Examine individual changes

''''3var''' is an [[esoteric programming language]] designed by [[User:LuaGeek2412]], with the goal of being as capable as other esolangs, but being much easier to make an interpreter for. It is heavily inspired by esolang [[Deadfish]]. Suggestions are welcome. ==Language Overview== 3var has - you guessed it - 3 variables! All of them store integers. 2 of the variables are called the accumulators, and the third is called the result. The accumulators will be referred to as A and B, and the result as R. 3var has quite a few commands, all of which are a single ASCII character to fulfill the goal of being easy to interpret. These commands are: <pre> i Increments A d Decrements A s Squares A p Prints A P Prints the ASCII character associated with A x Sets A to the absolute value of A > Sets A to R a Increments B k Decrements B m Squares B o Prints B O Prints the ASCII character of B 0 Sets B to the absolute value of B < Sets B to R + Adds A and B, stores in R - Subtracts B from A, stores in R * Multiplies A and B, stores in R / Divides A by B, stores in R ^ Exponentiates A to the Bth power, stores in R w Prints R u Marks a conditional which executes only if a>b U Marks a conditional which executes only if a<b = Marks a conditional which executes only if a==b ( Starts an if statement body ) Ends an if statement body | Marks a loop which executes while a>b _ Marks a loop which executes while a<b \ Marks a loop which executes while a==b f Marks a loop which executes a times F Marks a loop which executes B times { Starts a loop which repeats forever } Ends a loop which repeats forever [ Starts a marked loop ] Ends a marked loop ' Takes a 1 character input from the user and stores the ASCII value of the character in R " Takes a number input from the user and stores it in R r Resets all variables to 0 @ Resets A to 0 # Rests B to 0 e Resets R to 0 $ Toggles comment ~ Starts a line comment ` Causes the interpreter to ignore the next character</pre> All other characters throw errors, unless enclosed in a comment. ==Language Standards== * Use of R as a full variable is discouraged, but allowed * All variables can contain any number ==Computational Class== 3var is Turing-complete if and only if its variables are unbounded. Bounds on the variables are not specified and therefore implementation-dependent.<sup>[''Proof?'']</sup> ==Examples== ===[[Hello, world! | Hello, World!]]=== Legitimate Hello, World! with the exclamation point and everything. <pre>iisssaa/>e maa->e# aamam->e# dddddddddddddddddddddddddPiiiiiiiiiiiiiiiiiiiiiiiii iiiiPiiiiiiiPPiiiP r iis aamaaaa *>P r iisssaa/>e maa->e# aamam->e# iiiiiiiiiiiiiiiiiiiiiiP ddddddddP iiiP ddddddP ddddddddP r iiss aa*> iP</pre> ===[[Cat]]=== This one is shorter. I promise. {'>P} Don't ask me to make it accept multiple characters before outputting. ===Countdown=== An example of a marked loop. Counts down from 100 to 1. iiisis |[ pd ] The first line sets the starting value for A (100). It then sets B to the minimum value. Then, while a>b, it outputs a and decrements it. ===Parity=== Takes a number input and calculates if it is even or odd. "> ~Take a number input and move it to a. |[ ~While a>b do... aa ~b+=2 ] =( ~if a==b... riiisisi `1`0`1 P `e r ) U( ~if b>a... riiisia+<*>i `1`1`1 P `o r ) Pretty self explanatory. ===Conditional Cat=== Copies input to output until a newline character is input. i ~Set a to 1 |[ ~While a>0 do... '<O ~Read in a character to b and output @iiisi ~Set a to 10 ->x ~Set a to |a-b| # ~Set b back to zero for loop condition ] ===99 Bottles of beer=== Prints 99 Bottles of beer in 3var aaa m a m k f [ o @ iii s s ddddd ddddd ddddd P @ iii s ii s ddddd ddddd P iiiii P P ddddd ddd P ddddd dd P iiiii iiiii iiii P @ iiiii i s dddd P @iii s ii s ddddd ddddd P ddddd dddd P @ iiiii i s dddd P iii s i s dd P iii P P iiiii iiiii iii P @ iiiii i s dddd P @ iii s ii s ddddd ddddd P d P @ iiiii i s dddd P @ iii s ii s ddddd P ddddd ddddd dd P ddd P @ iiiii i s dddd P @ iii s ii s dd P @ iii s i s ddd P iiiii iiiii i P P @ iiiii ii s ddddd P @ iiii s ddd P o @ iii s i s dd P @ iii s ii s ddddd ddddd P iiiii P P ddddd ddd P ddddd dd P iiiii iiiii iiii P @ iiiii i s dddd P @iii s ii s ddddd ddddd P ddddd dddd P @ iiiii i s dddd P iii s i s dd P iii P P iiiii iiiii iii P @ iiiii ii s ddd P @ iiii s ddd P @iii s i s ddddd ddddd ddddd d P iiiii iiiii iii P iiiii iiiii P ddddd d P @ iiiii i s dddd P @iii s i s iiiii iiiii i P d P ddddd dddd P @ iiiii i s dddd P @iii s i s P iiiii iiiii i P iiiii iii P ddddd dddd P @ iiiii i s dddd P iii s i s ddd P iiiii iiiii iii P ddddd ddddd P @ iiiii i s dddd P iiisi s iiiii iiiii ii P @ iii s i s ddd P @ iii s ii s ddddd d P P @ iiiii i s dddd P iii s i s iiiii P iiiii iiiii i P @ iiiii i s dddd P @ iii s i s ddd P @ iii s ii s ddddd dd P ddd P iiiii i P ddddd dd P ddddd ddddd P @ iiiii ii s ddddd P @ iiii s ddd P k o @ iii s s ddddd ddddd ddddd P @ iii s ii s ddddd ddddd P iiiii P P ddddd ddd P ddddd dd P iiiii iiiii iiii P @ iiiii i s dddd P @iii s ii s ddddd ddddd P ddddd dddd P @ iiiii i s dddd P iii s i s dd P iii P P iiiii iiiii iii P @ iiiii i s dddd P @ iii s ii s ddddd ddddd P d P @ iiiii i s dddd P @ iii s ii s ddddd P ddddd ddddd dd P ddd P @ iiiii i s dddd P @ iii s ii s dd P @ iii s i s ddd P iiiii iiiii i P P @ iiiii ii s ddd P @ iiii s ddd P P @ iii s i s dd ] ==External resources== *An [https://github.com/olls/3var-interpreter interpreter] written in C. [[Category:Languages]] [[Category:Implemented]]'