^start of string
.*any Unicode character (except for line terminators), repeated any number of times
slashes the literal text slashes (case sensitive) +matches at least one character from the set below:
A-Zone character from A (6510) to Z (9010) (case sensitive)
a-zone character from a (9710) to z (12210) (case sensitive)
's legthe literal text 's leg (case sensitive) .any Unicode character (except for line terminators)
$end of string, or before its final line terminator