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

Re: Re: XSL Variable declaration

Subject: Re: Re: XSL Variable declaration
From: Vasu Chakkera <vasucv@xxxxxxxxx>
Date: Mon, 14 Feb 2011 12:09:16 +0000
Re:  Re: XSL Variable declaration
Dear David/Mike.
Thanks for this..

Yeas, It does kind of confuse the reader..


On 14 February 2011 11:07, Michael Kay <mike@xxxxxxxxxxxx> wrote:
> On 14/02/2011 10:48, Vasu Chakkera wrote:
>>    There is an interesting stylesheet I came across this morning where
>> some developer had declared two Xsl:variables one after the other with
>> the same name.
>>    <xsl:variable name = "foo">
>>   </xsl:variable>
>>  <xsl:variable name = "foo">
>>   </xsl:variable>
>>    Not sure why he did that, but to my surprise, it seems to be valid
>> in XSLT2 .. and as my expectations, it failed in XSLT1 saying two
>> variables cant have same name within the same scope..
>>   Is this right??
> Yes, this is permitted in XSLT 2.0 but not 1.0 (I assume you are talking
> about local variables).
> It can be quite a handy style of programming, so long as you recognize that
> each xsl:variable is a new variable:
> <xsl:variable name="s" select="@something"/>
> <xsl:variable name="s" select="substring-before($s, ':')"/>
> <xsl:variable name="s" select="substring-after($s, '/')"/>
> <xsl:variable name="s" select="concat('(', $s, ')')"/>
> <xsl:value-of select="$s"/>
> Saves (a) writing deeply nested XPath expressions, and (b) thinking up new
> variable names for intermediate results, or (c) changing variable names
> an extra computation step is introduced.
> But it might confuse some readers, so use with care.
> Michael Kay
> Saxonica

Vasu Chakkera
NodeLogic Limited

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.