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From "Hoss Man (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (SOLR-2093) regular expression in PatternReplaceFilter can handle: /([^/]*)
Date Wed, 29 Sep 2010 23:41:32 GMT

     [ https://issues.apache.org/jira/browse/SOLR-2093?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hoss Man resolved SOLR-2093.
----------------------------

    Resolution: Not A Problem

> regular expression in PatternReplaceFilter can handle: /([^/]*)
> ---------------------------------------------------------------
>
>                 Key: SOLR-2093
>                 URL: https://issues.apache.org/jira/browse/SOLR-2093
>             Project: Solr
>          Issue Type: Bug
>          Components: Schema and Analysis
>    Affects Versions: 1.4
>         Environment: debian,JRE1.6,solr1.4
>            Reporter: Kuri Masta
>            Priority: Minor
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> Using PatternReplaceFilter i want to extract a certain word out of the URI.
> Although I now understand that I should handle this outside of Solr, the fact remains
that Solr does not adequately handle regular expressions.
> Viewing the source code, I don't see any problems since it uses the java library.
> The problem:
>       <analyzer type="index">
>         <tokenizer class="solr.WhitespaceTokenizerFactory"/>
>         <filter class="solr.PatternReplaceFilterFactory"
>                         pattern="/([^/]*)/[^/]*$" replacement="$1"  replace="all" />
>       </analyzer>
> Input text:
> - a/b/c
> Expected
> - b
> Result Solr
> - ab
> An online JAVA regexp tester (http://www.regexplanet.com/simple/index.html):
> - b
> So the problem area lies at /([^/])

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