*repeats the group contents below any number of times:
,?optionally matches the literal , (4410 / 548 / 2C16)
\s*any whitespace character, repeated any number of times
\[?optionally matches the literal [ (9110 / 1338 / 5B16)
Negated Character Class[^\][]+ +matches at least one character outside the set below:
\]the literal ] (9310 / 1358 / 5D16)
[the literal [ (9110 / 1338 / 5B16)
]the literal ] (9310 / 1358 / 5D16)
\(the literal ( (4010 / 508 / 2816)
Negated Character Class[^()]* *matches any number of characters outside the set below:
(the literal ( (4010 / 508 / 2816)
)the literal ) (4110 / 518 / 2916)
\)the literal ) (4110 / 518 / 2916)