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https://issues.apache.org/jira/browse/LUCENE-5447?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Rowe updated LUCENE-5447:
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Attachment: LUCENE-5447-test.patch
Patch with tests that demonstrate the problem
> StandardTokenizer should break at consecutive chars matching Word_Break =
> MidLetter, MidNum and/or MidNumLet
> ------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-5447
> URL: https://issues.apache.org/jira/browse/LUCENE-5447
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/analysis
> Affects Versions: 4.6.1
> Reporter: Steve Rowe
> Assignee: Steve Rowe
> Attachments: LUCENE-5447-test.patch
>
>
> StandardTokenizer should split all of the following sequences into two tokens
> each, but they are all instead kept intact and output as single tokens:
> {noformat}
> "A::B" (':' is in \p{Word_Break = MidLetter})
> "1..2", "A..B" ('.' is in \p{Word_Break = MidNumLet})
> "A.:B"
> "A:.B"
> "1,,2" (',' is in \p{Word_Break = MidNum})
> "1,.2"
> "1.,2"
> {noformat}
> Unfortunately, the word break test data released with Unicode, e.g. for
> Unicode 6.3
> [http://www.unicode.org/Public/6.3.0/ucd/auxiliary/WordBreakTest.txt], and
> incorporated into a versioned Lucene test, e.g.
> {{WordBreakTestUnicode_6_3_0}}, doesn't cover these cases.
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