What's the regular expression for regular expressions?

Question

Ok, so it's late on a Wed night and this is for no good reason. But I'd like to see one in any dialect, if it exists, just to be impressed.

Have you been imbibing numerous beverages as part of your evening so far? — Adrian Wragg, Aug 21 '13 at 23:42
Awe, come on. No need to downvote... :) It's all in good fun! — Matthew Adams, Aug 21 '13 at 23:44
+1. Good question. Self-hosting/bootstrapping/recursion is always intriguing. — Thilo, Aug 21 '13 at 23:44
A dupe, though: http://stackoverflow.com/questions/172303/is-there-a-regular-expression-to-detect-a-valid-regular-expression — Thilo, Aug 21 '13 at 23:45
You would at least need an regex dialect that can cope with nested parentheses. — FrankPl, Aug 21 '13 at 23:45
This is a programming game type question rather than a serious question, and is probably better suited for [CodeGolf](http://codegolf.stackexchange.com/). — Ken White, Aug 22 '13 at 00:19

score 2 · Accepted Answer · answered Aug 21 '13 at 23:51

2

[Rr][eE3][gG][uU][Ll][aA4][rR]\s[Ee3][xX][pP][rR][eE3][Ss5]{2}[iI1][Oo0][nN][sS5]

answered Aug 21 '13 at 23:51

AbsoluteƵERØ

1 Answers1