(?i)applies the following effective flags to the remainder of the pattern: gmi i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters
\(the literal ( (4010 / 508 / 2816)
\s*a Unicode whitespace character, repeated any number of times
Group 1((?:const\s+)?(?:u?(?:byte|int)\d*|void)(?:\s*\*)?) Non-Capturing Group(?:const\s+)? ?repeats the group contents below at most once:
constthe literal text const (case insensitive) \s+a Unicode whitespace character, repeated at least once
Non-Capturing Group(?:u?(?:byte|int)\d*|void) 1st Alternativeu?(?:byte|int)\d* u?optionally matches the literal u (11710 / 1658 / 7516) (case insensitive)
Non-Capturing Group(?:byte|int) bytethe literal text byte (case insensitive) intthe literal text int (case insensitive) \d*a Unicode decimal digit, repeated any number of times
voidthe literal text void (case insensitive) Non-Capturing Group(?:\s*\*)? ?repeats the group contents below at most once:
\s*a Unicode whitespace character, repeated any number of times
\*the literal * (4210 / 528 / 2A16)
\s*a Unicode whitespace character, repeated any number of times
\)the literal ) (4110 / 518 / 2916)
\s*a Unicode whitespace character, repeated any number of times
Group 2(\w+(?:\((?>[^()]+|(?<c>)\(|(?<-c>)\))*\))?) \w+a Unicode word character, repeated at least once
Non-Capturing Group(?:\((?>[^()]+|(?<c>)\(|(?<-c>)\))*\))? ?repeats the group contents below at most once:
\(the literal ( (4010 / 508 / 2816)
Atomic Group(?>[^()]+|(?<c>)\(|(?<-c>)\))* *repeats the group contents below any number of times:
Negated Character Class[^()]+ +matches at least one character outside the set below:
(the literal ( (4010 / 508 / 2816)
)the literal ) (4110 / 518 / 2916)
Group c(?<c>) — does not consume characters
\(the literal ( (4010 / 508 / 2816)
Balancing Group(?<-c>) — does not consume characters
\)the literal ) (4110 / 518 / 2916)
\)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