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https://issues.apache.org/jira/browse/LUCENE-889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12499117
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Karl Wettin commented on LUCENE-889:
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Erik Hatcher [25/May/07 06:57 AM]
> This patch concerns me. This changes default behavior
> in a very basic and commonly used piece of Lucene. At
> the very least this should be made entirely optional and
> off by default.
>
> Thoughts?
It is off by default. The punctuation comes out from the tokenizer, but the
StandardAnalyzer uses a StandardFilter, and the StandardFilter will filter out
the punctuation tokens. In order to get the punctuation, one needs to use a
plain StandardTokenizer.
> Standard tokenizer with punctuation output
> ------------------------------------------
>
> Key: LUCENE-889
> URL: https://issues.apache.org/jira/browse/LUCENE-889
> Project: Lucene - Java
> Issue Type: Improvement
> Affects Versions: 2.1
> Reporter: Karl Wettin
> Priority: Trivial
> Attachments: standard.patch, test.patch
>
>
> This patch adds punctuation (comma, period, question mark and exclamation
> point) tokens as output from the StandardTokenizer, and filters them out in
> the StandardFilter.
> (I needed them for text classification reasons.)
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