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https://issues.apache.org/jira/browse/LUCENE-5447?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13905677#comment-13905677
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Steve Rowe commented on LUCENE-5447:
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bq. random question here Steve, is it possible to add this test to the unicode
tests and send upstream? or is it already fixed in recent versions?
Good idea, I'll check if it's already fixed, and if not, send upstream.
> 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
> Fix For: 4.7, 5.0
>
> Attachments: LUCENE-5447-take2.patch, LUCENE-5447-test.patch,
> LUCENE-5447.patch, LUCENE-5447.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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