functions.cc

#include "options.h"

// $Id$

namespace Utilities {

  bool string_to_T(bool &b, const string& s) {
    if(s.length() == 0)
      {
	b = !b;
	return true;
      }
    else if (s == "true")
      {
	b = true;
	return true;
      }
    else if (s == "false")
      {
	b = false;
	return true;
      }
    else
      return false;
  }

  bool string_to_T(string& d, const string& s) {
    d = s;
    return true;
  }

  bool string_to_T(int& i, const string& s) {
    char *endptr = 0; const char *str = s.c_str();
    i = strtol(str, &endptr, 0);
    if(*endptr == str[s.length()])
      return true;
    else
      return false;
  }

  bool string_to_T(float& v, const string& s) {
    char *endptr = 0; const char *str = s.c_str();
    v = strtod(str, &endptr);
    if(*endptr == str[s.length()])
      return true;
    else
      return false;
  }

  ostream& operator<<(ostream &os, const BaseOption& o) {
    return os << 
      "\t" << o.key() << 
      "\t" << o.help_text();
  }

}