\d+a digit, repeated at least once
\s+any whitespace character, repeated at least once
-the literal - (4510 / 558 / 2D16)
Negated Character Class[^-]* *matches any number of characters outside the set below:
-the literal - (4510 / 558 / 2D16)
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