\[the literal [ (9110 / 1338 / 5B16)
bthe literal b (9810 / 1428 / 6216) (case insensitive)
ithe literal i (10510 / 1518 / 6916) (case insensitive)
uthe literal u (11710 / 1658 / 7516) (case insensitive)
sthe literal s (11510 / 1638 / 7316) (case insensitive)
\]the literal ] (9310 / 1358 / 5D16)
\s*any whitespace character, repeated any number of times
.*?any character (except for line terminators), repeated any number of times
\s*any whitespace character, repeated any number of times
\[the literal [ (9110 / 1338 / 5B16)
\/the literal / (4710 / 578 / 2F16)
\1the text saved by group 1
\]the literal ] (9310 / 1358 / 5D16)
g modifier: global. Finds all matches instead of stopping after the first
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string
i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters