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on 1/31/05 5:23 PM, skaller at wrote:

> Note Forth is heavily used today..  Postscript IS forth.

Yes and no.

For example, PostScript is fully runtime typed. Forth is a bits-is-bits
language like assembler.

Forth is arguably more readable than PostScript since Forth's control flow
isn't generally RPN based whereas PostScript's is.

I've never gotten a chance to pin John Warnock down on whether Forth had any
influence on PostScript or whether RPN was just something that was in the
air when PostScript's precursors were being developed.