Lucene-based rule evaluation: support "\d" in regex (with the old and slow Lucene class, though)
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Lucene-based rule evaluation: consider case-sensitivity for inflected terms
Lucene-based rule evaluation: negated tokens always need to be skipped
Lucene-based rule evaluation: don't produce wrong results when non-capturing groups "(?:...)" are used
Lucene-based rule evaluation: use fast regex query for "\d" by replacing it by "[0-9]"
Lucene-based rule evaluation: ignore tokens with minOccurrence == 0