Subject: Re: [xsl] Need test for preceding-sibling From: "G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx> Date: Thu, 23 Apr 2009 14:25:51 -0400 |
I have a structure like this:
<a1/> <a2/> <a1/> <a2/> <b/> <c/> <a2/> <a1/> <a2/>
I need to ensure that each <a2> has a preceding <a1>, although there may be intervening tags.
I know that
name(preceding-sibling::*[1]
gives me the name of the first preceding sibling, but how do I construct a test that gives me only the first preceding <a1> or <a2> tag?
<xsl:for-each-group select="*" group-ending-with="a2"> <xsl:if test="not(current-group()/self::a1)"> Error! No corresponding a1 for the given a2 </xsl:if> </xsl:for-each-group>
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