2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
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29 #ifndef __COMMAND_HH__
30 #define __COMMAND_HH__
42 const std::string name;
44 // The minimum number of arguments the command expects.
46 // The maximum number of arguments the command can handle.
49 using FuncType = void (*)(const DispatchTable &dt, Args &args);
50 // A function which processes command line arguments and passes them to
51 // the underlying function through the dispatch table.
54 // Help text for this command.
55 const std::string usageStr;
57 static std::map<std::string, Command &> &map();
61 Command(const std::string &_name, int _min, int _max, FuncType _func,
62 const std::string &_usage) :
63 name(_name), minArgs(_min), maxArgs(_max), func(_func),
66 map().emplace(std::piecewise_construct,
67 std::forward_as_tuple(std::string(_name)),
68 std::forward_as_tuple(*this));
71 ~Command() { map().erase(name); }
73 static bool run(const DispatchTable &dt, Args &args);
79 for (auto &p: Command::map())
80 summary += " " + p.first + " " + p.second.usageStr + "\n";
85 #endif // __COMMAND_HH__