[jira] [Assigned] (UIMA-6404) Ruta: @ with quantifier ignores matches

["Peter Klügl (Jira)" <de...@uima.apache.org>]

     [ https://issues.apache.org/jira/browse/UIMA-6404?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Peter Klügl reassigned UIMA-6404:
---------------------------------

    Assignee: Peter Klügl

> Ruta: @ with quantifier ignores matches
> ---------------------------------------
>
>                 Key: UIMA-6404
>                 URL: https://issues.apache.org/jira/browse/UIMA-6404
>             Project: UIMA
>          Issue Type: Bug
>          Components: Ruta
>    Affects Versions: 2.8.1ruta, 3.1.0ruta
>            Reporter: Michael Stenger
>            Assignee: Peter Klügl
>            Priority: Minor
>             Fix For: 2.9.0ruta, 3.1.1ruta
>
>
> Hi.
> it seems combining the start anchor with a (minmax) quantifier causes the interpreter to miss what I would consider matches in cases where @ is put with inner rule elements like so:
> {code:java}
> (W @W W)[2,2];
> // or
> (W @W W W)[3,4];
> // or
> (W W @W W)[2,3];
> {code}
> On the other hand,
> {code:java}
> (W W W w)[2,2];
> {code}
> would match passages as expected. I suspect this is caused by the changed matching order within the composed rule element when it is applied multiple times.
> Minimal Example:
> Script:
> {noformat}
> (W @W W W)[2,2]{-> T1};
> (W W @W W)[2,2]{-> T2};{noformat}
> Text:
> {noformat}
> omega alpha beta gamma omega alpha beta gamma omega alpha{noformat}
> Expected matches:
>  * T1, T2: omega alpha beta gamma omega alpha beta gamma
>  * T1, T2: alpha beta gamma omega alpha beta gamma omega
>  * T1, T2: beta gamma omega alpha beta gamma omega alpha
> Actual matches:
>  * T2: beta gamma omega alpha beta gamma omega alpha
> Or, since I could not find anything on the intended behaviour in such cases in the Guide, the broader question is how the interpreter is supposed to handle @ in a composed rule element that is also quantified. E.g. is it supposed to ignore the anchor from the second application (on the same match) onwards?
> Best, Michael



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