I figured out Ranges! abac|accede|adead|babe|bead|bebed|bedad|bedded|bedead|bede... | Hacker News

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		elwell on Dec 20, 2013 \| parent \| context \| favorite \| on: Regex Golf I figured out Ranges! `abac\|accede\|adead\|babe\|bead\|bebed\|bedad\|bedded\|bedead\|bedeaf\|caba\|caffa\|dace\|dade\|daff\|dead\|deed\|deface\|faded\|faff\|feed` Edit: /s

abus on Dec 20, 2013 | [–]

Prime:

    ^x{2,3}$|^x{5}$|^x{7}$|^x{11}$|^x{13}$|^x{17}$|^x{19}$|^x{23}$|^x{29}$|^x{31}$|x{33}

jonahx on Dec 20, 2013 | | [–]

josephlord's solution is much nicer:

^(?!(..+)(\1)+$)

abus on Dec 20, 2013 | | | [–]

Look at the parent.

criswell on Dec 20, 2013 | [–]

[a-f]{4,} works as well... but I do like your solution!

danielsamuels on Dec 20, 2013 | [–]

[a-f]{4} is shorter.

josephlord on Dec 20, 2013 | | [–]

  ^[a-f]*$

Is the same length too.

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