[ http://issues.apache.org/jira/browse/XERCESC-1390?page=history ]
David Bertoni updated XERCESC-1390:
-----------------------------------
Attachment: patch.txt
> Regular expressions with unions do not work properly with replacing and
> tokenizing.
> -----------------------------------------------------------------------------------
>
> Key: XERCESC-1390
> URL: http://issues.apache.org/jira/browse/XERCESC-1390
> Project: Xerces-C++
> Type: Bug
> Components: Utilities
> Versions: 2.6.0
> Reporter: David Bertoni
> Priority: Critical
> Attachments: patch.txt
>
> Consider the following regular expression:
> "(ab) | (a)"
> with the following input string:
> "abracadabra"
> If you use an instance the RegularExpression class to replace any matching
> substrings with the empty string, the result should be the following string:
> "rcdr"
> Instead, just the last "a" in the string is replaced:
> "abracadabr"
> If you use the same RegularExpression instance to tokenize the expression,
> the result should be the following set of strings:
> ""
> "r"
> "c"
> "d"
> "r"
> ""
> Instead, the result is
> "abracadabr"
> ""
> I will attach a proposed patch, but I don't know this code well, so it would
> be great if someone could review it.
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