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From "Thilo Goetz (JIRA)" <uima-...@incubator.apache.org>
Subject [jira] Resolved: (UIMA-1264) Regex annotator goes into infinite loop on patterns that match the empty string
Date Wed, 14 Jan 2009 17:00:03 GMT

     [ https://issues.apache.org/jira/browse/UIMA-1264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Thilo Goetz resolved UIMA-1264.
-------------------------------

    Resolution: Fixed
      Assignee: Michael Baessler  (was: Thilo Goetz)

Fixed, test case added.  Regular expressions are such fun!  I had no idea that the empty string
was a valid regex.

Michael, please check what I did.  Thanks.


> Regex annotator goes into infinite loop on patterns that match the empty string
> -------------------------------------------------------------------------------
>
>                 Key: UIMA-1264
>                 URL: https://issues.apache.org/jira/browse/UIMA-1264
>             Project: UIMA
>          Issue Type: Bug
>          Components: Sandbox-RegexAnnotator
>    Affects Versions: 2.2.2
>            Reporter: Thilo Goetz
>            Assignee: Michael Baessler
>             Fix For: 2.3S
>
>
> When a regex matches the empty string (e.g., a* matching against bbbb), and the match
strategy is "matchAll", the regex annotator goes into an infinite loop.  

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