J in J
Or, "Another Implementation of J", as contrasted with "An Implementation of J".
Public J Source Code
Redick, TerrenceBrannon's J reimplementation project. I think he's changed foundation languages a couple times (first Lisp, then Chicken Scheme, now Java?). The source was originally at redick.metaperl.com but now appears to be hosted at GoogleCode.
RATAPL.ARC was, I believe, an early (pre-J) implementation of "Rational APL" (aka Dictionary APL).
Commentary on Implementing J
A thread on reimplementing J. See Roger's comments in particular
- Roger's comments from an earlier thread on the Forum
Resources for Reimplementing J
The Dictionary of J, of course.
Monad ;: (lexing, word formation)
PrimitivePrimitives (the Vocabulary)
- Other models of primitives
Martin Gaertner's Juggle contains some interface information