[Koha-bugs] [Bug 28884] ElasticSearch: Question mark in title search returns no results

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=28884

--- Comment #8 from Janusz Kaczmarek <januszop at gmail.com> ---
(In reply to Nick Clemens from comment #7)
> This was "solved" with a hack on bug 31213
> 
> If I understand what this patch is doing, you are escaping the question mark
> so it no longer operates as a special character?
> 
> This is not a bad idea, however, it needs to be documented with a comment in
> the code, as well as in the system preference. I think it would actually be
> better as its own system preference.

Nick, I'm aware of your 'hack'--now, I'm unable to verify if quickly, but as
far as I remember it didn't solve this case.  If it did, there would be no
point for me to dig into this.

If I remember well, the patch intends to treat the question mark, in the
function _query_regex_escape_process, in exactly the same way as it is done
with slash: instead of escaping/unescaping only '/': (?=/) it escapes also '?':
(?=[/\?]).  Maybe I could extend the existing comment, but I don't feel like
this is a candidate for a new syspref...?

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