LoopScript

LoopScript (LS) is a simple esolang that only really uses loops that feed into each other (note: all variables start at zero)

commands:

+n add 1 to variable n
-n subtract 1 from variable n
%n set variable n to user input
$n output based on value of variable n (by default just the value of variable n)
(...)n while(n not equal to 0) loop

optional:

?n set variable n to random integer in set {1,2,...,n}

Programs

Cat program

+0(%1$1)0

Truth Machine

%1$1($1)1

Fibonacci sequence

%1+2((+4-2)2(+2+4-3)3(+3-4)4-1)1$3

n mod 2

%1(+3(-2-3)2(+2-3)3-1)1$2

floor(n/2)

%1+2(+3(-2-3)2(+0+2-3)3-1)1$0

2^n

%1+2((+3-2)2(+2-3)3-1)1$2

not a

%1+0(-0-1)1$0

a or b

%1%2(+3-1)1(+3-2)2(+0(-3)3)3$0

a and b

%1%2((+0-2)2-1)1$0