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Re: Accepting non-deterministic content models

• From: "Thomas B. Passin" <tpassin@h...>
• To: xml-dev@l...
• Date: Fri, 06 Jul 2001 20:13:19 -0400

I made a dtd for this and tried it out.  Architag XRay and XML Cooktop both
liked it, rxp in validating mode rejected it as non-deterministic but
accepted it when not validating, xmlproc and the validating version of
xmlproc both accepted it.

Here's the test file:

<!DOCTYPE doc [
<!ELEMENT doc (a|b|(a,b))>
<!ELEMENT a EMPTY>
<!ELEMENT b EMPTY>
]>
<doc>
<a/><b/>
</doc>

Cheers,

Tom P

[Roger L. Costello]

> The following element, test, has a non-deterministic content model:
>
> <xsd:element name="test">
>     <xsd:complexType>
>         <xsd:choice>
>             <xsd:element name="a" type="xsd:string"/>
>             <xsd:element name="b" type="xsd:string"/>
>             <xsd:sequence>
>                <xsd:element name="a" type="xsd:string"/>
>                <xsd:element name="b" type="xsd:string"/>
>             </xsd:sequence>
>         </xsd:choice>
>     </xsd:complexType>
> </xsd:element>
>
> XML Spy 4.0b, xerces 1.4.1 both accept this as valid.
>
> xsv, turbo XML 2.2, and the IBM SQL all generate an error, indicating
> that the element, test, has a non-deterministic content model.
>

• References:
  • Accepting non-deterministic content models
    • From: "Roger L. Costello" <costello@m...>

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