Add CSNAP pattern

README.md

@@ -264,7 +264,7 @@ Everything will immediately show up in ImHex's Content Store and gets bundled wi
 | CBM BASIC | | [`commodore_basic.hexpat`](patterns/commodore_basic.hexpat) | Commodore BASIC |
 | Atari XEX | | [`xex.hexpat`](patterns/xex.hexpat) | Atari 8-bit binary format |
 | Terminfo | `application/x-terminfo` and `application/x-terminfo2` | [`patterns/terminfo.hexpat`](patterns/terminfo.hexpat) | Compiled *(legacy and extended)* term info entry |
-
+| CSNAP | [`csnap.hexpat`](patterns/csnap.hexpat) | ClipboardEdit Clipboard Snapshot format |
 
 
 ### Scripts

patterns/csnap.hexpat

@@ -0,0 +1,74 @@
+#pragma endian little
+#pragma magic 0x0F1B0A6D @ 0x00
+#pragma author FireBlade
+#pragma description ClipboardEdit Clipboard Snapshot format
+
+
+import std.io;
+import std.core;
+import std.time;
+import type.time;
+import std.string;
+
+enum ID : u32 {
+    CF_TEXT = 1,
+    CF_BITMAP,
+    CF_METAFILEPICT,
+    CF_SYLK,
+    CF_DIF,
+    CF_TIFF,
+    CF_OEMTEXT,
+    CF_DIB,
+    CF_PALETTE,
+    CF_PENDATA,
+    CF_RIFF,
+    CF_WAVE,
+    CF_UNICODETEXT,
+    CF_ENHMETAFILE,
+    CF_HDROP,
+    CF_LOCALE,
+    CF_DIBV5,
+    CF_OWNERDISPLAY = 0x80,
+    CF_DSPTEXT,
+    CF_DSPBITMAP,
+    CF_DSPMETAFILEPICT,
+    CF_DSPENHMETAFILE = 0x8E,
+};
+
+fn id_to_format(auto v) {
+    ID id = v;
+    str result = std::format("{}",id);
+    u32 resultLength = std::string::length(result)-4;
+    result = std::string::substr(result,4,resultLength);
+    if (result == "???")
+        return std::format("{:#X} {}",v,v);
+    return result;
+};
+
+struct ClipboardEntry
+{
+    u32 format [[format("id_to_format")]];
+    u32 length;
+    u8 data[length];
+};
+
+fn to_utc(auto v) {
+    type::time64_t unix_time = std::time::filetime_to_unix(v);
+    return type::impl::format_time_t(unix_time);
+};
+
+struct ClipboardSnapshot
+{
+    u32 magic;
+    u32 version;
+    u32 count;
+
+    ClipboardEntry entries[count];
+
+    type::FILETIME filetimeTakenUtc [[format("to_utc")]];
+};
+
+ClipboardSnapshot snapshot @ 0x00;
+
+if (snapshot.magic != 0x0F1B0A6D)
+    std::error("Invalid Clipboard Snapshot file");