[xsd-users] xml_schema::expected_element exception during DOM-Tree stage

[Boris Kolpackov]

Hi,

Homer J S <js.homer at yahoo.com> writes:

> Hi, since the DOM-Tree stage reports error conditions exclusively by 
> throwing exceptions my program stops cold whenever the 
> xml_schema::expected_element exception is raised by the parser. 
> What could I do to get the parser to continue parsing even when 
> encountering this condition (I dont have much control over the 
> contents of the xml string to be parsed).

The C++/Tree generated code performs a subset of XML Schema validation
to make sure the resulting object model is consistent. Without such 
checks, for example, you could get an object model with a missing
required element value. Since there is no way to check whether such
a require element value was actually set, accessing this object model
will lead to an application crash.

The only way to work around this that I can see would be to "fix up"
the otherwise invalid XML in DOM (before passing it on to the DOM-Tree
stage) by making sure that all the required elements and attributes are 
present.

Boris