\[the literal [ (9110 / 1338 / 5B16)
documentthe literal text document (case sensitive) \s+a Unicode whitespace character, repeated at least once
\d+a Unicode decimal digit, repeated at least once
]the literal ] (9310 / 1358 / 5D16)
\s+a Unicode whitespace character, repeated at least once
\1the text saved by group 1
\da Unicode decimal digit
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