The GSoC-2012 DateTime functions currently operate on strings. The current Xalan/XPath/XObject types do not support types other than the basic XPath-1 data model.
Ref: src/xalanc/XPath/XObject.hpp As we consider XPath-2 and its data model and schema support, there needs to be some significant architecture refactoring. In the coming months, I expect the team to integrate the GSoC-2012 DateTime infrastructure as EXSLT/XPath functions for an upcoming release of Xalan-C/C++. We will still be limited to the older XPath-1 data model - using strings. The XPath-2 data model will need to have experimenting done in a branch. We will also look at what the Xerces-C has done in their XPath research. With few active people at this time, I don't expect the research to get very active. Apache Xalan Extension Functions Namespace - Discussion Issue The current namespace references the Apache XML project hierarchy. The Apache XML project has been retired, but the namespace for Apache Xalan Extension Functions is still being used. Is there a desire to deprecate the namespace hierarchy? or continue its existence. There are many additional XPath functions of significant utility that can be incorporated into the Xalan-C product. The namespace defines what our users put in their xmlns:xxx attributes for stylesheets when they access our extension functions. There is is a significant user investment in the Apache XML namespace hierarchy - so it may be wise to continue its existence. Sincerely, Steven J. Hathaway Xalan Documentation Project
