> ><xsl:when test="preceding-sibling::bar[1]">
> 
> 
> AFAICT, that tests whether there's at least 1 bar among preceding siblings, 
> rather than whether the immediately preceding sibling is a bar.  Likewise 
> the following sibling test below.


yes you want

preceding-sibling::node()[1][self::bar]


following--sibling::node()[1][self::text()]



etc

David

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