^start of line
httpthe literal text http (case sensitive) Non-Capturing Group(?:s)? ?repeats the group contents below at most once:
sthe literal s (11510 / 1638 / 7316) (case sensitive)
:the literal : (5810 / 728 / 3A16)
\/the literal / (4710 / 578 / 2F16)
\/the literal / (4710 / 578 / 2F16)
Non-Capturing Group(?:[\w-]+\.?)+ +repeats the group contents below at least once:
+matches at least one character from the set below:
\wany word character
-the literal - (4510 / 558 / 2D16)
\.?optionally matches the literal . (4610 / 568 / 2E16)
\/the literal / (4710 / 578 / 2F16)
+matches at least one character from the set below:
\wany word character
-the literal - (4510 / 558 / 2D16)
\.the literal . (4610 / 568 / 2E16)
?repeats the group contents below at most once:
\/the literal / (4710 / 578 / 2F16)
\wany word character
-the literal - (4510 / 558 / 2D16)
$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