Redundant xmlns:xml namespace bindings.

[Chris Simmons <cp...@decisionsoft.com>]

Hi,

I'm using the DOM 3 serializer in Xalam.  Actually, its the one now 
packaged with Xerces since they deprecated their own serializers.  I've 
found that this serializer adds xmlns:xml namespace bindings all the 
while.  Now this is not just wasteful its rather bad from a 
compatibility point of view since MSXML seems to treat an explicit 
binding of this prefix as an error!  If you don't believe me try viewing 
https://issues.apache.org/jira/secure/attachment/12371800/boundxmlprefix.xml 
in IE.

Needless to say we're keen on getting this fixed ASAP since its causing 
problems for our clients using Microsoft based tools.  I've already 
attached a test and patch to fix the bug, so I'd appreciate it if 
somebody could have a look.  Its literally a one line fix.

https://issues.apache.org/jira/browse/XALANJ-2409

Cheers,

Chris Simmons.

Re: Redundant xmlns:xml namespace bindings.

[Chris Simmons <cp...@decisionsoft.com>]

keshlam@us.ibm.com wrote:
>
> 1) The explicit binding of the xml: prefix *should* be occurring only 
> on the root element; once it's in scope, additional declarations 
> shouldn't be being produced. You might want to post enough code that 
> people can reproduce your problem for study.
>
> 2) Rejecting redundant declarations of the xml: prefix is Just Plain 
> Wrong, if they're using the correct URI. I'd suggest lighting a large 
> fire under Microsoft about that one.
>
> ______________________________________
> "... Three things see no end: A loop with exit code done wrong,
> A semaphore untested, And the change that comes along. ..."
> -- "Threes" Rev 1.1 - Duane Elms / Leslie Fish 
> (http://www.ovff.org/pegasus/songs/threes-rev-11.html)
>
1) This is true but it shouldn't be necessary to bind it at all.  
Typically the xml:lang attribute wasn't occurring on the root element 
but thousands of other descendant elements so until we added a 
work-around that added the binding explicitly at the root we had 
thousands of xmlns:xml bindings.

2) I don't disagree :) but they I can't fix MSXML...

Re: Redundant xmlns:xml namespace bindings.

[ke...@us.ibm.com]

1) The explicit binding of the xml: prefix *should* be occurring only on
the root element; once it's in scope, additional declarations shouldn't be
being produced. You might want to post enough code that people can
reproduce your problem for study.

2) Rejecting redundant declarations of the xml: prefix is Just Plain Wrong,
if they're using the correct URI. I'd suggest lighting a large fire under
Microsoft about that one.

______________________________________
"... Three things see no end: A loop with exit code done wrong,
A semaphore untested, And the change that comes along. ..."
  -- "Threes" Rev 1.1 - Duane Elms / Leslie Fish
(http://www.ovff.org/pegasus/songs/threes-rev-11.html)