\S+any non-whitespace character, repeated at least once
{4}repeats the group contents below exactly 4 times:
\-the literal - (4510 / 558 / 2D16)
\d+a digit, repeated at least once
\.the literal . (4610 / 568 / 2E16)
googlethe literal text google (case sensitive) \w*any word character, repeated any number of times
\.the literal . (4610 / 568 / 2E16)
comthe literal text com (case sensitive) 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