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Can you think of a regular expression that does not match itself?
Christian
Posted 2015-11-05T20:11:44.693
Reputation: 109
A regexp that does not match itself
Answers
3
A few on 2 chars
^$
\s
\d
\n
\t
\r
And many more consisting of a \ and a lowercase character.
Loovjo
Posted 2015-11-05T20:11:44.693
Reputation: 7 357
a{2}, and many more – Ypnypn – 2015-11-05T20:19:29.357Welcome to Protramming Puzzles & Code Golf! I think this question is a bit too broad, there's very many regexpes that doesn't match them self. I would also suggest adding a objective winning criteria, such as code-golf (shortest regexp wins) or popularity contest (answer with the most votes wins). – Loovjo – 2015-11-05T20:21:33.770
^$- Can't think of shorter for now.. – Optimizer – 2015-11-05T20:22:01.510This should have been closed as a duplicate of http://codegolf.stackexchange.com/q/22648/194
– Peter Taylor – 2015-11-05T21:28:52.933