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https://issues.apache.org/jira/browse/LUCENE-1787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12740232#action_12740232
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Yonik Seeley commented on LUCENE-1787:
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You would want it to be greedy such that it would match a trailing period if it
did exist though.
A("."A)+"."?
> Standard Tokenizer doesn't recognise I.B.M as Acronym, it requires it ends
> with a dot i.e I.B.M.
> ------------------------------------------------------------------------------------------------
>
> Key: LUCENE-1787
> URL: https://issues.apache.org/jira/browse/LUCENE-1787
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Analysis
> Affects Versions: 2.9
> Reporter: Paul taylor
>
> Standard Tokenzizer doesn't recognise I.B.M it requires it end with a dot i.e
> I.B.M. This is particulary problematic if I.B.M is added tot the index, with
> the StandardAnalyser it will get added as IBM , a search for I.B.M will not
> match because I.B.M will be left as is, I would expect a match in this
> scenario
> I think it could be fixed by modifying the grammar ACRONYM_DEP in
> StandardTokenizerImpl.jflex so that it also supports
> {ALPHANUM} ("." {ALPHANUM})+
> dot only required between each character, (I'm not familiar with jflex syntax
> )
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