\(?optionally matches the literal ( (4010 / 508 / 2816)
\s*a Unicode whitespace character, repeated any number of times
\d?optionally matches a Unicode decimal digit
\s*a Unicode whitespace character, repeated any number of times
-?optionally matches the literal - (4510 / 558 / 2D16)
\d{3}a Unicode decimal digit, repeated exactly 3 times
\s*a Unicode whitespace character, repeated any number of times
?matches at most one character from the set below:
)the literal ) (4110 / 518 / 2916)
-the literal - (4510 / 558 / 2D16)
\s*a Unicode whitespace character, repeated any number of times
\d{3}a Unicode decimal digit, repeated exactly 3 times
\s*a Unicode whitespace character, repeated any number of times
-?optionally matches the literal - (4510 / 558 / 2D16)
\s*a Unicode whitespace character, repeated any number of times
\d{4}a Unicode decimal digit, repeated exactly 4 times
\)?optionally matches the literal ) (4110 / 518 / 2916)
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