^start of line
httpthe literal text http (case sensitive) s?optionally matches the literal s (11510 / 1638 / 7316) (case sensitive)
:the literal : (5810 / 728 / 3A16)
\/the literal / (4710 / 578 / 2F16)
\/the literal / (4710 / 578 / 2F16)
Group 1(((www\.)?(myclientssite|myown)\.com\.br)|localhost(:1984)?) 1st Alternative((www\.)?(myclientssite|myown)\.com\.br) Group 2((www\.)?(myclientssite|myown)\.com\.br) ?repeats the group contents below at most once:
wwwthe literal text www (case sensitive) \.the literal . (4610 / 568 / 2E16)
Group 4(myclientssite|myown) 1st Alternativemyclientssite myclientssitethe literal text myclientssite (case sensitive) myownthe literal text myown (case sensitive) \.the literal . (4610 / 568 / 2E16)
comthe literal text com (case sensitive) \.the literal . (4610 / 568 / 2E16)
brthe literal text br (case sensitive) 2nd Alternativelocalhost(:1984)? localhostthe literal text localhost (case sensitive) ?repeats the group contents below at most once:
:1984the literal text :1984 ?repeats the group contents below at most once:
\/the literal / (4710 / 578 / 2F16)
.*any character (except for line terminators), repeated any number of times
$end of line
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