+matches at least one character outside the set below:
\p{L}any Unicode letter
\sany whitespace character
.the literal . (4610 / 568 / 2E16)
_the literal _ (9510 / 1378 / 5F16)
0-9one character from 0 (4810) to 9 (5710)
\-the literal - (4510 / 558 / 2D16)