Re: [xsl] xPath function in xslt 3.0

It works for me, changing only the invocation of the function in match="preis".

Perhaps the content of the "preis" element is not xs:double or xs:untypedAtomic.

Michael Kay
Saxonica

> On 10 Dec 2018, at 18:21, Leo Studer leo(_dot_)studer(_at_)varioweb(_dot_)ch 
> <xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:
>
> Hello
>
> The function below is working well in xQuery 3.0 but not in xslt 3.0 
> (Saxon-EE 9.8.0.12 in Oxygen) where it returns NaN. I cannot see the problem? 
> Any suggestion?
>
> Thanks in advance
> Leo
>
>
>   <xsl:variable name="exchangeRate" select="function ($fromCurrency as 
> xs:string, $toCurrency as xs:string) as xs:double{
>     if ($fromCurrency = $toCurrency) then 1.0 else
>     number(doc(concat('http://www.floatrates.com/daily/',$fromCurrency,'.xml 
> <http://www.floatrates.com/daily/',$fromCurrency,'.xml>'))
>     //item[baseCurrency=$fromCurrency and 
> targetCurrency=$toCurrency]/exchangeRate)
>     }"/>
>   
>   <xsl:template match="preis">
>     <xsl:value-of select="$exchangeRate('USD','CHF’) * ."/>
>   </xsl:template>
>
>
>
>
> Whereas in xQuery the same function works as it is expected
> declare variable $exchangeRate := function ($fromCurrency as xs:string, 
> $toCurrency as xs:string) as xs:double{
>         if ($fromCurrency = $toCurrency) then 1.0 else
>         number(doc(concat('http://www.floatrates.com/daily/ 
> <http://www.floatrates.com/daily/>',$fromCurrency,'.xml'))
>         //item[baseCurrency=$fromCurrency and 
> targetCurrency=$toCurrency]/exchangeRate)
> };
>
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