Re: [xsl] XPath for expressing contiguous elements?

Subject: Re: [xsl] XPath for expressing contiguous elements?
From: "Liam R. E. Quin liam@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 1 May 2017 20:49:35 -0000
On Mon, 2017-05-01 at 20:01 +0000, Dimitre Novatchev
dnovatchev@xxxxxxxxx wrote:
> > And here is an XPath 2.0 expression:
> > 
> B B B B B B B empty(/*/*[not(self::A)][. >> /*/A[1] and /*/A[last()] >> .])
> This XPath expression happens to be slightly shorter (by 3
> characters)
> than the XPath 1.0 expression suggested by Dr. Michael Kay:
> B B B B B not(*[not(self::A)][following-sibling::A][preceding-sibling::A])

On the other hand even experienced APL programmers had difficulty
maintaining their programs at times... :) so I prefer using the named

The expressions are not exactly equivalent either, in general, if A
elements can occur at multiple places in the document.

Liam R. E. Quin <liam@xxxxxx>
The World Wide Web Consortium (W3C)

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