Expression-oriented programming language

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An expression-oriented programming language is a programming language in which every (or nearly every) construction is an expression and thus yields a value.^[1] The typical exceptions are macro definitions, preprocessor commands, and declarations, which expression-oriented languages often treat as statements.

Lisp^[2] and ALGOL 68 are expression-oriented languages. Pascal is not an expression-oriented language.

All functional programming languages are expression-oriented.^[3]