[xsl] ordered selection of child elements

["Dr. Patrik Stellmann patrik.stellmann@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

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...

Thanks and regards,
Patrik



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