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From "Steven Rowe (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3880) UAX29URLEmailTokenizer fails to recognize emails as such when the mailto: scheme is prepended
Date Sun, 18 Mar 2012 15:06:42 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13232284#comment-13232284
] 

Steven Rowe commented on LUCENE-3880:
-------------------------------------

[RFC 2368|http://tools.ietf.org/html/rfc2368] describes URLs employing the {{mailto:}} scheme;
this RFC has been obsoleted by [RFC 6068|http://tools.ietf.org/html/rfc6068], which describes
the {{mailto:}} *URI* scheme.

{{mailto:}} URIs can contain multiple email addresses, and fielded information including CC,
BCC, Subject, and Body - in short, the entire contents of an email message.

However, a significant proportion of (probably most) {{mailto:}} URIs in the wild contain
just a single email address.  Short of handling all aspects of the {{mailto:}} scheme (out
of scope for this issue), I think it would be useful to employ a trick similar to the charFilter
hack described by Kai Gülzau: explicitly split "mailto:" off from a following email address,
allowing the email address to be recognized as such.

                
> UAX29URLEmailTokenizer fails to recognize emails as such when the mailto: scheme is prepended
> ---------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-3880
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3880
>             Project: Lucene - Java
>          Issue Type: Bug
>    Affects Versions: 3.5, 4.0
>            Reporter: Steven Rowe
>            Assignee: Steven Rowe
>            Priority: Minor
>
> As [reported by Kai Gülzau on solr-user|http://markmail.org/message/n32kji3okqm2c5qn]:
> UAX29URLEmailTokenizer seems to split at the wrong place:
> {noformat}mailto:test@example.org{noformat} ->
> {noformat}mailto:test{noformat}
> {noformat}example.org{noformat}
> As a workaround I use
> {code:xml}
> <charFilter class="solr.PatternReplaceCharFilterFactory" pattern="mailto:" replacement="mailto:
"/>
> {code}

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