Concatenative Programming @programming.dev Andy @programming.dev 4 mo. ago

remokasu/stacker: command-line RPN calculator with an RPN-based scripting language (on PyPI)

github.com GitHub - remokasu/stacker: Stacker is a command-line calculator that uses reverse Polish notation (RPN) for mathematical calculations and features an RPN-based scripting language.

Stacker is a command-line calculator that uses reverse Polish notation (RPN) for mathematical calculations and features an RPN-based scripting language.　 - remokasu/stacker

GitHub - remokasu/stacker: Stacker is a command-line calculator that uses reverse Polish notation (RPN) for mathematical calculations and features an RPN-based scripting language.

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6 comments

how does that compare to Hy besides being more domain specific and the order of operations (prefix vs suffix notation)?
- I've never used Hy. Does it offer any concatenative-style interaction?
  
  it's uses standard lispy operator-operands order see https://learnxinyminutes.com/docs/hy
  
  So it looks like a totally different data flow style, and (I think) geared toward writing then running programs, whereas Stacker is more for interactive stack-oriented calculator tasks.
  
  lisps are very repl-driven too
  
  I'd say an important part of this calculator's interaction model is doing something, getting a result, then doing something else to that result. That's not too bad in the regular Python interpreter either.
  
  For example, in Python:
  
  >>> 5 5 >>> 4 + _ 9 >>> 2 * _ 18
  
  In Stacker:
  
  >>> 5 [5] >>> 4 + [9] >>> 2 * [18]
  
  Does Hy have something like the Python interpreter's _?

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