[Haskell-cafe] What is simplest extension language to implement?

[Stephen Tetley]

Norman Ramsey has implemented Lua as an extension language for ML,
this included actually writing a Lua interpreter not FFI-ing to the
standard Lua. He has a series of good papers about the mechanics of
exposing the API of an application to the scripting language.

The code itself is available as part of the C-- compiler suite.

Clean has Esther which is similar in spirit with a paper describing
its implementation, the code is in the standard distribution of Clean
though I think it has diverged a bit from the paper.

Finally if you end up considering Forth, Jerzy Karczmarczuk has a nice
paper describing implementations of stack languages very succinctly in
Haskell.

http://www.cs.tufts.edu/~nr/
http://www.win.tue.nl/ipa/archive/falldays2003/vWeA2003-Esther.pdf
http://users.info.unicaen.fr/~karczma/arpap/Fdpe02/fumach.pdf