I said this and I will say it again. Oberon, the language, is the most delightful little thing to write a compiler for. Even more so in s-exp syntax. The canonical implementation is described in a 40 page tutorial by the MASTER himself, Wirth :-)
People interested in alternative desktop and GUI environments should also look at all the biproduct research that came out of Plan9 (NB: there is a programming language called "Squeak" somewhere in there, it's not the smalltalk, but something C-ish invented by Rob Pike hacked on by the usual Bell Labs suspects :-)
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I said this and I will say it again. Oberon, the language, is the most delightful little thing to write a compiler for. Even more so in s-exp syntax. The canonical implementation is described in a 40 page tutorial by the MASTER himself, Wirth :-)
People interested in alternative desktop and GUI environments should also look at all the biproduct research that came out of Plan9 (NB: there is a programming language called "Squeak" somewhere in there, it's not the smalltalk, but something C-ish invented by Rob Pike hacked on by the usual Bell Labs suspects :-)