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Posted to dev@uima.apache.org by "Thilo Goetz (JIRA)" <ui...@incubator.apache.org> on 2009/01/14 17:35:59 UTC

[jira] Created: (UIMA-1264) Regex annotator goes into infinite loop on patterns that match the empty string

Regex annotator goes into infinite loop on patterns that match the empty string
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                 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: Thilo Goetz
             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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[jira] Closed: (UIMA-1264) Regex annotator goes into infinite loop on patterns that match the empty string

Posted by "Michael Baessler (JIRA)" <ui...@incubator.apache.org>.
     [ https://issues.apache.org/jira/browse/UIMA-1264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Baessler closed UIMA-1264.
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Changes looks good to me.

Thanks for the fix, I verified the defect and closed it.

> 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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[jira] Resolved: (UIMA-1264) Regex annotator goes into infinite loop on patterns that match the empty string

Posted by "Thilo Goetz (JIRA)" <ui...@incubator.apache.org>.
     [ https://issues.apache.org/jira/browse/UIMA-1264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thilo Goetz resolved UIMA-1264.
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    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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You can reply to this email to add a comment to the issue online.