Leafscript

Leafscript is a lightweight programming language created as a proof of concept by someone with no idea how to write a language. It's written entirely in Golang, and was inspired by the speed and simplicity of Lua. It can be compiled from source to a binary .exe file using the command: go build Leafscipt

Usage

Programs can be run from the command line using the Leafscript binary file.

leafscript --run [PATH TO .lfs FILE] --debug [SET TO FALSE BY DEFAULT]

E.g.

leafscript --run program.lfs

Includes a basic debugger that prints a list of all variables every line. E.g.

leafscript --run program.lfs --debug true

Features

It supports:

Creating and modifying variables (strings, ints and floats)
Performing mathematical operations on numeric variables
String concatenation
For loops
If/else statements
Breaks in for loops
Nested if/for
Basic debugging mode that prints all variables every line

No plans to implement in near future

Array variables
Error messages

Examples

Ensure tabs are used to indent and not spaces. Spaces do not work

Additional language examples are contained within the "Examples" file

Find all the factors of a number

var number = inputint "Enter a number to find factors of: "

for x math number+1
	if math number%x == 0
		print concat math x & " is a factor of " & math number
	endif
endfor

Print all binary numbers from 0 to 15

for x 2
	for y 2
		for z 2
			for i 2
				print concat math x & " " & math y & " " & math z & " " & math i
			endfor
		endfor
	endfor
endfor

Print all primes up to a given number

var number = inputint "Enter a number to find primes up to: "
var total = 0

for x math number
	var y = 0
	for i math x
		if math x%i == 0
			var y = math y+1
		endif
	endfor

	if math y < 2
		print concat math x & " is prime"
		var total = math total+1
	endif
endfor

print concat math total & " primes found"

Changelog

v1.0

Initial release

v1.1

Modified command line interface to use more robust argparse library
Added ability to package .lfs files to .exe using PackageFile.exe

v1.1.1

Fixed imports

v1.2

Removed poor implementation of packaging files to binary

odddollar / Leafscript