regex.alf.nu
Plain strings
foo (207 points)
Anchors
k$ (208 points)
Ranges
^[a-f]+$ (202 points)
Backrefs
(.{3}).*\1 (200 points)
Abba
^(?!.*(.)(.)\2\1) (193 points)
A man, a plan
^(.)(.).*?\2\1$ (175 points)
Prime
^(?!(..+)(\1)+$) (284 points)
Four
(.)(.(\1)){3} (197 points)
Order
^.{5}[^e]?$ (199 points)
Triples
^[378][12479]|00($|[369]|1[25])|55|2[347] (589 points)
Glob
ai|c$|^p|[bcnrw][bnopr] (397 points)
Balance
^(<(<(<(<(<(<<>>)*>)*>)*>)*>)*>)*$ (286 points)
Powers
^(x|(xx){1,9}|x{32}|(x{64})+)$ (80 points)
(I'm too lazy to deal with the following two)
Long count
0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 101.{6} 1101 1110 1111 (198 points)
Long count v2
0.{9}10 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110.{4}1$ (197 points)
regex.alf.nu.txt · Last modified: 2017/01/05 06:53 by felixonmars