std::set<std::string> getEncodingSet(std::string const & doc_encoding) const;
///
void getFontEncodings(std::vector<std::string> & encodings,
bool const onlylangs = false) const;
///
std::set<std::string> getEncodingSet(std::string const & doc_encoding) const;
///
void getFontEncodings(std::vector<std::string> & encodings,
bool const onlylangs = false) const;
///