RogerBW's Blog

PostScript Libraries 15 May 2022

Yes, I'm still programming in PostScript. Why? Because I enjoy it.

I'm pretty sure it's entirely useless for anything practical; file operations are primitive in the extreme, for example, and it's very slow compared with anything I'm using except Raku. But I like its extensibility and I enjoy the challenge of working on the stack where possible rather than just throwing everything into variables.

So I've collected together and tidied up a bunch of the utility code I've written for various Weekly Challenges, and here it is.

  • deepeq - deep data structure comparison
  • iterables - functional programming primitives, map and filter and reduce
  • juliandate - convert between year-month-day and Julian day values
  • maths - generate prime numbers, factor numbers, gcd and lcm
  • permute - generate all permutations of an array
  • quicksort - sort an array
  • strings - join and split strings
  • test - test other functions

Some of it's pretty ugly, but I thought I'd get it out there on the off-chance someone else is feeling the same enthusiasm for what at this point is probably the most-used stack-based language in the world. (There are a lot of printers out thereā€¦ I didn't say most-used by humans.) Feature requests and bug reports welcome!

You can get the code at GitHub.

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