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https://issues.apache.org/jira/browse/UIMA-3927?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Peter Klügl reassigned UIMA-3927:
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Assignee: Peter Klügl
> Problem with optional quantifiers and starting rule element annotation
> ----------------------------------------------------------------------
>
> Key: UIMA-3927
> URL: https://issues.apache.org/jira/browse/UIMA-3927
> Project: UIMA
> Issue Type: Bug
> Components: ruta
> Affects Versions: 2.2.0ruta
> Reporter: Prokopis Prokopidis
> Assignee: Peter Klügl
>
> Hi,
> As the Ruta documentation mentions, "writing rules that contain a first rule
> element with an optional quantifier is discouraged and will result in
> ignoring the optional attribute of the quantifier." A solution for overcoming
> this is to declare a rule element as a starting rule element by adding “@”
> directly in front of it. Thus, I am using ruta rules like
> {code}
> Token??{REGEXP(Token.posTag.value, "At")} // Article
> Token??{REGEXP(Token.posTag.value, "Aj")} // Adjective
> @Token{REGEXP(Token.posTag.value, "No")->MARK(Chunk, 1,3)}; // Noun
> {code}
> to mark nouns and optional pre-modifiers before them as chunks
> However, the rule seems to match only Adj Noun sequences and not to match
> input like:
> {code}
> anArt|At anAdj|Aj aNoun|No
> {code}
> Thanks for looking into this.
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