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Re: namespaces redux (was: Re: [XML Schema] Here's h

• From: "Pete Cordell" <petexmldev@codalogic.com>
• To: "Andrew Welch" <andrew.j.welch@gmail.com>,"Amelia A Lewis" <amyzing@t...>
• Date: Tue, 16 Oct 2012 09:50:42 +0100

For someone creating their own markup, unless there is some reason that they 
can't such as backwards compatibility, I would suggest doing:

<com.example.mySchema.myRoot   myAttribute="blah">
    <myElement  myQName="com.example.mySchema.name">
        blah
    </myElement>
</com.example.mySchema.myRoot>

I would have some 'blessed' domains like 'w3c' and 'ietf' so you could do:

<w3c.html></w3c.html>

etc.

But now I'm navel gazing!

Pete Cordell
Codalogic Ltd
Twitter: http://twitter.com/petecordell
Interface XML to C++ the easy way using C++ XML
data binding to convert XSD schemas to C++ classes.
Visit http://codalogic.com/lmx/ or http://www.xml2cpp.com
for more info
----- Original Message ----- 
From: "Andrew Welch" <andrew.j.welch@gmail.com>
To: "Amelia A Lewis" <amyzing@talsever.com>
Cc: <xml-dev@lists.xml.org>
Sent: Tuesday, October 16, 2012 9:34 AM
Subject: Re:  namespaces redux (was: Re:  [XML Schema] 
Here's how to empower instance document authors to create their own root 
element)


>>> On 10/15/2012 12:09 AM, Liam R E Quin wrote:
>>> (in fact, best practices uses of W3C namespaces are not, ultimately, so
>> bad).
>
> Here are some namespace best practices for someone about create their
> own markup:
>
> 1. Always use a prefix, never change the default namespace.
> 2. Choose a namespace that will never, ever change - eg don't include
> version numbers or dates
> 3. Avoid using URLs, the globally unique benefit is far outweighed by
> the confusion cost
> 4. Keep it short, XPath 3.0 can include the namespace directly in the 
> xpath
> 5. Use the standard prefixes for existing namespaces
> 6. Always declare all the namespaces on the root element
>
> The goal is to help consumers of the xml avoid all the usual pitfalls
> around namespaces.  Some potentially controversial ones in there...
> :)
>
>
>
> -- 
> Andrew Welch
> http://andrewjwelch.com
>
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• Follow-Ups:
  • Re: namespaces redux (was: Re: [XML Schema]Here's how to empower instance document authors to create their own root element)
    • From: Andrew Welch <andrew.j.welch@gmail.com>

• References:
  • [XML Schema] Here's how to empower instance document authors tocreate their own root element
    • From: "Costello, Roger L." <costello@mitre.org>
  • Re: [XML Schema] Here's how to empower instance documentauthors to create their own root element
    • From: Timothy Cook <timothywayne.cook@gmail.com>
  • Re: [XML Schema] Here's how to empower instance documentauthors to create their own root element
    • From: "Christopher R. Maden" <crism@maden.org>
  • Re: [XML Schema] Here's how to empower instance documentauthors to create their own root element
    • From: John Cowan <cowan@mercury.ccil.org>
  • Re: [XML Schema] Here's how to empower instance documentauthors to create their own root element
    • From: "Christopher R. Maden" <crism@maden.org>
  • Re: [XML Schema] Here's how to empower instance documentauthors to create their own root element
    • From: Liam R E Quin <liam@w3.org>
  • Re: [XML Schema] Here's how to empower instance documentauthors to create their own root element
    • From: "Christopher R. Maden" <crism@maden.org>
  • namespaces redux (was: Re: [XML Schema] Here's how toempower instance document authors to create their own root element)
    • From: Amelia A Lewis <amyzing@talsever.com>
  • Re: namespaces redux (was: Re: [XML Schema]Here's how to empower instance document authors to create their own root element)
    • From: Andrew Welch <andrew.j.welch@gmail.com>