Namgyu Kim created LUCENE-8812:
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Summary: add KoreanNumberFilter to Nori(Korean) Analyzer
Key: LUCENE-8812
URL: https://issues.apache.org/jira/browse/LUCENE-8812
Project: Lucene - Core
Issue Type: New Feature
Reporter: Namgyu Kim
This is a follow-up issue to LUCENE-8784.
The KoreanNumberFilter is a TokenFilter that normalizes Korean numbers to
regular Arabic decimal numbers in half-width characters.
Logic is similar to JapaneseNumberFilter.
It should be able to cover the following test cases.
1) Korean Word to Number
십만이천오백 => 102500
2) 1 character conversion
일영영영 => 1000
3) Decimal Point Calculation
3.2천 => 3200
4) Comma between three digits
4,647.0010 => 4647.001
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