Too much latitude in Nmtoken characters?

• Messages sorted by: [ date ][ thread ][ subject ][ author ]
• Previous message: Eric Baatz - Sun Microsystems Labs BOS: "#x3000 inconsistency in June XML Syntax spec?"

[7] Nmtoken ::= (NameChar)+

Because

[4] NameChar ::= Letter | Digit | MiscName
[3] MiscName ::= '.' | '-' | '_' | ':' | CombiningChar | Ignorable | Extender
[87] Ignorable ::= a whole bunch of characters like "zero width non-joiner",
"right-to-left mark", and "zero width no-break space"

This seems to allow Nmtokens that aren't visible to the human eye,
for example, consisting of a single zero width non-joiner.

My limited understanding of SGML suggests that a Nmtoken is more like
a Name rather than a superset of it. For that matter, is "9" a sensible
Nmtoken?

• Previous message: Eric Baatz - Sun Microsystems Labs BOS: "#x3000 inconsistency in June XML Syntax spec?"