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From Brian Goetz <>
Subject Re: Question about PorterStemFilter class
Date Thu, 04 Nov 2004 04:14:52 GMT
The PorterStemmer class derives from Martin Porter's original 
implementation, with some bugs fixed (by me.)  I deliberately made the 
minimal modifications to simplify merging with future versions of the 
Porter stemmer (of which there were none.)

> I just this week joined the mailing list, and on this topic thought
> I'd mention that I've rewritten the PorterStemmer Java class, cleaning
> up whitespace and predeclaring all the Strings for better performance.
> It passes the file-in file-out test provided by Martin Porter (iow,
> no change from the existing algorithm). The source for mine was taken
> from his site -- I'm not sure of the origin of the one in Lucene. I
> could also add an Apache license to the top.

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