Negative Character Group
A positive character group that is preceded by the caret (^) character. For all positive character groups P, ^P is a valid negative character group, and c(^P) contains all XML characters that are not in C(P).
Syntax
negCharGroup ::= '^' posCharGroup
See Also
XML Schema Regular Expressions | XML Schema Regular Expressions Reference Chart | Character Group | Data Type Facets | Positive Character Group