+repeats the group contents below at least once:
Negated Character Class[^\s]+ +matches at least one character outside the set below:
\sany whitespace character
\sany whitespace character
\s{2,}any whitespace character, repeated at least 2 times
+matches at least one character from the set below:
\da digit
.the literal . (4610 / 568 / 2E16)
-the literal - (4510 / 558 / 2D16)
\s+any whitespace character, repeated at least once
\S+any non-whitespace character, repeated at least once
\s+any whitespace character, repeated at least once
.*any character (except for line terminators), repeated any number of times
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