Boost.Locale: calendar.cpp - Arangodb

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calendar.cpp

Example of using date_time functions for generating calendar for current year.

// Distributed under the Boost Software License, Version 1.0. (See

// accompanying file LICENSE_1_0.txt or copy at

// http://www.boost.org/LICENSE\_1\_0.txt)

#include <boost/locale.hpp>

#include <iostream>

#include <iomanip>

#include <ctime>

int main()

{

using namespace boost::locale;

generator gen;

std::locale::global(gen(""));

std::cout.imbue(std::locale());

// Setup environment

boost::locale::date_time now;

date_time start=now;

// Set the first day of the first month of this year

start.set(period::month(),now.minimum(period::month()));

start.set(period::day(),start.minimum(period::day()));

int current_year = period::year(now);

// Display current year

std::cout << format("{1,ftime='%Y'}") % now << std::endl;

// Run forward untill current year is the date

for(now=start; period::year(now) == current_year;) {

// Print heading of month

if(calendar().is_gregorian())

std::cout << format("{1,ftime='%B'}") % now <<std::endl;

else

std::cout << format("{1,ftime='%B'} ({1,ftime='%Y-%m-%d',locale=en} - {2,locale=en,ftime='%Y-%m-%d'})")

% now

% date_time(now,now.maximum(period::day())*period::day()) << std::endl;

int first = calendar().first_day_of_week();

// Print weeks days

for(int i=0;i<7;i++) {

date_time tmp(now,period::day_of_week() * (first + i));

std::cout << format("{1,w=8,ftime='%a'} ") % tmp;

}

std::cout << std::endl;

int current_month = now / period::month();

int skip = now / period::day_of_week_local() - 1;

for(int i=0;i<skip*9;i++)

std::cout << ' ';

for(;now / period::month() == current_month ;now += period::day()) {

std::cout << format("{1,w=8,ftime='%e'} ") % now;

if(now / period::day_of_week_local() == 7)

std::cout << std::endl;

}

std::cout << std::endl;

}

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