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From Michael Lackhoff <>
Subject Re: EnglishPorterFilterFactory and PatternReplaceFilterFactory
Date Thu, 02 Jul 2009 16:51:14 GMT
On 02.07.2009 17:28 Erick Erickson wrote:

> I'm shooting a bit in the dark here, but I'd guess that these are
> actually understandable results.

Perhaps not too much in the dark

> That is your implicit assumption, it seems to me, is that'wärme'  and
> 'waerme' should go through the stemmer and
> become 'wärm'  and 'waerm', that you can then do the substitution
> on and produce the same output. I don't think that's a valid
> assumption.

Sounds very reasonable. Will see what I can make out of all this to keep
our librarians happy...

Yonik Seeley wrote:

> Also, check out MappingCharFilterFactory in Solr 1.4
> and mapping-ISOLatin1Accent.txt in example/solr/conf

Thanks for the hint, looking forward to the 1.4 release ;-) at the
moment we are on 1.3 though, I hope to upgrade soon but probably not
soon enough for this app.


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