• To: 'xml-dev' <xml-dev@l...>
• Subject: Re: Declaring the XML namespace
• From: "Thomas B. Passin" <tpassin@c...>
• Date: Thu, 11 Jul 2002 08:47:11 -0400
• References: <000701c228c6$b7696ad0$6401a8c0@pcukmka><p04330101b9531b2fb678@[192.168.254.4]>

[Elliotte Rusty Harold]
>...
> According to the SAX JavaDoc,
>
<http://www.saxproject.org/apidoc/org/xml/sax/ContentHandler.html#startPrefi
xMapping(java.lang.String,%20java.lang.String)>
>
> There should never be start/endPrefixMapping events for the "xml"
> prefix, since it is predeclared and immutable.
>
> Thus Piccolo is wrong. You should report a bug to Piccolo's maintainer.
>

This conclusion is not clear to me.  If the "xml" prefix is by definition
bound to that one namespace, seems to me that it __should__ be reported
whether or not a namespace declaration exists for it in a document.  If the
prefix is used and there is no declaration, the namespace should be reported
anyway.  If an incorrect namespace were used, what would be the right error
behavior?  Report the right namespace and continue?

I do not know how most parsers handle it, though.  I remember hacking 4xslt
or 4xpath (I think it was) once because it insisted on having the namespace
supplied and generally it is not supplied  that in practice.

Cheers,

Tom P

• Follow-Ups:
  • Re: Declaring the XML namespace
    • From: Uche Ogbuji <uche.ogbuji@f...>
  • Re: Declaring the XML namespace
    • From: james anderson <james.anderson@s...>
  • Re: Declaring the XML namespace
    • From: Elliotte Rusty Harold <elharo@m...>

• References:
  • Declaring the XML namespace
    • From: "Michael Kay" <michael.h.kay@n...>
  • Re: Declaring the XML namespace
    • From: Elliotte Rusty Harold <elharo@m...>

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