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Re: Failing string() test fail

Subject: Re: Failing string() test fail
From: "Christopher R. Maden" <crism@xxxxxxxxx>
Date: Fri, 26 Jun 2009 02:09:43 -0400
Re:  Failing string() test fail
Karl Stubsjoen wrote:
> What would cause a string() test to fail?  I've tested on a simple
> xml, like this, with the following test:
> 
> Assume we are matching on B
> 
> <xsl:if test="string(C/@test)">Yes</xsl:if> You get one Yes.
> 
> <A>
>     <B>
>         <C/>
>         <C/>
>         <C/>
>     </B>
>     <B>
>         <C/>
>         <C test="yes"/>
>         <C/>
>     </B>
> </A>

What would you expect to get?

Remember that in the context of xsl:if test, there is a coercion to
Boolean.  When there is no @test attribute, the string() will evaluate
to the empty string, which in turn evaluates to false.  So I would
expect no Yes for the first <B> and a Yes for the second <B>.

~Chris
-- 
Chris Maden, text nerd  <URL: http://crism.maden.org/ >
bAll I ask of living is to have no chains on me,
 And all I ask of dying is to go naturally.b b Laura Nyro
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