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Posted to j-dev@xerces.apache.org by "Michael Glavassevich (JIRA)" <xe...@xml.apache.org> on 2006/11/20 23:24:06 UTC
[jira] Updated: (XERCESJ-1061) Regex "$" and "^" characters treated
as special chars in conflict with XML Schema spec
[ http://issues.apache.org/jira/browse/XERCESJ-1061?page=all ]
Michael Glavassevich updated XERCESJ-1061:
------------------------------------------
Fix Version/s: 2.9.0
> Regex "$" and "^" characters treated as special chars in conflict with XML Schema spec
> --------------------------------------------------------------------------------------
>
> Key: XERCESJ-1061
> URL: http://issues.apache.org/jira/browse/XERCESJ-1061
> Project: Xerces2-J
> Issue Type: Bug
> Components: XML Schema datatypes
> Affects Versions: 2.6.2
> Environment: Test Environment: Win XP SP1, JDK v1.5.0_02, Xerces v2.6.2 (manually used; overrides any other, if packaged with the JDK)
> Reporter: Darien Kindlund
> Assigned To: Michael Glavassevich
> Priority: Minor
> Fix For: 2.9.0
>
> Attachments: RegexParser.diff, regexparser.java
>
>
> Xerces rejects the following schema:
> <xs:schema xmlns:xs='http://www.w3.org/2001/XMLSchema'>
> <xs:element name="test">
> <xs:simpleType>
> <xs:restriction base="xs:string">
> <xs:pattern value="$?[0-9]+\.[0-9]{2}" />
> </xs:restriction>
> </xs:simpleType>
> </xs:element>
> </xs:schema>
> The code within org.apache.xerces.impl.xpath.regex.RegexParser throws a parser exception over the use of the "$?" characters, unless the "$" character is escaped. For example, this works:
> <xs:pattern value="\$?[0-9]+\.[0-9]{2}" />
> The fundamental problem is that the Xerces RegexParser code does NOT follow the XML Schema specification, as defined by this URL:
> http://www.w3.org/TR/2000/WD-xmlschema-2-20000407/#dt-metac
> Specifically, the XML Schema specification does NOT give special meaning to the "$" and "^" characters, whereas the RegexParser code seems to indicate that these characters have the normal, standard UNIX definitions of "end-of-line" and "start-of-line" anchors respectively.
> Regards,
> --
> Darien Kindlund
> The MITRE Corporation
> InfoSec Engr / Scientist, Sr.
> kindlund@mitre.org
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