I came across the following post on the boost mailing lists (emphasis mine):
hello all,
does anybody know of an existing spirit/lisp implimentation, and is there any interest in developing such a project in open source?
None yet, AFAIK.
I'll be writing an example for Spirit2 to complement the tiny-C virtual machine in there. What's equally interesting though is that scheme (or at least a subset of it) can be implemented in pure c++. No parsing, just pure DSEL in C++. Now, imagine a parser that targets this DSEL (through C++) -- a source to source translator. Essentially, your scheme code will be compiled into highly efficient C++.
Has anyone actually done this? I would be very interested in such a DSEL.
I wrote a Lisp-like language called Funky using Spirit in C++. An Open Source version is available at http://funky.vlinder.ca . It wouldn't take too much to turn that into a Lisp-like to C++ translator.
Actually, what it would take is a run-time support library to provide generic closure times and somesuch: if you want to turn the Lisp code into efficient C++, you will basically need C++ classes (functors, etc.) to do the heavy lifting once you get to run-time, so your Lisp-to-C++ translator would need to:
If you were to start from Funky, you'd already have the parse and the AST (though Funky doesn't optimize the AST), so you could go from there an create the run-time and generate the C++...
It wouldn't be overly complicated to write one from scratch either: Lisp grammar isn't that difficult, so most of the work would go into the AST and the run-time support.
If I weren't writing an object-oriented DSL right now, I might try my hand at this.
scheme to (readable) c++ http://www.suri.cs.okayama-u.ac.jp/servlets/APPLICATION.rkt
How about this
Not sure if this is what you want, but:
http://howtowriteaprogram.blogspot.com/2010/11/lisp-interpreter-in-90-lines-of-c.html
It looks like a start, at least.
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