[LUCENE-9220] Upgrade Snowball version to 2.0

• Type: Wish
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 9.0
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Nguyen Minh Gia Huy
• Created: 12/Feb/20 09:52
• Updated: 28/Aug/22 15:58
• Resolved: 17/Feb/20 17:39

Description

When working with Snowball-based stemmers, I realized that Lucene is currently using a pre-compiled version of Snowball, that seems from 12 years ago: https://github.com/snowballstem/snowball/tree/e103b5c257383ee94a96e7fc58cab3c567bf079b

Snowball has just released v2.0 in 10/2019 with many improvements, new supported languages ( Arabic, Indonesian…) and new features ( stringdef notation for Unicode codepoints…). Details of the changes could be found here: https://github.com/snowballstem/snowball/blob/master/NEWS. I think these changes of Snowball could give a promising positive impact on Lucene.

I wonder when Lucene should upgrade Snowball to the latest version ( v2.0).

Issue Links

• links to: GitHub Pull Request #1262