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// Copyright (C) 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
******************************************************************************
* Copyright (C) 2014-2016, International Business Machines
* Corporation and others. All Rights Reserved.
******************************************************************************
* quantityformatter.cpp
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "unicode/simpleformatter.h"
#include "quantityformatter.h"
#include "uassert.h"
#include "unicode/unistr.h"
#include "unicode/decimfmt.h"
#include "cstring.h"
#include "unicode/plurrule.h"
#include "charstr.h"
#include "unicode/fmtable.h"
#include "unicode/fieldpos.h"
#include "standardplural.h"
#include "visibledigits.h"
#include "uassert.h"
U_NAMESPACE_BEGIN
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 SimpleFormatter(*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 SimpleFormatter(*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::addIfAbsent(
const char *variant,
const UnicodeString &rawPattern,
UErrorCode &status) {
int32_t pluralIndex = StandardPlural::indexFromString(variant, status);
if (U_FAILURE(status)) {
return FALSE;
}
if (formatters[pluralIndex] != NULL) {
return TRUE;
}
SimpleFormatter *newFmt = new SimpleFormatter(rawPattern, 0, 1, status);
if (newFmt == NULL) {
status = U_MEMORY_ALLOCATION_ERROR;
return FALSE;
}
if (U_FAILURE(status)) {
delete newFmt;
return FALSE;
}
formatters[pluralIndex] = newFmt;
return TRUE;
}
UBool QuantityFormatter::isValid() const {
return formatters[StandardPlural::OTHER] != NULL;
}
const SimpleFormatter *QuantityFormatter::getByVariant(
const char *variant) const {
U_ASSERT(isValid());
int32_t pluralIndex = StandardPlural::indexOrOtherIndexFromString(variant);
const SimpleFormatter *pattern = formatters[pluralIndex];
if (pattern == NULL) {
pattern = formatters[StandardPlural::OTHER];
}
return pattern;
}
UnicodeString &QuantityFormatter::format(
const Formattable &number,
const NumberFormat &fmt,
const PluralRules &rules,
UnicodeString &appendTo,
FieldPosition &pos,
UErrorCode &status) const {
UnicodeString formattedNumber;
StandardPlural::Form p = selectPlural(number, fmt, rules, formattedNumber, pos, status);
if (U_FAILURE(status)) {
return appendTo;
}
const SimpleFormatter *pattern = formatters[p];
if (pattern == NULL) {
pattern = formatters[StandardPlural::OTHER];
if (pattern == NULL) {
status = U_INVALID_STATE_ERROR;
return appendTo;
}
}
return format(*pattern, formattedNumber, appendTo, pos, status);
}
// The following methods live here so that class PluralRules does not depend on number formatting,
// and the SimpleFormatter does not depend on FieldPosition.
StandardPlural::Form QuantityFormatter::selectPlural(
const Formattable &number,
const NumberFormat &fmt,
const PluralRules &rules,
UnicodeString &formattedNumber,
FieldPosition &pos,
UErrorCode &status) {
if (U_FAILURE(status)) {
return StandardPlural::OTHER;
}
UnicodeString pluralKeyword;
VisibleDigitsWithExponent digits;
const DecimalFormat *decFmt = dynamic_cast<const DecimalFormat *>(&fmt);
if (decFmt != NULL) {
decFmt->initVisibleDigitsWithExponent(number, digits, status);
if (U_FAILURE(status)) {
return StandardPlural::OTHER;
}
pluralKeyword = rules.select(digits);
decFmt->format(digits, formattedNumber, pos, status);
} else {
if (number.getType() == Formattable::kDouble) {
pluralKeyword = rules.select(number.getDouble());
} else if (number.getType() == Formattable::kLong) {
pluralKeyword = rules.select(number.getLong());
} else if (number.getType() == Formattable::kInt64) {
pluralKeyword = rules.select((double) number.getInt64());
} else {
status = U_ILLEGAL_ARGUMENT_ERROR;
return StandardPlural::OTHER;
}
fmt.format(number, formattedNumber, pos, status);
}
return StandardPlural::orOtherFromString(pluralKeyword);
}
UnicodeString &QuantityFormatter::format(
const SimpleFormatter &pattern,
const UnicodeString &value,
UnicodeString &appendTo,
FieldPosition &pos,
UErrorCode &status) {
if (U_FAILURE(status)) {
return appendTo;
}
const UnicodeString *param = &value;
int32_t offset;
pattern.formatAndAppend(¶m, 1, appendTo, &offset, 1, status);
if (pos.getBeginIndex() != 0 || pos.getEndIndex() != 0) {
if (offset >= 0) {
pos.setBeginIndex(pos.getBeginIndex() + offset);
pos.setEndIndex(pos.getEndIndex() + offset);
} else {
pos.setBeginIndex(0);
pos.setEndIndex(0);
}
}
return appendTo;
}
U_NAMESPACE_END
#endif /* #if !UCONFIG_NO_FORMATTING */
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