^start of line
httpthe literal text http (case sensitive) ?matches at most one character from the set below:
sthe literal s (11510 / 1638 / 7316) (case sensitive)
:the literal : (5810 / 728 / 3A16)
\/the literal / (4710 / 578 / 2F16)
\/the literal / (4710 / 578 / 2F16)
\w+a Unicode word character, repeated at least once
*repeats the group contents below any number of times:
\.the literal . (4610 / 568 / 2E16)
\w+a Unicode word character, repeated at least once
?repeats the group contents below at most once:
:the literal : (5810 / 728 / 3A16)
+matches at least one character from the set below:
0-9one character from 0 (4810) to 9 (5710)
\/?optionally matches the literal / (4710 / 578 / 2F16)
*repeats the group contents below any number of times:
\/the literal / (4710 / 578 / 2F16)
*matches any number of characters from the set below:
.the literal . (4610 / 568 / 2E16)
\Sany character that is not Unicode whitespace
$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