icuSources/samples/datefmt/main.cpp

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