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From Ville Skyttä (JIRA) <>
Subject [jira] [Updated] (LANG-715) CharSetUtils.squeeze() speedup
Date Sun, 10 Jul 2011 12:32:03 GMT


Ville Skyttä updated LANG-715:

    Attachment: squeeze-speedup.patch

CharSetUtils.squeeze() speedup

> CharSetUtils.squeeze() speedup
> ------------------------------
>                 Key: LANG-715
>                 URL:
>             Project: Commons Lang
>          Issue Type: Improvement
>          Components: lang.*
>    Affects Versions: 3.0
>            Reporter: Ville Skyttä
>            Priority: Minor
>              Labels: patch
>         Attachments: squeeze-speedup.patch
> The attached patch speeds up CharSetUtils.squeeze() by avoiding unnecessary calls to
CharSet.contains().  It should not slow down any cases, and in my tests with some use cases
that I consider fairly common ones I got up to sixfold speedups with the patch.
> It's not that squeeze() would be that slow in the first place before the patch; I just
happened to be playing around with caliper ( and squeeze()
was one of the first things I tried it with.

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