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Posted to dev@lucene.apache.org by "Steven Rowe (Commented) (JIRA)" <ji...@apache.org> on 2012/03/18 16:06:42 UTC
[jira] [Commented] (LUCENE-3880) UAX29URLEmailTokenizer fails to
recognize emails as such when the mailto: scheme is prepended
[ 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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