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#include <iostream>
#include <string>
#include <map>
#include <sstream>
//HEAD
class Handler: private std::map<std::string,
void (Handler::*)(std::string const &cmd)>
//=
{
//STATIC
static value_type s_cmds[];
static value_type *const s_cmds_end;
//=
public:
Handler();
void process(std::string const &line);
private:
void list(std::string const &line);
};
//CONS
inline Handler::Handler()
:
std::map<std::string,
void (Handler::*)(std::string const &cmd)>
(s_cmds, s_cmds_end)
{}
//=
using namespace std;
Handler::value_type Handler::s_cmds[] =
{
value_type("list", &Handler::list),
};
Handler::value_type *const Handler::s_cmds_end =
s_cmds +
sizeof(s_cmds) / sizeof(Handler::value_type);
//PROCESS
void Handler::process(std::string const &line)
{
istringstream istr(line);
string cmd;
istr >> cmd;
for (iterator it = begin(); it != end(); it++)
{
if (it->first.find(cmd) == 0)
{
(this->*it->second)(line);
return;
}
}
cout << "Unknown command: " << line << '\n';
}
//=
void Handler::list(std::string const &line)
{
cout << "Handler::list() called using `" << line << "'\n";
}
//MAIN
int main()
{
string line;
Handler cmd;
while (getline(cin, line))
cmd.process(line);
}
//=
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