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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-6874) WhitespaceTokenizer should tokenize on NBSP
Date Sat, 14 Nov 2015 19:22:11 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-6874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15005553#comment-15005553
] 

ASF subversion and git services commented on LUCENE-6874:
---------------------------------------------------------

Commit 1714354 from [~thetaphi] in branch 'dev/trunk'
[ https://svn.apache.org/r1714354 ]

LUCENE-6874: Add a new UnicodeWhitespaceTokenizer to analysis/common that uses Unicode character
properties extracted from ICU4J to tokenize text on whitespace

> 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
>            Assignee: Uwe Schindler
>            Priority: Minor
>         Attachments: LUCENE-6874-chartokenizer.patch, LUCENE-6874-chartokenizer.patch,
LUCENE-6874-chartokenizer.patch, LUCENE-6874-jflex.patch, LUCENE-6874.patch, LUCENE_6874_jflex.patch,
icu-datasucker.patch, unicode-ws-tokenizer.patch, unicode-ws-tokenizer.patch, unicode-ws-tokenizer.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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