1 // © 2020 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3
4 #include "unicode/utypes.h"
5
6 #if !UCONFIG_NO_FORMATTING
7
8 #include "number_usageprefs.h"
9 #include "cstring.h"
10 #include "number_decimalquantity.h"
11 #include "number_microprops.h"
12 #include "number_roundingutils.h"
13 #include "number_skeletons.h"
14 #include "unicode/char16ptr.h"
15 #include "unicode/currunit.h"
16 #include "unicode/fmtable.h"
17 #include "unicode/measure.h"
18 #include "unicode/numberformatter.h"
19 #include "unicode/platform.h"
20 #include "unicode/unum.h"
21 #include "unicode/urename.h"
22 #include "units_data.h"
23
24 using namespace icu;
25 using namespace icu::number;
26 using namespace icu::number::impl;
27 using icu::StringSegment;
28 using icu::units::ConversionRates;
29
30 // Copy constructor
StringProp(const StringProp & other)31 StringProp::StringProp(const StringProp &other) : StringProp() {
32 this->operator=(other);
33 }
34
35 // Copy assignment operator
operator =(const StringProp & other)36 StringProp &StringProp::operator=(const StringProp &other) {
37 if (this == &other) { return *this; } // self-assignment: no-op
38 fLength = 0;
39 fError = other.fError;
40 if (fValue != nullptr) {
41 uprv_free(fValue);
42 fValue = nullptr;
43 }
44 if (other.fValue == nullptr) {
45 return *this;
46 }
47 if (U_FAILURE(other.fError)) {
48 // We don't bother trying to allocating memory if we're in any case busy
49 // copying an errored StringProp.
50 return *this;
51 }
52 fValue = (char *)uprv_malloc(other.fLength + 1);
53 if (fValue == nullptr) {
54 fError = U_MEMORY_ALLOCATION_ERROR;
55 return *this;
56 }
57 fLength = other.fLength;
58 uprv_strncpy(fValue, other.fValue, fLength + 1);
59 return *this;
60 }
61
62 // Move constructor
StringProp(StringProp && src)63 StringProp::StringProp(StringProp &&src) U_NOEXCEPT : fValue(src.fValue),
64 fLength(src.fLength),
65 fError(src.fError) {
66 // Take ownership away from src if necessary
67 src.fValue = nullptr;
68 }
69
70 // Move assignment operator
operator =(StringProp && src)71 StringProp &StringProp::operator=(StringProp &&src) U_NOEXCEPT {
72 if (this == &src) {
73 return *this;
74 }
75 if (fValue != nullptr) {
76 uprv_free(fValue);
77 }
78 fValue = src.fValue;
79 fLength = src.fLength;
80 fError = src.fError;
81 // Take ownership away from src if necessary
82 src.fValue = nullptr;
83 return *this;
84 }
85
~StringProp()86 StringProp::~StringProp() {
87 if (fValue != nullptr) {
88 uprv_free(fValue);
89 fValue = nullptr;
90 }
91 }
92
set(StringPiece value)93 void StringProp::set(StringPiece value) {
94 if (fValue != nullptr) {
95 uprv_free(fValue);
96 fValue = nullptr;
97 }
98 fLength = value.length();
99 fValue = (char *)uprv_malloc(fLength + 1);
100 if (fValue == nullptr) {
101 fLength = 0;
102 fError = U_MEMORY_ALLOCATION_ERROR;
103 return;
104 }
105 uprv_strncpy(fValue, value.data(), fLength);
106 fValue[fLength] = 0;
107 }
108
109 // Populates micros.mixedMeasures and modifies quantity, based on the values in
110 // measures.
mixedMeasuresToMicros(const MaybeStackVector<Measure> & measures,DecimalQuantity * quantity,MicroProps * micros,UErrorCode status)111 void mixedMeasuresToMicros(const MaybeStackVector<Measure> &measures, DecimalQuantity *quantity,
112 MicroProps *micros, UErrorCode status) {
113 micros->mixedMeasuresCount = measures.length();
114
115 if (micros->mixedMeasures.getCapacity() < micros->mixedMeasuresCount) {
116 if (micros->mixedMeasures.resize(micros->mixedMeasuresCount) == nullptr) {
117 status = U_MEMORY_ALLOCATION_ERROR;
118 return;
119 }
120 }
121
122 for (int32_t i = 0; i < micros->mixedMeasuresCount; i++) {
123 switch (measures[i]->getNumber().getType()) {
124 case Formattable::kInt64:
125 micros->mixedMeasures[i] = measures[i]->getNumber().getInt64();
126 break;
127
128 case Formattable::kDouble:
129 U_ASSERT(micros->indexOfQuantity < 0);
130 quantity->setToDouble(measures[i]->getNumber().getDouble());
131 micros->indexOfQuantity = i;
132 break;
133
134 default:
135 U_ASSERT(0 == "Found a Measure Number which is neither a double nor an int");
136 UPRV_UNREACHABLE;
137 break;
138 }
139
140 if (U_FAILURE(status)) {
141 return;
142 }
143 }
144
145 if (micros->indexOfQuantity < 0) {
146 // There is no quantity.
147 status = U_INTERNAL_PROGRAM_ERROR;
148 }
149 }
150
UsagePrefsHandler(const Locale & locale,const MeasureUnit & inputUnit,const StringPiece usage,const MicroPropsGenerator * parent,UErrorCode & status)151 UsagePrefsHandler::UsagePrefsHandler(const Locale &locale,
152 const MeasureUnit &inputUnit,
153 const StringPiece usage,
154 const MicroPropsGenerator *parent,
155 UErrorCode &status)
156 : fUnitsRouter(inputUnit, StringPiece(locale.getCountry()), usage, status),
157 fParent(parent) {
158 }
159
processQuantity(DecimalQuantity & quantity,MicroProps & micros,UErrorCode & status) const160 void UsagePrefsHandler::processQuantity(DecimalQuantity &quantity, MicroProps µs,
161 UErrorCode &status) const {
162 fParent->processQuantity(quantity, micros, status);
163 if (U_FAILURE(status)) {
164 return;
165 }
166
167 quantity.roundToInfinity(); // Enables toDouble
168 const units::RouteResult routed = fUnitsRouter.route(quantity.toDouble(), µs.rounder, status);
169 if (U_FAILURE(status)) {
170 return;
171 }
172 const MaybeStackVector<Measure>& routedMeasures = routed.measures;
173 micros.outputUnit = routed.outputUnit.copy(status).build(status);
174 if (U_FAILURE(status)) {
175 return;
176 }
177
178 mixedMeasuresToMicros(routedMeasures, &quantity, µs, status);
179 }
180
UnitConversionHandler(const MeasureUnit & targetUnit,const MicroPropsGenerator * parent,UErrorCode & status)181 UnitConversionHandler::UnitConversionHandler(const MeasureUnit &targetUnit,
182 const MicroPropsGenerator *parent, UErrorCode &status)
183 : fOutputUnit(targetUnit), fParent(parent) {
184 MeasureUnitImpl tempInput, tempOutput;
185
186 ConversionRates conversionRates(status);
187 if (U_FAILURE(status)) {
188 return;
189 }
190
191 const MeasureUnitImpl &targetUnitImpl =
192 MeasureUnitImpl::forMeasureUnit(targetUnit, tempOutput, status);
193 fUnitConverter.adoptInsteadAndCheckErrorCode(
194 new ComplexUnitsConverter(targetUnitImpl, conversionRates, status), status);
195 }
196
processQuantity(DecimalQuantity & quantity,MicroProps & micros,UErrorCode & status) const197 void UnitConversionHandler::processQuantity(DecimalQuantity &quantity, MicroProps µs,
198 UErrorCode &status) const {
199 fParent->processQuantity(quantity, micros, status);
200 if (U_FAILURE(status)) {
201 return;
202 }
203 quantity.roundToInfinity(); // Enables toDouble
204 MaybeStackVector<Measure> measures =
205 fUnitConverter->convert(quantity.toDouble(), µs.rounder, status);
206 micros.outputUnit = fOutputUnit;
207 if (U_FAILURE(status)) {
208 return;
209 }
210
211 mixedMeasuresToMicros(measures, &quantity, µs, status);
212 }
213
214 #endif /* #if !UCONFIG_NO_FORMATTING */
215