Simpl

Simple Programming Language written in Obj-C for my Programming Languages class

Comments

Comments in .simpl files are prefixed by "#!"

Functions

func :

• Declares a new function
• Takes unlimited arguments: functionName arguments
• Example usage: "func functionName add 2 1"

newline :

• Prints a new line
• Takes no arguments
• Example usage: "newline"

input :

• Takes in user input
• Takes 1 argument: prompt
• Example Usage: input please enter your name:
• Saves input in variable "In"

whatis :

• Prints the value of a given variable
• Takes 1 argument: variable name
• Example Usage: whatis X

loop :

• Repeats the next command the given number of times (> 0)
• Takes 1 argument: int
• Example usage: loop 5

var :

• Variables defined by strings starting with capital letters
• Sets the value of a new variable
• Takes 2 arguments: variable name, value
• Example usage: var X 2

pause :

• Pauses the program for a given amount of seconds
• Takes 1 argument: int
• Example usage: pause 3

add :

• Adds all given numbers and returns a value
• Takes unlimited arguments
• Example usage: add 1 2 3 4
• Stores result in "Sum" variable

subtract :

• Subtracts all given numbers and returns a value
• Takes unlimited arguments
• Example usage: subtract 4 3 2 1
• Stores result in "Difference" variable

help :

• Prints a help page
• Takes no arguments
• Example usage: help

print :

• Prints a line of text
• Takes unlimited arguments
• Example usage: print hello world

file :

• Reads a file from the system
• Takes 1 arguments
• Example usage: file /path/to/file.simpl

exit :

• Exits the program
• Takes no arguments
• Example usage: exit