Assume we have the following element:

<xs:element name='date' type='xs:date' dfdl:calendarPattern='yyyy-MM-dd

hh:mm' />

So we have a element of type xs:date, but a calendarPattern that 

specifies date and time formatting symbols. What should happen in this

case? Two potential options that I see (there are probably others):

1) Throw some kind of error, signifying that calendarPattern contains 

formatting symbols not allowed for the type.

2) Truncate the parsed data to fit the type, so the data

   2013-01-22 11:59

becomes

   <date>2013-01-22</date>

This seems reasonable, however the spec mentions the following:

   When unparsing, and property calendarPattern contains a formatting

   symbol that requires a component of the date/time and the infoset

   value does not contain that component, it is a processing error.

So that means it is impossible to unparse when the calendar pattern is
a 

superset of the element type. Is this ok?

Thoughts?

- Steve

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