Cart
[Home] [By Thread] [By Date] [Recent Entries]
Mark McDonald wrote: > > <!ELEMENT x (a? | b?)> > > <!ELEMENT a (c,d,e,f,g)> > > <!ELEMENT b (c,d,e,f,h)> > > > > With an input of elements c, d, e, f, h in element x. And David Brownell replied: > Actually, the content model for "x" is in error there, so any > XML processor is allowed to report an error however rudely it > chooses to do so. That content model is "ambigious". I can only assume that both of you are suffering from brain farts. Any "x" that contains anything but an "a" or a "b" is obviously invalid. You are talking as if the above declarations were: <!ENTITY % a "(c,d,e,f,g)"> <!ENTITY % b "(c,d,e,f,h)"> <!ELEMENT x (%a;? | %b;?)> Element declarations refer to lexically apparent objects (elements), not to mere groups of elements defined by pseudo-BNF. -- John Cowan cowan@c... e'osai ko sarji la lojban. xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
|
