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