SRC Technical Note 1997-009

Juno-2 Language Definition

Greg Nelson and Allan Heydon

Juno-2 is a constraint-based language intended for graphics applications. A Juno-2 program describes a picture; a Juno-2 implementation renders the picture. The paper describes the syntax and semantics of the Juno-2 language.

The Juno-2 language is useful for drawing pictures, and also interesting for its simplicity, uniformity, and its provisions for solving constraints. We hope the paper will be useful to Juno-2 users, and also of interest to programming language users and designers.

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