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   Re: HTML + CSS to XML + CSS - what about namespaces?

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  • From: Oliver Becker <obecker@informatik.hu-berlin.de>
  • To: xml-dev@XML.ORG
  • Date: Tue, 30 May 2000 10:49:44 +0200 (MET DST)


> The reason I have been prefixing the attributes with the namespace is that
> we have a need to include our own "custom" attributes within these elements,
> and can not assume that the name we choose for these custom attributes is
> unique. Therefor to be safe we place the html namespace prefix before html
> attributes, and our own namespace prefix before the custom elements. I
> supspect this may have been overkill, or is this an accepted way to go about
> things?

I remember there's been a long discussion if 
<prefix:element prefix:attribute="value" />
<prefix:element attribute="value" />
are the same or not.

>From the namespace point of view they are different.
>From the application point of view they might be treated equal.

According to (X)HTML the attributes belonging to (X)HTML elements are not
prefixed. If you want to include your own custom attributes you are free
to put them into your own namespace. This way the resulting code would
look like
< ... xmlns="http://www.w3.org/TR/REC-html40"
   <a href="#target" mine:owner="me" mine:href="customer">Click me</a>

So a's href and mine:href are distinguishable.


|  ob|do        Dipl.Inf. Oliver Becker                             |
|  --+--        E-Mail: obecker@informatik.hu-berlin.de             |
|  op|qo        WWW:    http://www.informatik.hu-berlin.de/~obecker |

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