search body with wildcards

[W. de Hoog]

> When searching:
>
>   doveadm search mailbox shared/* BODY calib*
>
> solr is queried with
>
>   ...body:calib%5c*...
>
> so the wildcard is escaped. Is there any way to disable this escaping?
I removed '*' and '?' from solr_escape_chars in 
src/plugins/fts-solr/fts-backend-solr.c to allow to use them as 
wildcards. I also removed '\' to allow them to be escaped so now these work:

doveadm search mailbox shared/* BODY calibrat*
to find words starting with calibrat

and

doveadm search mailbox shared/* BODY calibrati\\*n
to find "calibrati*n"

In my php search form I can now use "body calibrat*" and in thunderbird 
search dialog as well. Searching for "calibrati*n" (using 
"calibrati\*n") also works for php but not in Thunderbird.

One note: searching with "\*" is rather slow.

I cannot estimate the implications it has on the other search actions 
(TO, FROM etc) so I hope someone with more knowledge can comment.


regards,

-- 
Willem-Jan de Hoog