^start of line
\s*a Unicode whitespace character, repeated any number of times
.*?any Unicode character, repeated any number of times
\s+a Unicode whitespace character, repeated at least once
\(the literal ( (4010 / 508 / 2816)
Negated Character Class[^)]+ +matches at least one character outside the set below:
)the literal ) (4110 / 518 / 2916)
\)the literal ) (4110 / 518 / 2916)
:the literal : (5810 / 728 / 3A16)
\s*a Unicode whitespace character, repeated any number of times
.*?any Unicode character, repeated any number of times
Non-Capturing Group(?:\n\n|\Z) \na line-feed (newline) character (ASCII 10)
\na line-feed (newline) character (ASCII 10)
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
s modifier: single line. Allows a dot to match line terminators