scheme-d is an incomplete Scheme interpreter in D for an easy embeddable language.

See UNLICENSE.txt

See: https://github.com/p0nce/scheme-d/blob/master/examples/repl/repl.d

A small part of R6RS is supported:

• Types: double, string, bool, list, symbol, and closure (Scheme functions or D callbacks)
• pre-defined operations: https://github.com/p0nce/scheme-d/blob/master/source/schemed/environment.d#L51
• special forms: https://github.com/p0nce/scheme-d/blob/master/source/schemed/eval.d#L47

A large part of R6RS is unsupported:

• vectors (list is already implemented with D slices)
• Scheme literals syntax for float, string or chars
• quasi-quoting
• Scheme numerical tower. Only double is provided
• char type
• \x escape sequence in strings

• symbols have too lax a grammar, should respect Extended alphabetic characters