\s*a Unicode whitespace character, repeated any number of times
\[the literal [ (9110 / 1338 / 5B16)
modifierthe literal text modifier (case sensitive) .*any Unicode character (except for line terminators), repeated any number of times
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