Thanks go to Richard Pattis wrote Karel the Robot, upon which this program is based. Richard was kind to give me his permission to distribute this simulator. Without his book, this program could never have been written.
Thanks also go to Jan Miksovsky, who wrote a Karel simulator in the mid 1980's. I found that program in early 2000, dusted it off, and it ran. I then modified the program to be more modular, and object-oriented (as much as one can in C). I was able to locate Jan on the internet (it pays to have a unique last name, I guess) and he was gracious enough to give me his permission to modify his original work and distribute it. Not much remains of Jan's code, but the concepts behind the simulator, and particularly the engine that builds and executes a Karel program, are Jan's, and I probably couldn't have written this system without his lead to follow.
Don Dietrick and Bill Mackiewicz both served as early beta testers. I am indebted to them for their patience in dealing with a half-baked glob of software, and sparse documentation. They dutifully did the compile-make-repeat loop in order to test out the latest I had to offer.
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