- From: Dan Maharry <dan@mcd.coop>
- Date: Tue, 12 Jun 2007 10:29:36 +0100
- To: "Michael Kay" <mike@saxonica.com>, <xmlschema-dev@w3.org>
Yes I realise it's a string, but the schema docs define a string as "the *set* of finite-length sequences of characters (as defined in [XML 1.0 (Second Edition)]) that *match* the Char production from [XML 1.0 (Second Edition)]." But at this point we all start arguing around in circles. I didn't understand the implications of the word 'normative' or check the schema for schemas and so see the definition of NMTOKEN there. My point was that - to me - it doesn't explain why the spec couldn't explicitly add the word 'non-zero-length' to the English definition of NMTOKEN, IDREF etc which would have pre-empted this entire conversation. Anyway, I thank you all for your time and comments. And the location of the schema bugtracker. I didn't even realise there was one. Dan -----Original Message----- From: Michael Kay [mailto:mike@saxonica.com] Sent: 11 June 2007 15:42 To: Dan Maharry; xmlschema-dev@w3.org Subject: RE: Discrepancies in the W3C Schema docs? > My point was that the NMTOKENS type *is* defined explicitly > as non-zero-length in the schema doc while the NMTOKEN type > is not. As you say, it is only defined as non-zero-length in > the grammar rules in the XML 1.0 spec and not in the schema > docs which is my issue. > > "Any property identified as a having a set, subset or *list* > value may have an empty value unless this is explicitly ruled > out: this is not the same as absent." Says the schema doc. I > imply from that it must be ruled out in the schema doc. Well, firstly, NMTOKEN isn't a set, subset, or list, it's a string. Secondly, a normative reference from the Schema specification to the XML specification has the same force as spelling out the rules in the schema specification. Thirdly, it is in fact spelt out in the schema specification: the definition of the xs:NMTOKEN data type in the schema for schemas has <xs:pattern value="\c+" id="NMTOKEN.pattern">. (Search in XML Schema Part 2 for 'simpleType name="NMTOKEN"' to find it). > > > for minor comments like these, the best approach is to enter a bug > report > > - one per problem - in the bugzilla database. > > Where is the bugzilla database to do this? > http://www.w3.org/Bugs/Public/query.cgi Michael Kay http://www.saxonica.com/ ------------------------------------------------------------------------ -------- This Message has been Scanned by SurfControl(c) Email Filter ------------------------------------------------------------------------ -------- The Midcounties Co-operative is an innovative co-operative business, owned by its customers and staff in the 9 counties it spans. We trade in a number of retail sectors including food, travel, funerals, motors, childcare, pharmacy, post offices and IT. We are proud to be a successful co-operative, founded on co-operative values and principles that co-ops share throughout the world. This e-mail is confidential and is for the named recipient(s) only. If you are not the named recipient(s) please do not disseminate or copy this e-mail, but please delete it and any copies from your computer. The Midcounties Co-operative has taken reasonable precautions to ensure that any attachment to this e-mail has been checked for viruses. However, we cannot accept liability for any damage sustained as a result of any such viruses and advise you to carry out your own virus checks before opening any attachment. Furthermore, we do not accept responsibility for any change made to this message after it was sent by the sender. *** The Midcounties Co-operative works to protect our environment *** *** Please don't print this e-mail unless you really need to *** This Message has been Scanned by SurfControl(c) Email Filter
Received on Tuesday, 12 June 2007 09:29:47 UTC