Please blame my poor english.
your english is a lot better than my french...
Right?
Yes. The expressions are normally equivalent because the "N" is normally a
constant or a variable or some other expression that doesn't evaluate to
different values in different places. In the case that people do go
(...)[zzzz]
and zzzz is actually a numeric-valued expression that has a different
value for each item in the sequence, then it's almost always not what
the user intended! For example my SEQ[number(N)] example. If anyone
wrote that (except as an answer on xslt-list) they almost certainly
meant to write SEQ[number(../N)] (ie they meant it to mean the same as
the subsequence example, or equivalently, and more clearly write
<xsl:variable name="n" select="number(N)"/>... select="SEQ[$n]"...
as selecting all SEQ elements who's position in the initially selected
sequence is numerically equal the string value of their N child, is just
too weird.
David
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