CSVDocument is a CSV parser sending SAX events.

The current implementation is designed to be used 
as a result tree fragment with XT.

The content of the CSV document is returned as a 
table/tr/td tree (for similarity with XHTML) with 
an additional "pos" attribute allowing to easily define 
XPath request (such as "table/tr[@pos=2]/td[@pos=3]").

XSLT provides all the flexibility needed to transform
this basic schema into customed XML documents.

TODO :

 - encoding handling
 - customization of the separators