A grammar describes the syntax of a programming language, and might be defined in Backus-Naur form (BNF). A lexer performs lexical analysis, turning text into tokens. A parser takes tokens and builds ...
Abstract: The Backus-Naur Form (BNF), a formal notation initially designed for specifying the syntax of programming languages, has promising applications in the analysis of Financial and Customs ...
Also known as Backus normal form, it was the first metalanguage to define programming languages. Introduced by John Backus in 1959 to describe the ALGOL 58 language, it was enhanced by Peter Naur and ...
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