RE: [xsl] Re: XPath 2.0: Problems with the two boolean constants true and false

["Michael Kay" <mhk@xxxxxxxxx>]

> 
> I am referring to the situation after the bug is corrected.
> 
> Then, this template:
> 
>   <xsl:template name="And" match="test:*">
>     <xsl:param name="arg1" as="xs:boolean"/>
>     <xsl:param name="arg2"  as="xs:boolean"/>
>          <xsl:value-of 
>          select="$arg1 and $arg2"/>
>   </xsl:template>
> 
> when instantiated with:
> 
>    <xsl:apply-templates select="document('')/*/test:*[1]">
>      <xsl:with-param name="arg1" select="'false'"/>
>      <xsl:with-param name="arg2" select="'true'"/>
>    </xsl:apply-templates>
> 
> will raise an error, because the arguments are strings, but 
> the parameters of the template are of type xs:boolean.
> 
> Therefore, I am forced to remove the types for the parameters 
> of the template and do the conversion myself:
> 
>   <xsl:template name="And" match="test:*">
>     <xsl:param name="arg1"/>
>     <xsl:param name="arg2"/>
>     <xsl:value-of 
>          select="xs:boolean(xs:boolean($arg1) and 
> xs:boolean($arg2))"/>
>   </xsl:template>

Why not just call the template with boolean values?

    <xsl:apply-templates select="document('')/*/test:*[1]">
      <xsl:with-param name="arg1" select="false()"/>
      <xsl:with-param name="arg2" select="true()"/>
    </xsl:apply-templates>

Michael Kay


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