[jira] [Created] (UIMA-2980) Add concept of optional annotations in Ruta for empty wildcard matches

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

Peter Klügl created UIMA-2980:
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             Summary: Add concept of optional annotations in Ruta for empty wildcard matches
                 Key: UIMA-2980
                 URL: https://issues.apache.org/jira/browse/UIMA-2980
             Project: UIMA
          Issue Type: Improvement
          Components: ruta
    Affects Versions: 2.0.2ruta
            Reporter: Peter Klügl
            Assignee: Peter Klügl
            Priority: Minor
             Fix For: 2.0.2ruta


Add concept of optional annotations in Ruta: wildcards sometimes need to match on invisible parts of the document, e.g., FirstToken # SecondToken;

There should not be an annotation for the wildcard match, but it needed for possible conditions on the element. If there is a matched annotation, then possible mark actions use the wrong offsets for new annotations. Use a new optional annotation that will be filtered in the rule match.

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