в dtd написано что name это NMTOKEN
а NMTOKEN это
So to summarize:
(1) The purpose of the NMTOKEN attribute type is to constrain the content
of attribute values by their *form* (rather than by their actual value, as
would be done with an enumeration). (I think this general statement was
true even though I muffed the examples!)
(2) The *form* of an attribute value declared as type NMTOKEN is such that
it may contain only valid NAME characters. The valid name characters are
"letters" (alphabetics as expressed in ASCII Latin, ISO Latin, and so on);
digits (also including ASCII and various international sets); limited
punctuation (full stop (.), hyphen (-), colon (
); and various combining
and extending characters required for internationalization. Internal
whitespace is not allowed in NMTOKEN-type attribute values. [Constraints in
item (2) established by productions #4, 7, and 84-89 in REC-xml-19900210.]
(3) Leading and trailing whitespace is trimmed/ignored before determining
whether the value is valid for a NMTOKEN-type attribute.
: Вниз