Syntax (programming languages
Below is a simple grammar, defined using the notation of regular expressions andExtended BackusNaur form. It describes the syntax ofS-expressions, a data syntax of the programming languageLisp, which defines productions for the syntactic categoriesexpression,atom,number,symbol, andlist: . PWS Publishing.ISBN0-534-94728-X. Usingnatural languageas an example, it may not be possible to assign a meaning to a grammatically correct … Read more


