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- #include <iostream>
- #include <boost/date_time/local_time/local_time.hpp>
- int main(){
- using namespace boost::gregorian;
- using namespace boost::posix_time;
- using namespace boost::local_time;
- using namespace std;
- /****** basic use ******/
- date d(2004, Feb, 29);
- time_duration td(12,34,56,789);
- stringstream ss;
- ss << d << ' ' << td;
- ptime pt(not_a_date_time);
- cout << pt << endl; // "not-a-date-time"
- ss >> pt;
- cout << pt << endl; // "2004-Feb-29 12:34:56.000789"
- ss.str("");
- ss << pt << " EDT-05EDT,M4.1.0,M10.5.0";
- local_date_time ldt(not_a_date_time);
- ss >> ldt;
- cout << ldt << endl; // " 2004-Feb-29 12:34:56.000789 EDT"
- /****** format strings ******/
- local_time_facet* output_facet = new local_time_facet();
- local_time_input_facet* input_facet = new local_time_input_facet();
- ss.imbue(locale(locale::classic(), output_facet));
- ss.imbue(locale(ss.getloc(), input_facet));
- output_facet->format("%a %b %d, %H:%M %z");
- ss.str("");
- ss << ldt;
- cout << ss.str() << endl; // "Sun Feb 29, 12:34 EDT"
- output_facet->format(local_time_facet::iso_time_format_specifier);
- ss.str("");
- ss << ldt;
- cout << ss.str() << endl; // "20040229T123456.000789-0500"
- output_facet->format(local_time_facet::iso_time_format_extended_specifier);
- ss.str("");
- ss << ldt;
- cout << ss.str() << endl; // "2004-02-29 12:34:56.000789-05:00"
-
- // extra words in format
- string my_format("The extended ordinal time %Y-%jT%H:%M can also be represented as %A %B %d, %Y");
- output_facet->format(my_format.c_str());
- input_facet->format(my_format.c_str());
- ss.str("");
- ss << ldt;
- cout << ss.str() << endl;
- // matching extra words in input
- ss.str("The extended ordinal time 2005-128T12:15 can also be represented as Sunday May 08, 2005");
- ss >> ldt;
- cout << ldt << endl; // cout is using default format "2005-May-08 12:15:00 UTC"
- /****** content strings ******/
- // set up the collections of custom strings.
- // only the full names are altered for the sake of brevity
- string month_names[12] = { "january", "february", "march",
- "april", "may", "june",
- "july", "august", "september",
- "october", "november", "december" };
- vector<string> long_months(&month_names[0], &month_names[12]);
- string day_names[7] = { "sunday", "monday", "tuesday", "wednesday",
- "thursday", "friday", "saturday" };
- vector<string> long_days(&day_names[0], &day_names[7]);
-
- // create date_facet and date_input_facet using all defaults
- date_facet* date_output = new date_facet();
- date_input_facet* date_input = new date_input_facet();
- ss.imbue(locale(ss.getloc(), date_output));
- ss.imbue(locale(ss.getloc(), date_input));
- // replace names in the output facet
- date_output->long_month_names(long_months);
- date_output->long_weekday_names(long_days);
-
- // replace names in the input facet
- date_input->long_month_names(long_months);
- date_input->long_weekday_names(long_days);
-
- // customize month, weekday and date formats
- date_output->format("%Y-%B-%d");
- date_input->format("%Y-%B-%d");
- date_output->month_format("%B"); // full name
- date_input->month_format("%B"); // full name
- date_output->weekday_format("%A"); // full name
- date_input->weekday_format("%A"); // full name
- ss.str("");
- ss << greg_month(3);
- cout << ss.str() << endl; // "march"
- ss.str("");
- ss << greg_weekday(3);
- cout << ss.str() << endl; // "tuesday"
- ss.str("");
- ss << date(2005,Jul,4);
- cout << ss.str() << endl; // "2005-july-04"
- /****** special values ******/
- // reset the formats to defaults
- output_facet->format(local_time_facet::default_time_format);
- input_facet->format(local_time_input_facet::default_time_input_format);
- // create custom special_values parser and formatter objects
- // and add them to the facets
- string sv[5] = {"nadt","neg_inf", "pos_inf", "min_dt", "max_dt" };
- vector<string> sv_names(&sv[0], &sv[5]);
- special_values_parser sv_parser(sv_names.begin(), sv_names.end());
- special_values_formatter sv_formatter(sv_names.begin(), sv_names.end());
- output_facet->special_values_formatter(sv_formatter);
- input_facet->special_values_parser(sv_parser);
- ss.str("");
- ldt = local_date_time(not_a_date_time);
- ss << ldt;
- cout << ss.str() << endl; // "nadt"
-
- ss.str("min_dt");
- ss >> ldt;
- ss.str("");
- ss << ldt;
- cout << ss.str() << endl; // "1400-Jan-01 00:00:00 UTC"
- /****** date/time periods ******/
- // reset all formats to defaults
- date_output->format(date_facet::default_date_format);
- date_input->format(date_facet::default_date_format);
- date_output->month_format("%b"); // abbrev
- date_input->month_format("%b"); // abbrev
- date_output->weekday_format("%a"); // abbrev
- date_input->weekday_format("%a"); // abbrev
- // create our date_period
- date_period dp(date(2005,Mar,1), days(31)); // month of march
- // custom period formatter and parser
- period_formatter per_formatter(period_formatter::AS_OPEN_RANGE,
- " to ", "from ", " exclusive", " inclusive" );
- period_parser per_parser(period_parser::AS_OPEN_RANGE,
- " to ", "from ", " exclusive" , " inclusive" );
-
- // default output
- ss.str("");
- ss << dp;
- cout << ss.str() << endl; // "[2005-Mar-01/2005-Mar-31]"
-
- // add out custom parser and formatter to the facets
- date_output->period_formatter(per_formatter);
- date_input->period_parser(per_parser);
-
- // custom output
- ss.str("");
- ss << dp;
- cout << ss.str() << endl; // "from 2005-Feb-01 to 2005-Apr-01 exclusive"
-
-
- /****** date generators ******/
- // custom date_generator phrases
- string dg_phrases[9] = { "1st", "2nd", "3rd", "4th", "5th",
- "final", "prior to", "following", "in" };
- vector<string> phrases(&dg_phrases[0], &dg_phrases[9]);
- // create our date_generator
- first_day_of_the_week_before d_gen(Monday);
- // default output
- ss.str("");
- ss << d_gen;
- cout << ss.str() << endl; // "Mon before"
-
- // add our custom strings to the date facets
- date_output->date_gen_phrase_strings(phrases);
- date_input->date_gen_element_strings(phrases);
-
- // custom output
- ss.str("");
- ss << d_gen;
- cout << ss.str() << endl; // "Mon prior to"
-
- return 0;
- }
- /* Copyright 2005: CrystalClear Software, Inc
- * http://www.crystalclearsoftware.com
- *
- * 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)
- */
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