CODEWITHSUNDEEP
parsingbnf
Adrian McCarthy
Adrian McCarthy

Reputation: 47962

Name for the `::=` symbol in BNF?

Backus-Naur Form uses ::= between the left and right sides of the production rules of a grammar. Wikipedia tells me that notation evolved from :≡. Do either of those symbols have a name?

Upvotes: 2

Views: 252

Answers (1)

Adrian McCarthy
Adrian McCarthy

Reputation: 47962

Based on @rici's tip that Unicode simply calls it DOUBLE COLON EQUALS, it doesn't seem there's another official name.

Upvotes: 1

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