<# File: vars.falak
   Example using global and local variables.
   (C) 2021 Ariel Ortiz, ITESM CEM.
#>

var a;

x(b) {
    var c;
    c = 5;
    prints("Function x\n");
    prints("a = ");
    printi(a);
    println();
    prints("b = ");
    printi(b);
    println();
    prints("c = ");
    printi(c);
    println();
}

var b, c;

main() {
    var x;
    a = 1;
    b = 2;
    c = 3;
    x = 4;
    x(x);
    prints("Function main\n");
    prints("a = ");
    printi(a);
    println();
    prints("b = ");
    printi(b);
    println();
    prints("c = ");
    printi(c);
    println();
    prints("x = ");
    printi(x);
    println();
}

<#

This program should print:

Function x
a = 1
b = 4
c = 5
Function main
a = 1
b = 2
c = 3
x = 4

#>