Regex or commands for Filtering, Finding

[LyricsLover]

You can use expressions mentioned here:

Filter expressions

Filter with Regular Expression (Regex) Track numbers that have number/number syntax track MATCHES \d\/\d Filenames that start with two digits: %_filename% MATCHES ^\d\d Filenames that start with two digits not followed by another digit: %_filename% MATCHES ^\d\d\D Case sensitive filter: title MATCHES (?-i)regex Files with characters that are not in ISO-8859-1 in tag or filename * MATCHES [\x{0100}-\x{FFFF}]

For example to filter case sensitive in _FILENAME:
%_FILENAME% MATCHES (?-i)dog
%_FILENAME% MATCHES (?-i)DOG

For your special characters like Ç or ç you could also use the syntax \x{0123} - where you have to use the correct value for the characters:
%_FILENAME% MATCHES (?-i)\x{00C7} -> Ç
%_FILENAME% MATCHES (?-i)\x{00E7} -> ç