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Re: [xml-dev] What's wrong with namespaces? Some observations and suggestions

On Sat, Dec 4, 2010 at 3:24 PM, Michael Kay <mike@saxonica.com> wrote:
> 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>


It's good to have a syntactically complete example:

<:org.w3c.html.html>
	<head>
		<title>...</title>
	</head>
	<body>
		<:org.w3c.svg.svg>
			<rectangle/>
		</svg>
	</body>
</html>

This shows an additional advantage: the end tag can be completely abbreviated.

An interesting question is how we would write compact XPath
expressions for XML2:

     /*/head/body

should select the :org.w3c.html.body element.

Should we have to write:

    /*/head/body/:org.w3c.svg.svg

or

could it be:

    /*/head/body/:~svg.svg

If we don't find convincing counterexamples, I believe such compact
syntax for XPath expressions is appropriate.


-- 
Cheers,
Dimitre Novatchev
---------------------------------------
Truly great madness cannot be achieved without significant intelligence.
---------------------------------------
To invent, you need a good imagination and a pile of junk
-------------------------------------
Never fight an inanimate object
-------------------------------------
You've achieved success in your field when you don't know whether what
you're doing is work or play


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