Codossa

Codossa is an esoteric programming language inspired by the linguistic experiment Viossa. It is an experiment for us to try to teach a programming language by writing programs with their expected inputs and outputs, without relying on natural language or other programming languages. Its aim is to be a functional, Turing-complete programming language.

Feel free to add any commands you desire, but please try to follow these rules:

• Please stick to the format:

   program
   input (if required) -> output

• Please make the instructions implementable and avoid adding commands with implementation-defined/UB cases.
• Commands should be fairly simple to understand. Try not to have any arbitrary edge cases such as "read a character from input, then store it, unless it is 'e', then do nothing".

Other than that, have fun!

Commands

>, <, i, d, o

   io
   -> 1

   iiiododododo
   -> 3 2 1 0 -1

   iiioiio
   -> 3 5

   iiio>oiiio<o
   -> 3 0 3 3

   i>d>i>do<o<o<o
   -> -1 1 -1 1

^, v

   ii^>vo
   -> 2

   iii^dddovo
   -> 0 3

   iii^ii^iovovo
   -> 6 5 3

   vo
   -> 0

z

   iiiiiiizo
   -> 0
  
   iiiziio
   -> 2

+,-

   iiiii^z +++++o
   -> 25

   iiiii^z ----o
   -> -20

c

   iiii iiii^ ++++ ++++ + c
   -> H

   iiii iiiii^ ++++ ++++ + c
   -> Q

r

   ro
   3 -> 3
   72 -> 72
   752text -> 752
   text -> 0
   -> 0

   roro
   33 -> 33 0
   3 3 -> 3 3
   3, 3 -> 3 3
   3text3 -> 3 3

   r^zr+o
   2 3 -> 5
   12 34 -> 46
   50 -50 -> 0

n, (, )

   rnz(io)
   1 -> 1
   2 -> 1 2
   3 -> 1 2 3
   0 ->
   -1 ->

   rn>r^z(+)o
   2 3 -> 6
   8 9 -> 72
   12 34 -> 408

   rnz(in(o))
   1 -> 1
   2 -> 1 2 2
   3 -> 1 2 2 3 3 3

   rnz(rnz>(i)<)>o
   1 1 -> 1
   2 3 4 -> 7
   5 10 20 30 40 50 -> 150