Naming Rules

John Cowan cowan at
Mon Jul 27 20:59:23 BST 1998

Portillo, Christina wrote:
> I need some clarification on the differences in the naming rules defined
> in the XML SGML Declaration and the Naming Rules defined in XML Part 1
> Names and Tokens.

It's important to understand that the SGML declaration for XML
is not normative.  In case of conflict, the XML specification rules.
> My understanding of the Name restricts the 1st character position to a
> letter or a underscore or colon which is in sync with the SGML
> Declaration. But the NameChar allows underscores and colons in the
> remaining character positions which is at variance with the naming rules
> defined by the SGML Declaration.

While I am not an SGML mavin, it seems clear that everything declared
as a NAMESTRT character is also valid as a NAMECHAR character.
The characters explicitly listed in NAMECHAR are the non-ASCII digits,
combining marks, and modifier letters, plus the FULL STOP and HYPHEN-MINUS.

John Cowan		cowan at
	You tollerday donsk?  N.  You tolkatiff scowegian?  Nn.
	You spigotty anglease?  Nnn.  You phonio saxo?  Nnnn.
		Clear all so!  'Tis a Jute.... (Finnegans Wake 16.5)

xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev at
Archived as:
To (un)subscribe, mailto:majordomo at the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo at the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa at

More information about the Xml-dev mailing list