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#ifndef DATE_TIME_DATE_FORMATTING_LOCALES_HPP___
#define DATE_TIME_DATE_FORMATTING_LOCALES_HPP___
/* Copyright (c) 2002,2003 CrystalClear Software, Inc.
* Use, modification and distribution is subject to the
* Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
* Author: Jeff Garland, Bart Garst
* $Date$
*/
#include "boost/date_time/locale_config.hpp" // set BOOST_DATE_TIME_NO_LOCALE
#ifndef BOOST_DATE_TIME_NO_LOCALE
#include "boost/date_time/iso_format.hpp"
#include "boost/date_time/date_names_put.hpp"
#include "boost/date_time/parse_format_base.hpp"
#include <boost/io/ios_state.hpp>
//#include <string>
#include <sstream>
#include <iomanip>
namespace boost {
namespace date_time {
//! Formats a month as as string into an ostream
template<class facet_type,
class charT = char>
class ostream_month_formatter
{
public:
typedef typename facet_type::month_type month_type;
typedef std::basic_ostream<charT> ostream_type;
//! Formats a month as as string into an output iterator
static void format_month(const month_type& month,
ostream_type& os,
const facet_type& f)
{
switch (f.month_format())
{
case month_as_short_string:
{
std::ostreambuf_iterator<charT> oitr(os);
f.put_month_short(oitr, month.as_enum());
break;
}
case month_as_long_string:
{
std::ostreambuf_iterator<charT> oitr(os);
f.put_month_long(oitr, month.as_enum());
break;
}
case month_as_integer:
{
boost::io::basic_ios_fill_saver<charT> ifs(os);
os << std::setw(2) << std::setfill(os.widen('0')) << month.as_number();
break;
}
}
} // format_month
};
//! Formats a weekday
template<class weekday_type,
class facet_type,
class charT = char>
class ostream_weekday_formatter
{
public:
typedef typename facet_type::month_type month_type;
typedef std::basic_ostream<charT> ostream_type;
//! Formats a month as as string into an output iterator
static void format_weekday(const weekday_type& wd,
ostream_type& os,
const facet_type& f,
bool as_long_string)
{
std::ostreambuf_iterator<charT> oitr(os);
if (as_long_string) {
f.put_weekday_long(oitr, wd.as_enum());
}
else {
f.put_weekday_short(oitr, wd.as_enum());
}
} // format_weekday
};
//! Convert ymd to a standard string formatting policies
template<class ymd_type,
class facet_type,
class charT = char>
class ostream_ymd_formatter
{
public:
typedef typename ymd_type::month_type month_type;
typedef ostream_month_formatter<facet_type, charT> month_formatter_type;
typedef std::basic_ostream<charT> ostream_type;
typedef std::basic_string<charT> foo_type;
//! Convert ymd to a standard string formatting policies
/*! This is standard code for handling date formatting with
* year-month-day based date information. This function
* uses the format_type to control whether the string will
* contain separator characters, and if so what the character
* will be. In addtion, it can format the month as either
* an integer or a string as controled by the formatting
* policy
*/
// static string_type ymd_to_string(ymd_type ymd)
// {
// std::ostringstream ss;
// facet_type dnp;
// ymd_put(ymd, ss, dnp);
// return ss.str();
// }
// Put ymd to ostream -- part of ostream refactor
static void ymd_put(ymd_type ymd,
ostream_type& os,
const facet_type& f)
{
boost::io::basic_ios_fill_saver<charT> ifs(os);
std::ostreambuf_iterator<charT> oitr(os);
switch (f.date_order()) {
case ymd_order_iso: {
os << ymd.year;
if (f.has_date_sep_chars()) {
f.month_sep_char(oitr);
}
month_formatter_type::format_month(ymd.month, os, f);
if (f.has_date_sep_chars()) {
f.day_sep_char(oitr);
}
os << std::setw(2) << std::setfill(os.widen('0'))
<< ymd.day;
break;
}
case ymd_order_us: {
month_formatter_type::format_month(ymd.month, os, f);
if (f.has_date_sep_chars()) {
f.day_sep_char(oitr);
}
os << std::setw(2) << std::setfill(os.widen('0'))
<< ymd.day;
if (f.has_date_sep_chars()) {
f.month_sep_char(oitr);
}
os << ymd.year;
break;
}
case ymd_order_dmy: {
os << std::setw(2) << std::setfill(os.widen('0'))
<< ymd.day;
if (f.has_date_sep_chars()) {
f.day_sep_char(oitr);
}
month_formatter_type::format_month(ymd.month, os, f);
if (f.has_date_sep_chars()) {
f.month_sep_char(oitr);
}
os << ymd.year;
break;
}
}
}
};
//! Convert a date to string using format policies
template<class date_type,
class facet_type,
class charT = char>
class ostream_date_formatter
{
public:
typedef std::basic_ostream<charT> ostream_type;
typedef typename date_type::ymd_type ymd_type;
//! Put date into an ostream
static void date_put(const date_type& d,
ostream_type& os,
const facet_type& f)
{
special_values sv = d.as_special();
if (sv == not_special) {
ymd_type ymd = d.year_month_day();
ostream_ymd_formatter<ymd_type, facet_type, charT>::ymd_put(ymd, os, f);
}
else { // output a special value
std::ostreambuf_iterator<charT> coi(os);
f.put_special_value(coi, sv);
}
}
//! Put date into an ostream
static void date_put(const date_type& d,
ostream_type& os)
{
//retrieve the local from the ostream
std::locale locale = os.getloc();
if (std::has_facet<facet_type>(locale)) {
const facet_type& f = std::use_facet<facet_type>(locale);
date_put(d, os, f);
}
else {
//default to something sensible if no facet installed
facet_type default_facet;
date_put(d, os, default_facet);
}
} // date_to_ostream
}; //class date_formatter
} } //namespace date_time
#endif
#endif
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