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Re: What's wrong with namespaces? Some observations andsuggest

  • From: Amelia A Lewis <amyzing@talsever.com>
  • To: Michael Kay <mike@saxonica.com>
  • Date: Sat, 4 Dec 2010 18:40:36 -0500

Re:  What's wrong with namespaces? Some observations andsuggest
Oh, that's *beautiful*.

</eom>  I'm gonna sit here and admire it for a while.  :-)

On Sat, 04 Dec 2010 23:24:22 +0000, Michael Kay wrote:
> On 04/12/2010 01:34, Amelia A Lewis wrote:
>> Heyo.
>> So, I've been (recently, publicly) critical of the Namespaces in XML
>> specification.  My summary version: when I try to teach someone who
>> doesn't care about XML about XML APIs, it's namespaces where they
>> Boggle and Fall Down.
> I agree with this analyssis.
> Elements should have simple (string-valued) names, using hierarchic 
> naming to achieve uniqueness, and context-sensitive abbreviation to 
> achieve conciseness. It should always be legitimate to use the full 
> name if abbreviation is not wanted.
> Hierarchic naming: for example an element might be called 
> :org.w3c.html.table.
> Abbreviation: this might be abbreviated to "table". How is the 
> abbreviated name resolved? Using the hierarchic name of the parent 
> element. So the outermost element gives the full name
> <:org.w3c.html.html>
> and inner elements can use abbreviated names if they are in the same 
> "namespace":
> <:org.w3c.html.html>
> <head>
> <title>...</title>
> </head>
> <body>
> <:org.w3c.svg.svg>
> <rectangle>
>            ....
> Of course, this is hopelessly incompatible. Or is it? One could 
> devise a transition mechanism. If we see something like
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
> version="2.0">
> then we could regard that as merely a quaint old-fashioned way of saying
> <:org.w3c.www.1999.XSL.Transform.stylesheet version="2.0">
> Hierarchic naming with optional abbreviation works so well across so 
> many branches of computing, and indeed real life (for example phone 
> numbers); it's a tragedy that it wasn't adopted from the start.
> Michael Kay
> Saxonica
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