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

RE: Set variable via contents of <variable> element

Subject: RE: Set variable via contents of <variable> element
From: "Michael Kay" <mike@xxxxxxxxxxxx>
Date: Thu, 17 Dec 2009 13:45:38 -0000
RE:  Set variable via contents of <variable> element
> As I understand it, I can set the value of a variable in two ways:
> 1. By the "select" attribute of the <variable> element:
> <xsl:variable name="myvariable" select="'myvalue'"/>
> 2. By the contents of the <variable> element:
> <xsl:variable name="myvariable">
>   My value
> </xsl:variable>

Which have completely different effects. In the first case, the value of the
variable is a string. In the second it is a tree of nodes: a document node,
with a text node child containing the string "My value" (plus surrounding
whitespace). Incidentally the second form can be dramatically slower than
the first.
> But how do I set the variable using the second method? 

In XSLT 1.0 you can't.

In XSLT 2.0 you could use

<xsl:variable name="x" as="node()">
  <xsl:sequence select="..."/>
> The reason I need to do this is because I want to set the 
> variable 'usethis'
> to the result of a <choose> element which (as far as I know) 
> I cannot include in a "select" attribute. 

Yes, in XSLT 1.0 this is a problem. Sometimes a workaround is to use

<xsl:variable select="expr1[condition] | expr2[not(condition)]"/>

which is equivalent to the XSLT 2.0

<xsl:variable select="if (condition) then expr1 else expr2"/>


Michael Kay

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.