FGScript

A macro system for Flowgorithm internal file format.

# Comments outside of the function are ignored
# (They will not appear in the generated file)
fn Main () _ None
	# Comments are allowed only at the beggining of the line
	var n Integer
	
	println "Write a number:"
	scan n
	
	println "Fibonacci: " & Fibonacci(n)
end

fn Fibonacci (n Integer) x Integer
	# We can define multiple variables at once
	var x y i Integer
	
	# Remember to always initialize variables before use
	set x 0
	set y 1
	
	# Loop n-1 times
	for i from 1 to n step 1
		# Expressions have the same syntax as in Flowgorithm
		set x x+y
		set y x-y
	end
end

Installation

go install github.com/mandriota/fgscript/cmd/fgscript@latest

Editors configuration

Emacs & Straight

(use-package fgscript-mode
  :straight (:type git :host github :repo "mandriota/fgscript"
                   :files ("editors/emacs/fgscript-mode.el")))