Apache UIMA Ruta Guide and Reference - Apache UIMA - The ...

Matched: small small Big
Matched: small Big
Matched: Big
+ Plus Greedy
The last match “Big” can be problematic using different types if the rule starts matching with the
first rule element.
2.3.3. + Plus Greedy
The Plus Greedy quantifier needs to match on at least one annotation. Please mind that a rule
element after a rule element with a Plus Greedy quantifier matches and evaluates on different
conditions. Examples:
Input: 123 456 small small Big
Rule: SW+
Matched: small small
Matched: small
2.3.4. +? Plus Reluctant
The Plus Reluctant quantifier has to match on at least one annotation in order to evaluate true, but
stops when the next rule element is able to match on this annotation. Examples:
Input: 123 456 small small Big
Rule: W+? CW
Matched: small small Big
Matched: small Big
2.3.5. ? Question Greedy
The Question Greedy quantifier matches optionally on an annotation and therefore always
evaluates true. Examples:
Input: 123 456 small Big small Big
Rule: SW CW? SW
Matched: small Big small
2.3.6. ?? Question Reluctant
The Question Reluctant quantifier matches optionally on an annotation, if the next rule element
does not match on the same annotation and therefore always evaluates true. Examples:
Input: 123 456 small Big small Big
Rule: SW CW?? SW
Matched: small Big small
2.3.7. [x,y] Min Max Greedy
The Min Max Greedy quantifier has to match at least x and at most y annotations of its rule element
to evaluate true. Examples:
Input: 123 456 small Big small Big
UIMA Ruta Version 2.0.1 Apache UIMA Ruta Language 23