PISW

PISW(Paradigm Is String-Rewriting) is an extremely simplified esolang by User:A.

Syntax

It has 2 parts:

Fun
Str

The Box Fun

This is the function defenition. Like:

x + y = x- + y+

It changes something like:

2 + 3

into

s(2 + 3)

. The x and ys are the values for the function. It will be checked one by one.

Addition & Subtraction

add + on the back to increment 1.
add - on the back to decrement 1.

Last steps

The string on str will be printed.

Example

Addition:

Fun:
   x + y = x- + y+
   0 + x = x
Str:
   2 + 1002

Hello, world

Fun:
Str:
   Hello, world

Truth-machine

Fun:
   1 = 11
   0 = 0
Str:
   This can be one or zero, anything the user likes.

CAT program

Fun:
Str:
   Any input the user liked.