KERML11 — MULTILINE_NOTE Element Ambiguous Syntax

Clause 8.2.2.2 of the KerML specification defines the syntax for a
MULTILINE_NOTE element as follows:

---------------------------- Begin Quote -----------------------------
MULTILINE_NOTE =
'//' COMMENT_TEXT '/'
----------------------------- End Quote ------------------------------

The KerML specification does not contain any examples of multi-line note
elements, however.

The SysML specification does provide a single example of a multi-line
note element in the second code block of its clause 8.4.8.1, near the
top of page 410:

---------------------------- Begin Quote -----------------------------
//* Effective conjugated features:
out feature a subsets Base::things;
in feature b subsets Base::things;
inout feature c subsets Base::things;
feature d subsets Items::Item;
*//
----------------------------- End Quote ------------------------------

In contrast to the Concrete Syntax grammar given in the KerML
specification, which denotes '*/' (single slash) as the comment closer,
the example in the SysML specification uses '*//' (double slash) as the
comment closer.

It is thus ambiguous which of the two presented variants for closing
MULTILINE_NOTE elements is the correct one.