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From "Yonik Seeley" <>
Subject Re: A Faster ISOLatin1AccentFilter
Date Sun, 29 Apr 2007 13:31:23 GMT
Thanks Ian, nice improvement!
Could you open a lucene JIRA issue and provide a patch?
(that helps with other things such as IP tracking)


On 4/29/07, Ian Boston <> wrote:
> Hi,
> We've been using this filter in a project and found it a bit slow, so
> we've re-written it. In tests we did on a 5M string with no accents, we
> found the version in trunk to take ~200ms, this version takes about
> ~12ms. If there are accents, then its not quite as good at about 60ms.
> (MacBookPro)
> Code is at
> BTW, just replacing StringBuffer with StringBuilder got down to about
> 80ms for both cases.
> Ian

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