Just wondering, is it expected/hoped that the python binding be able to be 
used to extend libxslt creating new XPath functions that will become 
"built-in" to libxslt. Or is it going to be more general that that? With 
xsldbg I've taken the view that only a few, very able people, will be 
extending  libxslt so there is no/little demand for debugging XPath and 
"built-in" functions.

If it is expected that adding fuctions via python is going to be commonly 
used then I'd like some discussion about how/if it is possible to debug the 
"libxslt user" python code. I see in the python library that there is a 
module called "pdb" which can be used to debug python scripts. Though I 
imagine that python will be invoked as a "C" function rather than via the 
interpretor. 

Some months ago I had the idea, a very complex one, to support debugging XXX 
language scripts via saving the libxml/libxslt environment and then envoking 
the language XXX debugger. This would work, I'm fairly sure, but would be 
awful to implement :-). The complex part is saving the environment so it can 
be reloaded by the debugger ( suppported by some extra libxslt/libxml 
API's"C"). I guess once this is done for one language then we could reuse the 
extra API's code for other languages. This extra API could/should be part of 
an OPTIONAL library(s) that would NOT be built as part of a normal 
libxml/libxslt distribution


Comments?


-- 
Keith Isdale

k_isdale@tpg.com.au | xsldbg stylesheet debugger  
http://xsldbg.sourceforge.net