XML Torture Test: Parsers Fail

Elliotte Rusty Harold elharo at metalab.unc.edu
Wed Apr 7 05:37:32 BST 1999

At 1:58 PM -0600 4/6/99, andyclar at us.ibm.com wrote:
>Elliotte Rusty Harold wrote:
>> >>Without intending to do so, I have devised an XML document that exposes
>> >>many problems in almost all XML validating parsers and non-validating
>> >>parsers that resolve external entity references.  You will find this
>> >>torture test at
>> http://metalab.unc.edu/xml/examples/players/index.xml
>I tried recreating the failures of Elliote's torture test using
>XML4J 2.0.4 and was not able to produce a failure. I tried the
>validating SAX, validating DOM, and TX-compatibility parsers
>and they all responded with no errors or warnings.
>After having done some additional "validity" checks in our
>current internal build of the parser, the XML4J parser now
>reports the following:
>  [Warning] index.xml:7:3: Element, "PLAYER", refers to undeclared element,
> "SV", in content model
>  [Error] AllenWatson.xml:10:13: Element, "SV" is not declared in the DTD

I've fixed the undeclared SV element in the latest version. I introduced
that problem while fixing the non-deterministic content model problem
yesterday. XJParse 1.1.14 can now handle this document from the Web site
but not when the files are loaded from the local hard drive where it still
reports AllenWatson.xml not found.  XJParse 2.0.4 seems to work from both
the local hard drive and the Web site, but it's hard to tell since it
doesn't report as much as XJParse 1.1.14.

| Elliotte Rusty Harold | elharo at metalab.unc.edu | Writer/Programmer |
|        XML: Extensible Markup Language (IDG Books 1998)            |
|   http://www.amazon.com/exec/obidos/ISBN=0764531999/cafeaulaitA/   |
|  Read Cafe au Lait for Java News:  http://sunsite.unc.edu/javafaq/ |
|  Read Cafe con Leche for XML News: http://sunsite.unc.edu/xml/     |

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