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 ...
Each graphic syntax diagram in this reference is followed by a link to a text description of the graphic. The text descriptions consist of a simple variant of Backus-Naur Form (BNF) that includes the ...
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 ...
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