icuSources/i18n/udatintv.cpp

   1 /*
   2 *****************************************************************************************
   3 * Copyright (C) 2010 Apple Inc. All Rights Reserved.
   4 *****************************************************************************************
   5 */
   6
   7 #include "unicode/utypes.h"
   8
   9 #if !UCONFIG_NO_FORMATTING
  10
  11 #include "unicode/udatintv.h"
  12 #include "unicode/dtitvfmt.h"
  13 #include "unicode/dtintrv.h"
  14 #include "unicode/locid.h"
  15 #include "unicode/unistr.h"
  16
  17 U_NAMESPACE_USE
  18
  19
  20 U_CAPI UDateIntervalFormat* U_EXPORT2
  21 udatintv_open(const char*  locale,
  22               const UChar* skeleton,
  23               int32_t      skeletonLength,
  24               UErrorCode*  status)
  25 {
  26     if (U_FAILURE(*status)) {
  27         return 0;
  28     }
  29     UnicodeString skel((UBool)(skeletonLength == -1), skeleton, skeletonLength);
  30     return (UDateIntervalFormat*)DateIntervalFormat::createInstance(skel, Locale(locale), *status);
  31 }
  32
  33
  34 U_CAPI void U_EXPORT2
  35 udatintv_close(UDateIntervalFormat *datintv)
  36 {
  37     delete (DateIntervalFormat*)datintv;
  38 }
  39
  40
  41 U_INTERNAL int32_t U_EXPORT2
  42 udatintv_format(const UDateIntervalFormat* datintv,
  43                 UDate           fromDate,
  44                 UDate           toDate,
  45                 UChar*          result,
  46                 int32_t         resultCapacity,
  47                 UFieldPosition* position,
  48                 UErrorCode*     status)
  49 {
  50     if (U_FAILURE(*status)) {
  51         return -1;
  52     }
  53     UnicodeString res;
  54     if (!(result==NULL && resultCapacity==0)) {
  55         // NULL destination for pure preflighting: empty dummy string
  56         // otherwise, alias the destination buffer (copied from udat_format)
  57         res.setTo(result, 0, resultCapacity);
  58     }
  59     FieldPosition fp;
  60     if (position != 0) {
  61         fp.setField(position->field);
  62     }
  63
  64     DateInterval interval = DateInterval(fromDate,toDate);
  65     ((const DateIntervalFormat*)datintv)->format( &interval, res, fp, *status );
  66     if (U_FAILURE(*status)) {
  67         return -1;
  68     }
  69     if (position != 0) {
  70         position->beginIndex = fp.getBeginIndex();
  71         position->endIndex = fp.getEndIndex();
  72     }
  73
  74     return res.extract(result, resultCapacity, *status);
  75 }
  76
  77
  78 #endif /* #if !UCONFIG_NO_FORMATTING */