The * at the end can be taken to mean the initial state is accepting and that the automaton returns to this state whenever it accepts anything. Call the initial state q1. To accept 1(01*0)1 we must first consume a 1 and go to a new state, say q2. From there, we can self-loop on … Read more
Try this: https?:\/\/example[.]it\/(?!hello).* Working example: http://regexr.com/3dc97 I’m guessing the follow up question would be if you can make domain dynamic but I’m sure you can figure that out.
Code See regex in use here ^(?!0+$)\d{1,5}$ Results Results as described by the header for the section. ** VALID ** 1 12345 00001 01 10 ** INVALID ** 0 00000 123456 Explanation ^ Assert position at the start of the line (?!0+$) Negative lookahead ensuring what follows is not 0 one or more times, followed … Read more
Something like this? ^PREFIX(\.[a-z]+)+$ Example matches: PREFIX.test.test PREFIX.test.test.test // and so on