^start of line
Non-Capturing Group(?:>=?|<=?)? ?repeats the group contents below at most once:
>the literal > (6210 / 768 / 3E16)
=?optionally matches the literal = (6110 / 758 / 3D16)
<the literal < (6010 / 748 / 3C16)
=?optionally matches the literal = (6110 / 758 / 3D16)
\d{4}a digit, repeated exactly 4 times
-the literal - (4510 / 558 / 2D16)
\d{2}a digit, repeated exactly 2 times
-the literal - (4510 / 558 / 2D16)
\d{2}a digit, repeated exactly 2 times
$end of line
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