small-programing-languge's Introduction

Small Lang

Small Lang is a small programming language

This language is small, as its name suggests. But it is also powerful as it follows the example of LISP in leveraging the expressive power of lambda functions.

Features

numbers
strings
variables
functions
lambda functions
other data types (like arrays and dictionaries) can be supported via adding runtime functions

Code Example

The following code example contains all of the features of the language:

print("Hello, world")
print("3 + 5 =" add(3 5))

hello = (subject) => {
    print(concat("Hello, " subject))
    print(concat("Hello, " subject))
}

doIt = () => {
    print("Do it!")
}

doIt()

hello("Brother")

classmates = split("Jerry Jordan Johnny Jack Jeffery" " ")

each(classmates (peep) =>
    print(concat("Hello " peep))
)

fib = (n) =>
    if(eq(n 1)
        () => 1
        () =>
            if(eq(n 2)
                () => 1
                () =>
                    add(
                        fib(subtract(n 1))
                        fib(subtract(n 2))
                    )
            )
        )

print(fib(9))

Todo List

parser
- define moo lexer
  - number literal
  - string literal
  - assignment operator
  - identifier
  - parans
  - braces
  - fat arrow
  - whitespace
  - newline
- make a parse.js that creates .ast files
- variable assignment
- function call
- multiple lines
- lambda function
- comments
generator
- make a generate.js that creates .js files
- variable assignment
- function call
- runtime functions
- lambda function
- comments
code challenges