Schema Location Strategy

[Nestel, Frank]

This is a repost of my own question, probably it was to
long. I want to validate a XML against a schema but 
fail to succeed.

Why does the following top level element

        <f:fdpd 
            xmlns:f="http://www.spieleck.de/fdpd";
            xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' 
            xsi:schemaLocation='http://www.spieleck.de/fdpd fdpd.xsd'

cause Xerces 1.4.0 to throw a 

        http://www.spieleck.de/fdpd grammar not found

though the XML and the XSL are both located in the same directory.

Thank you very much,
Frank

> -----Urspr�ngliche Nachricht-----
> Von: Nestel, Frank [mailto:[EMAIL PROTECTED] 
> Gesendet am: Freitag, 15. Juni 2001 11:35
> An: '[EMAIL PROTECTED]'
> Betreff: Schema Location Strategy
> 
> Hi,
> 
> I just realized I do not understand the Schema location strategy
> used by Xalan 1.4.0:
> 
> I have a document which contains elements located in two namespaces:
> "" and "http://www.spieleck.de/fdpd"; with a start like
> 
>       <?xml version="1.0" encoding="ISO-8859-1"?>
>       <!DOCTYPE f:fdpd [
>       <!ENTITY nbsp   "&#160;">
>       <!ENTITY copy   "&#x00A9;">
>       <!ENTITY auml   "&#x00E4;"> <!-- LATIN SMALL LETTER A 
> WITH DIAERESIS
> -->
>       <!ENTITY Auml   "&#x00C4;"> <!-- LATIN CAPITAL LETTER A WITH
> DIAERESIS -->
>       <!ENTITY ouml   "&#x00F6;"> <!-- LATIN SMALL LETTER O 
> WITH DIAERESIS
> -->
>       <!ENTITY Ouml   "&#x00D6;"> <!-- LATIN CAPITAL LETTER O WITH
> DIAERESIS -->
>       <!ENTITY szlig  "&#x00DF;"> <!-- LATIN SMALL LETTER SHARP S -->
>       <!ENTITY uuml   "&#x00FC;"> <!-- LATIN SMALL LETTER U 
> WITH DIAERESIS
> -->
>       <!ENTITY Uuml   "&#x00DC;"> <!-- LATIN CAPITAL LETTER U WITH
> DIAERESIS -->
>       ]>
>       <f:fdpd version="1.0"
>           xmlns:f="http://www.spieleck.de/fdpd";
>           xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' 
>           xsi:schemaLocation='http://www.spieleck.de/fdpd fdpd.xsd'
>           >
> 
> The document shall be validated against a schema located in 
> the same local
> filesystem in a file named "fdpd.xsd"
> 
> Now, if I augment the initial element to 
> 
>       <f:fdpd version="1.0"
>           xmlns:f="http://www.spieleck.de/fdpd";
>           xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' 
>           xsi:schemaLocation='http://www.spieleck.de/fdpd fdpd.xsd'
>           >
> 
> Now using an validating instance of Xerces I get the error
> 
>       http://www.spieleck.de/fdpd grammar not found
> 
> Same happens if I use
> 
>       <f:fdpd version="1.0"
>           xmlns:f="http://www.spieleck.de/fdpd";
>           xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' 
>           xsi:noNamespaceSchemaLocation='fdpd.xsd'
>           >
> 
> If I change first element to 
> 
>       <f:fdpd version="1.0"
>           xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' 
>           xsi:schemaLocation='http://www.spieleck.de/fdpd fdpd.xsd'
>           >
> 
> I get no message about missing grammar file, but of course I havent
> declared my namespace and all is wrong. Especially I do not 
> think Xerces
> is reading the fdpd.xsd file since when I render it syntactical wrong,
> I do not get any error message about the schema.
> 
> I am very confused right now :-(
> 
> Thank you,
> Frank
> 
> 
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