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   Re: [xml-dev] Re: [ubl-dev] UBL 2.0 and Schema Extensibility

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  • To: UBL-Dev <ubl-dev@lists.oasis-open.org>, XML-Dev Mailing list <xml-dev@lists.xml.org>
  • Subject: Re: [xml-dev] Re: [ubl-dev] UBL 2.0 and Schema Extensibility
  • From: "G. Ken Holman" <gkholman@CraneSoftwrights.com>
  • Date: Tue, 23 May 2006 10:24:48 +0200
  • In-reply-to: <88aed1ea0605171620p7749c1f5o91b00215ad09ea52@mail.gmail.com>
  • References: <20060516065830.dc066b1d4d2e0a1a65719ae85a8071e6.0fcf613037.wbe@email.secureserver.net><><><88aed1ea0605160925x3be76eafv41ec6b632f01f47f@mail.gmail.com><><88aed1ea0605161412n7e447227yd78f3a049e99c43@mail.gmail.com><><88aed1ea0605171620p7749c1f5o91b00215ad09ea52@mail.gmail.com>

At 2006-05-18 00:20 +0100, Fraser Goffin wrote:
>The example schema fragment that you pointed at :-
>     <xs:choice minOccurs="0" maxOccurs="unbounded">
>       <xs:any namespace="##other" processContents="skip"/>
>       <xs:any namespace="##local" processContents="skip"/>
>     </xs:choice>
>looks OK, but XML Spy and MSXML 4 report it as non deterministic ?

Below is the post that I made last week to the W3C Schema mail list 
... I still have not seen any response to the post, so I still do not 
know the answer to the question.

The UBL TC is meeting face-to-face this week so we need help as soon 
as possible ... I hoping that someone on the UBL-Dev or XML-Dev list 
might offer comments on the situation described below.

Thanks again for bringing this up!

. . . . . . . . . . . . . Ken

Date: Thu, 18 May 2006 09:35:26 +0200
To: xmlschema-dev@w3.org
From: "G. Ken Holman" <gkholman@CraneSoftwrights.com>
Subject: Question of reports of non-determinism

Hello all,

Below is transcript of an extended example from our work in UBL:


I've been using xjparse invoking Xerces in order to test examples and 
experiments for the TC.

In the example below, I have modeled an extension point named 
LineItemExtension into which I wish to allow child elements from any 
other namespace and from no namespace.

I am informed that some tools (not Xerces below) report that ##other 
conflicts with ##local in that it is non-deterministic.  Yet if I 
take out ##local the example below fails in Xerces because I've 
included an element in no namespace, so Xerces is implementing "other 
namespace" as "other non-null namespace", while the other tools are 
implementing "other namespace" as "other namespace including no namespace".

Does ##other imply ##local or does ##other require there be a target 
namespace that is different in the particle?  If ##other implies 
##local then Xerces is wrong ... otherwise these other tools are wrong.

I'm looking to advise the TC correctly in this matter, so any help 
would be greatly appreciated.


. . . . . . . . . Ken

t:\fraser>type exublorder2.xsd
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"; 
   <xs:element name="Order">
         <xs:element ref="u:OrderNumber"/>
         <xs:element maxOccurs="unbounded" ref="u:LineItem"/>
         <xs:element ref="u:TotalAmount"/>
   <xs:element name="OrderNumber" type="xs:string"/>
   <xs:element name="LineItem">
         <xs:element ref="u:Description"/>
         <xs:element ref="u:PriceAmount"/>
         <xs:element minOccurs="0" ref="u:LineItemExtension"/>
   <xs:element name="Description" type="xs:string"/>
   <xs:element name="PriceAmount" type="xs:string"/>
   <xs:element name="LineItemExtension" type="u:any-non-UBL"/>
   <xs:element name="TotalAmount" type="xs:string"/>
   <xs:complexType name="any-non-UBL">
     <xs:choice minOccurs="0" maxOccurs="unbounded">
       <xs:any namespace="##other" processContents="skip" 
minOccurs="0" maxOccurs="unbounded"/>
       <xs:any namespace="##local" processContents="skip" 
minOccurs="0" maxOccurs="unbounded"/>

t:\fraser>type exaeroorder2.xml
<?xml version="1.0" encoding="utf-8"?>
<Order xmlns="urn:oasis:names:draft:ubl:schema:xsd:Order-2"
     <Description>747 Repair Kit</Description>
           <a:Description>Starboard wing</a:Description>
           <a:Description>Port wing</a:Description>
     <Description>DC3 Repair Kit</Description>
           <a:Description>Rubber band</a:Description>
       <hello xmlns="">
t:\fraser>xjparse -S exublorder2.xsd exaeroorder2.xml
No validation errors.

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