cepgenerator/CommandLineOptions.hxx

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// This code was generated by CLI, a command line interface
// compiler for C++.
//
 
#ifndef COMMAND_LINE_OPTIONS_HXX
#define COMMAND_LINE_OPTIONS_HXX
 
#include <iosfwd>
#include <string>
#include <exception>
 
namespace cli
{
  class unknown_mode
  {
    public:
    enum value
    {
      skip,
      stop,
      fail
    };
 
    unknown_mode (value v);
 
    operator value () const 
    {
      return v_;
    }
 
    private:
    value v_;
  };
 
  // Exceptions.
  //
 
  class exception: public std::exception
  {
    public:
    virtual void
    print (std::ostream&) const = 0;
  };
 
  std::ostream&
  operator<< (std::ostream&, const exception&);
 
  class unknown_option: public exception
  {
    public:
    
    ~unknown_option () throw () override;
 
    unknown_option (std::string  option);
 
    const std::string&
    option () const;
 
    void
    print (std::ostream&) const override;
 
    const char*
    what () const throw () override;
 
    private:
    std::string option_;
  };
 
  class unknown_argument: public exception
  {
    public:
    
    ~unknown_argument () throw () override;
 
    unknown_argument (std::string  argument);
 
    const std::string&
    argument () const;
 
    void
    print (std::ostream&) const override;
 
    const char*
    what () const throw () override;
 
    private:
    std::string argument_;
  };
 
  class missing_value: public exception
  {
    public:
    
    ~missing_value () throw () override;
 
    missing_value (std::string  option);
 
    const std::string&
    option () const;
 
    void
    print (std::ostream&) const override;
 
    const char*
    what () const throw () override;
 
    private:
    std::string option_;
  };
 
  class invalid_value: public exception
  {
    public:
    
    ~invalid_value () throw () override;
 
    invalid_value (std::string  option,
                   std::string  value);
 
    const std::string&
    option () const;
 
    const std::string&
    value () const;
 
    void
    print (std::ostream&) const override;
 
    const char*
    what () const throw () override;
 
    private:
    std::string option_;
    std::string value_;
  };
 
  class eos_reached: public exception
  {
    public:
    void
    print (std::ostream&) const override;
 
    const char*
    what () const throw () override;
  };
 
  class scanner
  {
    public:
    virtual
    ~scanner ();
 
    virtual bool
    more () = 0;
 
    virtual const char*
    peek () = 0;
 
    virtual const char*
    next () = 0;
 
    virtual void
    skip () = 0;
  };
 
  class argv_scanner: public scanner
  {
    public:
    argv_scanner (int& argc, char** argv, bool erase = false);
    argv_scanner (int start, int& argc, char** argv, bool erase = false);
 
    int
    end () const;
 
    bool
    more () override;
 
    const char*
    peek () override;
 
    const char*
    next () override;
 
    void
    skip () override;
 
    private:
    int i_;
    int& argc_;
    char** argv_;
    bool erase_;
  };
}
 
#include <string>
 
class options
{
  public:
 
  options (int& argc,
           char** argv,
           bool erase = false,
           ::cli::unknown_mode option = ::cli::unknown_mode::fail,
           ::cli::unknown_mode argument = ::cli::unknown_mode::stop);
 
  options (int start,
           int& argc,
           char** argv,
           bool erase = false,
           ::cli::unknown_mode option = ::cli::unknown_mode::fail,
           ::cli::unknown_mode argument = ::cli::unknown_mode::stop);
 
  options (int& argc,
           char** argv,
           int& end,
           bool erase = false,
           ::cli::unknown_mode option = ::cli::unknown_mode::fail,
           ::cli::unknown_mode argument = ::cli::unknown_mode::stop);
 
  options (int start,
           int& argc,
           char** argv,
           int& end,
           bool erase = false,
           ::cli::unknown_mode option = ::cli::unknown_mode::fail,
           ::cli::unknown_mode argument = ::cli::unknown_mode::stop);
 
  options (::cli::scanner&,
           ::cli::unknown_mode option = ::cli::unknown_mode::fail,
           ::cli::unknown_mode argument = ::cli::unknown_mode::stop);
 
  // Option accessors.
  //
 
  const bool&
  help () const;
 
  const bool&
  version () const;
 
  const std::string&
  file () const;
 
  const std::string&
  directory () const;
 
  // Print usage information.
  //
  static void
  print_usage (::std::ostream&);
 
  private:
  void
  _parse (::cli::scanner&,
          ::cli::unknown_mode option,
          ::cli::unknown_mode argument);
 
  public:
  bool help_;
  bool version_;
  std::string file_;
  std::string directory_;
};
 
#include "CommandLineOptions.ixx"
 
#endif // COMMAND_LINE_OPTIONS_HXX