.*any Unicode character (except for line terminators), repeated any number of times
{2}matches exactly 2 characters from the set below:
0-9one character from 0 (4810) to 9 (5710)
.?optionally matches any Unicode character (except for line terminators)
0the literal 0 (4810 / 608 / 3016)
1-9one character from 1 (4910) to 9 (5710)
1the literal 1 (4910 / 618 / 3116)
0-2one character from 0 (4810) to 2 (5010)
.*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