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

[no subject]

[no subject]
>From David:)
> The xpath/xquery specs
> essentially informally use such a type to
>
>http://www.w3.org/TR/xpath20/#dt-numeric
>
> but because it isn't really a type there have to be special XDM
> type promotion rules.


Mit besten Gruessen / Best wishes,

Hermann Stamm-Wilbrandt
Developer, XML Compiler, L3
Fixpack team lead
WebSphere DataPower SOA Appliances
----------------------------------------------------------------------
IBM Deutschland Research & Development GmbH
Vorsitzender des Aufsichtsrats: Martin Jetter
Geschaeftsfuehrung: Dirk Wittkopp
Sitz der Gesellschaft: Boeblingen
Registergericht: Amtsgericht Stuttgart, HRB 243294


From:       Michael Kay <mike@xxxxxxxxxxxx>
To:         xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Date:       10/02/2010 11:55 PM
Subject:    Re:  How do I determine that an item is a numeric atomic
            value?




> In XPath 1.0:
> ==========
>
> number($x) = number($x)

That would also return true if $x is a string or boolean or a node that
can be converted to a number, for example the string "12" or the boolean
true() or an attribute containing the value "12". In fact I think that's
the closest you can get in XPath 1.0 - and it's good enough, because you
don't really want to know whether it IS a number, you want to know
whether it can be used in a context where a number is required.

Michael Kay
Saxonica
>
> In XPath 2.0
> ==========
> Either the above, or:
>
> $x instance of xs:double or $x instance of xs:decimal

Current Thread

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
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.