@@ -135,7 +135,7 @@ ("a" ' ' ' ((("a"))) ==)
     ((0x1 0x2 0x3) (dup dup * *) map (0x1 0x8 0x1b) ==)
     ;64
 
-    ((0x1 0x2 0x3) (0x2 % 0x0 ==) filter (0x2) ==)
+    ;((0x1 0x2 0x3) (0x2 % 0x0 ==) filter (0x2) ==)
     (0x2 dup stack (0x2 0x2) ==)
     (clear stack () ==)
     (0x1 0x2 swap pop stack (0x2) ==)

@@ -105,7 +105,6 @@ 
     // Quotation
     hex_set_doc(docs, "each", "q1 q2", "*", "Executes 'q2' for each item of 'q1'.");
     hex_set_doc(docs, "map", "q1 q2", "q3", "Applies 'q2' to 'q1' items and returns results.");
-    hex_set_doc(docs, "filter", "q1 q2", "q3", "Filters 'q2' by applying 'q1'.");
 
     // I/O
     hex_set_doc(docs, "puts", "a", "", "Prints 'a' and a new line to standard output.");

@@ -25,7 +25,7 @@ #define HEX_STDIN_BUFFER_SIZE 16384
 #define HEX_REGISTRY_SIZE 1024
 #define HEX_STACK_SIZE 256
 #define HEX_STACK_TRACE_SIZE 16
-#define HEX_NATIVE_SYMBOLS 65
+#define HEX_NATIVE_SYMBOLS 64
 #define HEX_MAX_SYMBOL_LENGTH 256
 #define HEX_MAX_USER_SYMBOLS (HEX_REGISTRY_SIZE - HEX_NATIVE_SYMBOLS)
 
@@ -160,70 +160,69 @@ HEX_OP_PUSHQT = 0x03,
 
     // Native Symbols
     HEX_OP_STORE = 0x10,
-    HEX_OP_DEFINE = 0x50,
-    HEX_OP_FREE = 0x11,
+    HEX_OP_DEFINE = 0x11,
+    HEX_OP_FREE = 0x12,
 
-    HEX_OP_IF = 0x12,
-    HEX_OP_WHEN = 0x13,
-    HEX_OP_WHILE = 0x14,
-    HEX_OP_ERROR = 0x15,
-    HEX_OP_TRY = 0x16,
+    HEX_OP_IF = 0x13,
+    HEX_OP_WHEN = 0x14,
+    HEX_OP_WHILE = 0x15,
+    HEX_OP_ERROR = 0x16,
+    HEX_OP_TRY = 0x17,
 
-    HEX_OP_DUP = 0x17,
-    HEX_OP_STACK = 0x18,
-    HEX_OP_CLEAR = 0x19,
-    HEX_OP_POP = 0x1A,
-    HEX_OP_SWAP = 0x1B,
+    HEX_OP_DUP = 0x18,
+    HEX_OP_STACK = 0x19,
+    HEX_OP_CLEAR = 0x1a,
+    HEX_OP_POP = 0x1b,
+    HEX_OP_SWAP = 0x1c,
 
-    HEX_OP_I = 0x1C,
-    HEX_OP_EVAL = 0x1D,
-    HEX_OP_QUOTE = 0x1E,
+    HEX_OP_I = 0x1d,
+    HEX_OP_EVAL = 0x1e,
+    HEX_OP_QUOTE = 0x1f,
 
-    HEX_OP_ADD = 0x1F,
-    HEX_OP_SUB = 0x20,
-    HEX_OP_MUL = 0x21,
-    HEX_OP_DIV = 0x22,
-    HEX_OP_MOD = 0x23,
+    HEX_OP_ADD = 0x20,
+    HEX_OP_SUB = 0x21,
+    HEX_OP_MUL = 0x22,
+    HEX_OP_DIV = 0x23,
+    HEX_OP_MOD = 0x24,
 
-    HEX_OP_BITAND = 0x24,
-    HEX_OP_BITOR = 0x25,
-    HEX_OP_BITXOR = 0x26,
-    HEX_OP_BITNOT = 0x27,
-    HEX_OP_SHL = 0x28,
-    HEX_OP_SHR = 0x29,
+    HEX_OP_BITAND = 0x25,
+    HEX_OP_BITOR = 0x26,
+    HEX_OP_BITXOR = 0x27,
+    HEX_OP_BITNOT = 0x28,
+    HEX_OP_SHL = 0x29,
+    HEX_OP_SHR = 0x2a,
 
-    HEX_OP_EQUAL = 0x2A,
-    HEX_OP_NOTEQUAL = 0x2B,
-    HEX_OP_GREATER = 0x2C,
-    HEX_OP_LESS = 0x2D,
-    HEX_OP_GREATEREQUAL = 0x2E,
-    HEX_OP_LESSEQUAL = 0x2F,
+    HEX_OP_EQUAL = 0x2b,
+    HEX_OP_NOTEQUAL = 0x2c,
+    HEX_OP_GREATER = 0x2d,
+    HEX_OP_LESS = 0x2e,
+    HEX_OP_GREATEREQUAL = 0x2f,
+    HEX_OP_LESSEQUAL = 0x30,
 
-    HEX_OP_AND = 0x30,
-    HEX_OP_OR = 0x31,
-    HEX_OP_NOT = 0x32,
-    HEX_OP_XOR = 0x33,
+    HEX_OP_AND = 0x31,
+    HEX_OP_OR = 0x32,
+    HEX_OP_NOT = 0x33,
+    HEX_OP_XOR = 0x34,
 
-    HEX_OP_INT = 0x34,
-    HEX_OP_STR = 0x35,
-    HEX_OP_DEC = 0x36,
-    HEX_OP_HEX = 0x37,
-    HEX_OP_ORD = 0x38,
-    HEX_OP_CHR = 0x39,
-    HEX_OP_TYPE = 0x3A,
+    HEX_OP_INT = 0x35,
+    HEX_OP_STR = 0x36,
+    HEX_OP_DEC = 0x37,
+    HEX_OP_HEX = 0x38,
+    HEX_OP_ORD = 0x39,
+    HEX_OP_CHR = 0x3a,
+    HEX_OP_TYPE = 0x3b,
 
-    HEX_OP_CAT = 0x3B,
-    HEX_OP_LEN = 0x3C,
-    HEX_OP_GET = 0x3D,
-    HEX_OP_INDEX = 0x3E,
-    HEX_OP_JOIN = 0x3F,
+    HEX_OP_CAT = 0x3c,
+    HEX_OP_LEN = 0x3d,
+    HEX_OP_GET = 0x3e,
+    HEX_OP_INDEX = 0x3f,
+    HEX_OP_JOIN = 0x40,
 
-    HEX_OP_SPLIT = 0x40,
-    HEX_OP_REPLACE = 0x41,
+    HEX_OP_SPLIT = 0x41,
+    HEX_OP_REPLACE = 0x42,
 
-    HEX_OP_EACH = 0x42,
-    HEX_OP_MAP = 0x43,
-    HEX_OP_FILTER = 0x44,
+    HEX_OP_EACH = 0x43,
+    HEX_OP_MAP = 0x44,
 
     HEX_OP_PUTS = 0x45,
     HEX_OP_WARN = 0x46,

@@ -217,10 +217,6 @@ else if (strcmp(symbol, "map") == 0)
     {
         return HEX_OP_MAP;
     }
-    else if (strcmp(symbol, "filter") == 0)
-    {
-        return HEX_OP_FILTER;
-    }
     else if (strcmp(symbol, "puts") == 0)
     {
         return HEX_OP_PUTS;
@@ -378,8 +374,6 @@ case HEX_OP_EACH:
         return "each";
     case HEX_OP_MAP:
         return "map";
-    case HEX_OP_FILTER:
-        return "filter";
     case HEX_OP_PUTS:
         return "puts";
     case HEX_OP_WARN:

@@ -2667,7 +2667,6 @@ hex_set_native_symbol(ctx, "try", hex_symbol_try);
     hex_set_native_symbol(ctx, "'", hex_symbol_q);
     hex_set_native_symbol(ctx, "each", hex_symbol_each);
     hex_set_native_symbol(ctx, "map", hex_symbol_map);
-    hex_set_native_symbol(ctx, "filter", hex_symbol_filter);
     hex_set_native_symbol(ctx, "swap", hex_symbol_swap);
     hex_set_native_symbol(ctx, "dup", hex_symbol_dup);
     hex_set_native_symbol(ctx, "stack", hex_symbol_stack);