namespace conformance

Chris Maden crism at
Tue Jan 5 03:22:46 GMT 1999

[Simon St.Laurent]
> * All element types and attribute names contain either zero or one
>   colon.
> * No entity names, PI targets, or notation names contain any colons.
> I can understand the first part just fine.  But why bar colons from
> every other use of Name in the spec?

Future use.  The application of namespaces to entities isn't fully
understood right now, but if colons in entity names are declared
meaningless now, then any future attempt to attach meaning later will
be a disaster.  It's the same reason that colons in names (except
xml:lang and xml:space) were declared to be reserved for experimental
use in XML 1.0.

<!ENTITY crism PUBLIC "-//O'Reilly//NONSGML Christopher R. Maden//EN"
"<URL> <TEL>+1.617.499.7487
<USMAIL>90 Sherman Street, Cambridge, MA 02140 USA" NDATA SGML.Geek>

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