icuSources/samples/dtptngsample/dtptngsample.cpp

   1 /********************************************************************
   2  * COPYRIGHT:
   3  * Copyright (c) 2008-2014, International Business Machines Corporation and
   4  * others. All Rights Reserved.
   5  ********************************************************************/
   6 //! [getBestPatternExample1]
   7 #include <iostream>
   8 #include "unicode/smpdtfmt.h"
   9 #include "unicode/dtptngen.h"
  10 #include "unicode/ustdio.h"
  11 //! [getBestPatternExample1]
  12
  13 using namespace std;
  14
  15 static void getBestPatternExample() {
  16
  17                 u_printf("========================================================================\n");
  18                 u_printf(" getBestPatternExample()\n");
  19         u_printf("\n");
  20         u_printf(" Use DateTimePatternGenerator to create customized date/time pattern:\n");
  21         u_printf(" yQQQQ,yMMMM, MMMMd, hhmm, jjmm per locale\n");
  22         u_printf("========================================================================\n");
  23                 //! [getBestPatternExample]
  24         UnicodeString skeletons [] = {
  25                 UnicodeString("yQQQQ"), // year + full name of quarter, i.e., 4th quarter 1999
  26         UnicodeString("yMMMM"), // year + full name of month, i.e., October 1999
  27         UnicodeString("MMMMd"), // full name of month + day of the month, i.e., October 25
  28         UnicodeString("hhmm"),  // 12-hour-cycle format, i.e., 1:32 PM
  29         UnicodeString("jjmm"), // preferred hour format for the given locale, i.e., 24-hour-cycle format for fr_FR
  30                 0,
  31         };
  32
  33         Locale locales[] = {
  34                 Locale ("en_US"),
  35                 Locale ("fr_FR"),
  36                 Locale ("zh_CN"),
  37         };
  38
  39         const char* filename = "sample.txt";
  40         /* open a UTF-8 file for writing */
  41         UFILE* f = u_fopen(filename, "w", NULL,"UTF-8");
  42         UnicodeString dateReturned;
  43         UErrorCode status =U_ZERO_ERROR;
  44         Calendar *cal = Calendar::createInstance(status);
  45         cal->set (1999,9,13,23,58,59);
  46         UDate date = cal->getTime(status);
  47         u_fprintf(f, "%-20S%-20S%-20S%-20S\n", UnicodeString("Skeleton").getTerminatedBuffer(),UnicodeString("en_US").getTerminatedBuffer(),UnicodeString("fr_FR").getTerminatedBuffer(),UnicodeString("zh_CN").getTerminatedBuffer());
  48         for (int i=0;skeletons[i]!=NULL;i++) {
  49                 u_fprintf(f, "%-20S",skeletons[i].getTerminatedBuffer());
  50                 for (int j=0;j<sizeof(locales)/sizeof(locales[0]);j++) {
  51                         // create a DateTimePatternGenerator instance for given locale
  52                         DateTimePatternGenerator *dtfg= DateTimePatternGenerator::createInstance(locales[j],status);
  53                         // use getBestPattern method to get the best pattern for the given skeleton
  54                         UnicodeString pattern = dtfg->getBestPattern(skeletons[i],status);
  55                         // Constructs a SimpleDateFormat with the best pattern generated above and the given locale
  56                         SimpleDateFormat *sdf = new SimpleDateFormat(pattern,locales[j],status);
  57                         dateReturned.remove();
  58                         // Get the format of the given date
  59                         sdf->format(date,dateReturned,status);
  60                         /* write Unicode string to file */
  61                         u_fprintf(f, "%-20S", dateReturned.getTerminatedBuffer());
  62                         delete dtfg;
  63                         delete sdf;
  64                 }
  65                 u_fprintf(f,"\n");
  66         }
  67         /* close the file resource */
  68         u_fclose(f);
  69         delete cal;
  70         //! [getBestPatternExample]
  71 }
  72
  73 static void addPatternExample() {
  74
  75                 u_printf("========================================================================\n");
  76         u_printf(" addPatternExample()\n");
  77                 u_printf("\n");
  78         u_printf(" Use addPattern API to add new '. von' to existing pattern\n");
  79         u_printf("========================================================================\n");
  80                 //! [addPatternExample]
  81                 UErrorCode status =U_ZERO_ERROR;
  82                 UnicodeString conflictingPattern,dateReturned, pattern;
  83                 Locale locale=Locale::getFrance();
  84                 Calendar *cal = Calendar::createInstance(status);
  85                 cal->set (1999,9,13,23,58,59);
  86                 UDate date = cal->getTime(status);
  87         // Create an DateTimePatternGenerator instance for the given locale
  88                 DateTimePatternGenerator *dtfg= DateTimePatternGenerator::createInstance(locale,status);
  89                 SimpleDateFormat *sdf = new SimpleDateFormat(dtfg->getBestPattern("MMMMddHmm",status),locale,status);
  90         // Add '. von' to the existing pattern
  91         dtfg->addPattern("dd'. von' MMMM", true, conflictingPattern,status);
  92         // Apply the new pattern
  93         sdf->applyPattern(dtfg->getBestPattern("MMMMddHmm",status));
  94                 dateReturned = sdf->format(date, dateReturned, status);
  95                 pattern =sdf->toPattern(pattern);
  96                 u_printf("%s\n", "New Pattern for FRENCH: ");
  97         u_printf("%S\n", pattern.getTerminatedBuffer());
  98                 u_printf("%s\n", "Date Time in new Pattern: ");
  99                 u_printf("%S\n", dateReturned.getTerminatedBuffer());
 100                 delete dtfg;
 101                 delete sdf;
 102                 delete cal;
 103
 104                 //! [addPatternExample]
 105         /* output of the sample code:
 106         ************************************************************************************************
 107          New Pattern for FRENCH: dd. 'von' MMMM HH:mm
 108          Date Time in new Pattern: 13. von octobre 23:58
 109
 110         *************************************************************************************************/
 111         }
 112
 113 static void replaceFieldTypesExample() {
 114                 // Use repalceFieldTypes API to replace zone 'zzzz' with 'vvvv'
 115        u_printf("========================================================================\n");
 116        u_printf(" replaceFieldTypeExample()\n");
 117        u_printf("\n");
 118        u_printf(" Use replaceFieldTypes API to replace zone 'zzzz' with 'vvvv'\n");
 119        u_printf("========================================================================\n");
 120            //! [replaceFieldTypesExample]
 121                 UFILE *out = u_finit(stdout, NULL, "UTF-8");
 122                 UErrorCode status =U_ZERO_ERROR;
 123                 UnicodeString pattern,dateReturned;
 124                 Locale locale =Locale::getFrance();
 125                 Calendar *cal = Calendar::createInstance(status);
 126                 cal->set (1999,9,13,23,58,59);
 127                 UDate date = cal->getTime(status);
 128                 TimeZone *zone = TimeZone::createTimeZone(UnicodeString("Europe/Paris"));
 129                 DateTimePatternGenerator *dtfg = DateTimePatternGenerator::createInstance(locale,status);
 130             SimpleDateFormat *sdf = new SimpleDateFormat("EEEE d MMMM y HH:mm:ss zzzz",locale,status);
 131                 sdf->setTimeZone(*zone);
 132                 pattern = sdf->toPattern(pattern);
 133                 u_fprintf(out, "%S\n", UnicodeString("Pattern before replacement:").getTerminatedBuffer());
 134         u_fprintf(out, "%S\n", pattern.getTerminatedBuffer());
 135                 dateReturned.remove();
 136                 dateReturned = sdf->format(date, dateReturned, status);
 137                 u_fprintf(out, "%S\n", UnicodeString("Date/Time format in fr_FR:").getTerminatedBuffer());
 138                 u_fprintf(out, "%S\n", dateReturned.getTerminatedBuffer());
 139         // Replace zone "zzzz" in the pattern with "vvvv"
 140                 UnicodeString newPattern = dtfg->replaceFieldTypes(pattern, "vvvv", status);
 141                 // Apply the new pattern
 142                 sdf->applyPattern(newPattern);
 143                 dateReturned.remove();
 144                 dateReturned = sdf->format(date, dateReturned, status);
 145                 u_fprintf(out, "%S\n", UnicodeString("Pattern after replacement:").getTerminatedBuffer());
 146         u_fprintf(out, "%S\n", newPattern.getTerminatedBuffer());
 147         u_fprintf(out, "%S\n", UnicodeString("Date/Time format in fr_FR:").getTerminatedBuffer());
 148                 u_fprintf(out, "%S\n", dateReturned.getTerminatedBuffer());
 149                 delete sdf;
 150                 delete dtfg;
 151                 delete zone;
 152                 delete cal;
 153                 u_fclose(out);
 154         //! [replaceFieldTypesExample]
 155     }
 156
 157 int main (int argc, char* argv[])
 158 {
 159         getBestPatternExample();
 160         addPatternExample();
 161         replaceFieldTypesExample();
 162         return 0;
 163 }