+ bool hasOnlyPolyglossiaLanguages() const;
+ /// check if a language is supported only by polyglossia
+ bool hasPolyglossiaExclusiveLanguages() const;
+ /// A vector of all used languages supported only by polyglossia
+ std::vector<std::string> getPolyglossiaExclusiveLanguages() const;
+ /// A vector of all used languages supported only by babel
+ std::vector<std::string> getBabelExclusiveLanguages() const;
+ ///
+ std::string getBabelLanguages() const;