[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: Declaring the XML namespace


xmlns xml namespace


Michael Kay wrote:
> 
> This is probably the kind of thing that only interests conformance
> testers, but:
> 
> With the following XML document, I get three different results from
> different parsers.
> 
> <doc xmlns:xml="http://www.w3.org/XML/1998/namespace"/>
> 
> Crimson rejects it.
> AElfred accepts it, and doesn't notify the namespace to the SAX2
> ContentHandler.
> Piccolo accepts it, and does notify the namespace to the SAX2
> ContentHandler.
> 
> Any opinions on which is right?
> 

cl-xml accepts and reports:

? (in-package "XML-PARSER")
#<Package "XML-PARSER">
? *version*
"0.918+"
? (parse-document "<doc xmlns:xml='http://www.w3.org/XML/1998/namespace'/>")
#<DOC-NODE <no uri> #x8C7E656>
9
? (describe (root *))
#<ELEM-NODE {}doc 1 #x8C772C6>
Class: #<STANDARD-CLASS ELEM-NODE>
Wrapper: #<CCL::CLASS-WRAPPER ELEM-NODE #x8BDC5DE>
Instance slots
DOCUMENT: #<DOC-NODE <no uri> #x8C765A6>
ORDINALITY: 1
PARENT: NIL
DEF: NIL
NAME: {}doc
CHILDREN: NIL
ATTRIBUTES: NIL
NAMESPACES: (#<NS-NODE {xmlns}xml -> "http://www.w3.org/XML/1998/namespace" #x8C77256>)
XML-QUERY-DATA-MODEL::VALID: #<Unbound>
? 

i do not understand the prescription, that the "xml" prefix is, by definition,
bound to "http://www.w3.org/XML/1998/namespace" to preclude the presense of a
binding to that effect.

furthermore, i read the recommendation as not precluding that the prefix may be
bound to anything else. whereby cl-xml also accepts

? (parse-document "<doc xmlns:xml='http://www.w3.org/XML/0000/namespace'/>")
#<DOC-NODE <no uri> #x8C88DFE>
9
? 

which supports distinctions, such as

? (eq (name (root (parse-document "<xml:lang xmlns:xml='http://www.w3.org/XML/1998/namespace'/>")))
      
      (name (root (parse-document "<xml:lang xmlns:xml='http://www.w3.org/XML/1998/namespace'/>"))))
T

v/s

? (eq (name (root (parse-document "<xml:lang xmlns:xml='http://www.w3.org/XML/1998/namespace'/>")))
      
      (name (root (parse-document "<xml:lang xmlns:xml='http://www.w3.org/XML/0000/namespace'/>"))))
NIL
? 

but i suppose opinions may differ.

PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
Email
First Name
Last Name
Company
Subscribe in XML format
RSS 2.0
Atom 0.3
 

Stylus Studio has published XML-DEV in RSS and ATOM formats, enabling users to easily subcribe to the list from their preferred news reader application.


Stylus Studio Sponsored Links are added links designed to provide related and additional information to the visitors of this website. they were not included by the author in the initial post. To view the content without the Sponsor Links please click here.

Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.