| #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) |
| */ |
| |