{                Multi-line definition

    For large data definitions that spand several lines, the \ line
    continuation character may be insufficient. An alternative is the
    multi-line definition syntax:

    Example:    ENUM foo f1,f2, {
                     f3,f4
                     f5,f6
                     f7,f8 }

    Note:       The left curly brace that starts the multi-line definition
                must be the last token on the starting line. It does not
                have to precede the first element in the list. A right
                curly brace ends the syntax.

    Note:       You cannot include any directives such as IF or INCLUDE
                inside the multi-line definition.