Or a more simple version for unqualified names (perhaps to start
with): http://www.w3.org/TR/REC-xml/#sec-starttags

I'm preparing some training materials for a group without much exposure to

XML. I started to write about what form a name (for an element, attribute, or
variable) can take. Specifically, what characters are not permitted. It was
easy at first, but then I realized I should find an authoritative source. I
googled, but came up empty. Either I asked for the wrong thing, or I couldn't
recognize the right thing when I saw it. Can someone point me to a resource?
Thanks.

--
Charles Knell
cknell@xxxxxxxxxx - email