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单词 bnf
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BNF
BNF n. Computing Backus–Naur (formerly Backus normal) form.
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society > computing and information technology > programming language > [noun] > syntax > description of
Backus–Naur form1964
BNF1964
1964 Proc. AFIPS Conf. 25 61/2 The syntax of the source language is described in a language called BNF (to suggest ‘Backus normal form’, denoted B.n.f.). BNF looks much like B.n.f.
1966 Nordisk Tidskr. Informations-Behandling 6 302 The language is a finite ordered set of production-rules, written in Backus Normal Form (BNF).
1987 B. J. MacLennan Princ. Programming Langs. (ed. 2) iv. 159 The decision to use the BNF notation in the Algol-60 Report resulted from Peter Naur's realization that his understanding of the Algol-58 description did not agree with that of John Backus.
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BNF
BNF n. originally U.S. big name fan, an enthusiast who is well known to other members of a fan community.
ΚΠ
1950 L. Hoffman in Quandry Oct. 5 Coming Next Ish: A department devoted to the BNF of tomorrow. 'Twill be the neofan of today who is the Tucker or Laney of tomorrow.
1976 in Amer. Speech (1978) 53 561 Every BNF I know (and I know quite a few) is the very example of a ‘fannish’ fan—considerate, polite, easy to talk to, easy to get along with.
2003 Guardian 14 June (Guide Suppl.) 8/3 BNFs are envied and admired in equal measure.
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