s7

Scheme interpreter

s7 is a Scheme interpreter intended as an extension language for other applications. Although it is a descendant of tinyScheme, s7 is closest as a Scheme dialect to Guile 1.8. I believe it is compatible with r5rs and r7rs. It has continuations, ratios, complex numbers, macros, keywords, hash-tables, multiprecision arithmetic, generalized set!, unicode, and so on. It does not have syntax-rules or any of its friends, and it thinks there is no such thing as an inexact integer.