Re: Cannot process a result tree fragment as a node-se
<p>Number: <xsl:value-of select="count(exsl:node-set($filter))"/></p> <!-- DON'T FUNCTION -->
count should give 1. I guess you want to count the RecursoEx1 elements so you should use
although with your sample document and stylesheet variables that count is 0.
But it is not clear what you want to achieve and why you use xsl:copy-of and exsl:node-set, it looks to me as if that might not be necessary at all.
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