From 263986407cbbc2880f33a678ea1745a02e0ca7bc Mon Sep 17 00:00:00 2001
From: Dexrn ZacAttack <60078656+DexrnZacAttack@users.noreply.github.com>
Date: Mon, 13 Oct 2025 01:25:43 -0700
Subject: [PATCH 1/2] APE pattern

---
 patterns/ape.hexpat | 52 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 patterns/ape.hexpat

diff --git a/patterns/ape.hexpat b/patterns/ape.hexpat
new file mode 100644
index 00000000..b36af567
--- /dev/null
+++ b/patterns/ape.hexpat
@@ -0,0 +1,52 @@
+#pragma author DexrnZacAttack
+#pragma description APE audio metadata
+#pragma magic [ 41 50 45 54 41 47 45 58 ] @ 0x00
+
+import std.core;
+
+namespace APE {
+    enum ItemType : u8 {
+        UTF8 = 0,
+        BINARY = 1,
+        EXTERNAL = 2,
+        RESERVED = 3
+    };
+
+    bitfield ItemFlags {
+        RW : 1;
+        Type : 2;
+        Reserved : 25;
+        IsHeader : 1;
+        HasNoFooter : 1;
+        HasHeader : 1;
+    };
+ 
+    struct TagItem {
+         u32 len;
+         ItemFlags flags;
+         char key[];
+         
+         if (flags.Type == ItemType::UTF8)
+            char value[len];
+         else
+            u8 value[len];
+    };
+
+    struct Block {
+        char signature[8];
+        u32 version;
+        u32 tagSize;
+        u32 itemCount;
+        ItemFlags globalFlags;
+        u64 reserved;
+    };
+    
+    struct File {
+        Block header;
+        TagItem items[header.itemCount];
+        
+        Block footer;
+    };
+}
+
+APE::File ape @ 0x00;

From 334ec48c1da22b8bf73ca6a337b2f2d25c0b16a5 Mon Sep 17 00:00:00 2001
From: Dexrn ZacAttack <60078656+DexrnZacAttack@users.noreply.github.com>
Date: Mon, 13 Oct 2025 01:42:55 -0700
Subject: [PATCH 2/2] feat: signature verification, allow using as lib

---
 patterns/ape.hexpat | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/patterns/ape.hexpat b/patterns/ape.hexpat
index b36af567..976b6514 100644
--- a/patterns/ape.hexpat
+++ b/patterns/ape.hexpat
@@ -1,8 +1,10 @@
 #pragma author DexrnZacAttack
 #pragma description APE audio metadata
 #pragma magic [ 41 50 45 54 41 47 45 58 ] @ 0x00
+#pragma version 1.0.1
 
 import std.core;
+import std.sys;
 
 namespace APE {
     enum ItemType : u8 {
@@ -34,6 +36,9 @@ namespace APE {
 
     struct Block {
         char signature[8];
+        if (signature != "APETAGEX")
+            std::error("Signature does not match \"APETAGEX\"");
+        
         u32 version;
         u32 tagSize;
         u32 itemCount;
@@ -49,4 +54,6 @@ namespace APE {
     };
 }
 
-APE::File ape @ 0x00;
+#ifndef APE_USE_LIB
+    APE::File ape @ 0x00;
+#endif