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Re: XMLSchema.xsd question

From: Stefan Wachter <Stefan.Wachter@gmx.de>
Date: Fri, 25 Oct 2002 18:12:27 +0200 (MEST)
To: David.Cantrell@Gunter.AF.mil;xmlschema-dev@w3.org;;
Message-ID: <10668.1035562347@www20.gmx.net>

Hi Dave,

the schema for schema (XMLSchema.xsd) is not meant to be used for validating
other schemas directly. The definitions contained in the schema for schemas
are built-in into validating parsers.

There was an announcement on this list some week ago of a tool from IBM to
analyze schemas. Maybe you just use that.


> Hi all,
> I just subscribed to this list, and have seen some related info in the
> archives, but nothing quite answered my question.
> I am pretty new to the whole schema thing and want to make sure I get
> things
> right. I want to create a simple schema validator using Windows Scripting
> and MSXML 4.0 that I can use locally on our systems here to validate the
> schema we are starting to create.
> I've written a very straightforward one that takes a schema file and
> validates it against XMLSchema.xsd found at
> <http://www.w3.org/2001/XMLSchema.xsd>.
> Now, I've used both the URI reference as well as downloaded the
> XMLSchema.xsd and XMLSchema.dtd files, but I keep getting this really
> bizarre error:
>     file: //c:/usr/bin/XMLSchema.xsd#schema[1]/simpleType[position() = 22
> and @name='hexBinary']/restriction[1]
>     WhiteSpace constraining facet is prohibited.
> This apparently refers to the simpleType "hexBinary" starting at line
> 1669.
> At line 1688 is the restriction that fails:
>     <xs:whiteSpace value="collapse" fixed="true" 
>       id="hexBinary.whiteSpace"/>
> Is this restriction vital to the schema? Should it be removed? Or am I
> doing
> something wrong?
> FYI the test case was validating the schema against itself.
> Thanks in advance,
> -dave
Received on Friday, 25 October 2002 12:12:49 UTC

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