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RE: Re: xpath2 functions returning ()

Subject: RE: Re: xpath2 functions returning ()
From: "Michael Kay" <michael.h.kay@xxxxxxxxxxxx>
Date: Fri, 4 Jan 2002 17:40:15 -0000
RE:  Re: xpath2 functions returning ()
> A string is a list (sequence) of characters. The empty string
> is an empty such
> sequence. It is "no character" but it is still a string
> (sequence) -- the empty
> string (sequence).

If you modeled a string as a sequence of characters, then to have a sequence
of strings you would need to allow sequences of sequences; and then you
would need to distinguish between an empty sequence and a sequence whose
only member was an empty sequence. You can't get rid of the problem that

Mike Kay

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list

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