(Or "Kleene closure", named after Stephen Kleene) The postfix "*" operator used in regular expressions, Extended Backus-Naur Form and similar formalisms to specify a match for zero or more occurrences of the preceding expression. For example, the regular expression "be*t" would match the string "bt", "bet", "beet", "beeeeet", and so on.
Last updated: 2000-07-26
Kleene closure ♦ Kleene star ♦ Kleene, Stephen Cole ♦ Klerer-May System
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