constraintdef

constraintdef — The definition of a constraint in an EBNF production.

Synopsis

constraintdef ::=

Additional Constraints

  • If this element is the root element, it must have a version attribute.

Description

A constraintdef contains a description of a constraint that cannot be expressed in the grammar (generally logical rather than syntactic constraints).

Processing expectations

Formatted as a displayed block.

Attributes

Common linking attributes.

any attribute

Any attribute in any other explicit namespace