ledger/option.h
2008-04-13 02:41:27 -04:00

36 lines
883 B
C++

#ifndef _OPTION_H
#define _OPTION_H
#include <list>
#include <string>
#include <exception>
typedef void (*handler_t)(const char * arg);
struct option_t {
const char * long_opt;
char short_opt;
bool wants_arg;
handler_t handler;
bool handled;
};
class option_error : public std::exception {
std::string reason;
public:
option_error(const std::string& _reason) throw() : reason(_reason) {}
virtual ~option_error() throw() {}
virtual const char* what() const throw() {
return reason.c_str();
}
};
bool process_option(option_t * options, const std::string& opt,
const char * arg = NULL);
void process_arguments(option_t * options, int argc, char ** argv,
const bool anywhere, std::list<std::string>& args);
void process_environment(option_t * options, char ** envp,
const std::string& tag);
#endif // _OPTION_H