summaryrefslogtreecommitdiff
path: root/ACE/contrib/utility/Example/CommandLine/Foo/foo.cpp
blob: 550d1f6f170546098422d233f01aefb7c0560fd9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
#include <typeinfo>
#include <string>
#include <iostream>

/* FUZZ: disable check_for_improper_main_declaration */

namespace CommandLine
{
  struct Parser
  {
  };
}

using std::string;
using std::cerr;
using std::endl;

using namespace CommandLine;

class Command
{
public:
  enum Value
  {
    HELP,
    VERSION,
    DEFAULT
  };

  Command (Value v = Command::DEFAULT)
      : v_ (v)
  {
  }

  operator Value () const
  {
    return v_;
  }

private:
  Value v_;
};


int
version ();

int
help (int argc, char* argv[]);

int
main (int argc, char* argv[])
{

  // Step 1: determine command
  //
  // * there is usually one command
  // * command can be optional
  // * command usually takes up one argument
  //

  CommandParser<Command> cp;

  switch (cp.parse (argc, argv))
  {
  case Command::VERSION:
    {
      return version ();
    }
  case Command::HELP:
    {
      return help (argc, argv);
    }
  }

  // Step 2: parse options
  //
  // * options are usually optional
  // * options are usually position-independant
  // * options usually do not repeat
  // * options can take up more than one argument
  //

  OptionMap om;

  CompositeParser op;

  op.add (OptionParser<string> ("string", "--string", "-s"));
  op.add (OptionParser<unsigned long> ("number", "--number", "-n"));

  while (argc != 1 && !op.empty ())
  {
    om.insert (op.parse (argc, argv));
  }

  // Step 3: parse operands
  //
  // * operands usually position-dependant
  // * operand usually take up one argument
  //

  OperandParser<string> odp;

  string str = odp.parse (argc, argv);

  unsigned long num = 0;

  if (argc != 1)
  {
    OperandParser<unsigned long> op;
    num = op.parse (argc, argv);
  }

  string s = om.count ("string") ? om["string"] : "default";
  unsigned long l = om["number"];

  // om.at ()
  // om.get ()
  // om.resolve ()
  // om.option ()
  // om.value ()

  cerr << "opreation settings are:" << endl << endl
       << "option string  : " << om.get<string> ("string", "default") << endl
       << "option number  : " << om.get ("number", 10UL) << endl
       << "operand string : " << str << endl
       << "operand number : " << num << endl;
}


//
//
//
int
version ()
{
  cerr << "foo 1.0" << endl;
  return 0;
}


//
//
//
int
help (int argc, char* argv[])
{
  Command subject;

  if (argc != 1)
  {
    OperandParser<Command> op;
    subject = op.parse (argc, argv);
  }

  switch (subject)
  {
  case Command::HELP:
    {
      cerr << "foo help [<command>]" << endl << endl
           << "\t If <command> is specified then print extended help" << endl
           << "\t information for specified command. Otherwise print" << endl
           << "\t general usage information." << endl;
      break;
    }
  case Command::VERSION:
    {
      cerr << "foo version" << endl << endl
           << "\t Print version information." << endl;
      break;
    }
  default:
    {
      cerr << "foo version" << endl
           << "foo help [<command>]" << endl
           << "foo [-s|--string <str>] [-n|--number <num>] <str> [<num>]"
           << endl;
      break;
    }
  }

  return 0;
}
//$Id$