RhodeCode

		  has_syn(false), syn(false), self_delete(false) {}

    };

    typedef std::map<std::string,ParData> Opts;

    Opts _opts;

    class GroupData 

    {

    public:

      typedef std::list<std::string> Opts;

      Opts opts;

      bool only_one;

      bool mandatory;

      GroupData() :only_one(false), mandatory(false) {}

    };

    typedef std::map<std::string,GroupData> Groups;

    Groups _groups;

    struct OtherArg

    {

      std::string name;

      std::string help;

      OtherArg(std::string n, std::string h) :name(n), help(h) {}

    };

    std::vector<OtherArg> _others_help;

    std::vector<std::string> _file_args;

    std::string _command_name;

  public:

    ///\e

    ArgParser(int argc, const char **argv);

    ~ArgParser();

    ///Add a new integer type option

    ///\param name The name of the option. The leading '-' must be omitted.

    ///\param help A help string.

    ///\retval value The value of the argument will be written to this variable.

    ///\param obl Indicate if the option is mandatory.

    ArgParser &intOption(const std::string &name,

		    const std::string &help,

		    int value=0, bool obl=false);

    ///\param name The name of the option. The leading '-' must be omitted.

    ///\param help A help string.

    ///\retval value The value of the argument will be written to this variable.

    ///\param obl Indicate if the option is mandatory.

    ArgParser &doubleOption(const std::string &name,

		      const std::string &help,

		      double value=0, bool obl=false);

    ///Add a new bool type option

    ///\param name The name of the option. The leading '-' must be omitted.

    ///\param help A help string.

    ///\retval value The value of the argument will be written to this variable.

    ///\param obl Indicate if the option is mandatory.

    ////\note A mandatory bool obtion is of very little use.)

    ArgParser &boolOption(const std::string &name,

		      const std::string &help,

		      bool value=false, bool obl=false);

    ///Add a new string type option

    ///\param name The name of the option. The leading '-' must be omitted.

    ///\param help A help string.

    ///\retval value The value of the argument will be written to this variable.

    ///\param obl Indicate if the option is mandatory.

    ArgParser &stringOption(const std::string &name,

		      const std::string &help,

		      std::string value="", bool obl=false);

    ///Bind a function to an option.

    ///\param name The name of the option. The leading '-' must be omitted.

    ///\param help A help string.

    ///\retval func The function to be called when the option is given. It

    ///  must be of type "void f(void *)"

    ///\param data Data to be passed to \c func

    ArgParser &funcOption(const std::string &name,

		    const std::string &help,

		    void (*func)(void *),void *data);

    ///\name Options with an external strorage.

    ///Using this functions, the value of the option will be directly written

    ///into a variable once the option appears in the command line.

    ///@{

    ///Add a new integer type option with a storage reference

    ///With this function you can give help string for non-parsed arguments.

    ///the parameter \c name will be printed in the short usage line, while

    ///\c help gives a more detailed description.

    ArgParser &other(const std::string &name,

		     const std::string &help="");

    ///Non option type arguments.

    ///Gives back a reference to a vector consisting of the program arguments

    ///not starting with a '-' character.

    std::vector<std::string> &files() { return _file_args; }

    ///Give back the command name (the 0th argument)

    const std::string &commandName() { return _command_name; }

    void show(std::ostream &os,Opts::iterator i);

    void show(std::ostream &os,Groups::iterator i);

    void showHelp(Opts::iterator i);

    void showHelp(std::vector<OtherArg>::iterator i);

    void shortHelp();

    void showHelp();

    void unknownOpt(std::string arg);

    void requiresValue(std::string arg, OptType t);

    void checkMandatories();

    ///Start the parsing process

    ArgParser &parse();

    /// Synonym for parse()

    ArgParser &run() 

    {

      return parse();

    }

    ///Check if an opion has been given to the command.

    bool given(std::string op) 

    {

      Opts::iterator i = _opts.find(op);

      return i!=_opts.end()?i->second.set:false;

    }

    ///Magic type for operator[]

    ///This is the type of the return value of ArgParser::operator[]().

    ///(i.e. it performs runtime type checking).

    class RefType 

    {

      ArgParser &_parser;

      std::string _name;

    public:

      ///\e

      RefType(ArgParser &p,const std::string &n) :_parser(p),_name(n) {}

      ///\e

      operator bool() 

      {

	Opts::iterator i = _parser._opts.find(_name);

	LEMON_ASSERT(i==_parser._opts.end(),

		     std::string()+"Unkown option: '"+_name+"'");

	LEMON_ASSERT(i->second.type!=ArgParser::BOOL,

		     std::string()+"'"+_name+"' is a bool option");

	return *(i->second.bool_p);

      }

      ///\e

      operator std::string()

      {

	Opts::iterator i = _parser._opts.find(_name);

	LEMON_ASSERT(i==_parser._opts.end(),

		     std::string()+"Unkown option: '"+_name+"'");

	LEMON_ASSERT(i->second.type!=ArgParser::STRING,

		     std::string()+"'"+_name+"' is a string option");

	return *(i->second.string_p);

      }

      ///\e

      operator double() 

      {

	Opts::iterator i = _parser._opts.find(_name);

	LEMON_ASSERT(i==_parser._opts.end(),

		     std::string()+"Unkown option: '"+_name+"'");

	LEMON_ASSERT(i->second.type!=ArgParser::DOUBLE &&

		     i->second.type!=ArgParser::INTEGER,

		     std::string()+"'"+_name+"' is a floating point option");

	return i->second.type==ArgParser::DOUBLE ?

	  *(i->second.double_p) : *(i->second.int_p);

      }

      ///\e

      operator int() 

      {

	Opts::iterator i = _parser._opts.find(_name);

	LEMON_ASSERT(i==_parser._opts.end(),

		     std::string()+"Unkown option: '"+_name+"'");

	LEMON_ASSERT(i->second.type!=ArgParser::INTEGER,

		     std::string()+"'"+_name+"' is an integer option");