Negated Character Class[^\-\n] \-the literal - (4510 / 558 / 2D16)
\na line-feed (newline) character (ASCII 10)
\s+any whitespace character, repeated at least once
\-the literal - (4510 / 558 / 2D16)
\s+any whitespace character, repeated at least once
.+any character (except for line terminators), repeated at least once
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