wip/nyh-hoc 9.2 NetBSD

Hoc, the High Order Calculator, is an interpreted language for floating-point calculations. Its most basic use is as a powerful and convenient calculator, interactively evaluating expressions such as 1+2*sin(0.7). But hoc is no ordinary calculator: It also lets you assign values to variables, define your own functions, and use loops, conditionals, and everything else you'd expect in a programming language.

Hoc was developed by Brian Kernighan and Rob Pike, and introduced in their 1984 book The Unix Programming Environment. This version has been extended and improved by Nadav Y. Har'El