src/console/Arguments.h

   1 /*******************************************************************************
   2  * Reverse Polish Notation calculator.                                         *
   3  * Copyright (c) 2007-2008, Samuel Fredrickson <kinghajj@gmail.com>            *
   4  * All rights reserved.                                                        *
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   6  * Redistribution and use in source and binary forms, with or without          *
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   9  *       notice, this list of conditions and the following disclaimer.         *
  10  *     * Redistributions in binary form must reproduce the above copyright     *
  11  *       notice, this list of conditions and the following disclaimer in the   *
  12  *       documentation and/or other materials provided with the distribution.  *
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  14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS *
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  26
  27 /*******************************************************************************
  28  * Arguments.h - argument handling for the console port.                       *
  29  ******************************************************************************/
  30
  31 #ifndef RPN_CONSOLE_ARGUMENT
  32 #define RPN_CONSOLE_ARGUMENT
  33
  34 #include <map>
  35 #include <string>
  36 #include <vector>
  37 #include "../typedefs.h"
  38
  39 namespace RPN
  40 {
  41     class Argument
  42     {
  43         unsigned nargs;
  44         bool     continueProgram;
  45         void     (*f)(std::vector<std::string>&, Calculator&);
  46
  47     public:
  48         Argument()
  49             : nargs(0), continueProgram(true), f(NULL)
  50         {
  51         }
  52
  53         Argument(unsigned nargs, bool continueProgram,
  54                  void (*f)(std::vector<std::string>&, Calculator&))
  55             : nargs(nargs), continueProgram(continueProgram), f(f)
  56         {
  57         }
  58
  59         bool ContinueProgram() const
  60         {
  61             return continueProgram;
  62         }
  63
  64         unsigned NumArgs() const
  65         {
  66             return nargs;
  67         }
  68
  69         void Perform(std::vector<std::string>& args, Calculator& calc) const
  70         {
  71             if(f) f(args, calc);
  72         }
  73     };
  74
  75     typedef std::map<std::string, Argument> Arguments;
  76
  77     std::vector<std::string> vectorize(char **argv, int argc);
  78     bool processArguments(const std::vector<std::string>& args,
  79                           const Arguments& arguments,
  80                           Calculator& calculator);
  81     void setupArguments(Arguments& arguments);
  82 }
  83
  84 #endif