[jira] [Created] (UIMA-3927) Problem with optional quantifiers and starting rule element annotation

[Prokopis Prokopidis (JIRA)]

Prokopis Prokopidis created UIMA-3927:
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             Summary: 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


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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