^start of line
.*?any character (except for line terminators), repeated any number of times
\s+any whitespace character, repeated at least once
\S+any non-whitespace character, repeated at least once
\s?optionally matches any whitespace character
-the literal - (4510 / 558 / 2D16)
\s*any whitespace character, repeated any number of times
\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match
.*any character (except for line terminators), repeated any number of times
$end of line
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