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

Re: Nasty XPath expressions


nasty numbers
Hi Joshua,

Joshua Allen wrote:

> Hmm, do you mean XPath expressions with functions, such as concat()? I
> guess I was purely assumping about what the behavior of .valueOf is.

yes, I meant expressions in the sense of the spec:

"The primary syntactic construct in XPath is the expression. An 
expression matches the production Expr. An expression is evaluated to 
yield an object, which has one of the following four basic types:

     * node-set (an unordered collection of nodes without duplicates)
     * boolean (true or false)
     * number (a floating-point number)
     * string (a sequence of UCS characters)"

Jeni Tennison has pointed out in a private communication (I've never 
used that phrase before :) that you can of course communicate a binary 
result by returning an empty or non-empty node-set. Arbitrary strings 
and large, negative or non-integer numbers would be pretty tricky.

Francis.




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.