\[the literal [ (9110 / 1338 / 5B16)
Group 1(0.\d+|[1-9]\d*\.\d+) 0the literal 0 (4810 / 608 / 3016)
.any character (except for line terminators)
\d+a digit, repeated at least once
2nd Alternative[1-9]\d*\.\d+ 1-9one character from 1 (4910) to 9 (5710)
\d*a digit, repeated any number of times
\.the literal . (4610 / 568 / 2E16)
\d+a digit, repeated at least once
\D+any character that's not a digit, repeated at least once
(?1)calls group 1 as a subroutine
\]the literal ] (9310 / 1358 / 5D16)
*the literal (3210 / 408 / 2016) , repeated any number of times
.*any 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
i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters