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Re: Why associate an attribute with a namespace ?

• To: "mihaiu@m..." <mihaiu@m...>
• Subject: Re: Why associate an attribute with a namespace ?
• From: Peter Hunsberger <peter.hunsberger@g...>
• Date: Wed, 16 Feb 2005 16:10:08 -0600
• Cc: Michael Kay <mike@s...>, xml-dev@l...
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• In-reply-to: <1108589763.4213bcc3d8423@w...>
• References: <1108589763.4213bcc3d8423@w...>
• Reply-to: Peter Hunsberger <peter.hunsberger@g...>

On Wed, 16 Feb 2005 23:36:03 +0200, mihaiu@m...
<mihaiu@m...> wrote:
> 
> >The rationale is to allow attributes whose semantics are independent of the
> >element they appear on: examples are xml:lang, xml:base, xsi:type,
> >xsl:version.
> >
> 
>        The purpose of a namespace is to make it easier to avoid name collisions. The
> special attributes that you speak about only need some kind to special syntax
> in order to distinguish them from the others.

Yeah, that speciial syntax is called namespaces...

<snip>new form of special case syntax adding yet more semantic confusion</snip> 

> 
>        I hope that you understand me: there is no need for namespaces in this case
> because namespaces are designed to solve a *completely* different set of
> problems.
 
Prey tell, exactly what would that be?

>        One more thing: you said "independent". For mode clarity I will quote you
> again:
> 
> >The rationale is to allow attributes whose semantics are independent of the
> >element they appear on:
> 
> The attributes are not independent from the element containing them; they apply
> to the containing element inclusively. For example the xml:lang attribute: if
> this attribute is applied to a mixed content element then you expect that the
> #PCDATA from the current element will respect the xml:lang attribute (not only
> its children).

You appear to be confusing semantics with scope. 

-- 
Peter Hunsberger

• References:
  • Re: Why associate an attribute with a namespace ?
    • From: mihaiu@m...

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