[LUCENE-5483] hunspell inaccuracies

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.8, 6.0
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Robert Muir
• Created: 01/Mar/14 22:50
• Updated: 28/Aug/22 14:01
• Resolved: 02/Mar/14 02:09

Description

I added a lot of tests and greatly refined this algorithm to match correct hunspell behavior. there were many bugs:

• recursionLimit was a hack: this is actually specified by the dictionary to be twofold suffix + one prefix, or if COMPLEXPREFIXES is specified, twofold prefix + one suffix. This patch removes cursion limit
• recursion didn't work correctly: it didnt validate multi-level continuation classes correctly.
• add COMPLEXPREFIXES support.
• probably other minor bugs fixed in the process.

I validated all testing against hunspell