\[{2}the literal [ (9110 / 1338 / 5B16) , repeated exactly 2 times
\+{1}the literal + (4310 / 538 / 2B16) , repeated exactly 1 time
.*?any character (except for line terminators), repeated any number of times
\]{2}the literal ] (9310 / 1358 / 5D16) , repeated exactly 2 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