Comments on xml:id CR

I have three tiny suggestions for modifying the xml:id spec:

1. Change the third bullet sentence in sec. 1 from

"each element has at most a single unique identifier"

to

"each element has at most one single unique identifier"

for clearity.  Note that the term "one single" is already used in the 
second last paragraph of sec. 4.

2. Aproximately in the middle of sec 4 the expressions "does not satisfy 
the constraints" and "does not satisfy the enumerated constraints" 
appear.  The adjective "enumerated" is somewhat confusing, because it 
refers in both cases to the same set of constraints.  The term may also 
lead to confusion due to its terminological closeness to the "enumerated 
type constraints" of the XML spec. sec. 3.3.1.

3. The next paragraph on updating the "reference" infoset property should 
IMHO be amented by a note which warns the reader that -- according to the 
infoset spec -- for xml:id attributes the "references" property has no 
value when the attribute is syntactically incorrect or when it is not 
unique in the document.

Dieter Köhler