[xsd-users] versioned xsd files

[Boris Kolpackov]

Hi Ryan,

Ryan Lewis <me at ryanlewis.net> writes:

> I am wondering what the best way is to handle versioned xml files? Does XSD
> do this?

XML Schema itself doesn't provide any mechanisms for schema evolution. So
the commonly used approach is to generate mapping code for different
versions of your vocabulary into different C++ namespaces, detect which
version is being parsed (e.g., by doing XML-to-DOM parsing stage yourself
and examining the root element namespace or some such; see the 'multiroot'
example for details), and dispatching to the corresponding generated code.

Boris