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https://issues.apache.org/jira/browse/SOLR-1653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790056#action_12790056
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Koji Sekiguchi edited comment on SOLR-1653 at 12/14/09 9:28 AM:
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Ok. I'll show you same samples ;-)
||INPUT||groupedPattern||replaceGroups||OUTPUT||comment||
|see-ing looking|(\w+)(ing)|1|see-ing look|remove "ing" from the end of word|
|see-ing looking|(\w+)ing|1|see-ing look|same as above. 2nd parentheses can be
omitted|
|No.1 NO. no. 543|[nN][oO]\.\s*(\d+)|{#},1|#1 NO. #543|sample for
literal. do not forget to set blockDelimiters other than period when you use
period in groupedPattern|
|abc-1234-5678|(\w+)=(\d+)=(\d+)|3,{=},1,{=},2|5678-abc-1234|change the order
of the groups|
was (Author: koji):
Ok. I'll show you same samples ;-)
||INPUT||groupedPattern||replaceGroups||OUTPUT||comment||
|see-ing looking|(\w+)(ing)|1|see-ing look|remove "ing" from the end of word|
|see-ing looking|(\w+)ing|1|see-ing look|same as above. 2nd parentheses can be
omitted|
|No.1 NO. no. 543|[nN][oO]\.\s*(\d+)|{#},1|#1 NO. #543|sample for
literal. do not forget to set blockDelimiters other than period when you use
period in groupedPattern|
|abc-1234-5678|(\w+)--(\d+)--(\d+)|3,{--},1,{--},2|5678-abc-1234|change the
order of the groups|
> add PatternReplaceCharFilter
> ----------------------------
>
> Key: SOLR-1653
> URL: https://issues.apache.org/jira/browse/SOLR-1653
> Project: Solr
> Issue Type: New Feature
> Components: Schema and Analysis
> Affects Versions: 1.4
> Reporter: Koji Sekiguchi
> Assignee: Koji Sekiguchi
> Priority: Minor
> Fix For: 1.5
>
> Attachments: SOLR-1653.patch
>
>
> Add a new CharFilter that uses a regular expression for the target of replace
> string in char stream.
> Usage:
> {code:title=schema.xml}
> <fieldType name="textCharNorm" class="solr.TextField"
> positionIncrementGap="100" >
> <analyzer>
> <charFilter class="solr.PatternReplaceCharFilterFactory"
> groupedPattern="([nN][oO]\.)\s*(\d+)"
> replaceGroups="1,2" blockDelimiters=":;"/>
> <charFilter class="solr.MappingCharFilterFactory"
> mapping="mapping-ISOLatin1Accent.txt"/>
> <tokenizer class="solr.WhitespaceTokenizerFactory"/>
> </analyzer>
> </fieldType>
> {code}
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