[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: namespaces support decision table
Hello, No prefix and a default namespace definition qualifies the name and thus it is OK. I tried to explain that I consider the empty prefix (no prefix) as something that can make use of a namespace declaration but I ended up confusing more. Thanks and sorry for the confusion. Shlomo. -----Original Message----- From: Pete Cordell [mailto:petexmldev@t...] Sent: ã 30 îàé 2007 12:45 To: Shlomo Yona; xml-dev@l... Subject: Re: namespaces support decision table XML Schema is just a way of describing a valid set of conforming XML documents. Indeed, it is only one way of many (c.f. Relax NG, XDR etc.). So in effect, the set of valid XML documents can exist before the schema that captures their constraints exists. So, yes, the example you present is valid with regard to namespaces. (In other words, you can read and apply the XML namespaces spec without having heard of the XML schema spec.) With regard to your a, b, and c, I can't see how a==1, b==0, and c==1 is valid (if the default namespace is considered prefixed as stated). I may be missing something though. HTH, Pete. -- ============================================= Pete Cordell Tech-Know-Ware Ltd for XML Schema to C++ data binding visit http://www.codalogic.com/lmx/ ============================================= ----- Original Message ----- From: "Shlomo Yona" <S.Yona@F...> To: "Shlomo Yona" <S.Yona@F...>; <xml-dev@l...> Sent: Wednesday, May 30, 2007 7:08 AM Subject: RE: namespaces support decision table Hello, One addition to this: if I have no XML Schema does this mean that the ``a column is meaningless? For example If I have no schema, is the following OK, with regards to namespaces, or not? <a> <b/> <b xmlns=foo/> </a> <a> and the first <b> are not qualified, and the second <b> is qualified. Does this make sense? I mean, if theres no schema, does it means that every name is unqualified unless it is qualified explicitly qualified? (this sorts of sounds like a tautology ) Shlomo. ________________________________ From: Shlomo Yona [mailto:S.Yona@f...] Sent: ã 30 îàé 2007 08:33 To: xml-dev@l... Subject: namespaces support decision table Hello, I am trying to understand the impact of schema hints and evidence from XML documents on the proper handling of namespaces. Here is what I came up with a. Name is qualified in XML Schema: yes/no b. Name is prefixed in XML document: yes/no (default namespace is also considered as a prefix, the empty string prefix, for this discussions sake) c. Prefix for name is defined in XML document: yes/no There are 8 possibilities for the above criterions. An error should be issued (not necessarily same error in all cases) in all cases except for the following three: a==b==c==0 a==1 b==0 c==1 a==1 b==1 c==1 My question is, are these indeed all possibilities? Are there other factors that need to be considered? Is my understanding correct? Thanks. Shlomo.
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