Re: Attribute type NMTOKEN

Chris Maden (crism@ora.com)
Fri, 8 May 1998 16:25:27 -0400 (EDT)

[John E. Simpson]
> As I understand it (would appreciate being corrected if wrong),
> NMTOKEN essentially applies a constraint on the form of the
> attribute's value (i.e. value must be a valid name token -- start
> with either a letter or an underscore) without constraining the
> *specific* value. So yes, your "open-ended or... too big to list"
> assumption is correct, with the qualification that a type of NMTOKEN
> would not allow a value such as "1ABC," "//ENGLISH," or
> " WHITESPACE."

A possible misunderstanding here: a NMTOKEN itself can't contain
whitespace, but the attribute value specification, the quoted thing
after the equals sign, can: so
<my-element my-name-token=" WHITESPACE">
*is* a valid NMTOKEN attribute specification. The NMTOKEN in this
example is only "WHITESPACE", though; the leading (and trailing)
whitespace is trimmed.

-Chris

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