Apache Lucene QueryParsers.
  This module provides a number of query parsers:
  - {@linkplain org.apache.lucene.queryparser.flexible       flexible query parser}
  
- {@linkplain org.apache.lucene.queryparser.classic        classic query parser}
  
- {@linkplain org.apache.lucene.queryparser.complexPhrase  complex phrase query parser}
  
- {@linkplain org.apache.lucene.queryparser.ext extendable query parser}
  
- {@linkplain org.apache.lucene.queryparser.surround       surround query parser (span queries)}
  
- {@linkplain org.apache.lucene.queryparser.xml            query parser building Query objects from XML}
  If you're new to query parsers, the {@linkplain org.apache.lucene.queryparser.flexible flexible query parser}'s
  {@link org.apache.lucene.queryparser.flexible.standard.StandardQueryParser} is probably a good place to start.