\[the literal [ (9110 / 1338 / 5B16)
authisthe literal text authis (case insensitive) \]the literal ] (9310 / 1358 / 5D16)
.*?any character, repeated any number of times
?repeats the group contents below at most once:
\[the literal [ (9110 / 1338 / 5B16)
elsethe literal text else (case insensitive) \]the literal ] (9310 / 1358 / 5D16)
.*?any character, repeated any number of times
\[the literal [ (9110 / 1338 / 5B16)
\/the literal / (4710 / 578 / 2F16)
authisthe literal text authis (case insensitive) \]the literal ] (9310 / 1358 / 5D16)
s modifier: single line. Allows a dot to match line terminators
i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters
g modifier: global. Finds all matches instead of stopping after the first