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Posted to c-dev@xerces.apache.org by Dave Broudy <da...@broudy.net> on 2003/06/30 20:37:00 UTC

Internal Entities (in DOCTYPE) and XML Schema

Hello all,

I have a question about validating a document that contains both a DOCTYPE
and an XML Schema. My scenerio is that I'm producing the document in C++,
and the consumer (which I have no control over) uses Java (xerces-j).
It is convenient for me to use a couple of internal entities, but the
consumer program recently switched from a DOCTYPE to an XML Schema.

So, enough background. Aside from using both a complete DTD and a complete
XML Schema, is there anyway to do have a document like the one below? This
validates with xerces-c (using sample program SAX2Count), but not with
xerces-j (using sample program sax.Counter -n -f -s -v). Which is
right?

My reading of the XML spec says that in a well formed document a
doctypedecl is optional, and if it's included, it's allowed to contain
only '<!DOCTYPE entschema>'. xerces-j also gives an error in this case.

http://www.w3.org/TR/REC-xml#NT-prolog

It's been a long week, so maybe I'm reading something wrong.

Many thanks,
Dave

========================================
<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE entschema [
  <!ENTITY replace "my replacement text">
]>

<entschema
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="entschema.xsd">

  <text>&replace; here</text>
</entschema>

========================================
<?xml version="1.0" encoding="UTF-8"?>

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">

	<xs:element name="entschema">
		<xs:complexType>
			<xs:sequence>
				<xs:element name="text" type="xs:string"/>
			</xs:sequence>
		</xs:complexType>
	</xs:element>

</xs:schema>

Dave Broudy		dave@broudy.net



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Re: Internal Entities (in DOCTYPE) and XML Schema

Posted by George Cristian Bina <ge...@sync.ro>.
Hi Dave,

Have a look at
    http://java.sun.com/xml/jaxp/change-requests-11.html

Shortly, if you add something like:
    parser.setProperty(
        "http://java.sun.com/xml/jaxp/properties/schemaLanguage",
        "http://www.w3.org/2001/XMLSchema"
      );
The validation will be performed against the specified schema. I tried your
sample with this setting and Xerces reports it valid.

Best Regards,
 George
-------------------------------------------------------------
George Cristian Bina mailto:george@sync.ro
COO - sync.ro
Phone  +40-(0)251-461480, +40-(0)251-461481
Fax    +40-(0)251-461482
Mobile +40-(0)723-224067
SyncRO Soft srl, Bd N. Titulescu 170, Craiova, 1100 - Romania
http://www.sync.ro
<oXygen/> XML Editor - http://www.oxygenxml.com/


----- Original Message -----
From: "Dave Broudy" <da...@broudy.net>
To: <xe...@xml.apache.org>; <xe...@xml.apache.org>
Sent: Monday, June 30, 2003 9:37 PM
Subject: Internal Entities (in DOCTYPE) and XML Schema


> Hello all,
>
> I have a question about validating a document that contains both a DOCTYPE
> and an XML Schema. My scenerio is that I'm producing the document in C++,
> and the consumer (which I have no control over) uses Java (xerces-j).
> It is convenient for me to use a couple of internal entities, but the
> consumer program recently switched from a DOCTYPE to an XML Schema.
>
> So, enough background. Aside from using both a complete DTD and a complete
> XML Schema, is there anyway to do have a document like the one below? This
> validates with xerces-c (using sample program SAX2Count), but not with
> xerces-j (using sample program sax.Counter -n -f -s -v). Which is
> right?
>
> My reading of the XML spec says that in a well formed document a
> doctypedecl is optional, and if it's included, it's allowed to contain
> only '<!DOCTYPE entschema>'. xerces-j also gives an error in this case.
>
> http://www.w3.org/TR/REC-xml#NT-prolog
>
> It's been a long week, so maybe I'm reading something wrong.
>
> Many thanks,
> Dave
>
> ========================================
> <?xml version="1.0" encoding="UTF-8"?>
>
> <!DOCTYPE entschema [
>   <!ENTITY replace "my replacement text">
> ]>
>
> <entschema
>     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>     xsi:noNamespaceSchemaLocation="entschema.xsd">
>
>   <text>&replace; here</text>
> </entschema>
>
> ========================================
> <?xml version="1.0" encoding="UTF-8"?>
>
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
>
> <xs:element name="entschema">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="text" type="xs:string"/>
> </xs:sequence>
> </xs:complexType>
> </xs:element>
>
> </xs:schema>
>
> Dave Broudy dave@broudy.net
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: xerces-j-user-unsubscribe@xml.apache.org
> For additional commands, e-mail: xerces-j-user-help@xml.apache.org
>


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