diff --git a/aegisub/tools/common-respack.cpp b/aegisub/tools/common-respack.cpp
index 916fe769c..e7e213919 100644
--- a/aegisub/tools/common-respack.cpp
+++ b/aegisub/tools/common-respack.cpp
@@ -24,6 +24,8 @@
 #include <string>
 
 
+/// Clean a filename for use as an identity.
+/// @param str[in] String containing filename.
 inline void clean(std::string &str) {
 	// Remove path.
 	std::string::size_type pos = str.rfind('/');
@@ -65,12 +67,9 @@ int main(int argc, const char *argv[]) {
 	std::ofstream file_cpp(argv[2]);
 	std::ofstream file_h(argv[3]);
 
-
-
 	// If the manifest has a path use that as the base for finding files.
 	std::string manifest(argv[1]);
 	std::string path_base;
-
 	std::string::size_type pos = manifest.rfind('/');
 	if (pos != std::string::npos) {
 		path_base = manifest.substr(0, pos+1);
@@ -79,28 +78,29 @@ int main(int argc, const char *argv[]) {
 
 	file_cpp << "#include \"libresrc.h\"" << std::endl;
 
-
-	std::string file;
+	std::string file;	// File for array.
 	while (file_manifest) {
 		std::getline(file_manifest, file);
 		if (file.empty()) continue;
 
 		std::ifstream ifp((path_base + file).c_str());
-		std::istreambuf_iterator<char> ifp_i(ifp);
-		std::istreambuf_iterator<char> eof;
-
 
 		if (!ifp.is_open()) {
 			std::cout << "Error opening file: " << file << std::endl;
 			return 1;
 		}
 
+		// Identity used in C/Header files.
 		std::string ident(file);
 		clean(ident);
 
 		file_cpp << "const unsigned char " << ident << "[] = {";
 
+		/// Create byte-array.
+		std::istreambuf_iterator<char> ifp_i(ifp);
+		std::istreambuf_iterator<char> eof;
 		int length = 0;
+
 		while (ifp_i != eof) {
 			if (length > 0) file_cpp << ",";
 			file_cpp << (int)*ifp_i;
@@ -109,7 +109,10 @@ int main(int argc, const char *argv[]) {
 			length++;
 		}
 
+		// Finish
 		file_cpp << "};" << std::endl;
+
+		// Prototype.
 		file_h << "extern const unsigned char " << ident << "[" << length << "];" << std::endl;
 
 	}