Re: [xsl] XML tags as map keys and impact on XSLT/XPath

Subject: Re: [xsl] XML tags as map keys and impact on XSLT/XPath
From: Andrew Welch <andrew.j.welch@xxxxxxxxx>
Date: Fri, 18 Jun 2010 09:19:31 +0100
On 18 June 2010 07:28, Wolfgang Laun <wolfgang.laun@xxxxxxxxx> wrote:
> Every now and then, people (not me) want to represent a Map<K,V> in XML by
> like
>   <map>
>     <k1>v1</k1>
>     <k2>v2</k2>
>     ...
>   </map>
> with ki from K and vi from V. Apart from the obvious limitation for K's

A less limiting approach is:

<map key=" " value=" "/>

> I feel that this is somehow violating the spirit of XML.

I know what you mean.... but for name/value pairs its fine.

> So, more specifically: Doesn't such a "structure" complicate the writing
> of XSLT constructs? Aren't there any statements or expressions that
> won't be usable at all? (I don't need an exhaustive list of what isn't
> possible - I'm more interested in a general judgment.)

Not really.  The only issue is with the QName limitation on the K
values, which you can avoid easily enough.

There was talk of "sequences of sequences" in 2.1... I don't know
whether that has made it.

Andrew Welch

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