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From "Sebb (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LANG-619) String prefixing/suffixing
Date Fri, 16 Apr 2010 15:50:47 GMT

    [ https://issues.apache.org/jira/browse/LANG-619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12857863#action_12857863
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Sebb commented on LANG-619:
---------------------------

This is starting to get off-topic for a JIRA issue. 

Try:

Assert.assertEquals(expected, source.replaceAll("(?i)(cOoL)", this.prefix + "$1" + this.suffix));

The : creates a non-capturing group, which is why there is no group 1 in your example.


> String prefixing/suffixing
> --------------------------
>
>                 Key: LANG-619
>                 URL: https://issues.apache.org/jira/browse/LANG-619
>             Project: Commons Lang
>          Issue Type: New Feature
>          Components: lang.*
>    Affects Versions: 2.5
>            Reporter: Stephan van Hugten
>         Attachments: StringExtendedUtils.zip
>
>
> I had a use case that I wanted to search through a string and, when I found a match,
prefix or suffix (or both) the matching term, i.e. to apply a highlighting class to a matching
keyword in a search.
> I noticed that this cannot be done by the StringUtils framework, so me and a colleague
made this code and would like to donate it to the StringUtils project. In the attachment I
included the class with the extensions plus a Unit test testing all the usecases. I hope you
like it.
> There are 3 methods in the attached class:
> prefix: searches through a string and prefixes a match
> suffix: searches through a string and suffixes a match
> around: does both, prefix or suffix may be null. 

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