(StackLisp)
version “0.1.0”
—
Documentation & examples

This is the documentation for the StackLisp programming language (version 0.1.0 only). Feel free to post questions and programs here as well!

Builtin functions

Operators: +, -, *, /, =, !=, <, >, <=, >=
Example

(= (+ (* 2 3) 5) 11)

Booleans: and, or, not
Example

(or false (and (not false) true))

Input & output: print, get-input, clear
Example

(print (+ "Hello, " (get-input "What is your name? ")))

Special forms

Define: (define name value)
Bind a variable to a value.

Example

(define code (get-input "Enter your savecode: "))

If: (if condition true-body false-body)
Run code based on a condition.

Example

(if (= (+ 1 2) 3) (print "1 + 2 = 3") (print "!?"))

When: (when condition *body)
Similar to if, but without a false body.

Example

(when (= score 10) (define coins (+ coins 1)))

While: (while condition *body)
Execute a block of code until the condition is false.

Example

(define i 0)
(while (< i 10)
  (print i)
  (define i (+ i 1)))

Forever: (forever *body)
Execute a block of code forever.

Example

(forever (print "Looping forever!"))

Do: (do *body)
Fit multiple statements in one; useful for if.

Example

(define adding true)
(if adding
  (do
    (print "Adding")
    (+ 1 1))
  (do
    (print "Subtracting")
    (- 3 2)))

More coming in version 0.2.0!

Documentation for version 2: https://scratch.mit.edu/discuss/topic/599002/