summaryrefslogtreecommitdiff
path: root/deps/node/deps/icu-small/source/i18n/upluralrules.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'deps/node/deps/icu-small/source/i18n/upluralrules.cpp')
-rw-r--r--deps/node/deps/icu-small/source/i18n/upluralrules.cpp138
1 files changed, 138 insertions, 0 deletions
diff --git a/deps/node/deps/icu-small/source/i18n/upluralrules.cpp b/deps/node/deps/icu-small/source/i18n/upluralrules.cpp
new file mode 100644
index 00000000..bba6dfe3
--- /dev/null
+++ b/deps/node/deps/icu-small/source/i18n/upluralrules.cpp
@@ -0,0 +1,138 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*****************************************************************************************
+* Copyright (C) 2010-2012, International Business Machines
+* Corporation and others. All Rights Reserved.
+*****************************************************************************************
+*/
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_FORMATTING
+
+#include "unicode/upluralrules.h"
+#include "unicode/plurrule.h"
+#include "unicode/locid.h"
+#include "unicode/unistr.h"
+#include "unicode/unum.h"
+#include "unicode/numfmt.h"
+#include "number_decimalquantity.h"
+
+U_NAMESPACE_USE
+
+namespace {
+
+/**
+ * Given a number and a format, returns the keyword of the first applicable
+ * rule for the PluralRules object.
+ * @param rules The plural rules.
+ * @param obj The numeric object for which the rule should be determined.
+ * @param fmt The NumberFormat specifying how the number will be formatted
+ * (this can affect the plural form, e.g. "1 dollar" vs "1.0 dollars").
+ * @param status Input/output parameter. If at entry this indicates a
+ * failure status, the method returns immediately; otherwise
+ * this is set to indicate the outcome of the call.
+ * @return The keyword of the selected rule. Undefined in the case of an error.
+ */
+UnicodeString select(const PluralRules &rules, const Formattable& obj, const NumberFormat& fmt, UErrorCode& status) {
+ if (U_SUCCESS(status)) {
+ const DecimalFormat *decFmt = dynamic_cast<const DecimalFormat *>(&fmt);
+ if (decFmt != NULL) {
+ number::impl::DecimalQuantity dq;
+ decFmt->formatToDecimalQuantity(obj, dq, status);
+ if (U_SUCCESS(status)) {
+ return rules.select(dq);
+ }
+ } else {
+ double number = obj.getDouble(status);
+ if (U_SUCCESS(status)) {
+ return rules.select(number);
+ }
+ }
+ }
+ return UnicodeString();
+}
+
+} // namespace
+
+U_CAPI UPluralRules* U_EXPORT2
+uplrules_open(const char *locale, UErrorCode *status)
+{
+ return uplrules_openForType(locale, UPLURAL_TYPE_CARDINAL, status);
+}
+
+U_CAPI UPluralRules* U_EXPORT2
+uplrules_openForType(const char *locale, UPluralType type, UErrorCode *status)
+{
+ return (UPluralRules*)PluralRules::forLocale(Locale(locale), type, *status);
+}
+
+U_CAPI void U_EXPORT2
+uplrules_close(UPluralRules *uplrules)
+{
+ delete (PluralRules*)uplrules;
+}
+
+U_CAPI int32_t U_EXPORT2
+uplrules_select(const UPluralRules *uplrules,
+ double number,
+ UChar *keyword, int32_t capacity,
+ UErrorCode *status)
+{
+ if (U_FAILURE(*status)) {
+ return 0;
+ }
+ if (keyword == NULL ? capacity != 0 : capacity < 0) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return 0;
+ }
+ UnicodeString result = ((PluralRules*)uplrules)->select(number);
+ return result.extract(keyword, capacity, *status);
+}
+
+U_CAPI int32_t U_EXPORT2
+uplrules_selectWithFormat(const UPluralRules *uplrules,
+ double number,
+ const UNumberFormat *fmt,
+ UChar *keyword, int32_t capacity,
+ UErrorCode *status)
+{
+ if (U_FAILURE(*status)) {
+ return 0;
+ }
+ const PluralRules* plrules = reinterpret_cast<const PluralRules*>(uplrules);
+ const NumberFormat* nf = reinterpret_cast<const NumberFormat*>(fmt);
+ if (plrules == NULL || nf == NULL || ((keyword == NULL)? capacity != 0 : capacity < 0)) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return 0;
+ }
+ Formattable obj(number);
+ UnicodeString result = select(*plrules, obj, *nf, *status);
+ return result.extract(keyword, capacity, *status);
+}
+
+U_CAPI UEnumeration* U_EXPORT2
+uplrules_getKeywords(const UPluralRules *uplrules,
+ UErrorCode *status)
+{
+ if (U_FAILURE(*status)) {
+ return NULL;
+ }
+ const PluralRules* plrules = reinterpret_cast<const PluralRules*>(uplrules);
+ if (plrules == NULL) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return NULL;
+ }
+ StringEnumeration *senum = plrules->getKeywords(*status);
+ if (U_FAILURE(*status)) {
+ return NULL;
+ }
+ if (senum == NULL) {
+ *status = U_MEMORY_ALLOCATION_ERROR;
+ return NULL;
+ }
+ return uenum_openFromStringEnumeration(senum, status);
+}
+
+#endif /* #if !UCONFIG_NO_FORMATTING */