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Re: What's wrong with a variable inside a xsl:when ?

Subject: Re: What's wrong with a variable inside a xsl:when ?
From: Ronan Klyne <ronan.klyne@xxxxxxxxxxx>
Date: Wed, 20 Jun 2007 14:44:21 +0100
Re:  What's wrong with a variable inside a xsl:when ?
Norman Rosner wrote:
> Yeah I did that
> 
> 
> 
>     <xsl:variable name="translation">
>       <xsl:choose>
>     <xsl:when test="$kind = 'ADJA'"><xsl:value-of
> select="mt:lexicon_adjectives($lemma)"/></xsl:when>
>     <xsl:when test="$kind = 'NN'"><xsl:value-of
> select="mt:lexicon_noun($lemma)"/></xsl:when>
>     <xsl:otherwise>[set the value here]</xsl:otherwise>
>       </xsl:choose>
>     </xsl:variable>
> 
> 
> and what I got from saxon was :
> 
> Warning: at xsl:variable on line 25 of
> file:/Users/jeckyll/studium/au/project/norman/norman_neu.xsl:
>   SXWN9001: A variable with no following sibling instructions has no effect
> 
> 
> but that sounds strange to me because i think i have sibling element in
> my variable element or am i wrong?
> 
> thanks for help!
> 
> On 20.06.2007, at 15:25, cknell@xxxxxxxxxx wrote:
> 
>>> I need that variable inside my when  element so i can use a different
>>> function then inside
>>> another when  element.
>>
>> I don't understand this, but probably your notion that you need to do
>> this in the way you are trying to do it is wrong.
>>
>> In general, with XSLT you need to set the value of a variable in a
>> manner that seems "inside out" as compared to procedural languages.
>>
>> This is the general form:
>>
>> <xsl:variable name="x">
>>   <xsl:choose>
>>     <xsl:when test="">[set the value here]</xsl:when>
>>     <xsl:otherwise>[set the value here]</xsl:otherwise>
>>   </xsl:choose>
>> </xsl:variable>
>>
>> -- 
>> Charles Knell
>> cknell@xxxxxxxxxx - email
>>
>>
>>
>> -----Original Message-----
>> From:     Norman Rosner <jeckyll@xxxxxxx>
>> Sent:     Wed, 20 Jun 2007 15:08:38 +0200
>> To:       xsl-list@xxxxxxxxxxxxxxxxxxxxxx
>> Subject:   What's wrong with a variable inside a xsl:when ?
>>
>> Hi Folks,
>>
>> i have a problem with defining a variable inside a when element.
>>
>> If i write it this way, so that the variable is outside everything is
>> fine with saxon.
>>
>>    <xsl:function name="mt:check_the_next">
>>      <xsl:param name="kind"/>
>>      <xsl:param name="lemma"/>
>>
>>      <xsl:variable name="translation_adja"
>> select="mt:lexicon_adjectives('texanisch')"/>
>>
>>      <xsl:choose>
>>        <xsl:when test="$kind = 'ADJA'">
>>     .   
>>     .
>>     .
>>
>>    </xsl:function>
>>
>> But if i write it this way,
>>
>>    <xsl:function name="mt:check_the_next">
>>      <xsl:param name="kind"/>
>>      <xsl:param name="lemma"/>
>>
>>      <xsl:choose>
>>        <xsl:when test="$kind = 'ADJA'">
>>
>>           <xsl:variable name="translation_adja"
>> select="mt:lexicon_adjectives('texanisch')"/>
>>     .   
>>     .
>>     .
>>
>>    </xsl:function>
>>
>>
>> so that the variable is inside my when element saxon does nothing.
>> It just tells me the following:
>> Warning: at xsl:variable on line 22 of file:/Users/jeckyll/studium/au/
>> project/norman/norman_neu.xsl:
>>    SXWN9001: A variable with no following sibling instructions has no
>> effect
>>
>>
>> I don't know what to o because the failure that there are no siblings
>> is not correct i think because the value is choosen.
>>
>> Pleas help me xsl-List members :) I need that variable inside my when
>> element so i can use a different function then inside another when
>> element.
>>
>> What am i doing wrong ?
>>
>>
>> cheers,
>>
>> norman
> 
> 

The message is warning that there is no element after the
</xsl:variable> - essentially that the variable is not being used.

If you follow the variable definition with something like <xsl:value-of
select="$translation"/>, then this warning will disappear.

	# r

-- 
Ronan Klyne
Business Collaborator Developer
Tel: +44 (0)870 163 2555
ronan.klyne@xxxxxxxxxxx
www.groupbc.com

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