Prompt

Prompt is a language inspired by the act of vibe coding, and hence made to mock it, therefore the name. Prompt is written as plain English, describing how the program works. Hence, anyone who can speak English can write valid Prompt as long as they use accepted commands.

Examples

Hello World

Print "Hello world!" to the screen and halt.

Fizzbuzz

Define fizz as 1. While fizz is under 100, check if fizz is divisible by 15. If fizz is divisible by 15, print "Fizzbuzz" to the screen. Otherwise, if fizz is divisible by 3, print "Fizz" to the screen. Otherwise, if fizz is divisible by 5, print "Buzz" to the screen. Otherwise, print fizz to the screen. Add 1 to fizz and repeat. Halt.

Cat

Define input as 1. While input does not match 0, put input in input. Then, print input to the screen. Halt.

Fun Video Game

Define game as 0. While input matches game, print input to the screen and add 1 to game. Otherwise, print "Failure!" to the screen and halt.

99 Bottles of Beer

Define bottles as 99. While bottles does not match 0, print bottles and " bottles of beer on the wall," twice. Then, print "Knock one down, spin it around," and subtract 1 to bottles. Otherwise, halt.

Digital Root Calculator

Define number as input. Subtract 1 from number, divide number by 9, find its remainder, and add one. Print number to the screen and halt.

Truth Machine

Define truth as input. If truth matches 0, print 0 and halt. If truth matches 1, print 1 forever.

Infinite Loop

While 0 matches 0, do nothing.

Factorial

Define base as input. Define line as base. While line does not match 0, multiply base by line and subtract one from line. Print base to the screen and halt.

Quine

Print "Print to the screen and halt." to the screen and halt.

Hypotenuse Finder

Define adjacent as input and define opposite as input. Square adjacent and opposite, and add adjacent and opposite together. Define hypotenuse as the square root of adjacent. Print hypotenuse to the screen and halt.