Racket

Racket is a descendant of Scheme and a pioneer of Language-Oriented Programming (LOP). It is designed to be a "programmable programming language."

Language-Oriented Programming

Racket's primary strength is the ease with which one can create new Domain-Specific Languages (DSLs).

• Hygienic Macros: Unlike C-style macros, Racket macros are syntax-aware and prevent accidental variable capture.
• #lang: Every Racket file starts with a #lang declaration, specifying the language/dialect being used.

Engineering Standards

• Software Contracts: Formal boundaries between modules that catch errors at the interface level.
• Typed Racket: A sibling language that adds a static type system to the Racket ecosystem.

See Also

• programming-languages-moc
• wiki-as-codebase (Connecting LOP to the concept of self-documenting code)