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

Re: Addition/Subtraction of numbers.

Subject: Re: Addition/Subtraction of numbers.
From: Jeni Tennison <jeni@xxxxxxxxxxxxxxxx>
Date: Wed, 23 Jan 2002 11:48:26 +0000
xsl subtraction
Hi Raj,

>         I am trying to add numbers present in two variables like
> <xsl:variable name="temp1" select="$t1 + $t2" />
> if varaibles t1 , t2 have some numbers, it goes through fine. But if
> they are null NaN is comming in the output. is there a way I can
> convert these variables to numbers before adding them(null should be
> converted to zero) or Is there any other way to handle this
> condition.

In XSLT 1.0 you need something like:

  <xsl:variable name="n1">
      <xsl:when test="number($t1) = number($t1)">
        <xsl:value-of select="$t1" />
  <xsl:variable name="n2">
      <xsl:when test="number($t2) = number($t2)">
        <xsl:value-of select="$t2" />
  <xsl:variable name="temp1" select="$n1 + $n2" />

XSLT 2.0 makes it easier because of the conditional expressions in
XPath 2.0. You can do:

  <xsl:variable name="n1"
    select="if (number($t1) = number($t1)) then $t1 else 0" />
  <xsl:variable name="n2"
    select="if (number($t2) = number($t2)) then $t2 else 0" />
  <xsl:variable name="temp1" select="$n1 + $n2" />

Depending on how you're getting the values of $t1 and $t2 (and the
final definition of if-absent()) it might also be possible to use the
if-absent() function:

  <xsl:variable name="temp1"
    select="if-absent($t1, 0) + if-absent($t2, 0)" />



Jeni Tennison

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list

Current Thread


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.
First Name
Last Name
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.