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#include <iostream>
#include <functional>
#include <string>
#include <set>
#include <botan/hex.h>
#include <botan/auto_rng.h>
#include "getopt.h"
using namespace Botan;
typedef std::function<int (int, char*[])> main_fn;
class AppRegistrations
{
public:
void add(const std::string& name, main_fn fn)
{
m_cmds[name] = fn;
}
bool has(const std::string& cmd) const
{
return m_cmds.count(cmd) > 0;
}
std::set<std::string> all_apps() const
{
std::set<std::string> apps;
for(auto i : m_cmds)
apps.insert(i.first);
return apps;
}
int run(const std::string& cmd, int argc, char* argv[]) const
{
auto i = m_cmds.find(cmd);
if(i != m_cmds.end())
return i->second(argc, argv);
return -1;
}
static AppRegistrations& instance()
{
static AppRegistrations s_apps;
return s_apps;
}
class AppRegistration
{
public:
AppRegistration(const std::string& name, main_fn fn)
{
AppRegistrations::instance().add(name, fn);
}
};
private:
AppRegistrations() {}
std::map<std::string, main_fn> m_cmds;
};
#define REGISTER_APP(nm) AppRegistrations::AppRegistration g_ ## nm ## _registration(#nm, nm)
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