Started implementation of function parsing

test.vb

@@ -12,3 +12,8 @@ end
 
 var peiv as array of 2 triangle
 const perico as number = 4-peiv[1].a.x * peiv[0].c.y[2]
+
+function tarari(a as number, b as number) as number
+    var x as number
+end
+