WuttyiOperators
An operator is something that takes one or more values (or expressions, in programming jargon) and yields another value (so that the construction itself becomes an expression).
Syntax
(<operator> <left> <right>)
Basic
Basic Math operators are supported.
+, -, *, /, %
Addition
lisp
(+ 10 20) // → 30
Subtraction
lisp
(- 10 20) // → -10
Multiplication
lisp
(* 10 20) // → 20
Division
lisp
(/ 100 20) // → 5
Modulus
lisp
(% 11 2) // → 1
Nested
lisp
(var x 100)
(var y 10)
(var z 5)
(* (+ x y) z) // -> 550
Comparison Operators
Basic comparison operators are supported.
lisp
>, <, >=, <=, =, neq (not equal to)
Example
lisp
(> 10 5) // true
(< 10 5) // false
(>= 10 5) // true
(<= 10 5) // false
(= 10 5) // false
(neq 10 5) //true
Logical Operators
lisp
and, or, not
lisp
(and true true) // true
(or true or false) // true
(not true) // false
(not (not true)) // true
Auto Increment and Decrement
Syntax
(<++|--> <expr>)
Example
lisp
(var i 10)
(++ i) // 11
(-- i) // 10
Increment and Decrement with custom value
Syntax
(<+=|-=> <expr>)
Example
lisp
(var i 10)
(+= i 10) // 20
(-= i 10) // 10