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https://issues.apache.org/jira/browse/LUCENE-6874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14985605#comment-14985605
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Robert Muir commented on LUCENE-6874:
-------------------------------------
You can add a CharTokenizer to ICU analysis module that just looks like this:
{code}
protected boolean isTokenChar(int c) {
return !UCharacter.isUWhiteSpace(c);
}
{code}
If you are not happy with it needing ICU library, the definition of this
property in ICU is "Space characters+TAB+CR+LF-ZWSP-ZWNBSP"
(http://icu-project.org/apiref/icu4j/com/ibm/icu/lang/UProperty.html#WHITE_SPACE)
so it shouldn't be hard to implement with just the jdk, but I do not know
about the efficiency of that.
Either way, I think it should just be a different tokenizer.
> 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
>
> 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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