Re: [xsl] ordered selection of child elements

Am 08.03.2018 um 07:36 schrieb Dr. Patrik Stellmann 
patrik(_dot_)stellmann(_at_)gdv-dl(_dot_)de:
> Hi,
>
> a question more motivated by curiosity than by a real problem:
>
> With
>
> <xsl:sequence select=“a, b“/>
>
> I will get first element a and second element b – no matter of the 
> order within the input document.
> But with
>
> <xsl:sequence select=“root/(a, b)“/>
>
> I will get the elements a and b in document order. So this behaves 
> identical to
>             <xsl:sequence select=“root/(a | b)“/>
>
> Why?
>
> Of course I could write
>
> <xsl:sequence select=“root/a, root/b“/>
>
> To ensure a specific order. But sometimes the expression of “root” is 
> much more complex so I’d like to avoid writing it twice or putting it 
> in a variable…
You can move to XPath/XSLT 3 and use the "!" operator

  root!(a, b)

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