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// Copyright (C) 2006 Timothy Brownawell <tbrownaw@gmail.com>
//
// This program is made available under the GNU GPL version 2.0 or
// greater. See the accompanying file COPYING for details.
//
// This program is distributed WITHOUT ANY WARRANTY; without even the
// implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE.
#ifndef __OPTIONS_HH__
#define __OPTIONS_HH__
/*
* This defines 'struct options', which includes the variables and options
* defined in options_list.hh as members. Options and optsets are available
* statically as options::opts::<name>, and option variables are available
* as options::<name>.
*/
#include <algorithm>
#include <list>
#include <climits>
#include "option.hh"
#include "paths.hh"
#include "dates.hh"
#include "lexical_cast.hh"
template<long low>
class restricted_long
{
long value;
public:
restricted_long()
{
if (-1 < low)
value = -1;
else
value = low - 1;
}
restricted_long(std::string const & x, origin::type o)
{
value = boost::lexical_cast<long>(x);
if (value < low)
throw option::bad_arg_internal((F("must not be less than %d") % low).str());
}
operator long() const { return value; }
};
class enum_string
{
std::vector<std::string> allowed;
std::string allowed_str;
std::string value;
public:
enum_string() { }
enum_string(std::string a) : allowed_str(a)
{
size_t x = a.find(",");
while (x != std::string::npos)
{
allowed.push_back(a.substr(0, x));
a.erase(0, x + 1);
x = a.find(",");
}
allowed.push_back(a);
I(allowed.size() >= 2);
value = idx(allowed, 0);
}
void set(std::string const & v)
{
if (std::find(allowed.begin(), allowed.end(), v) == allowed.end())
{
throw option::bad_arg_internal((F("must be one of the following: %s")
% allowed_str).str());
}
else
value = v;
}
void unchecked_set(std::string const & v) { value = v; }
operator std::string() const { return value; }
bool operator<(enum_string const & e) const { return value < e.value; }
bool operator==(std::string const & s) const { return value == s; }
bool empty() const { return value.empty(); }
};
class enum_string_set
{
std::string allowed;
std::set<enum_string> value;
public:
enum_string_set() { }
enum_string_set(std::string const & a) : allowed(a) { }
void add(std::string const & v)
{
enum_string e(allowed);
e.set(v);
value.insert(e);
}
operator std::set<enum_string>() const { return value; }
std::set<enum_string>::const_iterator find(std::string const & s) const
{
enum_string e(allowed);
e.set(s);
return value.find(e);
}
std::set<enum_string>::const_iterator end() const
{
return value.end();
}
};
struct options
{
options();
const options & operator = (options const & other);
typedef boost::function<void()> reset_function;
typedef option::option<options> option_type;
typedef option::option_set<options> options_type;
typedef options_type const & (*static_options_fun)();
static std::map<static_options_fun, std::set<static_options_fun> > &children();
static std::map<static_options_fun, std::list<void(options::*)()> > &var_membership();
static std::map<static_options_fun, bool> &hidden();
static std::map<static_options_fun, char const *> &deprecated();
void reset_optset(static_options_fun opt);
struct opts
{
static options_type const & none ();
static options_type const & all_options ();
# define OPTSET(name) \
static options_type const & name ();
# define OPTVAR(optset, type, name, default_)
#define OPTION(optset, name, hasarg, optstring, description) \
static options_type const & name ## _opt ();
# define OPTSET_REL(parent, child)
# define HIDE(option)
# define DEPRECATE(option, reason, deprecated_in, will_remove_in)
# include "options_list.hh"
# undef OPTSET
# undef OPTVAR
# undef OPTION
# undef OPTSET_REL
# undef HIDE
# undef DEPRECATE
};
# define OPTSET(name) \
private: \
void reset_optset_ ## name ();
# define OPTVAR(optset, type, name, default_) \
public: \
type name; \
void reset_ ## name ();
#define OPTION(optset, name, hasarg, optstring, description) \
public: \
bool name ## _given; \
private: \
void set_ ## name (std::string arg); \
void real_set_ ## name (std::string arg); \
void reset_opt_ ## name ();
# define OPTSET_REL(parent, child)
# define HIDE(option)
# define DEPRECATE(option, reason, deprecated_in, will_remove_in)
# include "options_list.hh"
# undef OPTSET
# undef OPTVAR
# undef OPTION
# undef OPTSET_REL
# undef HIDE
# undef DEPRECATE
};
option::option_set<options>
operator | (option::option_set<options> const & opts,
option::option_set<options> const & (*fun)());
#endif
// Local Variables:
// mode: C++
// fill-column: 76
// c-file-style: "gnu"
// indent-tabs-mode: nil
// End:
// vim: et:sw=2:sts=2:ts=2:cino=>2s,{s,\:s,+s,t0,g0,^-2,e-2,n-2,p2s,(0,=s:
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