Add *.mus files

Pipfile

@@ -10,6 +10,7 @@ sounddevice = "*"
 soundfile = "*"
 numpy = "*"
 matplotlib = "*"
+tkinter = "*"
 
 [requires]
 python_version = "3.7"

examples/adeste.mus

@@ -0,0 +1,36 @@
+println("Adeste Fideles");
+println("John Francis Wade");
+
+s1 = [@g, @g:2, @d, @g, @a:2, @d:2, @h, @a, @h, @c5, @h:2, @a, @g];
+s2 = [@g:2, @f#, @e, @f#, @g, @a, @h, @f#:2, @e:4d, @d:8, @d:2d, 4];
+s3 = [@d5:2, @c5, @h, @c5:2, @h:2, @a, @h, @g, @a, @f#:4d, @e:8, @d];
+s4 = [@g, @g, @f#, @g, @a, @g:2, @d, @h, @h, @a, @h, @c5, @h:2, @a];
+s5 = [@h, @c5, @h, @a, @g, @f#:2, @g, @c5, @h:2, @a:4d, @g:8, @g:1];
+
+S = s1 + s2 + s3 + s4 + s5;
+
+a1 = [@d, @d:2, @d, @d, @e:2, @d:2, @d, @d, @d, @e, @d:2, @d, @h3];
+a2 = [@h3, @c#, @d, @c#, @d, @d, @d, @d, @d:2, @c#:4d, @d:8, @d:2d, 4];
+a3 = [@d:2, @e:8, @f#:8, @g, @g, @f#, @g:2, @d, @d, @e, @e, @d:2, @d];
+a4 = [@d, @d:1, @d:2d, @d, @d:1, @d:2d];
+a5 = [@g, @f#, @g, @d, @d:8, @c#:8, @d:2, @d, @e, @d:2, @d:4d, @h3:8, @h3:1];
+
+A = a1 + a2 + a3 + a4 + a5;
+
+t1 = [@h3, @h3:2, @h3, @h3, @c:2, @a3:2, @g3, @a3, @g3, @g3, @g3:2, @f#3, @g3];
+t2 = [@g3:2, @a3, @a3, @a3, @g3, @f#3, @d3, @a3:2, @g3:4d, @f#3:8, @f#3:2d, 4];
+t3 = [@h3:2, @c, @d, @c:2, @d:2, @d, @g3, @h3, @c, @a3:2, @f#3];
+t4 = [@h3, @h3, @a3, @h3, @c, @h3:2d, @g3, @g3, @f#3, @g3, @a3, @g3:2, @f#3];
+t5 = [@d, @d, @d, @a3, @a3, @a3:2, @g3:2, @g3:2, @f#3:4d, @g3:8, @g3:1];
+
+T = t1 + t2 + t3 + t4 + t5;
+
+b1 = [@g3, @g3:2, @h3, @g3, @g3:2, @f#3:2, @g3, @f#3, @g3, @c3, @d3:2, @d3, @e3];
+b2 = [@e3:2, @d3, @a2, @d3, @h2, @f#2, @g2, @a2:2, @a2:4d, @d3:8, @d2:2d, 4];
+b3 = [@h3:2, @a3, @g3, @a3:2, @g3:2, @f#3, @g3, @e3, @c3, @d3:2, @d3];
+b4 = [4, 1, 1, 1, 2, 4];
+b5 = [@g3, @a3, @g3, @f#3, @e3, @d3, @c3, @h2, @c3, @d3:2, @d3:4d, @g2:8, @g2:1];
+
+B = b1 + b2 + b3 + b4 + b5;
+
+synth({ tuning -> 431, attack -> 100, decay -> 1.2, overtones -> [0.7, 0, 0.2, 0.1] }, S, A, T, B);

examples/bohemian.mus

@@ -0,0 +1,42 @@
+println("Bohemian Rhapsody :: part");
+println("by Queen");
+
+m1 = [@d:8, @d:8, @d:2, 8, @b3:8, @c:8, @d:16, @d:16, @d, 4, 8, @d:16, @d:16];
+m2 = [@eb:8, @f:8, @eb:8, @d:8, @c, @c:8, @d:8, @eb:16, @f:8, @eb:8d, @d:8, @c, 4, @d:8, @d:8, @d:2, @d:8, @f:8];
+m3 = [@a:8d, @g:16, @g:2, 8, @g:8, @b:8, @b:8, @b:8, @b:8, @b:8d, @g:16, @d:8d, @c:16, @c:2, 2];
+M1 = [1, 1] + m1 + m2 + m3;
+
+p_B = [@d:8, @f3:8, @b3:8, @d:8, @g:8, @f3:8, @f:8, @f:8];
+p_g = [@d:8, @g3:8, @b3:8, @d:8, @a:8, @g3:8, @g:8, @b3:8];
+p_c = [@g:8, @c:8, @eb:8, @g:8, @d5:8, @c:8, @c5:8, @c:8];
+p_cF = [@b:8, @c:8, @eb:8, @g:8, @a:8, @eb:8, @f:8, @c:8];
+p1 = [@eb:8, @c:8, @eb:8, @g:8, @eb:8, @g:8, @eb:8, @g:8, @eb:8, @a3:8, @eb:8, @g:8, @eb:8, @g:8, @eb:8, @g:8];
+
+P1 = p_B + p_B + p_B + p_g + p_c + p_cF + p_B + p_g + p1;
+
+b1 = [@b3:1, @g3:1, @c3:1, @c3:2, @f3:2];
+b2 = [@b3:2d, @a3, @g3:1, @c3:2, @h2, @b2, @a2:2, @ab2, @g2];
+B1 = [@b3:1, @b3:1] + b1 + b2;
+
+# Eb
+m1 = [@g:16, @g:16, @g:2, 8, @f:8, @g:16, @ab:16, @g:2, 4, 8, @g:16, @g:16, @ab:8d, @g:16, @g:8, @f:16, @f:2, @b3:16];
+m2 = [@b3:8, @f:8, @f:8, @g:16, @g:8d, @ab:8, @ab:8, @b:16, @ab:16, @ab:8, @g:8, 8, @f:16, @g:16, @b:4d, @f:16, @g:16];
+m3 = [@eb:4d, @b3:16, @b3:16, @h3:8, @db:8, @h3:16, @db:16, @h3:8, @b3:2, 2];
+M2 = m1 + m2 + m3;
+
+p_Eb = [@b:8, @eb:8, @eb5:8, @eb:8, @b:8, @eb:8, @f:8, @b:8];
+p_f = [@ab:8, @f:8, @ab:8, @ab:8, @ab:8, @eb:8, @ab:8, @d:8];
+p_B = [@d, @f, @g, @ab];
+p_EbB = [@b:8, @eb:8, @eb5:8, @eb:8, @b:8, @d:8, @b:8, @d:8];
+p_cf = [@g:8, @c:8, @g:8, @c:8, @h3:2];
+P2 = p_Eb + p_c + p_f + p_B + p_EbB + p_cf;
+
+b1 = [@eb3:2d, @d3, @c3:1, @f3:4d, @e3:8, @eb3, @d3, @b2, @b2, @b2, @b2, @eb3:2, @d3:2];
+b2 = [@c2:2, @f2:2, @eb2:2, 2];
+B2 = b1 + b2;
+
+M = M1 + M2;
+P = P1 + P2;
+B = B1 + B2;
+
+synth({ tuning -> 432, bpm -> 72, overtones -> [0.5, 0.3, 0.15, 0.05], decay -> 0.8 }, transpose(12, M), P, B);

examples/cantina.mus

@@ -0,0 +1,120 @@
+println("Star Wars :: Cantina Band");
+println("by John Williams");
+
+cb1 = [@a, @d5, @a, @d5] + [@a:8, @d5, @a:8, 8, @g#:8, @a];
+cb2 = [@a:8, @g#:8, @a:8, @g:8, 8, @f#:8, @g:8, @gb:8];
+cb3 = [@f:4d, @d:2, 8];
+cb4 = [@g:8, 8, @g:4d, @f#:8, @g];
+cb5 = [@c5:8, @b, @a, @g:4d];
+cb6 = [@c5:8, 8, @c5:4d, @a:8, @g];
+cb7 = [@f:4d, @d:2, 8];
+cb8 = [@d:2, @f:2, @a:2, @c5:2];
+cb9 = [@eb5, @d5, @g#:8, @a, @f:8];
+
+CB1 = cb1 + cb2 + cb3 + cb1 + cb4 + cb5 + cb1 + cb6 + cb7 + cb8 + cb9 + [1];
+
+cb11 = 2 ^ [8, @a5, @f5:8, @a5:8, 8, 4];
+cb12 = [8, @a5, @f5:8, @g#5:8, @a5, @f5:8];
+cb13 = [@f5:4d, @d5:2, 8];
+cb14 = [8, @a5, @f5:8, @g#5:8, @a5, @g5:8];
+cb15 = [@g5:2, @c5:2];
+cb16 = [@b:8, @d5:8, @f5, @h:8, @d5:8, @f5];
+cb17 = [@g#:8, @a5, @d5:2, 8];
+cb18 = [@d:8, @f:8, @h:8, @d5:8, @g#:8, @a, @f:8];
+cb19 = [@f:2d, 4];
+
+CB2 = cb11 + cb12 + cb13 + cb11 + cb14 + cb15 + cb11 + cb12 + cb13 + cb16 + cb17 + cb18 + cb19;
+
+cb20 = [@f, 8, @ab, @f:8, @g];
+cb21 = [8, @f:8, @ab:8, @f:8, @g:8, @f:8, @ab:8, @d:8];
+cb22 = [@f, 8, @ab, @f:8, @g];
+cb23 = [@f:8, @f:8, @ab:8, @f:8, @g:8, @f:8, @ab:8, @f:8];
+cb24 = [@g:8, @f:8, @ab:8, @f:8, @g:8, @f:8, @ab:8, @d:8];
+cb25 = [@f:8, @f:8, @ab:8, @f:8, @ab:8, @f, @f:8, @f:2d, 4];
+
+CB3 = cb20 + cb21 + cb22 + cb21 + cb22 + cb21 + cb23 + cb24 + cb22 + cb21 + cb22 + cb21 + cb22 + cb21 + cb25;
+
+cb26 = [@c5, 8, @e5:8, 4, @g5];
+cb27 = [@g5:8, @g5, @g5:8, @g5, @e5:8, @c5:8];
+cb28 = [@f5, @f5:8, @f5:8, @f5:8, @g5, @a5:8, @a5:1];
+cb29 = [@e5, @e5, @g5:8, @g5, @c5:8];
+cb30 = [@c5:8, @e5, @c5:8, @e5, @g5];
+cb31 = [@f5, @f5:8, @f5, @g5, @a5:8, @a5:1];
+cb32 = [@b5, @b5, @d6, @b5:8, @db6:8];
+cb33 = [@db6:8, @db6:8, @b5, @db6, @b5];
+cb34 = [@f5, @f5, @f5:8, @ab5, @d6:8, @d6:1];
+cb35 = [8, @b, @d5:8, @g5, @g5];
+cb36 = [8, @e5, 8, @e5, @e5];
+cb37 = [8, @f5, @f5:8, @f5, @f5:8, @f5:8];
+cb38 = [@f5:8, @f5, @f5:8, @f5:8, @f5:8, @f5];
+
+CB4 = cb26 + cb27 + cb28 + cb29 + cb30 + cb31 + cb32 + cb33 + cb34 + cb35 + cb36 + cb37 + cb38;
+
+cb39 = [@ab:8, @gb:8, @ab:8, @gb:8, @ab:8, @gb:8, @ab:8, @gb:8];
+cb40 = [@ab:8, @db5, @ab:8, @db5, @ab:8, @db5:8];
+cb41 = [8, @ab:8, @b:8, @h:8, @c5:8, @h:8, @b:8, 8];
+cb42 = [@ab:8, @db5, @ab:8, @db5, @ab:8, @a:8];
+cb43 = [@b:8, @a:8, @b:4d, @a:8, @b:8, @a:8];
+cb44 = [@b:8, @a:8, @b:8, @h:8, @c5:8, 8, @gb:8, @g:8];
+cb45 = [@b:8, @a:8, @b:4d, @a:8, @b:8, @h:8];
+cb46 = [@c5:8, @g:8, @e:8, @c:8, 8, @c:8, @db:8, @c:8];
+cb47 = [@db:8, @b3, @db:8, @fb:8, @db, @fb:8];
+cb48 = [@f:8, @e:8, @f:8, @gb:8, @g:8, @c, @g:8];
+cb49 = [@ab:8, @g:8, @ab:8, @a:8, @b:8, @a:8, @b:8, @h:8];
+cb50 = [@c5:8, @c5:8, 4, @c5:8, @c5:8, 4];
+cb51 = [@c5, @e5:2, @f5:8, @db5:8];
+cb52 = [@ab:8, @f:8, @fb:8, @eb:8, @d:8, 4, @gb:8];
+cb53 = [@c5:8, @c5, @gb:8, @c5:8, @c5, @h:8];
+cb54 = [@c5:8, @c5, @h:8, @c5:8, @c5, @c5:8];
+cb55 = [@db5:8, @fb:8, @db5:4d, @fb:8, @db5:8, @fb:8];
+cb56 = [@db5:8, @fb:8, @db5:8, @fb:8, @eb:8, @c5, @c5:8];
+cb57 = [@db5:8, @fb:8, @db5:8, @fb:8, @eb:8, @c5, @h3:8];
+cb58 = [@b3:8, @db:8, @gb:8, @b:8, @c:8, @e:8, @g:8, @c5:8];
+cb59 = [@db5:8, @db, @c:8, @db, 4];
+cb60 = [4, @a3, @b3, @a3, @b3, @a3, @gb3:8, @f3:8, @d3:8, 8];
+cb61 = [8, @a3, @a3, @a3, @a3, @a3, @a3:8, @a3:8, @a3];
+
+CB5 = cb39 + cb40 + cb41 + cb39 + cb42 + cb43 + cb44 + cb39 + cb42 + cb45 + cb46 + cb47 + cb48 + cb49 + cb50 + cb50 + cb51 + cb52 + cb53 + cb54 + cb55 + cb56 + cb55 + cb56 + cb55 + cb57 + cb58 + cb59 + cb60 + cb60 + cb60;
+
+CB = CB1 + CB2 + CB3 + (2 ^ CB4) + CB5;
+
+b1 = (3 ^ [@d3, 4, @a2, 4]) + [@f3, 4, @c3, 4, @d3, 4, @a2, 4, @d3, 4, @a2, 4, @g2, 4, @g2, 4];
+b2 = [@c3, @d3, @d#3, @e3, @d3, 4, @a2, 4, @d3, 4, @a2, 4, @c3, 4, @c3, 4];
+b3 = [@f3, 4, @c3, 4, @b2, 4, @b2, 4, @f3, 4, @d3, 4, @g3, 4, @c3, 4, @f3, @e3, @d3, @c3];
+
+B1 = b1 + b2 + b3;
+
+b4 = (3 ^ [@d3, 4, @a2, 4]) + [@d3:4d, @g#2:4d, @a2];
+b5 = (3 ^ [@d3, 4, @a2, 4]) + [@eb3:2, @c3, @c3];
+b6 = (4 ^ [@d3, 4, @a2, 4]);
+b7 = [@b2:8, @b2:8, 4, @h2:8, @h2:8, 4, @c3:4d, @d3:8, 8, @d3:8, @d3, @g2, 4, @c3:4d, @f3:4d, @e3, @d3, @c3];
+
+B2 = b4 + b5 + b6 + b7;
+
+b8 = 3 ^ [@d3, @c3, @b2, @a2, @g2, @f2, @e2, @d2];
+b9 = [@d3, 4, 2, 2, 4, @a2];
+b10 = [@d3, @b2, @a2, @a2, @d3:8, 8, 4, 2];
+
+B3 = b8 + b9 + b8 + b10;
+
+b11 = [@c3, 4, @g2, 4, @c3, 8, @b2:4d, @g2, @f2, 4, @c3, 4, @f3, 8, @e3:4d, @d3];
+b12 = [@c3, 4, @g3, 4, @c3, 8, @b2:4d, @g2, @f2, 4, @c3, 4, @d3, 8, @f#2:4d, @a2];
+b13 = [@b2, 4, @b2, 4, @h2, 4, @h2, 4, @c3, 4, @c3, 4, @d3, 8, @d3:4d, @f#2];
+b14 = [@g2, 4, @d3, 4, @c3, 8, @c3:4d, @g3, @f3, 4, @db3, 4, @f3, @f3, @e3, @d3];
+
+B4 = b11 + b12 + b13 + b14;
+
+b15 = [@db3, @c3, @b2, @ab2, @gb2, @f2, @eb2, @db2, @db3, @b2, @a2, @ab2];
+b16 = [@db3, @c3, @b2, @ab2, @gb2, @f2, @eb2, @db2, @eb2, @e2, @f2, @gb2];
+b17 = [@e2, @d2, @h2, @ab2, @h2, @ab2, @f2, @eb2, @db2, @c2, @b1, @ab1];
+#                            ^ or B?
+b18 = [@gb2, @gb2, @gb2, @db3, @c3, @c3, @e3, @g3, @gb3, @gb3, @g3, @g3];
+b19 = [@ab3, @db3, @c3, @c3, @f3, @c3, @gb3, @gb3, @c3, 4, @c3, 4];
+b20 = [@f3, 4, @f3, 4, @c3, @c3, 4, @db3:8, @f3:8, @ab3:8, @a3:8, @b3:8, @h3:8, @c:8, 8, 8, 16, @g3:16];
+b21 = [@c3, 4, @c3, 4, @f3, 4, @f3, 4, @gb2, 4, @ab2, 4, @a2, 4, @db3, 4, @gb2, 4, @ab2, 4, @a2, 4, @db3, 4, @d, 4, @eb, 4];
+b22 = [@e3, 4, @f3, 4, @gb3, 4, @g3, 4, @db3, 4, @db3, 4];
+B5 = b15 + b16 + b17 + b18 + b19 + b20 + b21 + b22;
+
+B = B1 + B2 + B3 + (2 ^ B4) + B5;
+
+synth({ tuning -> 432, bpm -> 270 }, flat(CB), flat(B));

examples/les_anges.mus

@@ -0,0 +1,31 @@
+println("Les Anges dans nos campagnes");
+
+s = [@a, @a, @a, @c5, @c5:4d, @b:8, @a:2, @a, @g, @a, @c5, @a:4d, @g:8, @f:2];
+sc = [@c5:2, @d5:8, @c5:8, @b:8, @a:8, @b:2, @c5:8, @b:8, @a:8, @g:8, @a:2, @b:8, @a:8, @g:8, @f:8, @g:4d, @c:8, @c:2, @f, @g, @a, @b];
+sca = [@a:2, @g, 4];
+scb = [@a:2, @g:2, @f:2d, 4];
+
+S = flat(2^s, sc, sca, sc, scb);
+
+a = [@f, @f, @e, @e, @g, @e, @f:2, @f, @e, @f, @f, @f, @e, @f:2];
+ac = [@f, @a:8, @g:8, @f:2d, @g:8, @f:8, @e:2d, @f:8, @e:8, @d:2, @c:4d, @c:8, @c:2, @c, @e, @f, @g];
+aca = [@f:2, @e, 4];
+acb = [@f:2, @e:2, @c:2d, 4];
+
+A = flat(2^a, ac, aca, ac, acb);
+
+t = [@c, @c, @c, @c, @d, @c, @c:2, @c, @c, @c, @c, @c:4d, @b3:8, @a3:2];
+tc = [@a3:2, @d:1, @c:1, @b3:2, @g3, @f3, @e3:2, @f3, @c, @c, @d];
+tca = [@c:2, @c, 4];
+tcb = [@c:2d, @b3, @a3:2d, 4];
+
+T = flat(2^t, tc, tca, tc, tcb);
+
+b = [@f3, @f3, @a3, @a3, @g3, @c3, @f3:2, @f3, @c3, @f3, @a3, @c, @c3, @f3:2];
+bc = [@f3:2, @d3, @f3, @g3:2, @c3, @e3, @f3:2, @b2, @d3, @e3, @d3, @c3, @b2, @a2, @c3, @f3, @b2];
+bca = [@c3:2, @c3, 4];
+bcb = [@c3:1, @f3:2d, 4];
+
+B = flat(2^b, bc, bca, bc, bcb);
+
+synth({ tuning -> 432, overtones -> [0.6, 0.3, 0.07, 0.03], attack -> 200, decay -> 0.6 }, S, A, T, B);

examples/per_crucem.mus

@@ -0,0 +1,18 @@
+println("Per Crucem - canon");
+
+d1 = [@d:2, @d:2, @c:2, @f:4d, @f:8, @f, @f, @e, @d, @e:2, @d:2];
+d2 = [@d:8, @f:8, @a:8, @d5:8, @b:8, @a:8, @g, @c:8, @e:8, @g:8, @c5:8, @a:8, @g:8, @f, @b3:8, @d:8, @f:8, @b:8, @g:8, @f:8, @e, @a, @e, @f:2];
+d3 = [@a:2, @b:2, @c5:2, @a:4d, @a:8, @b, @f, @g, @g, @a, @e, @f:2];
+d4 = [@d5:8, @c5:8, @b:8, @a:8, @g:8, @a:8, @b, @c5:8, @b:8, @a:8, @g:8, @f:8, @g:8, @a, @b:8, @a:8, @g:8, @f:8, @e:8, @f:8, @g, @a, @e, @f:2];
+d5 = [@d5:2, @d5:2, @c5:2, @c5:2, @d5:8, @c5:8, @b:8, @a:8, @b, @b, @a:2, @a:2];
+d6 = [@d:8, @d:8, @d:8, @d:8, @g:8, @g:8, @g, @c:8, @c:8, @c:8, @c:8, @f:8, @f:8, @f, @b3:8, @b3:8, @b3:8, @b3:8, @e:8, @e:8, @e, @a3, @a3, @d:2];
+
+p = [1, 1, 1, 1];
+
+S = d1 + d2 + d3 + d4 + d5 + d6 + d1 + d2 + d3;
+A = p  + d1 + d2 + d3 + d4 + d5 + d6 + d1 + d2;
+T = p  + p  + d1 + d2 + d3 + d4 + d5 + d6 + d1;
+B = p  + p  + p  + d1 + d2 + d3 + d4 + d5 + d6;
+
+wv = wave(S, A, transpose(-12, T), transpose(-12, B));
+synth(wv);

examples/quem_pastores.mus

@@ -0,0 +1,31 @@
+println("Narodził się nam Zbawiciel / Quem pastores laudavere");
+println("mel.: XIV w.");
+println("sł.: XV - XVI w.");
+println("harm.: Bartłomiej Pluta");
+
+s1 = [@f:2, @a, @c5:2, @a, @c5:2, @d5, @c5, @g:2];
+s2 = [@a:2, @c5, @b:2, @g, @f:2, @d, @e, @c:2];
+s3 = [@a:2, @b, @c5:2, @d5, @c5:2, @g, @a, @f:2];
+s4 = [@b:2, @b, @a, @g, @a, @f, @d, @e, @f:2d];
+
+a1 = [@c:2, @f, @g:2, @f, @f, @g, @f, @f, @f, @e];
+a2 = [@f, @e, @eb, @d:2, @c, @d:2, @d, @c, @c, @b3];
+a3 = [@c:2, @c, @f, @d, @g, @g:2, @e, @e, @d:2];
+a4 = [@f:2, @f, @f, @e, @f, @c:2, @c, @c:2d];
+
+t1 = [@a, @b, @c5, @c5, @b, @c5, @a:2, @b, @a, @c5:2];
+t2 = [@c5:2, @a, @b:2, @c5, @d5, @c, @b, @g, @g:2];
+t3 = [@f, @a, @g, @a:2, @b, @b:2, @g, @g, @a:2];
+t4 = [@d5, @db5, @db5, @c5, @b, @a, @g:2, @b, @a:2d];
+
+b1 = [@f:2, @f, @e:2, @f, @f:2, @f, @c, @c:2];
+b2 = [@f:2, @f#, @g, @f, @e, @d, @f, @g, @c, @e:2];
+b3 = [@f:2, @e, @f, @f#, @g, @e, @d, @c, @c#, @d, @c];
+b4 = [@b3:2, @b, @c:2, @c, @c:2, @c, @f:2d];
+
+S = s1 + s2 + s3 + s4;
+A = a1 + a2 + a3 + a4;
+T = transpose(-12, t1 + t2 + t3 + t4);
+B = transpose(-12, b1 + b2 + b3 + b4);
+
+synth({ overtones -> [0.6, 0.25, 0.1] + (2 ^ 0.0) + [0.05], attack -> 50, decay -> 1 }, S, A, T, B);

smnp/ast/node/expression.py

@@ -113,11 +113,11 @@ def LoopParser(input):
     return Parser.allOf(
         ExpressionWithoutLoopParser,
         Parser.optional(loopParameters),
-        Parser.terminal(TokenType.DASH, createNode=Operator.withValue),
+        Parser.terminal(TokenType.CARET, createNode=Operator.withValue),
         StatementParser,
         Parser.optional(loopFilter),
         createNode=Loop.loop,
-        name="dash-loop"
+        name="caret-loop"
     )(input)
 
 

smnp/cli/parser.py

@@ -0,0 +1,23 @@
+import argparse
+
+VERSION = "0.1"
+DESCRIPTION = """
+    Simple Music Notation Processor is a command line tool enabling you to do some music stuff using custom domain-specific language.
+"""
+
+class CliParser(object):
+    def __init__(self):
+        self.parser = argparse.ArgumentParser(description=DESCRIPTION)
+        self.parser.add_argument('file', nargs='*', help='a file containing SMNP code')
+        self.parser.add_argument('-c', '--code', action='append', default=[], type=str, help='a string with SMNP code')
+        self.parser.add_argument('-m', '--mic',  action='store_true', help='test microphone level')
+        self.parser.add_argument('-C', '--config', type=argparse.FileType('-r'), help='a file containing settings (not implemented yet)')
+        self.parser.add_argument('-p', '--params', action='append', help='pass arguments to program (not implemented yet)')
+        self.parser.add_argument('-v', '--version', action='version')
+        self.parser.add_argument('--tokens', action='store_true', help='print tokens of parsed code')
+        self.parser.add_argument('--ast', action='store_true', help='print abstract syntax tree of parsed code')
+        self.parser.add_argument('--dry-run', action='store_true', help='don\'t execute passed code')
+        self.parser.version = VERSION
+
+    def parse(self):
+        return self.parser.parse_args()

smnp/library/code/main.mus

@@ -0,0 +1,492 @@
+function flat(list lists...) {
+    return _flat(lists as l ^ _flat(l, []), []);
+}
+
+function _flat(list l, list output) {
+    l as elem ^ {
+        if (typeOf(elem) == list) {
+            output = _flat(elem, output);
+        } else {
+            output = output + [elem];
+        }
+    }
+
+    return output;
+}
+
+extend note as n {
+    function withOctave(integer octave) {
+        return Note(n.pitch, octave, n.duration, n.dot);
+    }
+
+    function withDuration(integer duration) {
+        return Note(n.pitch, n.octave, duration, n.dot);
+    }
+
+    function withDot(bool dot) {
+        return Note(n.pitch, n.octave, n.duration, dot);
+    }
+
+    function toIntRepr() {
+        return n.octave * 12 + _pitchToNumber(n.pitch);
+    }
+
+    function transpose(integer value) {
+        return noteFromIntRepr(n.toIntRepr() + value, n.duration, n.dot);
+    }
+}
+
+function noteFromIntRepr(integer intRepr, integer duration, bool dot) {
+    pitch = _numberToPitch(mod(intRepr, 12));
+    octave = Integer(intRepr / 12);
+    return Note(pitch, octave, duration, dot);
+}
+
+function mod(integer a, integer b) {
+    return a - b * Integer(a/b);
+}
+
+function _pitchToNumber(string pitch) {
+    return _keysToIntMapper(
+        "C",
+        "CIS",
+        "D",
+        "DIS",
+        "E",
+        "F",
+        "FIS",
+        "G",
+        "GIS",
+        "A",
+        "AIS",
+        "H"
+    ).get(pitch);
+}
+
+function _keysToIntMapper(keys...) {
+    return Map(keys as (i, key) ^ [key, i]);
+}
+
+function _numberToPitch(integer number) {
+    return ["C", "CIS", "D", "DIS", "E", "F", "FIS", "G", "GIS", "A", "AIS", "H"].get(number);
+}
+
+function transpose(integer value, <note, integer, list<note, integer>> notes...) {
+    if (notes.size == 1) {
+        first = notes.get(0);
+        if (typeOf(first) == integer) {
+            return first;
+        } else if (typeOf(first) == note) {
+            return first.transpose(value);
+        } else if (typeOf(first) == list) {
+            return _transpose(value, first);
+        }
+    }
+
+    noteOrInteger = false;
+    lists = false;
+
+    notes as n ^ {
+        if (typeOf(n) == note or typeOf(n) == integer) {
+            noteOrInteger = true;
+            if (lists) {
+                throw "Mixing notes and integers with lists of them is not supported";
+            }
+        } else if (typeOf(n) == list) {
+            lists = true;
+            if (noteOrInteger) {
+                throw "Mixing notes and integers with lists of them is not supported";
+            }
+        }
+    }
+
+    output = [];
+    notes as n ^ {
+        if (typeOf(n) == integer) {
+            output = output + [n];
+        } else if (typeOf(n) == note) {
+            output = output + [n.transpose(value)];
+        } else if (typeOf(n) == list) {
+            output = output + [_transpose(value, n)];
+        }
+    }
+
+    return output;
+}
+
+function _transpose(integer value, list<note, integer> notes) {
+    output = [];
+    notes as n ^ {
+        if (typeOf(n) == integer) {
+            output = output + [n];
+        } else if (typeOf(n) == note) {
+            output = output + [n.transpose(value)];
+        }
+    }
+    return output;
+}
+
+function transposeTo(note target, <note, integer, list<note, integer>> notes...) {
+    if (notes.size == 1) {
+        first = notes.get(0);
+        if (typeOf(first) == integer) {
+            return first;
+        } else if (typeOf(first) == note) {
+            return _transposeTo(target, notes).get(0);
+        } else if (typeOf(first) == list) {
+            return _transposeTo(target, first);
+        }
+    }
+
+    noteOrInteger = false;
+    lists = false;
+
+    notes as n ^ {
+        if (typeOf(n) == note or typeOf(n) == integer) {
+            noteOrInteger = true;
+            if (lists) {
+                throw "Mixing notes and integers with lists of them is not supported";
+            }
+        } else if (typeOf(n) == list) {
+            lists = true;
+            if (noteOrInteger) {
+                throw "Mixing notes and integers with lists of them is not supported";
+            }
+        }
+    }
+
+    if (noteOrInteger) {
+        return _transposeTo(target, notes);
+    }
+
+    if (lists) {
+        return notes as n ^ _transposeTo(target, n);
+    }
+}
+
+function _transposeTo(note target, list<note, integer> notes) {
+    if (notes.size == 0) {
+        throw "Provide list with one note at least";
+    }
+
+    firstNote = notes.get(0);
+    semitones = semitones(firstNote, target);
+    return transpose(semitones, notes);
+}
+
+function tuplet(integer n, integer m, note notes...) {
+    if (n != notes.size) {
+        throw "Expected " + n.toString() + " notes exactly, whereas " + notes.size.toString() + " was passed";
+    }
+
+    return notes as x ^ x.withDuration(x.duration * n / m);
+}
+
+extend list as l with function contains(expectedValue) {
+    return (l as value ^ value % value == expectedValue).size > 0;
+}
+
+extend map as m {
+    function containsKey(expectedKey) {
+        return m.keys.contains(expectedKey);
+    }
+
+    function containsValue(expectedValue) {
+        return m.values.contains(expectedValue);
+    }
+
+    function contains(key, value) {
+        if (m.keys.contains(key)) {
+            return m.get(key) == value;
+        }
+
+        return false;
+    }
+}
+
+function sample(items...) {
+    if (items.size == 0) {
+        throw "Provide one item at least";
+    }
+
+    if (items.size == 1 and typeOf(items) == list) {
+        return items.get(0).get(rand(0, items.get(0).size-1));
+    }
+
+    return items.get(rand(0, items.size-1));
+}
+
+extend string as s with function join(list<string> l) {
+    output = "";
+    l as (index, item) ^ {
+        output = output + item;
+        if (index < l.size - 1) {
+            output = output + s;
+        }
+    }
+
+    return output;
+}
+
+function random(map<string><> items...) {
+    accumulator = 0;
+    items as (index, item) ^ {
+        if (item.size != 2) {
+            throw "Expected lists with two items: percent and value";
+        }
+
+        if (not item.containsKey("percent")) {
+            throw "Item " + (index+1).toString() + " does not have 'percent' key";
+        }
+
+        if (not item.containsKey("value")) {
+            throw "Item " + (index+1).toString() + " does not have 'value' key";
+        }
+
+        accumulator = accumulator + item.get("percent");
+    }
+
+    if (accumulator != 100) {
+        throw "Sum of first element of each item must be equal to 100";
+    }
+
+    accumulator = 0;
+    random = rand(0, 99);
+    items as item ^ {
+        accumulator = accumulator + item.get("percent");
+        if (random < accumulator) {
+            return item.get("value");
+        }
+    }
+}
+
+function semitones(<note, integer, list<note, integer>> notes...) {
+    noteOrInteger = false;
+    lists = false;
+
+    notes as n ^ {
+        if (typeOf(n) == note or typeOf(n) == integer) {
+            noteOrInteger = true;
+            if (lists) {
+                throw "Mixing notes and integers with lists of them is not supported";
+            }
+        } else if (typeOf(n) == list) {
+            lists = true;
+            if (noteOrInteger) {
+                throw "Mixing notes and integers with lists of them is not supported";
+            }
+        }
+    }
+
+    if (noteOrInteger) {
+        return _semitones(notes);
+    }
+
+    if (lists) {
+        output = [];
+        notes as n ^ {
+            output = output + [_semitones(n)];
+        }
+
+        #if (output.size == 1) {
+        #    return output.get(0)
+        #}
+
+        return output;
+    }
+
+    return [];
+}
+
+function _semitones(list<note, integer> notes) {
+    onlyNotes = notes as n ^ n % typeOf(n) == note;
+
+    if (onlyNotes.size == 2 and typeOf(onlyNotes.get(0)) == note and typeOf(onlyNotes.get(1)) == note) {
+        first = onlyNotes.get(0);
+        second = onlyNotes.get(1);
+        return second.toIntRepr() - first.toIntRepr();
+    }
+
+    if (onlyNotes.size < 2) {
+        throw "Provide 2 notes at least to evaluate semitones between them";
+    }
+
+    output = [];
+    range(1, onlyNotes.size-1) as i ^ {
+        output = output + [onlyNotes.get(i).toIntRepr() - onlyNotes.get(i-1).toIntRepr()];
+    }
+
+    return output;
+}
+
+function stringInterval(integer semitones) {
+    return [
+        "1",
+        "2m",
+        "2M",
+        "3m",
+        "3M",
+        "4",
+        "5d/4A",
+        "5",
+        "6m",
+        "6M",
+        "7m",
+        "7M"
+    ].get(semitones);
+}
+
+function interval(<note, integer, list<note, integer>> notes...) {
+    noteOrInteger = false;
+    lists = false;
+
+    notes as n ^ {
+        if (typeOf(n) == note or typeOf(n) == integer) {
+            noteOrInteger = true;
+            if (lists) {
+                throw "Mixing notes and integers with lists of them is not supported";
+            }
+        } else if (typeOf(n) == list) {
+            lists = true;
+            if (noteOrInteger) {
+                throw "Mixing notes and integers with lists of them is not supported";
+            }
+        }
+    }
+
+    if (noteOrInteger) {
+        semitones = _semitones(notes);
+        if (typeOf(semitones) == list) {
+            return semitones as n ^ stringInterval(n);
+        } else {
+            return stringInterval(semitones);
+        }
+    }
+
+    if (lists) {
+        output = [];
+        notes as n ^ {
+            semitones = _semitones(n);
+            if (typeOf(semitones) == list) {
+                output = output + [_semitones(n) as semitone ^ stringInterval(semitone)];
+            } else {
+                output = output + [stringInterval(semitones)];
+            }
+        }
+
+        #if (output.size == 1) {
+        #    return output.get(0);
+        #}
+
+        return output;
+    }
+
+    return [];
+}
+
+function noteRange(note a, note b, string filter = "all") {
+    filters = {
+        "all" -> [ "C", "CIS", "D", "DIS", "E", "F", "FIS", "G", "GIS", "A", "AIS", "H" ],
+        "diatonic" -> [ "C", "D", "E", "F", "G", "A", "H" ],
+        "chromatic" -> [ "CIS", "DIS", "FIS", "GIS", "AIS" ]
+    };
+
+    if (not filters.containsKey(filter)) {
+        throw "Unknown filter: '" + filter + "'";
+    }
+
+    notes = range(a.toIntRepr(), b.toIntRepr()) as intRepr ^ noteFromIntRepr(intRepr, a.duration, a.dot);
+    return notes as n ^ n % filters.get(filter).contains(n.pitch);
+
+}
+
+function range(<integer, float> a, <integer, float> b, <integer, float> step = 1) {
+    if (not (step > 0)) {
+        throw "Step should be greater than 0";
+    }
+
+    if (a > b) {
+        throw "Upper range value should be greater than lower or equal to";
+    }
+
+    output = [];
+
+    i = a;
+    i <= b ^ {
+        output = output + [i];
+        i = i + step;
+    }
+
+    return output;
+}
+
+function alert(<integer, bool> cycles = true, string melody = "beep", list<float, integer> overtones = [0.5, 0.0, 0.0, 0.5]) {
+    if (not [integer, bool].contains(typeOf(cycles))) {
+        throw "Provide 'true' or number of cycles as first argument";
+    }
+
+    if (typeOf(cycles) == integer) {
+        if (cycles < 1) {
+            throw "Number of cycles cannot be less than 1";
+        }
+    }
+
+    if (typeOf(cycles) == bool) {
+        if (not cycles) {
+            throw "Provide 'true' or number of cycles as first argument";
+        }
+    }
+
+    notes = {
+        "beep" -> [@c5:16, 32, @c5:16, 3],
+        "s1" -> noteRange(@c5:32, @g5:32),
+        "s2" -> _upDown(noteRange(@c5:32, @g5:32)),
+        "s3" -> [@a5:16, @d5:16],
+        "semitone" -> [@c5:16, @db5:16]
+    };
+
+    if (not notes.containsKey(melody)) {
+        throw "Unknown melody '" + melody + "'. Available: 'beep', 's1', 's2', 's3' and 'semitone'";
+    }
+
+    config = {
+        bpm -> 120,
+        decay -> 0.5,
+        attack -> 200,
+        overtones -> overtones
+    };
+
+    wave = wave(config, notes.get(melody));
+
+    cycles ^ synth(wave);
+}
+
+function _upDown(list l) {
+    return l + -l;
+}
+
+function metronome(integer bpm = 120, integer beats = 4, countMeasures = false) {
+    accent = wave({
+        overtones -> flat([0.5, 0.1, 10^0, 0.1, 10^0, 0.1, 20^0, 0.1, 25^0, 0.05, 25^0, 0.05]),
+        attack -> 0,
+        decay -> 5,
+        bpm -> bpm
+    }, @c);
+
+    beat = wave({
+        overtones -> flat([0.5, 10^0, 0.3, 10^0, 0.2]),
+        attack -> 0,
+        decay -> 100,
+        bpm -> bpm
+    }, @c);
+
+    measure = 1;
+    true ^ {
+        if (countMeasures) {
+            println(measure);
+            measure = measure + 1;
+        }
+        synth(accent);
+        beats - 1 ^ synth(beat);
+    }
+}

smnp/main.py

@@ -1,17 +1,38 @@
-import sys
+from smnp.cli.parser import CliParser
-
 from smnp.error.base import SmnpException
 from smnp.library.loader import loadStandardLibrary
+from smnp.module.mic.lib.detector.noise import NoiseDetector
 from smnp.program.interpreter import Interpreter
 
 
+def interpretFile(args, file):
+    stdLibraryEnv = loadStandardLibrary() if not args.dry_run else None
+    Interpreter.interpretFile(file, printTokens=args.tokens, printAst=args.ast, execute=not args.dry_run, baseEnvironment=stdLibraryEnv)
+
+
+def interpretString(args, string):
+    stdLibraryEnv = loadStandardLibrary() if not args.dry_run else None
+    Interpreter.interpretString(string, printTokens=args.tokens, printAst=args.ast, execute=not args.dry_run, baseEnvironment=stdLibraryEnv, source='<cli>')
+
+
 def main():
     try:
-        stdLibraryEnv = loadStandardLibrary()
+        parser = CliParser()
-        Interpreter.interpretFile(sys.argv[1], printTokens=False, printAst=False, execute=True, baseEnvironment=stdLibraryEnv)
+        args = parser.parse()
+
+        if args.mic:
+            nd = NoiseDetector()
+            nd.test()
+
+        for code in args.code:
+            interpretString(args, code)
+
+        for file in args.file:
+            interpretFile(args, file)
 
     except SmnpException as e:
         print(e.message())
 
     except KeyboardInterrupt:
         print("Program interrupted")
+

smnp/module/synth/__init__.py

@@ -1,4 +1,4 @@
-from smnp.module.synth.function import synth, pause, plot, compile
+from smnp.module.synth.function import synth, pause, plot, compile, fft
 
-functions = [ synth.function, pause.function, plot.function, compile.function ]
+functions = [ synth.function, pause.function, plot.function, compile.function, fft.function ]
 methods = []

smnp/module/synth/function/compile.py

@@ -12,6 +12,7 @@ DEFAULT_BPM = 120
 DEFAULT_OVERTONES = [0.4, 0.3, 0.1, 0.1, 0.1]
 DEFAULT_DECAY = 4
 DEFAULT_ATTACK = 100
+DEFAULT_TUNING = 440
 
 
 def getBpm(config):
@@ -72,16 +73,29 @@ def getAttack(config):
     return DEFAULT_ATTACK
 
 
+def getTuning(config):
+    key = Type.string("tuning")
+    if key in config.value:
+        tuning = config.value[key]
+        if not tuning.type in [Type.INTEGER, Type.FLOAT] or tuning.value < 0:
+            raise RuntimeException("The 'tuning' property must be non-negative integer or float", None)
+
+        return tuning.value
+
+    return DEFAULT_TUNING
+
+
 class Config:
-    def __init__(self, bpm, overtones, decay, attack):
+    def __init__(self, bpm, overtones, decay, attack, tuning):
         self.bpm = bpm
         self.overtones = overtones
         self.decay = decay
         self.attack = attack
+        self.tuning = tuning
 
     @staticmethod
     def default():
-        return Config(DEFAULT_BPM, DEFAULT_OVERTONES, DEFAULT_DECAY, DEFAULT_ATTACK)
+        return Config(DEFAULT_BPM, DEFAULT_OVERTONES, DEFAULT_DECAY, DEFAULT_ATTACK, DEFAULT_TUNING)
 
 
 _signature1 = varargSignature(listOf(Type.NOTE, Type.INTEGER))
@@ -114,8 +128,9 @@ def __function3(config, notes):
     overtones = getOvertones(config)
     decay = getDecay(config)
     attack = getAttack(config)
+    tuning = getTuning(config)
 
-    return compilePolyphony(rawNotes, Config(bpm, overtones, decay, attack))
+    return compilePolyphony(rawNotes, Config(bpm, overtones, decay, attack, tuning))
 
 
 _signature4 = varargSignature(ofTypes(Type.NOTE, Type.INTEGER), ofType(Type.MAP))
@@ -128,8 +143,9 @@ def __function4(config, notes):
     overtones = getOvertones(config)
     decay = getDecay(config)
     attack = getAttack(config)
+    tuning = getTuning(config)
 
-    return compilePolyphony([ notes ], Config(bpm, overtones, decay, attack))
+    return compilePolyphony([ notes ], Config(bpm, overtones, decay, attack, tuning))
 
 
 function = CombinedFunction(

smnp/module/synth/function/fft.py

@@ -0,0 +1,17 @@
+import numpy as np
+
+from smnp.function.model import Function
+from smnp.function.signature import signature
+from smnp.type.model import Type
+from smnp.type.signature.matcher.list import listOf
+
+_signature = signature(listOf(Type.FLOAT))
+def _function(env, signal):
+    raw = [ x.value for x in signal.value ]
+    N = len(raw)
+    fft = np.fft.fft(raw)/N
+    fft = fft[range(int(N/2))]
+    return Type.list([ Type.float(float(abs(x))) for x in fft ])
+
+
+function = Function(_signature, _function, 'fft')

smnp/module/synth/function/plot.py

@@ -10,4 +10,4 @@ def _function(env, wave):
     plot(rawWave)
 
 
-function = Function(_signature, _function, 'plotWave')
+function = Function(_signature, _function, 'plot')

smnp/module/synth/lib/wave.py

@@ -4,6 +4,7 @@ import matplotlib.pyplot as plt
 import numpy as np
 import sounddevice as sd
 
+from smnp.note.pitch import Tuning
 from smnp.type.model import Type
 
 FS = 44100
@@ -25,7 +26,8 @@ def play(wave):
 
 
 def compilePolyphony(notes, config):
-    compiledLines = [1 / len(notes) * compileNotes(line, config) for line in notes]
+    tuning = Tuning(config.tuning)
+    compiledLines = [1 / len(notes) * compileNotes(line, config, tuning) for line in notes]
     return sum(adjustSize(compiledLines))
 
 
@@ -35,17 +37,17 @@ def adjustSize(compiledLines):
     return [np.concatenate([line, np.zeros(maxSize - len(line))]) for line in compiledLines]
 
 
-def compileNotes(notes, config):
+def compileNotes(notes, config, tuning):
     dispatcher = {
-        Type.NOTE: lambda note, overtones: sineForNote(note.value, config),
+        Type.NOTE: lambda note, overtones: sineForNote(note.value, config, tuning),
         Type.INTEGER: lambda note, overtones: silenceForPause(note.value, config)
     }
 
     return np.concatenate([dispatcher[note.type](note, config) for note in notes])
 
 
-def sineForNote(note, config):
+def sineForNote(note, config, tuning):
-    frequency = note.toFrequency()
+    frequency = note.toFrequency(tuning)
     duration = 60 * 4 / note.duration / config.bpm
     duration *= 1.5 if note.dot else 1
     return sound(frequency, duration, config)

smnp/module/system/function/read.py

@@ -47,7 +47,7 @@ def getValueAccordingToType(value, type):
 
             raise ValueError()
 
-        raise RuntimeException(f"Type {type.value.name.lower()} is not suuported", None)
+        raise RuntimeException(f"Type {type.value.name.lower()} is not supported", None)
 
     except ValueError:
         raise RuntimeException(f"Invalid value '{value}' for type {type.value.name.lower()}", None)

smnp/note/model.py

@@ -16,8 +16,8 @@ class Note:
         self.duration = duration    
         self.dot = dot        
     
-    def toFrequency(self):
+    def toFrequency(self, tuning):
-        return self.note.toFrequency() * 2 ** self.octave
+        return tuning[self.note] * 2 ** self.octave
     
     def transpose(self, interval):
         origIntRepr = self._intRepr()

smnp/note/pitch.py

@@ -2,6 +2,7 @@ from enum import Enum
 
 from smnp.error.note import NoteException
 
+_semitone = 2**(1/12)
 
 class NotePitch(Enum):
     C = 0
@@ -17,21 +18,21 @@ class NotePitch(Enum):
     AIS = 10
     H = 11
 
-    def toFrequency(self):
+    # def toFrequency(self):
-        return {
+    #     return {
-            NotePitch.C: 16.35,
+    #         NotePitch.C: 16.35,
-            NotePitch.CIS: 17.32,
+    #         NotePitch.CIS: 17.32,
-            NotePitch.D: 18.35,
+    #         NotePitch.D: 18.35,
-            NotePitch.DIS: 19.45,
+    #         NotePitch.DIS: 19.45,
-            NotePitch.E: 20.60,
+    #         NotePitch.E: 20.60,
-            NotePitch.F: 21.83,
+    #         NotePitch.F: 21.83,
-            NotePitch.FIS: 23.12,
+    #         NotePitch.FIS: 23.12,
-            NotePitch.G: 24.50,
+    #         NotePitch.G: 24.50,
-            NotePitch.GIS: 25.96,
+    #         NotePitch.GIS: 25.96,
-            NotePitch.A: 27.50,
+    #         NotePitch.A: 27.50,
-            NotePitch.AIS: 29.17,
+    #         NotePitch.AIS: 29.17,
-            NotePitch.H: 30.87
+    #         NotePitch.H: 30.87
-        }[self]
+    #     }[self]
 
     def __str__(self):
         return self.name
@@ -50,6 +51,14 @@ class NotePitch(Enum):
         raise NoteException(f"Note '{string}' does not exist")
 
 
+class Tuning(object):
+    def __init__(self, a4=440):
+        self.tuning = { value: a4/_semitone**(57-i) for i, value in enumerate(NotePitch.__members__) }
+
+    def __getitem__(self, item):
+        return self.tuning[str(item)]
+
+
 stringToPitch = {
     'cb': NotePitch.H,
     'c': NotePitch.C,

smnp/runtime/evaluators/function.py

@@ -51,7 +51,7 @@ class ReturnEvaluator(Evaluator):
             # Disclaimer
             # Exception system usage to control program execution flow is really bad idea.
             # However because of lack of 'goto' instruction equivalent in Python
-            # there is to need to use some mechanism to break function execution on 'return' statement
+            # there is a need to use some mechanism to break function execution on 'return' statement
             # and immediately go to Environment's method 'invokeFunction()' or 'invokeMethod()',
             # which can handle value that came with exception and return it to code being executed.
         else:

smnp/runtime/evaluators/power.py

@@ -18,4 +18,4 @@ class PowerEvaluator(Evaluator):
         if not right.type in supportedTypes:
             raise RuntimeException(f"Operator '{node.operator.value}' is supported only by {[t.name.lower() for t in supportedTypes]} type", node.right.pos)
 
-        return Type.integer(int(left.value ** right.value))
+        return Type.float(float(left.value ** right.value))

smnp/token/tokenizer.py

@@ -36,7 +36,7 @@ tokenizers = (
     defaultTokenizer(TokenType.SLASH),
     defaultTokenizer(TokenType.MINUS),
     defaultTokenizer(TokenType.PLUS),
-    defaultTokenizer(TokenType.DASH),
+    defaultTokenizer(TokenType.CARET),
     defaultTokenizer(TokenType.DOTS),
     defaultTokenizer(TokenType.AMP),
     defaultTokenizer(TokenType.DOT),

smnp/token/type.py

@@ -21,7 +21,7 @@ class TokenType(Enum):
     SLASH = '/'
     MINUS = '-'
     PLUS = '+'
-    DASH = '^'
+    CARET = '^'
     DOTS = '...'
     AMP = '&'
     DOT = '.'