Re: [xsl] strong typed variable with restriction ?

Subject: Re: [xsl] strong typed variable with restriction ?
From: Wolfgang Laun <wolfgang.laun@xxxxxxxxx>
Date: Wed, 2 Feb 2011 11:53:12 +0100
There must be a return value defined for the containing function.
-W

On 2 February 2011 11:48, Martin Honnen <Martin.Honnen@xxxxxx> wrote:
>
> Andrew Welch wrote:
>>
>> On 2 February 2011 10:16, Matthieu Ricaud-Dussarget
>> <matthieu.ricaud@xxxxxxxxx>  wrote:
>
>>> My code looks like :
>>> <xsl:function name="igs:get-css-rule" as="element()">
>>> <xsl:param name="foobar" as="xs:string"/>  <!--(foo|bar)-->
>>> <xsl:choose>
>>> <xsl:when test="$foobar='foo'">
>>> <xsl:sequence select="igs:get-my-foo-item()"/>
>>> </xsl:when>
>>> <xsl:when test="$css='bar'">
>>> <xsl:sequence select="igs:get-my-bar-item()"/>
>>> </xsl:when>
>>> </xsl:choose>
>>> </xsl:function>
>>>
>>> And I get such a parsing  error on my xslt :
>>>  XTTE0570: Conditional expression: If none of the conditions is
satisfied,
>>> an empty
>>
>> You get the error because you must have an xsl:otherwise, you can't
>> just have xsl:whens.
>
> I am confused, http://www.w3.org/TR/xslt20/#xsl-choose says
>
> <xsl:choose>
>  <!-- Content: (xsl:when+, xsl:otherwise?) -->
> </xsl:choose>
>
> so in general the xsl:otherwise is optional.
>
> So why is the xsl:otherwise required in the above case, to ensure the result
type of the function?
>
>
>
> --
>
>        Martin Honnen
>        http://msmvps.com/blogs/martin_honnen/

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