[kmail2] [Bug 335255] Quicksearch: non-alphanumeric characters in search term are ignored at word boundaries

[Denis Kurz]

https://bugs.kde.org/show_bug.cgi?id=335255

Denis Kurz <kdenis at posteo.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kdenis at posteo.de
            Version|4.13.1                      |5.4.0
            Summary|Quick filtering the mail    |Quicksearch:
                   |subject with "***Spam***"   |non-alphanumeric characters
                   |shows also mails without    |in search term are ignored
                   |"***"                       |at word boundaries
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |CONFIRMED

--- Comment #3 from Denis Kurz <kdenis at posteo.de> ---
Interesting... Using the filter term "/)(}{CMake****>=[)( for
\/{}*[]…download:-)(<>=" still lists the message with subject "[ANNOUNCE] CMake
3.7.2 available for download". Replacing "CMake" with "Make" or "CMak", or
"download" with "ownload" or "downloa", however, does not yield any results.
Using "fo" or "or" instead of "for" does not make a difference, because words
with less than three letters are ignored.

Summary:
"*ABCDE" matches "ABCDE"
"ABCDE*" matches "ABCDE"
"*BCDE" does not match "ABCDE"
"ABCD*" does not match "ABCDE"

The last two cases might be especially confusing if you are used to certain
regular expressions.

Obviously, only special characters at word boundaries are ignored. I'm pretty
sure that most users would not expect this behaviour. Confirmed for 5.4.1.

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