[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: How to 'invert' an Xpath statement please

  • From: "Philip Fearon" <pgfearo@g...>
  • To: xml-dev@l...
  • Date: Tue, 26 Aug 2008 19:16:58 +0100

Re:  How to 'invert' an Xpath statement please
On Tue, Aug 26, 2008 at 2:33 PM, Rens Duijsens <rens.duijsens@g...> wrote:

> The normal xpath statement '//NODE' will give me:
> NODE, ELEMENT (with Element 2), ELEMENT (With Element 3)
>

As previous replies have stated, your expression returns a single node
that is an element with the name 'NODE'.

If you however use this '//NODE' in an expression where a string is
expected, it will be converted to a string value that is the
concatanation of all text nodes that are children of descendant
elements, 'Element 2Element 3', in this case. The expression:
 //NODE = 'Element 2Element 3' therefore also returns true.

This non-intuitive behaviour (to me at least) is the reason why
reading the specification or a good book to get a grasp of some basic
priniciples is definitely worthwhile.

If you're not ready to buy a book yet and find the W3C specification a
bit terse, you could try the free online O'Reilly Commons book by John
E. Simpson:

http://commons.oreilly.com/wiki/index.php/XPath_and_XPointer

--

Phil Fearon
http://www.sketchpath.com


[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index]


PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
Email
First Name
Last Name
Company
Subscribe in XML format
RSS 2.0
Atom 0.3
 

Stylus Studio has published XML-DEV in RSS and ATOM formats, enabling users to easily subcribe to the list from their preferred news reader application.


Stylus Studio Sponsored Links are added links designed to provide related and additional information to the visitors of this website. they were not included by the author in the initial post. To view the content without the Sponsor Links please click here.

Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.