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

[Katrin Fischer]

Hi Michael,

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! :)

Katrin

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