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[xsl] ordered selection of child elements

2018-03-08 00:36:22

a question more motivated by curiosity than by a real problem:

            <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)"/>


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,

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