Re: XPath selecting chain of following siblings of the

>  and I'm trying to create XSLT  1.0 script, which would nest
>  "uninterrupted" sibling groups of 'a' elements into 'a-block'
>  elements 

You asked for a 1.0 script (and one's been posted) but just to note that
like most grouping questions the answer in xslt2 is much more readable
as there is specific syntax for this, you want to group together all
adjacent a nodes, so that's

<xsl:for-each-group select="*" group-adjacent="self::a">
...

David