DO NOT REPLY [Bug 17417] New: - Regex {min,max} with min > max not rejected

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=17417

Regex {min,max} with min > max not rejected

           Summary: Regex {min,max} with min > max not rejected
           Product: Xerces2-J
           Version: 2.3.0
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: XML Schema datatypes
        AssignedTo: xerces-j-dev@xml.apache.org
        ReportedBy: jjc@jclark.com


Xerces doesn't reject uses of {min,max} where min > max.  For example, this is
accepted:

<xs:schema xmlns:xs='http://www.w3.org/2001/XMLSchema'>
 <xs:element name="test">
  <xs:simpleType>
   <xs:restriction base="xs:string">
     <xs:pattern value="x{2,1}"/>
   </xs:restriction>
  </xs:simpleType>
 </xs:element>
</xs:schema>

The Rec isn't as explicit as it might be that this is illegal, but the table
header says:

"For all �atom�s S and non-negative integers n, m such that ***n <= m***, valid
�piece�s R are:"

So I think it is clear that this is illegal.

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