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https://issues.apache.org/jira/browse/LANG-622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13899378#comment-13899378
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Bruno P. Kinoshita commented on LANG-622:
-----------------------------------------
I had a look at LANG-622.patch and tried playing with lastIndex and
replacing/simplifying the existing loops, but with no luck.
The problem I found was in cases like lastIndexOfAnyBut('abcdd', new char[]
{'b', 'd'}). My first implementation failed and returned the index of the first
'd' (instead of the index of c)... maybe if I backtracked until the previous
char wasn't another 'd' again... but I didn't think it was the best approach.
The loops are similar to what is done in indexOfAnyBut. Do you think maybe we
can use this version?
The only modifications I would do were add javadocs and a few more tests, as
well as adding the @Test annotation to the new test methods. What do you think?
> StringUtils.lastIndexOfAnyBut() function desired
> ------------------------------------------------
>
> Key: LANG-622
> URL: https://issues.apache.org/jira/browse/LANG-622
> Project: Commons Lang
> Issue Type: Improvement
> Components: lang.*
> Reporter: david cogen
> Priority: Minor
> Fix For: Patch Needed
>
> Attachments: LANG-622.patch, StringUtilslLastIndexOfAnyButTest.java
>
>
> class StringUtils needs the function lastIndexOfAnyBut()
> This would be like indexOfAnyBut() except searches from the end rather than
> the beginning.
> It would be like lastIndexOfAny() except looks for a character other than
> those in the string rather than for those in the string.
> This is the only one of the four combinations of "from beginning"/"from end"
> and "for any"/"for any but" that is not provided.
> Interestingly, the class header doc. mentions "LastIndexOfAnyBut" but the
> function does not exist - even as a private, as determined by class
> introspection.
> (This is not a frivolous request. I actually did need this function and ended
> up having to code a search loop.)
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