• From: John Cowan <cowan@m...>
• To: "Costello, Roger L." <costello@m...>
• Date: Tue, 17 May 2011 10:00:27 -0400

Costello, Roger L. scripsit:

> The XML specification lists the set of characters that may be used in
> XML documents.

[other true statements snipped]

> The XML specification says that XML documents can use the characters
> in the Nd category.

Neither XML 1.0 nor XML 1.1 says any such thing.  Both of them specify
a that almost all Unicode characters can be used in XML documents, the
exceptions being most control characters (in 1.0) and just NUL (in 1.1).

> The XML specification mandates version 2.0 of Unicode.

No.  Editions 1-4 of XML 1.0 allowed only a fixed list of XML characters
to be used *in names*, a list based on the general categories of Unicode
2.0.  The current 5th edition, as well as XML 1.1, allow almost all
characters in names with specified exclusions that are not based on
general categories.

-- 
There are three kinds of people in the world:   John Cowan
those who can count,                            cowan@c...
and those who can't.

• References:
  • Your XML documents may use different sets of characters, dependingon which implementer you select?
    • From: "Costello, Roger L." <costello@m...>