^start of line
+matches at least one character from the set below:
\da Unicode decimal digit
.the literal . (4610 / 568 / 2E16)
\/the literal / (4710 / 578 / 2F16)
\da Unicode decimal digit
\da Unicode decimal digit
\S*any character that is not Unicode whitespace, 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