sys: Cleanup libmagic mess

plugins/libimhex/include/hex/helpers/literals.hpp

@@ -0,0 +1,23 @@
+#pragma once
+
+namespace hex::literals {
+
+    /* Byte literals */
+
+    unsigned long long operator ""_Bytes(unsigned long long bytes) {
+        return bytes;
+    }
+
+    unsigned long long operator ""_kiB(unsigned long long kiB) {
+        return operator ""_Bytes(kiB * 1024);
+    }
+
+    unsigned long long operator ""_MiB(unsigned long long MiB) {
+        return operator ""_kiB(MiB * 1024);
+    }
+
+    unsigned long long operator ""_GiB(unsigned long long GiB) {
+        return operator ""_MiB(GiB * 1024);
+    }
+
+}

plugins/libimhex/include/hex/helpers/magic.hpp

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <hex.hpp>
+
+#include <hex/helpers/literals.hpp>
+
+#include <string>
+#include <vector>
+
+namespace hex::prv { class Provider; }
+
+namespace hex::magic {
+
+    using namespace hex::literals;
+
+    bool compile();
+    std::string getDescription(const std::vector<u8> &data);
+    std::string getDescription(prv::Provider *provider, size_t size = 5_MiB);
+    std::string getMIMEType(const std::vector<u8> &data);
+    std::string getMIMEType(prv::Provider *provider, size_t size = 5_MiB);
+
+}