^start of string
.+any character (except for line terminators), repeated at least once
@the literal @ (6410 / 1008 / 4016)
.+any character (except for line terminators), repeated at least once
\.the literal . (4610 / 568 / 2E16)
.{2,}any character (except for line terminators), repeated at least 2 times
$end of string, or before its final line terminator