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Date: Mon, 12 Nov 2007 19:20:50 -0800 (PST)
From: "Henri Yandell (JIRA)" <jira@apache.org>
To: issues@commons.apache.org
Subject: [jira] Commented: (LANG-269) Shouldn't Commons Lang's StringUtils
 have a "common" string method?
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    [ https://issues.apache.org/jira/browse/LANG-269?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12542038 ] 

Henri Yandell commented on LANG-269:
------------------------------------

 svn ci -m "Applying Scott Johnson's great work in LANG-269" src
Sending        src/java/org/apache/commons/lang/StringUtils.java
Sending        src/test/org/apache/commons/lang/StringUtilsTest.java
Transmitting file data ..
Committed revision 594409.

Slight modification to the patch in that I removed a Math.max from the loop by starting at 0 and not -1 for the smallest value.

> Shouldn't Commons Lang's StringUtils have a "common" string method?
> -------------------------------------------------------------------
>
>                 Key: LANG-269
>                 URL: https://issues.apache.org/jira/browse/LANG-269
>             Project: Commons Lang
>          Issue Type: New Feature
>         Environment: generic
>            Reporter: Michael Dang
>             Fix For: 2.4
>
>         Attachments: StringUtils.patch, v2_StringUtils.java.patch, v2_StringUtilsTest.java.patch
>
>
> A method which accepts a string array and returns a string which is the common portion of all the strings starting from the left, or more general form of that.
> This is very common operation.  For example, one may want to find the common directory of a set of path strings.
> passing in:
> "/foo/f1.txt"
> "/foo/moo/f2.txt"
> "/foo/moo/f3.txt"
> should returns "/foo/"
> It is tedious to implement this in every project.  And I think Commons Lang StringUtils should have some methods to help in this.

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