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// -*- mode: c++; c-basic-offset: 2; -*-
#ifndef ARGS_HH
#define ARGS_HH
#include <iostream>
#include <string>
#include <vector>
class Args {
public:
virtual ~Args() {}
static Args* create();
virtual void add(char short_opt, std::string const& long_opt,
std::string const& argument, std::string const& help) = 0;
void add(char short_opt, std::string const& long_opt,
std::string const& help) {
add(short_opt, long_opt, "", help);
}
void add(std::string const& long_opt, std::string const& help) {
add('\0', long_opt, "", help);
}
void add(std::string const& long_opt, std::string const& argument,
std::string const& help) {
add('\0', long_opt, argument, help);
}
bool run(int argc, char** argv) {
return run(argc, argv, std::cerr);
}
virtual bool run(int argc, char** argv, std::ostream& out) = 0;
bool run(std::string const& prg, int argc, char** argv) {
return run(prg, argc, argv, std::cerr);
}
virtual bool run(
std::string const& prg, int argc, char** argv, std::ostream& out) = 0;
virtual bool good() const = 0;
virtual bool is_set(char short_opt) const = 0;
virtual bool is_set(std::string const& long_opt) const = 0;
virtual char const* arg(char short_opt, char const* fallback) const = 0;
virtual char const* arg(std::string const& long_opt,
char const* fallback) const = 0;
virtual std::vector<std::string> const& arguments() const = 0;
void print_help() const {
print_help(std::cout);
}
virtual void print_help(std::ostream& out) const = 0;
virtual void print_help(std::ostream& out, size_t width) const = 0;
protected:
Args() {}
Args(Args const&) = delete;
};
#endif // ARGS_HH
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