debug prints

src/main.zig

@@ -2,7 +2,7 @@ const std = @import("std");
 const mem = std.mem;
 
 
-const Symbol = enum {
+const Symbol = enum(u2) {
     M,
     U,
     I
@@ -32,11 +32,15 @@ pub fn main() !void {
         std.debug.print("curr/total {d}/{d}, \n", .{count, bag.items.len});
 
         count = bag.items.len;
-        for(bag.items)|string|{
+        var currentBatch = bag.items;
+        std.debug.print("testing strings: {any}\n", .{currentBatch});
+
+
+        for(currentBatch)|string|{
             std.debug.print("Testing: {any}\n", .{string});
 
-            //if(rule1Test(string)){ try bag.append(try rule1(string)); }
-            if(rule1Test(string)){ try addToBag(bag,string);}
+            if(rule1Test(string)){ try bag.append(try rule1(string)); }
+            //if(rule1Test(string)){ try addToBag(bag,string);}
             if(rule2Test(string)){ try bag.append(try rule2(string)); }
             if(rule3Test(string)){ try bag.append(try rule3(string)); }
             if(rule4Test(string)){ try bag.append(try rule4(string)); }
@@ -44,7 +48,13 @@ pub fn main() !void {
             if(finish(string)){
                 break; //Finished!
             }
+
         }
+
+        std.debug.print("bag contains: {any}\n", .{bag.items});
+
+
+        return;
     }
 
 
@@ -54,23 +64,25 @@ pub fn main() !void {
     try bw.flush(); // don't forget to flush!
 }
 
-pub fn addToBag(list: std.ArrayList([]Symbol), new: []Symbol) !void{
-    if(mem.containsAtLeast([]Symbol, list.items, 1, new)){
-        try list.append(new);
-    }
-}
+// pub fn addToBag(list: std.ArrayList([]Symbol), new: []Symbol) !void{
+//     if(mem.containsAtLeast([]Symbol, list.items, 1, new)){
+//         try list.append(new);
+//     }
+// }
 
 pub fn rule1Test(input: []Symbol ) bool{
     return (input[input.len-1] == Symbol.I);
 
 }
 pub fn rule1(input: []Symbol) ![]Symbol{
+    std.debug.print("Rule1\n", .{});
+
     var arr = try std.heap.page_allocator.alloc(Symbol, input.len + 1);
     arr = input[0..];
     arr[arr.len-1] = Symbol.U;
 
+    std.debug.print("Rule1 result: {any}\n", .{arr});
     return arr;
-    
 }
 
 pub fn rule2Test(input: []Symbol) bool {
@@ -79,6 +91,8 @@ pub fn rule2Test(input: []Symbol) bool {
 pub fn rule2(input: []Symbol) ![]Symbol{
     //M_ => M__
 
+    std.debug.print("Rule2\n", .{});
+
     // var arr = try std.heap.page_allocator.alloc(Symbol, input.len * 2);
     
     // arr = input[0..];
@@ -86,7 +100,10 @@ pub fn rule2(input: []Symbol) ![]Symbol{
 
     // mem.copy([]Symbol, arr)
 
-    return mem.concat(std.heap.page_allocator, Symbol, &[_][]Symbol{input[0..], input[1..]});
+    const arr = mem.concat(std.heap.page_allocator, Symbol, &[_][]Symbol{input[0..], input[1..]});
+    std.debug.print("Rule2 result: {any}\n", .{arr});
+
+    return arr;
 }
 
 pub fn rule3Test(input: []Symbol) bool {
@@ -104,6 +121,8 @@ pub fn rule3Test(input: []Symbol) bool {
 }
 pub fn rule3(input: []Symbol) ![]Symbol{
     // III => U
+    std.debug.print("Rule3\n", .{});
+
     const pattern: [3]Symbol = .{Symbol.I, Symbol.I, Symbol.I};
     var single = try std.heap.page_allocator.alloc(Symbol, 1);
     single[0] = Symbol.U;
@@ -137,6 +156,8 @@ pub fn rule4Test(input: []Symbol) bool {
 }
 pub fn rule4(input: []Symbol) ![]Symbol{
     // UU => -
+    std.debug.print("Rule4\n", .{});
+
     const pattern: [2]Symbol = .{Symbol.U, Symbol.U};
 
     for(input)|symbol, i|{