if your needs are so specific -- you can always build a NormalizeCharMap
and use MappingCharFilter
Igal
On 11/19/2012 2:11 AM, Dyga, Adam wrote:
I did, but none of them can do it (at least in default configuration).
Regards,
AD
-----Original Message-----
From: Igal @ getRailo.org [mailto:i...@getrailo.org]
Sent: 19 listopada 2012 11:10
To: java-user@lucene.apache.org
Subject: Re: German 'ue' -> 'u' conversion
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.d...@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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