^start of line
\d{2}a Unicode decimal digit, repeated exactly 2 times
/the literal / (4710 / 578 / 2F16)
\d{2}a Unicode decimal digit, repeated exactly 2 times
/the literal / (4710 / 578 / 2F16)
\d{4}a Unicode decimal digit, repeated exactly 4 times
+matches at least one character from the set below:
-the literal - (4510 / 558 / 2D16)
the literal (3210 / 408 / 2016)
.the literal . (4610 / 568 / 2E16)
\d{2}a Unicode decimal digit, repeated exactly 2 times
/the literal / (4710 / 578 / 2F16)
\d{2}a Unicode decimal digit, repeated exactly 2 times
/the literal / (4710 / 578 / 2F16)
\d{4}a Unicode decimal digit, repeated exactly 4 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