text: #ifndef NEWSBOAT_FILEURLREADER_H_
  #define NEWSBOAT_FILEURLREADER_H_
  
  #include <string>
  
  #include "urlreader.h"
  
  namespace newsboat {
  
  class FileUrlReader : public UrlReader {
  public:
  	explicit FileUrlReader(const std::string& file = "");
  
  	/// \brief Load URLs from the urls file.
  	///
  	/// \return A non-value on success, an error message otherwise.
  	nonstd::optional<std::string> reload() override;
  
  	std::string get_source() override;
  
  	/// \brief Write URLs back to the urls file.
  	///
  	/// \return A non-value on success, an error message otherwise.
  	nonstd::optional<std::string> write_config();
  
  private:
  	const std::string filename;
  };
  
  }
  
  #endif /* NEWSBOAT_FILEURLREADER_H_ */
  