^start of line
\da Unicode decimal digit
\s{3}a Unicode whitespace character, repeated exactly 3 times
chrthe literal text chr (case insensitive) \da Unicode decimal digit
\s{2}a Unicode whitespace character, repeated exactly 2 times
\d+a Unicode decimal digit, repeated at least once
\s+a Unicode whitespace character, repeated at least once
\D+any character that is not a Unicode decimal digit, repeated at least once
\d+a Unicode decimal digit, repeated at least once
\.the literal . (4610 / 568 / 2E16)
\d+a Unicode decimal digit, repeated at least once
\s+a Unicode whitespace character, repeated at least once
\w+a Unicode word character, repeated at least once
Non-Capturing Group(?:(?:\s{2,}\d/\d)*?\s{2,}([10])/\2\b){3} {3}repeats the group contents below exactly 3 times:
Non-Capturing Group(?:\s{2,}\d/\d)*? *?repeats the group contents below any number of times:
\s{2,}a Unicode whitespace character, repeated at least 2 times
\da Unicode decimal digit
/the literal / (4710 / 578 / 2F16)
\da Unicode decimal digit
\s{2,}a Unicode whitespace character, repeated at least 2 times
1the literal 1 (4910 / 618 / 3116)
0the literal 0 (4810 / 608 / 3016)
/the literal / (4710 / 578 / 2F16)
\2the text saved by group 2
\ba Unicode word boundary
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