- From: David Carlisle <davidc@nag.co.uk>
- Date: Thu, 8 May 2003 17:28:48 +0100
- To: campagne@physbio.mssm.edu
- CC: www-math@w3.org
> After reading the relevant portion of the XML schema spec, I still > have no idea what the constrain mean, but I report this here hoping > that it can be useful. Thanks for the report. The error means that (in DTD/regexp syntax) we have some content model like (a,b)|(a,c) so when the validator comes to an "a" element it doesn't know which branch to take (looking ahead to see if the next element is b or c is not allowed). Such a content model has to be written as a,(b|c) so a only appears once then you get the choice of b or c. this is the "Unique Particle Attribution" constraint. We'll determine whether this is a problem with the schema (which we checked using a different validator) or with the schema processor getting confused and incorrectly reporting an error and get back to you on this.... David ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________
Received on Thursday, 8 May 2003 12:29:06 UTC