[xsl] Using paramter "-s" with a diretcory = recursive for the whole dir tree?

Subject: [xsl] Using paramter "-s" with a diretcory = recursive for the whole dir tree?
From: "Ben Stover" <bxstover@xxxxxxxxxxx>
Date: Tue, 11 Aug 2009 09:04:22 +0200
When reading web page

http://www.saxonica.com/documentation/using-xsl/commandline.html

then there is said about the parameter "-s":
"If the name identifies a directory, all the files in the directory will 
be processed individually."

Does that mean all files just in this directory?
What about files in sub-directories? Are they processed as well?

If not: How can I tell Saxon to process a whole directory tree recursively?

Ben

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