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https://issues.apache.org/jira/browse/LUCENE-588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12552434
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Terry Yang commented on LUCENE-588:
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I wrote my first patch to this issue. if QueryParser knows the query is
wildcard, it will directly pass the original query string to WildcardQuery
which knows exactly which character is wildcard or not. i copied part of
discardEscapeChar method from QueryParser because discardEscapeChar will throw
ParseException which will causes WildcardQuery changed much. i am looking for a
help/idea about what is the better way to process this exception?
> Escaped wildcard character in wildcard term not handled correctly
> -----------------------------------------------------------------
>
> Key: LUCENE-588
> URL: https://issues.apache.org/jira/browse/LUCENE-588
> Project: Lucene - Java
> Issue Type: Bug
> Components: QueryParser
> Affects Versions: 2.0.0
> Environment: Windows XP SP2
> Reporter: Sunil Kamath
>
> If an escaped wildcard character is specified in a wildcard query, it is
> treated as a wildcard instead of a literal.
> e.g., t\??t is converted by the QueryParser to t??t - the escape character is
> discarded.
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