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Re: Diagram of XPath axes

Subject: Re: Diagram of XPath axes
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>
Date: Fri, 25 May 2012 14:23:33 -0400
Re:  Diagram of XPath axes
Hi again,

On 5/25/2012 1:13 PM, G. Ken Holman wrote:
hmm now that I've understood it a little better, maybe 'remove', eg
select="//* remove *[. >> $target]"

Well, for that particular expression I think "except" works just fine.

It was when the right hand side referenced current() that I thought it
didn't work. I think the intent of the "until" was to be able to cite a
singleton on the right hand side.

Hm, funny. I inferred from Mike's suggestion that any arbitrary expression, returning a Boolean, would be allowed on the right hand side, evaluated with the item in the sequence as context.

//* until (. is current())


if (exists($seq[expr])) then
  $seq[position() le index-of($seq,$seq[expr)]
  else $seq

where expr is an arbitrary expression returning a Boolean.

Cheers, Wendell

Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
Mulberry Technologies, Inc.                http://www.mulberrytech.com
17 West Jefferson Street                    Direct Phone: 301/315-9635
Suite 207                                          Phone: 301/315-9631
Rockville, MD  20850                                 Fax: 301/315-8285
  Mulberry Technologies: A Consultancy Specializing in SGML and XML

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