namespace dcp {
-class ARGBImage;
class CertificateChain;
class GammaLUT;
class OpenJPEGImage;
extern std::string make_uuid ();
extern std::string make_digest (boost::filesystem::path filename, boost::function<void (float)>);
-extern std::string content_kind_to_string (ContentKind kind);
-extern ContentKind content_kind_from_string (std::string kind);
+extern std::string make_digest (Data data);
extern bool empty_or_white_space (std::string s);
extern bool ids_equal (std::string a, std::string b);
extern std::string remove_urn_uuid (std::string raw);
extern std::string private_key_fingerprint (std::string key);
extern xmlpp::Node* find_child (xmlpp::Node const * node, std::string name);
extern std::string openjpeg_version();
+extern std::string spaces (int n);
+extern void indent (xmlpp::Element* element, int initial);
+extern std::string unique_string (std::list<std::string> existing, std::string base);
}