[LUCENE-2995] factor out a shared spellchecking module

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0-ALPHA
• Lucene Fields: New, Patch Available
• Assignee: Robert Muir
• Reporter: Robert Muir
• Created: 26/Mar/11 23:02
• Updated: 28/Aug/22 12:43
• Resolved: 23/May/11 20:31

Description

In lucene's contrib we have spellchecking support (index-based spellchecker, directspellchecker, etc).
we also have some things like pluggable comparators.

In solr we have auto-suggest support (with two implementations it looks like), some good utilities like HighFrequencyDictionary, etc.

I think spellchecking is really important... google has upped the ante to what users expect.
So I propose we combine all this stuff into a shared modules/spellchecker, which will make it easier
to refactor and improve the quality.

Issue Links

• is related to: SOLR-2378 FST-based Lookup (suggestions) for prefix matches.