The W3C XML Schema Working Group has posted the third public working draft of XML Schema 1.1 Part 2: Datatypes.
- "0000" is a legal year and values with negative years map
onto the timeline such that
"the year 0000 is 1 B.C.E., the year –0001 is 2 B.C.E., etc."
- Distinction between identity and equality; for instance positive and negative zero would be equal but not identical. Think of the difference between
== and equals() in Java.
- New
yearMonthDuration and dayTimeDuration types
- A
precisionDecimal type that "retains information about the precision of the value. This type is aligned with the floating-point decimal types which will be part of the next edition of IEEE 754."
- An
anyAtomicType data type
- Negative and positive zero are distinct, in conformance with IEEE 754
