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https://issues.apache.org/jira/browse/LUCENE-9718?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brian Feldman updated LUCENE-9718:
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Priority: Minor (was: Major)
> REGEX Pattern Search, character classes with quantifiers do not work
> --------------------------------------------------------------------
>
> Key: LUCENE-9718
> URL: https://issues.apache.org/jira/browse/LUCENE-9718
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/search
> Affects Versions: 7.7.3, 8.6.3
> Reporter: Brian Feldman
> Priority: Minor
>
> Character classes with a quantifier do not work, no error is given and no
> results are returned. For example \d\{2} or \d\{2,3} as is commonly written
> in most languages supporting regular expressions, simply and quietly does not
> work. A user work around is to write them fully out such as \d\d or
> [0-9][0-9] or as [0-9]\{2,3} .
>
> This inconsistency or limitation is not documented, wasting the time of users
> as they have to figure this out themselves. I believe this inconsistency
> should be clearly documented and an effort to fixing the inconsistency would
> improve pattern searching.
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