Re: Language construct syntax

/ Jeni Tennison <jeni@jenitennison.com> was heard to say:
[...]
| <viewport from="pipe!document" select="/doc/xsl:stylesheet"
|           subtrees="/xsl:stylesheet/xsl:template">

I'm confused about why both select and subtrees are required. I
thought the semantic of viewport was that it accepted a single
document and it processed that entire document. So I'd have thought it
could be reduced to:

<viewport from="pipe!document" select="/xsl:stylesheet/xsl:template">

What am I forgetting?

                                        Be seeing you,
                                          norm

-- 
Norman Walsh
XML Standards Architect
Sun Microsystems, Inc.