^start of line
aathe literal text aa (case sensitive) Non-Capturing Group(?:aa)* *repeats the group contents below any number of times:
aathe literal text aa (case sensitive) bthe literal b (9810 / 1428 / 6216) (case sensitive)
Non-Capturing Group(?:bbb)* *repeats the group contents below any number of times:
bbbthe literal text bbb (case sensitive) $end of line
(*SKIP)acts like (*PRUNE), but the next unanchored match attempt starts where (*SKIP) was reached instead of at the next subject character
(*FAIL)forces the current match attempt to fail at this position