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https://issues.apache.org/jira/browse/LUCENE-6993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15154949#comment-15154949
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Mike Drob commented on LUCENE-6993:
-----------------------------------
bq. I think we need to regenerate still, because there are new
characters/character property changes so the actual tokenizer will change (even
if the rules stay the same: the alphabet got bigger).
Ok. My current plan will be to copy all existing tokenizers to std50 packages,
update the factories to be cognizant of lucene version, update current jflex
files to all use unicode 8.0 and then regenerate all of the new tokenizer
classes.
Some of the tokenizers have a unicode 3.0 directive, which indicates that they
haven't been touched in a long time. This worries me a bit, but I'll see how it
goes.
> 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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