STARTthe literal text START (case sensitive) \[the literal [ (9110 / 1338 / 5B16)
\d+a digit, repeated at least once
\]the literal ] (9310 / 1358 / 5D16)
*?repeats the group contents below any number of times:
.any character (except for line terminators)
\na line-feed (newline) character (ASCII 10)
\ra carriage return (ASCII 13)
ENDthe literal text END (case sensitive) \[the literal [ (9110 / 1338 / 5B16)
\d+a digit, repeated at least once
\]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