Re: SGML declaration for XML

Chris Maden (crism@ora.com)
Wed, 6 May 1998 14:01:08 -0400 (EDT)

[Stefan Mintert]
> which is the correct SGML declaration for XML?
>
> I found three:
>
> 1a) <!SGML -- SGML Declaration for XML --
> "ISO 8879:1986 (ENR)"
>
> 1b) <!SGML -- SGML Declaration for XML --
> "ISO 8879:1986 (WWW)"
>
>
> both in http://www.w3.org/TR/NOTE-sgml-xml-971215
> Comparison of SGML and XML
>
> 2) <!SGML -- SGML Declaration for XML --
> "ISO 8879:1986 (WWW)"
>
> in http://www.sgmlsource.com/8879rev/n1955.htm
> ISO 8879 TC2

XML is from the W3C. Trust the resources from there. The "SGML
Declaration for XML" in the corrigendum for SGML is a sample. It is
in no way authoritative with respect to XML.

> As far as I know (1b) is correct, since XML 1.0 reads:
>
> [5] Name ::= (Letter | '_' | ':') (NameChar)*
>
> which means, a Name may start (NAMESTRT) with a ':'

That's correct, in pre-namespace XML. The namespace specification
will impose additional constraints which a namespace-aware processor
would enforce.

-Chris

-- 
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