// Copyright (c) 1996 James Clark, 1999 Matthias Clasen

// See the file COPYING for copying permission.

#ifndef Options_INCLUDED

#define Options_INCLUDED 1

#include "Boolean.h"

#include "Vector.h"

#ifdef SP_NAMESPACE

namespace SP_NAMESPACE {

#endif

// This is a mildly C++ified version of getopt().

// (extended to include getopt_long() functionality.)

// It never prints any message.

template<class T>

class LongOption {

public:

  const T *name;

  T key;

  T value;

  bool hasArgument;

};

template<class T>

class Options {

public:

  Options(int argc, T *const *, const Vector<LongOption<T> > &);

  // Returns false if there are no more options.

  bool get(T &);

  T *arg() const { return arg_; } // optarg

  T opt() const { return opt_; }  // optopt

  int ind() const { return ind_; } // optind

  int longIndex() const { return optInd_; } // longindex

private:

  bool search(T);

  bool searchLong(const T *);

  T *const *argv_;

  int argc_;

  int ind_;

  T opt_;

  T *arg_;

  int sp_;

  Vector<LongOption<T> > opts_;

  int optInd_;

};

#ifdef SP_NAMESPACE

}

#endif

#endif /* not Options_INCLUDED */

#ifdef SP_DEFINE_TEMPLATES

#include "Options.cxx"

#endif