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https://issues.apache.org/jira/browse/LUCENE-6874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14998838#comment-14998838
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David Smiley commented on LUCENE-6874:
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Uwe,
Why persist the bitset and deal with the build issues around that when instead
it could be done in-memory in a static initializer? It's so cheap to build
that I question the effort in pre-building it as part of the build process.
On 5.x, Uwe, Adrien, how do you feel about the WhitespaceTokenizerFactory I
have in the patch with the "rule" attribute to pick?
> WhitespaceTokenizer should tokenize on NBSP
> -------------------------------------------
>
> Key: LUCENE-6874
> URL: https://issues.apache.org/jira/browse/LUCENE-6874
> Project: Lucene - Core
> Issue Type: Improvement
> Components: modules/analysis
> Reporter: David Smiley
> Priority: Minor
> Attachments: LUCENE-6874-jflex.patch, LUCENE-6874.patch,
> LUCENE_6874_jflex.patch
>
>
> WhitespaceTokenizer uses [Character.isWhitespace
> |http://docs.oracle.com/javase/8/docs/api/java/lang/Character.html#isWhitespace-int-]
> to decide what is whitespace. Here's a pertinent excerpt:
> bq. It is a Unicode space character (SPACE_SEPARATOR, LINE_SEPARATOR, or
> PARAGRAPH_SEPARATOR) but is not also a non-breaking space ('\u00A0',
> '\u2007', '\u202F')
> Perhaps Character.isWhitespace should have been called
> isLineBreakableWhitespace?
> I think WhitespaceTokenizer should tokenize on this. I am aware it's easy to
> work around but why leave this trap in by default?
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