[Koha] How to make the Koha/Zebra search ignore hyphens?

[Michael Kuhn]

Hi Kathrin

 > we looked into this ages ago and it didn't seem possible to achieve
 > both - treating hyphen (-) as a space and not a space at the same
 > time. Maybe we missed something - If there is a solution, I'd be
 > interested in a how-to! :)

Just to clarify: We don't want to treat hyphen as a space. We just want 
to ignore/omit it while searching. (Well, maybe the "vice versa" part of 
my e-mail is not all too sophisticated...)

So "Sinti-Swing" would NOT become "Sinti Swing" (as it is actually the 
case) but just "SintiSwing". Of course, a search term like "Sinti Swing" 
should just stay unaltered as there is no hyphen in it anyway.

Best wishes: Michael
-- 
Geschäftsführer · Diplombibliothekar BBS, Informatiker eidg. Fachausweis
Admin Kuhn GmbH · Pappelstrasse 20 · 4123 Allschwil · Schweiz
T 0041 (0)61 261 55 61 · E mik at adminkuhn.ch · W www.adminkuhn.ch





> On 24.09.19 20:47, Michael Kuhn wrote:
>> Hi David
>>
>> Many thanks for your reply and the hints!
>>
>> After a standard installation of Koha 18.11 the CHR indexing is used,
>> thus the configuration is done in file "word-phrase-utf.chr".
>>
>> A catalog search
>> * for "Sintiswing" shows 1 hit
>> * for "Sinti-Swing" shows 18 hits, the hyphen is used as a breaking
>> character, so any record containing "Sinti-Swing" or "Sinti" and
>> "Swing" is found, but not "Sintiswing"
>>
>> I changed the following line, omitting the hyphen (between comma and
>> dot):
>>
>> space
>> {\001-\040}!"#$%&'\()*+,./:;<=>?@\[\\]^_`\{|}~’{\x88-\x89}{\x98-\x9C}¡¿«»
>>
>> After a Zebra reindexing a catalog search
>> * for "Sintiswing" shows 1 hit
>> * for "Sinti-Swing" now shows only 8 hits, the hyphen is no more used
>> as a breaking character, so any record containing "Sinti Swing" or
>> "Sinti-Swing" is found, but not "Sintiswing"
>>
>> I also tried to add "map (-) @" but this leads to the original results.
>>
>> In short: My change of configuration didn't lead to the desired
>> result... If searching for "Sintiswing" also "Sinti-Swing" should be
>> found, and vice versa. This is not the case.
>>
>> Since I couldn't find any documentation about CHR indexing - does
>> anyone know where to find out more about the CHR way of indexing?
>>
>> Best wishes: Michael
> _______________________________________________
> Koha mailing list  http://koha-community.org
> Koha at lists.katipo.co.nz
> https://lists.katipo.co.nz/mailman/listinfo/koha