look for filters that use the ICU4J library


On 11/19/2012 2:08 AM, Lutz Fechner wrote:
> Hi,
>
> we use a modified ISOLatin1AccentFilter bit to replace German accents by ae, oe, ue and so on for that purpose.
>
> In the code you will see a switch for the characters.
>
>
> You need to change it from
>
> case '\u00E4' : // small ä
>            output[outputPos++] = 'a';
>            output[outputPos++] = 'e';
>            break;
>
> To something like this
>
> case '\u00E4' : // small ä
>            output[outputPos++] = 'a';
> 	    break;
>
> for the characters you want to replace.
>
>
> Best Regards
>
> Lutz Fechner
>
>
>
>
> -----Original Message-----
> From: Dyga, Adam [mailto:adam.dyga@beumergroup.com]
> Sent: Montag, 19. November 2012 10:47
> To: java-user@lucene.apache.org
> Subject: German 'ue' -> 'u' conversion
>
> Hello,
>
> I have two questin regarding handling German umlauts in Lucene:
>
> 1. I'm trying to find a way to convert German Umlauts written as 'ue', 'ae', etc to folded form 'u', 'a' and so on.
> This is done by GermanAnalyzer (and German2StemFilter used by it), but unfortunately it also does stemming which is very undesired in my case.
> Is there any other filter that can do only the 'ua' -> 'u' conversion?
>
> 2. Is there any filter that does 'ü' -> 'ue' (NOT 'u') conversion? What I'm trying to achieve is that word "über" should be found in the index whenever the user searches for " über" or "ueber" , but NOT "uber".
>
> Regards,
> AD
>
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-- 
Igal Sapir
Railo - Open Source CFML Engine
http://getrailo.org


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