On Mon, 2011-12-12 at 16:54 -0800, Lou Argyres wrote:
[...]
Is there an XPATH-2 select that can count preceding-siblings up to the
first preceding @level = $lvl-1?
<xsl:variable name="lvl" select="@level"/>
so, you could also say,
<xsl:variable name="upto"
select="preceding-sibling::section[@level eq $lvl - 1]" />
The preceding sections you don't want are then
<xsl:variable name="not-these-ones-please"
select="($upto | $upto/preceding-sibling::section)" />
and so you now want
preceding-sibling::section except $not-these-ones-please
which is in fact an XPath 2 expression.
Any (negligible) performance penalty for using variables is
insignificant in most cases compared to the time taken for a human to
understand the resulting expression :-)
There are lots of other ways to solve this question, of course.
Liam
--
Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/
Pictures from old books: http://fromoldbooks.org/
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