icuSources/i18n/upluralrules.cpp

   1 // © 2016 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3 /*
   4 *****************************************************************************************
   5 * Copyright (C) 2010-2012, International Business Machines
   6 * Corporation and others. All Rights Reserved.
   7 *****************************************************************************************
   8 */
   9
  10 #include "unicode/utypes.h"
  11
  12 #if !UCONFIG_NO_FORMATTING
  13
  14 #include "unicode/upluralrules.h"
  15 #include "unicode/plurrule.h"
  16 #include "unicode/locid.h"
  17 #include "unicode/unistr.h"
  18 #include "unicode/unum.h"
  19 #include "unicode/numfmt.h"
  20
  21 U_NAMESPACE_USE
  22
  23
  24 U_CAPI UPluralRules* U_EXPORT2
  25 uplrules_open(const char *locale, UErrorCode *status)
  26 {
  27     return uplrules_openForType(locale, UPLURAL_TYPE_CARDINAL, status);
  28 }
  29
  30 U_CAPI UPluralRules* U_EXPORT2
  31 uplrules_openForType(const char *locale, UPluralType type, UErrorCode *status)
  32 {
  33     return (UPluralRules*)PluralRules::forLocale(Locale(locale), type, *status);
  34 }
  35
  36 U_CAPI void U_EXPORT2
  37 uplrules_close(UPluralRules *uplrules)
  38 {
  39     delete (PluralRules*)uplrules;
  40 }
  41
  42 U_CAPI int32_t U_EXPORT2
  43 uplrules_select(const UPluralRules *uplrules,
  44                 double number,
  45                 UChar *keyword, int32_t capacity,
  46                 UErrorCode *status)
  47 {
  48     if (U_FAILURE(*status)) {
  49         return 0;
  50     }
  51     if (keyword == NULL ? capacity != 0 : capacity < 0) {
  52         *status = U_ILLEGAL_ARGUMENT_ERROR;
  53         return 0;
  54     }
  55     UnicodeString result = ((PluralRules*)uplrules)->select(number);
  56     return result.extract(keyword, capacity, *status);
  57 }
  58
  59 U_CAPI int32_t U_EXPORT2
  60 uplrules_selectWithFormat(const UPluralRules *uplrules,
  61                           double number,
  62                           const UNumberFormat *fmt,
  63                           UChar *keyword, int32_t capacity,
  64                           UErrorCode *status)
  65 {
  66     if (U_FAILURE(*status)) {
  67         return 0;
  68     }
  69     const PluralRules* plrules = reinterpret_cast<const PluralRules*>(uplrules);
  70     const NumberFormat* nf = reinterpret_cast<const NumberFormat*>(fmt);
  71     if (plrules == NULL || nf == NULL || ((keyword == NULL)? capacity != 0 : capacity < 0)) {
  72         *status = U_ILLEGAL_ARGUMENT_ERROR;
  73         return 0;
  74     }
  75     Formattable obj(number);
  76     UnicodeString result = plrules->select(obj, *nf, *status);
  77     return result.extract(keyword, capacity, *status);
  78 }
  79
  80 U_CAPI UEnumeration* U_EXPORT2
  81 uplrules_getKeywords(const UPluralRules *uplrules,
  82                      UErrorCode *status)
  83 {
  84     if (U_FAILURE(*status)) {
  85         return NULL;
  86     }
  87     const PluralRules* plrules = reinterpret_cast<const PluralRules*>(uplrules);
  88     if (plrules == NULL) {
  89         *status = U_ILLEGAL_ARGUMENT_ERROR;
  90         return NULL;
  91     }
  92     StringEnumeration *senum = plrules->getKeywords(*status);
  93     if (U_FAILURE(*status)) {
  94         return NULL;
  95     }
  96     if (senum == NULL) {
  97         *status = U_MEMORY_ALLOCATION_ERROR;
  98         return NULL;
  99     }
 100     return uenum_openFromStringEnumeration(senum, status);
 101 }
 102
 103 #endif /* #if !UCONFIG_NO_FORMATTING */