Yes, that would solve my question 2. I can convert all umlauts to 'ue', 'ae', etc form before the tokens get to other filters and it should work fine.
Thanks, Adam -----Original Message----- From: Igal @ getRailo.org [mailto:i...@getrailo.org] Sent: 19 listopada 2012 11:15 To: java-user@lucene.apache.org Subject: Re: German 'ue' -> 'u' conversion 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 >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
