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      1 /*************************************************************************
      2  *    2016 and later: Unicode, Inc. and others.
      3  *   License & terms of use: http://www.unicode.org/copyright.html#License
      4  *************************************************************************
      5  *************************************************************************
      6  * COPYRIGHT:
      7  * Copyright (c) 1999-2003, International Business Machines Corporation and
      8  * others. All Rights Reserved.
      9  *************************************************************************/
     10 
     11 #include "unicode/unistr.h"
     12 #include "unicode/calendar.h"
     13 #include "unicode/datefmt.h"
     14 #include <stdio.h>
     15 #include <stdlib.h>
     16 #include "util.h"
     17 
     18 using namespace icu;
     19 
     20 /**
     21  * If the ID supplied to TimeZone is not a valid system ID,
     22  * TimeZone::createTimeZone() will return a GMT zone object.  In order
     23  * to detect this error, we check the ID of the returned zone against
     24  * the ID we requested.  If they don't match, we fail with an error.
     25  */
     26 TimeZone* createZone(const UnicodeString& id) {
     27     UnicodeString str;
     28     TimeZone* zone = TimeZone::createTimeZone(id);
     29     if (zone->getID(str) != id) {
     30         delete zone;
     31         printf("Error: TimeZone::createTimeZone(");
     32         uprintf(id);
     33         printf(") returned zone with ID ");
     34         uprintf(str);
     35         printf("\n");
     36         exit(1);
     37     }
     38     return zone;
     39 }
     40 
     41 int main(int argc, char **argv) {
     42 
     43     Calendar *cal;
     44     TimeZone *zone;
     45     DateFormat *fmt;
     46     UErrorCode status = U_ZERO_ERROR;
     47     UnicodeString str;
     48     UDate date;
     49 
     50     // The languages in which we will display the date
     51     static char* LANGUAGE[] = {
     52         "en", "de", "fr"
     53     };
     54     static const int32_t N_LANGUAGE = sizeof(LANGUAGE)/sizeof(LANGUAGE[0]);
     55 
     56     // The time zones in which we will display the time
     57     static char* TIMEZONE[] = {
     58         "America/Los_Angeles",
     59         "America/New_York",
     60         "Europe/Paris",
     61         "Europe/Berlin"
     62     };
     63     static const int32_t N_TIMEZONE = sizeof(TIMEZONE)/sizeof(TIMEZONE[0]);
     64 
     65     // Create a calendar
     66     cal = Calendar::createInstance(status);
     67     check(status, "Calendar::createInstance");
     68     zone = createZone("GMT"); // Create a GMT zone
     69     cal->adoptTimeZone(zone);
     70     cal->clear();
     71     cal->set(1999, Calendar::JUNE, 4);
     72     date = cal->getTime(status);
     73     check(status, "Calendar::getTime");
     74 
     75     for (int32_t i=0; i<N_LANGUAGE; ++i) {
     76         Locale loc(LANGUAGE[i]);
     77 
     78         // Create a formatter for DATE and TIME
     79         fmt = DateFormat::createDateTimeInstance(
     80                                 DateFormat::kFull, DateFormat::kFull, loc);
     81 
     82         for (int32_t j=0; j<N_TIMEZONE; ++j) {
     83 
     84             cal->adoptTimeZone(createZone(TIMEZONE[j]));
     85             fmt->setCalendar(*cal);
     86 
     87             // Format the date
     88             str.remove();
     89             fmt->format(date, str, status);
     90 
     91             // Display the formatted date string
     92             printf("Date (%s, %s): ", LANGUAGE[i], TIMEZONE[j]);
     93             uprintf(escape(str));
     94             printf("\n\n");
     95         }
     96 
     97         delete fmt;
     98     }
     99 
    100     printf("Exiting successfully\n");
    101     return 0;
    102 }
    103