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From "Robert Muir (JIRA)" <>
Subject [jira] [Updated] (LUCENE-8125) emoji sequence support in ICUTokenizer
Date Tue, 09 Jan 2018 00:11:00 GMT


Robert Muir updated LUCENE-8125:
    Attachment: LUCENE-8125.patch

I updated the patch with support for presentation selectors (

Nothing fancy, if we want to hyper-optimize this stuff, jflex is a better place: all of these
cases are spelled out in unicode data files.

> emoji sequence support in ICUTokenizer
> --------------------------------------
>                 Key: LUCENE-8125
>                 URL:
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Robert Muir
>         Attachments: LUCENE-8125.patch, LUCENE-8125.patch
> uax29 word break rules already know how to handle these correctly, we just need to assign
them a token type. 
> This is better than users trying to do this with custom rules (e.g. LUCENE-7916) because
they are script-independent (common/inherited).

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