An Introduction to Regular Expressions What Are Regexes? 2 of 50 : [PREV] [NEXT]

What Are Regexes?

The earliest form of regular expressions (and the term itself) were invented by mathematician Stephen Cole Kleene in the mid-1950s, as a notation to easily manipulate "regular sets", formal descriptions of the behavior of finite state machines, in regular algebra.
[S.C. Kleene, "Representation of events in nerve nets and finite automata", 1956, Automata Studies. Princeton].

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