SketchyLISP is an embeddable interpreter for a purely applicative
subset of Scheme. Its implementation strives for high portability.
It is written in ANSI C (C89) and Scheme.
This is the first stable release that provides support for syntax
transformers (a.k.a. macros). It also includes new example programs
demonstrating how to embed logic programming idioms in Scheme.
Please see the project homepage at http://t3x.org/sketchy/ for
source code and documentation.