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Posted to dev@lucene.apache.org by "Robert Muir (JIRA)" <ji...@apache.org> on 2016/03/02 22:29:18 UTC
[jira] [Commented] (LUCENE-6993) Update UAX29URLEmailTokenizer TLDs
to latest list, and upgrade all JFlex-based tokenizers to support Unicode
8.0
[ https://issues.apache.org/jira/browse/LUCENE-6993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15176520#comment-15176520 ]
Robert Muir commented on LUCENE-6993:
-------------------------------------
I wouldnt change any of the ClassicTokenizer ranges, it should just continue to do what it did before.
not all of the thai characters are letters, and its important not to e.g. split on tone marks or make other mistakes like that: http://unicode.org/cldr/utility/list-unicodeset.jsp?a=[[%3AThai%3A]-[%3ALetter%3A]]%0D%0A&g=&i=
CJ is a separate category because ClassicTokenizer will return each han character individually as token. On the other hand hangul (K) is kept with letter because it is an alphabet.
> Update UAX29URLEmailTokenizer TLDs to latest list, and upgrade all JFlex-based tokenizers to support Unicode 8.0
> ----------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-6993
> URL: https://issues.apache.org/jira/browse/LUCENE-6993
> Project: Lucene - Core
> Issue Type: Improvement
> Components: modules/analysis
> Reporter: Mike Drob
> Assignee: Robert Muir
> Fix For: 6.0
>
> Attachments: LUCENE-6993.patch, LUCENE-6993.patch, LUCENE-6993.patch, LUCENE-6993.patch, LUCENE-6993.patch
>
>
> We did this once before in LUCENE-5357, but it might be time to update the list of TLDs again. Comparing our old list with a new list indicates 800+ new domains, so it would be nice to include them.
> Also the JFlex tokenizer grammars should be upgraded to support Unicode 8.0.
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