I'm glad to see a new language implemented on Guile! IMO, the language project could be out of Guile core, and it's easier to maintain or apply patches.
Thanks! On Mon, 2016-02-15 at 22:17 -0600, Eric Bavier wrote: > Hello Guilers, > > And happy birthday Guile! > > I started this project a few weeks ago, and managed to make enough > progress that I thought I'd share it for the potluck. > > Joy is a simple, forth-like, purely functional, concatenative > programming language: > > https://en.wikipedia.org/wiki/Joy_(programming_language) > http://www.latrobe.edu.au/humanities/research/research-projects/past-projects/joy-programming-language > > Attached is a patch to guile master that adds a module/language/joy > directory, with lexer, parser, compiler to tree-il, runtime, and minimal > standard library. This is still a work-in-progress, but you can already > do some fun things: > > $ guile > scheme@(guile-user)> ,L joy > joy@(guile-user)> "<path-to>/base.joy" include . > joy@(guile-user)> 2 3 + 4 1 . > $1 = (1 4 5) > joy@(guile-user)> DEFINE foo == 2 3 + 4 1 ; bar == + + . > joy@(guile-user)> foo bar . > $2 = (10) > joy@(guile-user)> [1 2 3 4 5 6] [fact] map . > $3 = ((1 2 6 24 120 720)) > joy@(guile-user)> [1 2 3 4 5 6] [fact] map sum . > $4 = (873) > joy@(guile-user)> [1 2 3 4 5 6] [fact 2 /] map . > $5 = ((0 1 3 12 60 360)) > > My interest in Joy came from a search to find a small language whose > minimal base could be implemented as an easily-audited assembly > interpreter, but which has higher-level language capabilities. The > guile implementation sprang out of a desire to get to know the language > a bit more before embarking on the assembly route. Learning more about > Guile's multi-language support has been a real pleasure, and I'd love > to see it/help it grow more. > > Limitations and things yet to do: > > - The compiler and runtime currently do not support "sets" aka bitsets > as a native type like the reference implementation does. > > - String support in the primitives and base library is not complete. I > have been toying with the idea of just compiling strings to > lists-of-chars for easier handling and simplicity of the primitives. > > - REPL: A joy-specific writer would be nice. And better backtraces? > > - Writing more interesting libraries. I had hoped to write a useful > parser-combinator library. > > - Better include-path handling. > > - Distribution: part of Guile, or separate? > > Anyhow, I hope some find this interesting. > > Happy Hacking and happy birthday Guile! > `~Eric Bavier
