[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: XPath expression to check that there are no inter
empty((* except B) [following-sibling::B and preceding-sibling::B]) > On 19 Jul 2016, at 16:44, Costello, Roger L. costello@xxxxxxxxx <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: > > Hi Folks, > > This XML has a solid block of <B> elements: > > <Document> > <A/> > <B/> > <B/> > </Document> > > This XML has an intervening <C> element: > > <Document> > <A/> > <B/> > <C/> > <B/> > </Document> > > I need an XPath expression to return a Boolean value: > > Return true if there is one solid block of <B> elements > (no intervening elements). > Otherwise, return false. > > I created a horrendous XPath expression to solve it: > > count(B) eq (B[last()]/count(preceding-sibling::*)+1 - B[1]/count(preceding-sibling::*)) > > Can you provide a better (simpler, more efficient) XPath expression? > > /Roger
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