^start of line
\w+any word character, repeated at least once
\.the literal . (4610 / 568 / 2E16)
\w+any word character, repeated at least once
\.the literal . (4610 / 568 / 2E16)
Group my_host(?<my_host>\w{4}) \w{4}any word character, repeated exactly 4 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