?repeats the group contents below at most once:
\s*a Unicode whitespace character, repeated any number of times
-the literal - (4510 / 558 / 2D16)
Negated Character Class[^-]* *matches any number of characters outside the set below:
-the literal - (4510 / 558 / 2D16)
-the literal - (4510 / 558 / 2D16)
\s*a Unicode whitespace character, repeated any number of times
.*any Unicode character (except for line terminators), repeated any number of times