[XERCESJ-1265] E2-67 not fully implemented; rejecting regular expressions like [-], [^-]

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.9.0
• Fix Version/s: 2.9.1
• Component/s: XML Schema 1.0 Structures
• Assignee: Unassigned
• Reporter: Michael Glavassevich
• Created: 30/Aug/07 15:31
• Updated: 31/Aug/07 14:28
• Resolved: 31/Aug/07 14:28

Description

Current behaviour:

[b-a], Expected: Invalid, Actual: Invalid, Reason: backwards
[--+], Expected: Invalid, Actual: Invalid, Reason: '-' can't be used in a s-e range
[+--], Expected: Invalid, Actual: Invalid, Reason: '-' can't be used in a s-e range
[-+], Expected: Valid, Actual: Valid, Reason: '-' is at the beginning of a positive character range (PCR)
[+-], Expected: Valid, Actual: Valid, Reason: '-' is at the end of a (PCR)
[^-+], Expected: Valid, Actual: Valid, Reason: '-' is at the beginning of a (PCR)
[^+-], Expected: Valid, Actual: Valid, Reason: '-' is at the end of a (PCR)
[-], Expected: Valid, Actual: Invalid, Reason: '-' is at the beginning/end of a (PCR)
[^-], Expected: Valid, Actual: Invalid, Reason: '-' is at the beginning/end of a (PCR)
[--], Expected: Valid, Actual: Invalid, Reason: '-' is at the beginning and end of a (PCR)
[^--], Expected: Valid, Actual: Invalid, Reason: '-' is at the beginning and end of a (PCR)
[---], Expected: Invalid, Actual: Invalid, Reason: '-' can't be used in a s-e range

The current version of Xerces in SVN gives the wrong answer for 4 cases.

This was originally reported as a bug against Eclipse XSD. See https://bugs.eclipse.org/bugs/show_bug.cgi?id=197103 for more details.