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Unified Diff: source/i18n/quantityformatter.cpp

Issue 845603002: Update ICU to 54.1 step 1 (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/icu.git@master
Patch Set: remove unusued directories Created 5 years, 11 months ago
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Index: source/i18n/quantityformatter.cpp
diff --git a/source/i18n/quantityformatter.cpp b/source/i18n/quantityformatter.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..bef509a718691f08cbd628bb98ba4fb313f8fdbf
--- /dev/null
+++ b/source/i18n/quantityformatter.cpp
@@ -0,0 +1,185 @@
+/*
+******************************************************************************
+* Copyright (C) 2014, International Business Machines
+* Corporation and others. All Rights Reserved.
+******************************************************************************
+* quantityformatter.cpp
+*/
+#include "quantityformatter.h"
+#include "simplepatternformatter.h"
+#include "uassert.h"
+#include "unicode/unistr.h"
+#include "unicode/decimfmt.h"
+#include "cstring.h"
+#include "plurrule_impl.h"
+#include "unicode/plurrule.h"
+#include "charstr.h"
+#include "unicode/fmtable.h"
+#include "unicode/fieldpos.h"
+
+#if !UCONFIG_NO_FORMATTING
+
+U_NAMESPACE_BEGIN
+
+// other must always be first.
+static const char * const gPluralForms[] = {
+ "other", "zero", "one", "two", "few", "many"};
+
+static int32_t getPluralIndex(const char *pluralForm) {
+ int32_t len = UPRV_LENGTHOF(gPluralForms);
+ for (int32_t i = 0; i < len; ++i) {
+ if (uprv_strcmp(pluralForm, gPluralForms[i]) == 0) {
+ return i;
+ }
+ }
+ return -1;
+}
+
+QuantityFormatter::QuantityFormatter() {
+ for (int32_t i = 0; i < UPRV_LENGTHOF(formatters); ++i) {
+ formatters[i] = NULL;
+ }
+}
+
+QuantityFormatter::QuantityFormatter(const QuantityFormatter &other) {
+ for (int32_t i = 0; i < UPRV_LENGTHOF(formatters); ++i) {
+ if (other.formatters[i] == NULL) {
+ formatters[i] = NULL;
+ } else {
+ formatters[i] = new SimplePatternFormatter(*other.formatters[i]);
+ }
+ }
+}
+
+QuantityFormatter &QuantityFormatter::operator=(
+ const QuantityFormatter& other) {
+ if (this == &other) {
+ return *this;
+ }
+ for (int32_t i = 0; i < UPRV_LENGTHOF(formatters); ++i) {
+ delete formatters[i];
+ if (other.formatters[i] == NULL) {
+ formatters[i] = NULL;
+ } else {
+ formatters[i] = new SimplePatternFormatter(*other.formatters[i]);
+ }
+ }
+ return *this;
+}
+
+QuantityFormatter::~QuantityFormatter() {
+ for (int32_t i = 0; i < UPRV_LENGTHOF(formatters); ++i) {
+ delete formatters[i];
+ }
+}
+
+void QuantityFormatter::reset() {
+ for (int32_t i = 0; i < UPRV_LENGTHOF(formatters); ++i) {
+ delete formatters[i];
+ formatters[i] = NULL;
+ }
+}
+
+UBool QuantityFormatter::add(
+ const char *variant,
+ const UnicodeString &rawPattern,
+ UErrorCode &status) {
+ if (U_FAILURE(status)) {
+ return FALSE;
+ }
+ int32_t pluralIndex = getPluralIndex(variant);
+ if (pluralIndex == -1) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return FALSE;
+ }
+ SimplePatternFormatter *newFmt =
+ new SimplePatternFormatter(rawPattern);
+ if (newFmt == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return FALSE;
+ }
+ if (newFmt->getPlaceholderCount() > 1) {
+ delete newFmt;
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return FALSE;
+ }
+ delete formatters[pluralIndex];
+ formatters[pluralIndex] = newFmt;
+ return TRUE;
+}
+
+UBool QuantityFormatter::isValid() const {
+ return formatters[0] != NULL;
+}
+
+const SimplePatternFormatter *QuantityFormatter::getByVariant(
+ const char *variant) const {
+ int32_t pluralIndex = getPluralIndex(variant);
+ if (pluralIndex == -1) {
+ pluralIndex = 0;
+ }
+ const SimplePatternFormatter *pattern = formatters[pluralIndex];
+ if (pattern == NULL) {
+ pattern = formatters[0];
+ }
+ return pattern;
+}
+
+UnicodeString &QuantityFormatter::format(
+ const Formattable& quantity,
+ const NumberFormat &fmt,
+ const PluralRules &rules,
+ UnicodeString &appendTo,
+ FieldPosition &pos,
+ UErrorCode &status) const {
+ if (U_FAILURE(status)) {
+ return appendTo;
+ }
+ UnicodeString count;
+ const DecimalFormat *decFmt = dynamic_cast<const DecimalFormat *>(&fmt);
+ if (decFmt != NULL) {
+ FixedDecimal fd = decFmt->getFixedDecimal(quantity, status);
+ if (U_FAILURE(status)) {
+ return appendTo;
+ }
+ count = rules.select(fd);
+ } else {
+ if (quantity.getType() == Formattable::kDouble) {
+ count = rules.select(quantity.getDouble());
+ } else if (quantity.getType() == Formattable::kLong) {
+ count = rules.select(quantity.getLong());
+ } else if (quantity.getType() == Formattable::kInt64) {
+ count = rules.select((double) quantity.getInt64());
+ } else {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return appendTo;
+ }
+ }
+ CharString buffer;
+ buffer.appendInvariantChars(count, status);
+ if (U_FAILURE(status)) {
+ return appendTo;
+ }
+ const SimplePatternFormatter *pattern = getByVariant(buffer.data());
+ if (pattern == NULL) {
+ status = U_INVALID_STATE_ERROR;
+ return appendTo;
+ }
+ UnicodeString formattedNumber;
+ FieldPosition fpos(pos.getField());
+ fmt.format(quantity, formattedNumber, fpos, status);
+ const UnicodeString *params[1] = {&formattedNumber};
+ int32_t offsets[1];
+ pattern->format(params, UPRV_LENGTHOF(params), appendTo, offsets, UPRV_LENGTHOF(offsets), status);
+ if (offsets[0] != -1) {
+ if (fpos.getBeginIndex() != 0 || fpos.getEndIndex() != 0) {
+ pos.setBeginIndex(fpos.getBeginIndex() + offsets[0]);
+ pos.setEndIndex(fpos.getEndIndex() + offsets[0]);
+ }
+ }
+ return appendTo;
+}
+
+U_NAMESPACE_END
+
+#endif /* #if !UCONFIG_NO_FORMATTING */
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