1 files changed, 47 insertions, 0 deletions
diff --git a/src/util/include/debug.hpp b/src/util/include/debug.hpp
new file mode 100644
index 00000000..620b0974
--- /dev/null
+++ b/src/util/include/debug.hpp
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2023 jacqueline <me@jacqueline.id.au>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#pragma once
+
+#include <iomanip>
+#include <ostream>
+
+#include <string>
+#include "span.hpp"
+
+namespace util {
+
+inline std::string format_hex_string(cpp::span<const std::byte> data) {
+  std::ostringstream oss;
+  std::ostringstream ascii_values;
+  int count = 0;
+  for (auto byte : data) {
+    if (count % 16 == 0) {
+      if (ascii_values.str().size() > 0) {
+        oss << "\t|" << ascii_values.str() << "|";
+        // Reset ascii values
+        ascii_values.str("");
+      }
+      oss << std::endl;
+      oss << "0x" << std::uppercase << std::setfill('0') << std::setw(2)
+          << std::hex << count << '\t';
+    } else if (count % 8 == 0) {
+      oss << " ";
+    }
+    int byte_val = (int)byte;
+    oss << "[0x" << std::uppercase << std::setfill('0') << std::setw(2)
+        << std::hex << byte_val << ']';
+    if (byte_val >= 32 && byte_val < 127) {
+      ascii_values << (char)byte;
+    } else {
+      ascii_values << ".";
+    }
+    count++;
+  }
+  return oss.str();
+}
+
+}  // namespace util