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Lucene Analyzers README file
This project provides pre-compiled version of the Snowball stemmers,
now located at https://github.com/snowballstem/snowball/tree/53739a805cfa6c77ff8496dc711dc1c106d987c1 (GitHub),
together with classes integrating them with the Lucene search engine.
The snowball tree needs patches applied to properly generate efficient code for lucene.
You can regenerate everything with 'gradlew snowball'
Refer to gradle/generation/snowball* files in the build for upgrading snowball.
IMPORTANT NOTICE ON BACKWARDS COMPATIBILITY!
An index created using the Snowball module in Lucene 2.3.2 and below
might not be compatible with the Snowball module in Lucene 2.4 or greater.
For more information about this issue see:
https://issues.apache.org/jira/browse/LUCENE-1142
For more information on Snowball, see:
http://snowball.tartarus.org/