^start of line
+matches at least one character from the set below:
A-zone character from A (6510) to z (12210) (case insensitive)
_the literal _ (9510 / 1378 / 5F16)
.*any character (except for line terminators), repeated any number of times
_the literal _ (9510 / 1378 / 5F16)
+matches at least one character from the set below:
0-9one character from 0 (4810) to 9 (5710)
.*any character (except for line terminators), repeated any number of times
$end of line
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
g modifier: global. Finds all matches instead of stopping after the first