Search should be case-insensitive for non-ascii characters

[staviss]

The contact search seems to be case-sensitive for russian letters, and it seems to be weird :)

/ Delta 0.99

[r10s]

What do you mean with "weird"? Just the case-insensivity? Or some additional bug?

[staviss]

I mean case-sensivity! It is strange to shift the first letter of a name, or a surname, for the search. F.E.: I search "бьёрн" and don't get "Бьёрн". "илья" doesn't get "Илья", "алекс" doesn't get "Александр", and so on.

[r10s]

I have understood this. I was just wondering if there are more things "weird" :)

Regarding the issue: In fact, it does not work for german umlauts, too :( Eg. typing BJÖRN won't find Björn - however, as there are few names starting with umlauts, it was not yet noticed here.

A quick research on the problems:

• It seems as if the ICU extension is not available in sqlite, see https://www.sqlite.org/src/dir?name=ext/icu
• query the database on 16.04 ubuntu with sqliteman has the same problem
• I think in the deltachat-core, everything is done correctly (creating the index with NOCASE, LIKE defaults to nocase)

So, finally, we just need someone to figure out how ICU can be enabled.

[r10s]

NB: maybe you can edit the title if this issue to a more general one - in fact, it affects most non-english-languages in a way ...

[staviss]

"Weird" is for strange, unusual, bizarre here :)

Ok. Correcting the issue name.

/Ilya

[r10s]

Thanks :)

[angelo-fuchs]

I can reproduce this in 0.100, "BJ" finds "Björn" but "BJÖ" does not.

[r10s]

i assume, this is a core-issue, moving it therefore. also i it is not limited to the contact search but also to chat and message search.