W3C home > Mailing lists > Public > www-xpath-comments@w3.org > October to December 2000

Re: grammar rule [35]

From: Michael Dyck <MichaelDyck@home.com>
Date: Fri, 20 Oct 2000 11:04:31 -0700
Message-ID: <39F0892F.2AADC86@home.com>
To: www-xpath-comments@w3.org
Craig Maynard (maynard@math.uccs.edu) wrote:
>
> In grammar rule [35]
> 
>         FunctionName    ::= QName - NodeType
> 
> I don't understand the meaning of the dash or hyphen between QName and NodeType.

It's a minus sign: the set of FunctionNames is the set of QNames minus the
set of NodeTypes. (A FunctionName can be any QName *except* those that
match the NodeType production.)

-Michael Dyck
Received on Friday, 20 October 2000 14:05:36 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Wednesday, 3 October 2007 16:05:54 GMT