?repeats the group contents below at most once:
\s*any whitespace character, repeated any number of times
\|the literal | (12410 / 1748 / 7C16)
\s*any whitespace character, repeated any number of times
+matches at least one character from the set below:
0-9one character from 0 (4810) to 9 (5710)
-the literal - (4510 / 558 / 2D16)
+matches at least one character from the set below:
0-9one character from 0 (4810) to 9 (5710)