^start of line
.*?any character (except for line terminators), repeated any number of times
\sany whitespace character
\s+any whitespace character, repeated at least once
\Sany non-whitespace character
.*?any character (except for line terminators), repeated any number of times
\s+any whitespace character, repeated at least once
\s+any whitespace character, repeated at least once
\Sany non-whitespace character
.*?any character (except for line terminators), repeated any number of times
\s+any whitespace character, repeated at least once
\s+any whitespace character, repeated at least once
\Sany non-whitespace character
.*?any character (except for line terminators), repeated any number of times
\s+any whitespace character, repeated at least once
Non-Capturing Group(?:\s+(\S.*))? ?repeats the group contents below at most once:
\s+any whitespace character, repeated at least once
\Sany non-whitespace character
.*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