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https://issues.apache.org/jira/browse/LUCENE-2207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12799831#action_12799831
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Robert Muir commented on LUCENE-2207:
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Hi Koji, this looks like a bug in CJK offset calculations, probably involving
end()
Personally i find the offset logic a little complex. It currently does both
additions and subtractions to the offset and I think there is an off-by-one
error in this.
I will play around and see if I can simplify this logic, but please don't wait
on me, if you have an idea already how to fix it!
> CJKTokenizer generates tokens with incorrect offsets
> ----------------------------------------------------
>
> Key: LUCENE-2207
> URL: https://issues.apache.org/jira/browse/LUCENE-2207
> Project: Lucene - Java
> Issue Type: Bug
> Components: contrib/analyzers
> Reporter: Koji Sekiguchi
> Attachments: TestCJKOffset.java
>
>
> If I index a Japanese *multi-valued* document with CJKTokenizer and highlight
> a term with FastVectorHighlighter, the output snippets have incorrect
> highlighted string. I'll attach a program that reproduces the problem soon.
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