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The only thing PostScript and Forth have in common is RPN. Other than that, they are very different in philosophy - Forth is very bit banging, close to the meta
by microtherion 1y ago
The only thing PostScript and Forth have in common is RPN. Other than that, they are very different in philosophy - Forth is very bit banging, close to the metal, while PostScript is much more symbol oriented and high level.
- ks2048 1y agoThat's true, PostScript is much higher-level and feels like a stack-based LISP. But, saying they just have RPN in common makes it seem like a small choice about the syntax - instead of a whole stack-oriented approach, which affects everything.
- microtherion 1y agoWell, yes, the stack oriented approach does matter. But even there, there are big differences with Forth having a user accessible return stack, which is implicit in PostScript, while PostScript has an explicit dictionary stack, which exists only in a very primitive form in Forth.