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From "Foxy Shadis" <foxysha...@hotmail.com>
Subject Re: Problem Using an xsl:param in a Predicate
Date Mon, 12 May 2003 03:21:32 GMT
You can't use quotes with variables in predicates, unless the actual 
preference you're matching is '$preference'. No PHP fun here. Just take the 
quotes off and you should be fine.


Curly braces are only used in result tree fragments (ie, output), never in 
regular XPath.

You might wish to check out the XSL list over at Mulberry Tech, it's geared 
toward answering general XSL questions, whereas this one is more for 
features and usage specific to Xalan.


Hope this helps.

Swiftpaw Foxyshadis, wildlife artist
foxyshadis@hotmail.com | http://foxyshadis.dyndns.org/

>From: shane_curcuru@us.ibm.com
>To: xalan-j-users@xml.apache.org
>CC: treumanw@onebox.com
>Subject: Fw: Problem Using an xsl:param in a Predicate
>Date: Sun, 11 May 2003 21:10:02 -0400
>As usual, the best place to get Xalan questions answered is on the
>xalan-j-users@xml.apache.org list, as noted on our website.
>You can read an archive at
>- Shane
>----- Forwarded by Shane Curcuru on 05/11/2003 09:03 PM -----
>I have a named template called 'find-persons-with-preference' which
>receives a single xsl:param with name = "preference", as shown below.
>Note it contains several commented-out xsl:for-each statements which
>I have used during testing.
><xsl:template name='find-persons-with-preference'>
>                  <xsl:param name = "preference" />
>                  <in-called-template pref='{$preference}' />
>                  <xsl:for-each select =
>'/person:company/person:person[person:music-preference="$preference"]' >
>                  <!--<xsl:for-each select =
> >-->
>                  <!--<xsl:for-each select =
>'/person:company/person:person[person:music-preference="folk"]' >-->
>                  <!--<xsl:for-each select =
>'/person:company/person:person' >-->
>                                  <person-with-preference>
>                                  <xsl:value-of select='@name' />
>                                  </person-with-preference>
>                  </xsl:for-each>
>The predicate [person:music-preference="$preference"] returns no nodes.
>Nor does the version of the predicate with curly braces,
>[person:music-preference="{$preference}"].  However, the hard-coded
>version of the predicate, [person:music-preference="folk"], DOES return
>nodes.  Note this template begins by displaying the value of the
>parameter.  For example, when passed the parameter "folk", this template
>displays the line.
>     <in-called-template pref="folk"></in-called-template>
>When using the hard-coded version of the predicate, the following rows are
>     <in-called-template pref="folk"></in-called-template>
>     <person-with-preference>Sammy</person-with-preference>
>     <person-with-preference>Mika</person-with-preference>
>When using $preference in the predicate, either with or without the curly
>the following row is obtained instead:
>     <in-called-template pref="folk"></in-called-template>
>Is there something wrong with my non-hardcoded predicate?
>Any help would be much appreciated.
>Thank you.

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