ICU 76.1 76.1

messageformat2_formattable.h
1 // © 2024 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 #ifndef MESSAGEFORMAT2_FORMATTABLE_H
7 #define MESSAGEFORMAT2_FORMATTABLE_H
8
9 #if U_SHOW_CPLUSPLUS_API
10
11 #if !UCONFIG_NO_FORMATTING
12
13 #if !UCONFIG_NO_MF2
14
15 #include "unicode/chariter.h"
16 #include "unicode/numberformatter.h"
17 #include "unicode/messageformat2_data_model_names.h"
18
19 #ifndef U_HIDE_DEPRECATED_API
20
21 #include <map>
22 #include <variant>
23
24 U_NAMESPACE_BEGIN
25
26 class Hashtable;
27 class UVector;
28
29 namespace message2 {
30
31 class Formatter;
32 class MessageContext;
33 class Selector;
34
35 // Formattable
36 // ----------
37
46 class U_I18N_API FormattableObject : public UObject {
47 public:
57 virtual const UnicodeString& tag() const = 0;
64 virtual ~FormattableObject();
65 }; // class FormattableObject
66
67 class Formattable;
68 } // namespace message2
69
70 U_NAMESPACE_END
71
73 // Export an explicit template instantiation of the std::variant that is used
74 // to represent the message2::Formattable class.
75 // (When building DLLs for Windows this is required.)
76 // (See measunit_impl.h, datefmt.h, collationiterator.h, erarules.h and others
77 // for similar examples.)
78 #if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN
79 #if defined(U_REAL_MSVC) && defined(_MSVC_STL_VERSION)
80 template class U_I18N_API std::_Variant_storage_<false,
81 double,
82 int64_t,
83 icu::UnicodeString,
84 icu::Formattable,
85 const icu::message2::FormattableObject *,
86 std::pair<const icu::message2::Formattable *,int32_t>>;
87 #endif
88 typedef std::pair<const icu::message2::Formattable*, int32_t> P;
89 template class U_I18N_API std::variant<double,
90 int64_t,
91 icu::UnicodeString,
92 icu::Formattable,
93 const icu::message2::FormattableObject*,
94 P>;
95 #endif
97
98 U_NAMESPACE_BEGIN
99
100 namespace message2 {
116 class U_I18N_API Formattable : public UObject {
117 public:
118
125 UFormattableType getType() const;
126
136 double getDouble(UErrorCode& status) const {
137 if (U_SUCCESS(status)) {
138 if (isDecimal() && getType() == UFMT_DOUBLE) {
139 return (std::get_if<icu::Formattable>(&contents))->getDouble();
140 }
141 if (std::holds_alternative<double>(contents)) {
142 return *(std::get_if<double>(&contents));
143 }
144 status = U_ILLEGAL_ARGUMENT_ERROR;
145 }
146 return 0;
147 }
148
158 int32_t getLong(UErrorCode& status) const {
159 if (U_SUCCESS(status)) {
160 if (isDecimal() && getType() == UFMT_LONG) {
161 return std::get_if<icu::Formattable>(&contents)->getLong();
162 }
163 if (std::holds_alternative<int64_t>(contents)) {
164 return static_cast<int32_t>(*(std::get_if<int64_t>(&contents)));
165 }
166 status = U_ILLEGAL_ARGUMENT_ERROR;
167 }
168 return 0;
169 }
170
181 int64_t getInt64Value(UErrorCode& status) const {
182 if (U_SUCCESS(status)) {
183 if (isDecimal() && getType() == UFMT_INT64) {
184 return std::get_if<icu::Formattable>(&contents)->getInt64();
185 }
186 if (std::holds_alternative<int64_t>(contents)) {
187 return *(std::get_if<int64_t>(&contents));
188 }
189 status = U_ILLEGAL_ARGUMENT_ERROR;
190 }
191 return 0;
192 }
193
208 int64_t getInt64(UErrorCode& status) const;
218 const UnicodeString& getString(UErrorCode& status) const {
219 if (U_SUCCESS(status)) {
220 if (std::holds_alternative<UnicodeString>(contents)) {
221 return *std::get_if<UnicodeString>(&contents);
222 }
223 status = U_ILLEGAL_ARGUMENT_ERROR;
224 }
225 return bogusString;
226 }
227
237 UDate getDate(UErrorCode& status) const {
238 if (U_SUCCESS(status)) {
239 if (isDate()) {
240 return *std::get_if<double>(&contents);
241 }
242 status = U_ILLEGAL_ARGUMENT_ERROR;
243 }
244 return 0;
245 }
246
254 UBool isNumeric() const { return (getType() == UFMT_DOUBLE || getType() == UFMT_LONG || getType() == UFMT_INT64); }
255
266 const Formattable* getArray(int32_t& count, UErrorCode& status) const;
267
278 const FormattableObject* getObject(UErrorCode& status) const {
279 if (U_SUCCESS(status)) {
280 // Can't return a reference since FormattableObject
281 // is an abstract class
282 if (getType() == UFMT_OBJECT) {
283 return *std::get_if<const FormattableObject*>(&contents);
284 // TODO: should assert that if type is object, object is non-null
285 }
286 status = U_ILLEGAL_ARGUMENT_ERROR;
287 }
288 return nullptr;
289 }
298 friend inline void swap(Formattable& f1, Formattable& f2) noexcept {
299 using std::swap;
300
301 swap(f1.contents, f2.contents);
302 swap(f1.holdsDate, f2.holdsDate);
303 }
310 Formattable(const Formattable&);
317 Formattable& operator=(Formattable) noexcept;
325 Formattable() : contents(0.0) {}
334 Formattable(const UnicodeString& s) : contents(s) {}
343 Formattable(double d) : contents(d) {}
352 Formattable(int64_t i) : contents(i) {}
360 static Formattable forDate(UDate d) {
361 Formattable f;
362 f.contents = d;
363 f.holdsDate = true;
364 return f;
365 }
380 static Formattable forDecimal(std::string_view number, UErrorCode& status);
390 Formattable(const Formattable* arr, int32_t len) : contents(std::pair(arr, len)) {}
399 Formattable(const FormattableObject* obj) : contents(obj) {}
406 virtual ~Formattable();
418 icu::Formattable asICUFormattable(UErrorCode& status) const;
419 private:
420
421 std::variant<double,
422 int64_t,
423 UnicodeString,
424 icu::Formattable, // represents a Decimal
425 const FormattableObject*,
426 std::pair<const Formattable*, int32_t>> contents;
427 bool holdsDate = false; // otherwise, we get type errors about UDate being a duplicate type
428 UnicodeString bogusString; // :((((
429
430 UBool isDecimal() const {
431 return std::holds_alternative<icu::Formattable>(contents);
432 }
433 UBool isDate() const {
434 return std::holds_alternative<double>(contents) && holdsDate;
435 }
436 }; // class Formattable
437
451 #ifndef U_IN_DOXYGEN
452 class U_I18N_API ResolvedFunctionOption : public UObject {
453 private:
454
455 /* const */ UnicodeString name;
456 /* const */ Formattable value;
457
458 public:
459 const UnicodeString& getName() const { return name; }
460 const Formattable& getValue() const { return value; }
461 ResolvedFunctionOption(const UnicodeString& n, const Formattable& f) : name(n), value(f) {}
462 ResolvedFunctionOption() {}
463 ResolvedFunctionOption(ResolvedFunctionOption&&);
464 ResolvedFunctionOption& operator=(ResolvedFunctionOption&& other) noexcept {
465 name = std::move(other.name);
466 value = std::move(other.value);
467 return *this;
468 }
469 virtual ~ResolvedFunctionOption();
470 }; // class ResolvedFunctionOption
471 #endif
472
480 using FunctionOptionsMap = std::map<UnicodeString, message2::Formattable>;
481
488 class U_I18N_API FunctionOptions : public UObject {
489 public:
503 FunctionOptionsMap getOptions() const {
504 int32_t len;
505 const ResolvedFunctionOption* resolvedOptions = getResolvedFunctionOptions(len);
506 FunctionOptionsMap result;
507 for (int32_t i = 0; i < len; i++) {
508 const ResolvedFunctionOption& opt = resolvedOptions[i];
509 result[opt.getName()] = opt.getValue();
510 }
511 return result;
512 }
520 FunctionOptions() { options = nullptr; }
527 virtual ~FunctionOptions();
535 FunctionOptions& operator=(FunctionOptions&&) noexcept;
543 FunctionOptions(FunctionOptions&&);
550 FunctionOptions& operator=(const FunctionOptions&) = delete;
551 private:
552 friend class MessageFormatter;
553 friend class StandardFunctions;
554
555 explicit FunctionOptions(UVector&&, UErrorCode&);
556
557 const ResolvedFunctionOption* getResolvedFunctionOptions(int32_t& len) const;
558 UBool getFunctionOption(const UnicodeString&, Formattable&) const;
559 // Returns empty string if option doesn't exist
560 UnicodeString getStringFunctionOption(const UnicodeString&) const;
561 int32_t optionsCount() const { return functionOptionsLen; }
562
563 // Named options passed to functions
564 // This is not a Hashtable in order to make it possible for code in a public header file
565 // to construct a std::map from it, on-the-fly. Otherwise, it would be impossible to put
566 // that code in the header because it would have to call internal Hashtable methods.
567 ResolvedFunctionOption* options;
568 int32_t functionOptionsLen = 0;
569 }; // class FunctionOptions
570
571
572 // TODO doc comments
573 // Encapsulates either a formatted string or formatted number;
574 // more output types could be added in the future.
575
586 class U_I18N_API FormattedValue : public UObject {
587 public:
593 explicit FormattedValue(const UnicodeString&);
599 explicit FormattedValue(number::FormattedNumber&&);
606 FormattedValue() : type(kString) {}
615 bool isString() const { return type == kString; }
624 bool isNumber() const { return type == kNumber; }
632 const UnicodeString& getString() const { return stringOutput; }
640 const number::FormattedNumber& getNumber() const { return numberOutput; }
648 FormattedValue& operator=(FormattedValue&&) noexcept;
656 FormattedValue(FormattedValue&& other) { *this = std::move(other); }
663 virtual ~FormattedValue();
664 private:
665 enum Type {
666 kString,
667 kNumber
668 };
669 Type type;
670 UnicodeString stringOutput;
671 number::FormattedNumber numberOutput;
672 }; // class FormattedValue
673
686 class U_I18N_API FormattedPlaceholder : public UObject {
687 public:
698 explicit FormattedPlaceholder(const UnicodeString& s) : fallback(s), type(kFallback) {}
710 FormattedPlaceholder(const FormattedPlaceholder& input, FormattedValue&& output)
711 : fallback(input.fallback), source(input.source),
712 formatted(std::move(output)), previousOptions(FunctionOptions()), type(kEvaluated) {}
725 FormattedPlaceholder(const FormattedPlaceholder& input, FunctionOptions&& opts, FormattedValue&& output)
726 : fallback(input.fallback), source(input.source),
727 formatted(std::move(output)), previousOptions(std::move(opts)), type(kEvaluated) {}
737 FormattedPlaceholder(const Formattable& input, const UnicodeString& fb)
738 : fallback(fb), source(input), type(kUnevaluated) {}
746 FormattedPlaceholder() : type(kNull) {}
756 const message2::Formattable& asFormattable() const;
766 bool isFallback() const { return type == kFallback; }
776 bool isNullOperand() const { return type == kNull; }
786 bool isEvaluated() const { return (type == kEvaluated); }
795 bool canFormat() const { return !(isFallback() || isNullOperand()); }
803 const UnicodeString& getFallback() const { return fallback; }
812 const FunctionOptions& options() const { return previousOptions; }
813
820 const FormattedValue& output() const { return formatted; }
828 FormattedPlaceholder& operator=(FormattedPlaceholder&&) noexcept;
836 FormattedPlaceholder(FormattedPlaceholder&& other) { *this = std::move(other); }
852 UnicodeString formatToString(const Locale& locale,
853 UErrorCode& status) const;
854
855 private:
856 friend class MessageFormatter;
857
858 enum Type {
859 kFallback, // Represents the result of formatting that encountered an error
860 kNull, // Represents the absence of both an output and an input (not necessarily an error)
861 kUnevaluated, // `source` should be valid, but there's no result yet
862 kEvaluated, // `formatted` exists
863 };
864 UnicodeString fallback;
865 Formattable source;
866 FormattedValue formatted;
867 FunctionOptions previousOptions; // Ignored unless type is kEvaluated
868 Type type;
869 }; // class FormattedPlaceholder
870
881 class U_I18N_API FormattedMessage : public icu::FormattedValue {
882 public:
889 FormattedMessage(UErrorCode& status) {
890 if (U_SUCCESS(status)) {
891 status = U_UNSUPPORTED_ERROR;
892 }
893 }
900 int32_t length(UErrorCode& status) const {
901 if (U_SUCCESS(status)) {
902 status = U_UNSUPPORTED_ERROR;
903 }
904 return -1;
905 }
912 char16_t charAt(int32_t index, UErrorCode& status) const {
913 (void) index;
914 if (U_SUCCESS(status)) {
915 status = U_UNSUPPORTED_ERROR;
916 }
917 return 0;
918 }
925 StringPiece subSequence(int32_t start, int32_t end, UErrorCode& status) const {
926 (void) start;
927 (void) end;
928 if (U_SUCCESS(status)) {
929 status = U_UNSUPPORTED_ERROR;
930 }
931 return "";
932 }
939 UnicodeString toString(UErrorCode& status) const override {
940 if (U_SUCCESS(status)) {
941 status = U_UNSUPPORTED_ERROR;
942 }
943 return {};
944 }
951 UnicodeString toTempString(UErrorCode& status) const override {
952 if (U_SUCCESS(status)) {
953 status = U_UNSUPPORTED_ERROR;
954 }
955 return {};
956 }
963 Appendable& appendTo(Appendable& appendable, UErrorCode& status) const override {
964 if (U_SUCCESS(status)) {
965 status = U_UNSUPPORTED_ERROR;
966 }
967 return appendable;
968 }
975 UBool nextPosition(ConstrainedFieldPosition& cfpos, UErrorCode& status) const override {
976 (void) cfpos;
977 if (U_SUCCESS(status)) {
978 status = U_UNSUPPORTED_ERROR;
979 }
980 return false;
981 }
988 CharacterIterator* toCharacterIterator(UErrorCode& status) {
989 if (U_SUCCESS(status)) {
990 status = U_UNSUPPORTED_ERROR;
991 }
992 return nullptr;
993 }
1000 virtual ~FormattedMessage();
1001 }; // class FormattedMessage
1002
1003 } // namespace message2
1004
1005 U_NAMESPACE_END
1006
1007 #endif // U_HIDE_DEPRECATED_API
1008
1009 #endif /* #if !UCONFIG_NO_MF2 */
1010
1011 #endif /* #if !UCONFIG_NO_FORMATTING */
1012
1013 #endif /* U_SHOW_CPLUSPLUS_API */
1014
1015 #endif // MESSAGEFORMAT2_FORMATTABLE_H
1016
1017 // eof
chariter.h
C++ API: Character Iterator.
icu::Appendable
Base class for objects to which Unicode characters and strings can be appended.
Definition: appendable.h:54
icu::CharacterIterator
Abstract class that defines an API for iteration on text objects.
Definition: chariter.h:361
icu::ConstrainedFieldPosition
Represents a span of a string containing a given field.
Definition: formattedvalue.h:41
icu::Formattable
Formattable objects can be passed to the Format class or its subclasses for formatting.
Definition: fmtable.h:63
icu::FormattedValue
An abstract formatted value: a string with associated field attributes.
Definition: formattedvalue.h:241
icu::Locale
A Locale object represents a specific geographical, political, or cultural region.
Definition: locid.h:195
icu::StringPiece
A string-like object that points to a sized piece of memory.
Definition: stringpiece.h:61
icu::UObject
UObject is the common ICU "boilerplate" class.
Definition: uobject.h:223
icu::UnicodeString
UnicodeString is a string class that stores Unicode characters directly and provides similar function...
Definition: unistr.h:296
icu::message2::FormattableObject
FormattableObject is an abstract class that can be implemented in order to define an arbitrary class ...
Definition: messageformat2_formattable.h:46
icu::message2::FormattableObject::~FormattableObject
virtual ~FormattableObject()
Destructor.
icu::message2::FormattableObject::tag
virtual const UnicodeString & tag() const =0
Returns an arbitrary string representing the type of this object.
icu::message2::Formattable
The Formattable class represents a typed value that can be formatted, originating either from a messa...
Definition: messageformat2_formattable.h:116
icu::message2::Formattable::Formattable
Formattable(const FormattableObject *obj)
Object constructor.
Definition: messageformat2_formattable.h:399
icu::message2::Formattable::Formattable
Formattable(const UnicodeString &s)
String constructor.
Definition: messageformat2_formattable.h:334
icu::message2::Formattable::getObject
const FormattableObject * getObject(UErrorCode &status) const
Returns a pointer to the FormattableObject contained within this formattable, or if this object does ...
Definition: messageformat2_formattable.h:278
icu::message2::Formattable::Formattable
Formattable(const Formattable *arr, int32_t len)
Array constructor.
Definition: messageformat2_formattable.h:390
icu::message2::Formattable::Formattable
Formattable(int64_t i)
Int64 constructor.
Definition: messageformat2_formattable.h:352
icu::message2::Formattable::Formattable
Formattable()
Default constructor.
Definition: messageformat2_formattable.h:325
icu::message2::Formattable::forDecimal
static Formattable forDecimal(std::string_view number, UErrorCode &status)
Creates a Formattable object of an appropriate numeric type from a a decimal number in string form.
icu::message2::Formattable::getDouble
double getDouble(UErrorCode &status) const
Gets the double value of this object.
Definition: messageformat2_formattable.h:136
icu::message2::Formattable::asICUFormattable
icu::Formattable asICUFormattable(UErrorCode &status) const
Converts the Formattable object to an ICU Formattable object.
icu::message2::Formattable::~Formattable
virtual ~Formattable()
Destructor.
icu::message2::Formattable::getString
const UnicodeString & getString(UErrorCode &status) const
Gets the string value of this object.
Definition: messageformat2_formattable.h:218
icu::message2::Formattable::getInt64
int64_t getInt64(UErrorCode &status) const
Gets the int64 value of this object.
icu::message2::Formattable::getLong
int32_t getLong(UErrorCode &status) const
Gets the long value of this object.
Definition: messageformat2_formattable.h:158
icu::message2::Formattable::getInt64Value
int64_t getInt64Value(UErrorCode &status) const
Gets the int64 value of this object.
Definition: messageformat2_formattable.h:181
icu::message2::Formattable::getArray
const Formattable * getArray(int32_t &count, UErrorCode &status) const
Gets the array value and count of this object.
icu::message2::Formattable::isNumeric
UBool isNumeric() const
Returns true if the data type of this Formattable object is kDouble.
Definition: messageformat2_formattable.h:254
icu::message2::Formattable::forDate
static Formattable forDate(UDate d)
Date factory method.
Definition: messageformat2_formattable.h:360
icu::message2::Formattable::Formattable
Formattable(double d)
Double constructor.
Definition: messageformat2_formattable.h:343
icu::message2::Formattable::swap
friend void swap(Formattable &f1, Formattable &f2) noexcept
Non-member swap function.
Definition: messageformat2_formattable.h:298
icu::message2::Formattable::Formattable
Formattable(const Formattable &)
Copy constructor.
icu::message2::Formattable::getType
UFormattableType getType() const
Gets the data type of this Formattable object.
icu::message2::Formattable::getDate
UDate getDate(UErrorCode &status) const
Gets the Date value of this object.
Definition: messageformat2_formattable.h:237
icu::message2::Formattable::operator=
Formattable & operator=(Formattable) noexcept
Assignment operator.
icu::message2::FormattedMessage
Not yet implemented: The result of a message formatting operation.
Definition: messageformat2_formattable.h:881
icu::message2::FormattedMessage::nextPosition
UBool nextPosition(ConstrainedFieldPosition &cfpos, UErrorCode &status) const override
Not yet implemented.
Definition: messageformat2_formattable.h:975
icu::message2::FormattedMessage::subSequence
StringPiece subSequence(int32_t start, int32_t end, UErrorCode &status) const
Not yet implemented.
Definition: messageformat2_formattable.h:925
icu::message2::FormattedMessage::length
int32_t length(UErrorCode &status) const
Not yet implemented.
Definition: messageformat2_formattable.h:900
icu::message2::FormattedMessage::toCharacterIterator
CharacterIterator * toCharacterIterator(UErrorCode &status)
Not yet implemented.
Definition: messageformat2_formattable.h:988
icu::message2::FormattedMessage::toTempString
UnicodeString toTempString(UErrorCode &status) const override
Not yet implemented.
Definition: messageformat2_formattable.h:951
icu::message2::FormattedMessage::FormattedMessage
FormattedMessage(UErrorCode &status)
Not yet implemented.
Definition: messageformat2_formattable.h:889
icu::message2::FormattedMessage::toString
UnicodeString toString(UErrorCode &status) const override
Not yet implemented.
Definition: messageformat2_formattable.h:939
icu::message2::FormattedMessage::appendTo
Appendable & appendTo(Appendable &appendable, UErrorCode &status) const override
Not yet implemented.
Definition: messageformat2_formattable.h:963
icu::message2::FormattedMessage::~FormattedMessage
virtual ~FormattedMessage()
Destructor.
icu::message2::FormattedMessage::charAt
char16_t charAt(int32_t index, UErrorCode &status) const
Not yet implemented.
Definition: messageformat2_formattable.h:912
icu::message2::FormattedPlaceholder
A FormattablePlaceholder encapsulates an input value (a message2::Formattable) together with an optio...
Definition: messageformat2_formattable.h:686
icu::message2::FormattedPlaceholder::getFallback
const UnicodeString & getFallback() const
Gets the fallback value of this placeholder, to be used in its place if an error occurs while formatt...
Definition: messageformat2_formattable.h:803
icu::message2::FormattedPlaceholder::FormattedPlaceholder
FormattedPlaceholder(const UnicodeString &s)
Fallback constructor.
Definition: messageformat2_formattable.h:698
icu::message2::FormattedPlaceholder::formatToString
UnicodeString formatToString(const Locale &locale, UErrorCode &status) const
Formats this as a string, using defaults.
icu::message2::FormattedPlaceholder::FormattedPlaceholder
FormattedPlaceholder()
Default constructor.
Definition: messageformat2_formattable.h:746
icu::message2::FormattedPlaceholder::isEvaluated
bool isEvaluated() const
Returns true iff this has formatting output.
Definition: messageformat2_formattable.h:786
icu::message2::FormattedPlaceholder::isNullOperand
bool isNullOperand() const
Returns true iff this is a null placeholder.
Definition: messageformat2_formattable.h:776
icu::message2::FormattedPlaceholder::FormattedPlaceholder
FormattedPlaceholder(const FormattedPlaceholder &input, FormattedValue &&output)
Constructor for fully formatted placeholders.
Definition: messageformat2_formattable.h:710
icu::message2::FormattedPlaceholder::operator=
FormattedPlaceholder & operator=(FormattedPlaceholder &&) noexcept
Move assignment operator: The source FormattedPlaceholder will be left in a valid but undefined state...
icu::message2::FormattedPlaceholder::isFallback
bool isFallback() const
Returns true iff this is a fallback placeholder.
Definition: messageformat2_formattable.h:766
icu::message2::FormattedPlaceholder::options
const FunctionOptions & options() const
Returns the options of this placeholder.
Definition: messageformat2_formattable.h:812
icu::message2::FormattedPlaceholder::FormattedPlaceholder
FormattedPlaceholder(const Formattable &input, const UnicodeString &fb)
Constructor for unformatted placeholders.
Definition: messageformat2_formattable.h:737
icu::message2::FormattedPlaceholder::canFormat
bool canFormat() const
Returns true iff this represents a valid argument to the formatter.
Definition: messageformat2_formattable.h:795
icu::message2::FormattedPlaceholder::FormattedPlaceholder
FormattedPlaceholder(const FormattedPlaceholder &input, FunctionOptions &&opts, FormattedValue &&output)
Constructor for fully formatted placeholders with options.
Definition: messageformat2_formattable.h:725
icu::message2::FormattedPlaceholder::output
const FormattedValue & output() const
Returns the formatted output of this placeholder.
Definition: messageformat2_formattable.h:820
icu::message2::FormattedPlaceholder::asFormattable
const message2::Formattable & asFormattable() const
Returns the source Formattable value for this placeholder.
icu::message2::FormattedValue
A FormattedValue represents the result of formatting a message2::Formattable.
Definition: messageformat2_formattable.h:586
icu::message2::FormattedValue::getString
const UnicodeString & getString() const
Gets the string contents of this value.
Definition: messageformat2_formattable.h:632
icu::message2::FormattedValue::FormattedValue
FormattedValue()
Default constructor.
Definition: messageformat2_formattable.h:606
icu::message2::FormattedValue::~FormattedValue
virtual ~FormattedValue()
Destructor.
icu::message2::FormattedValue::FormattedValue
FormattedValue(number::FormattedNumber &&)
Formatted number constructor.
icu::message2::FormattedValue::getNumber
const number::FormattedNumber & getNumber() const
Gets the number contents of this value.
Definition: messageformat2_formattable.h:640
icu::message2::FormattedValue::isNumber
bool isNumber() const
Returns true iff this is a formatted number.
Definition: messageformat2_formattable.h:624
icu::message2::FormattedValue::FormattedValue
FormattedValue(const UnicodeString &)
Formatted string constructor.
icu::message2::FormattedValue::operator=
FormattedValue & operator=(FormattedValue &&) noexcept
Move assignment operator: The source FormattedValue will be left in a valid but undefined state.
icu::message2::FormattedValue::isString
bool isString() const
Returns true iff this is a formatted string.
Definition: messageformat2_formattable.h:615
icu::message2::FunctionOptions
Structure encapsulating named options passed to a custom selector or formatter.
Definition: messageformat2_formattable.h:488
icu::message2::FunctionOptions::FunctionOptions
FunctionOptions()
Default constructor.
Definition: messageformat2_formattable.h:520
icu::message2::FunctionOptions::~FunctionOptions
virtual ~FunctionOptions()
Destructor.
icu::message2::FunctionOptions::operator=
FunctionOptions & operator=(FunctionOptions &&) noexcept
Move assignment operator: The source FunctionOptions will be left in a valid but undefined state.
icu::message2::FunctionOptions::getOptions
FunctionOptionsMap getOptions() const
Returns a map of all name-value pairs provided as options to this function.
Definition: messageformat2_formattable.h:503
icu::message2::MessageFormatter
Definition: messageformat2.h:51
icu::number::FormattedNumber
The result of a number formatting operation.
Definition: formattednumber.h:48
numberformatter.h
C++ API: All-in-one formatter for localized numbers, currencies, and units.
UFormattableType
UFormattableType
Enum designating the type of a UFormattable instance.
Definition: uformattable.h:48
UFMT_LONG
@ UFMT_LONG
ufmt_getLong() will return without conversion.
Definition: uformattable.h:51
UFMT_OBJECT
@ UFMT_OBJECT
ufmt_getObject() will return without conversion.
Definition: uformattable.h:55
UFMT_DOUBLE
@ UFMT_DOUBLE
ufmt_getDouble() will return without conversion.
Definition: uformattable.h:50
UFMT_INT64
@ UFMT_INT64
ufmt_getInt64() will return without conversion.
Definition: uformattable.h:54
UBool
int8_t UBool
The ICU boolean type, a signed-byte integer.
Definition: umachine.h:247
utypes.h
Basic definitions for ICU, for both C and C++ APIs.
UErrorCode
UErrorCode
Standard ICU4C error code type, a substitute for exceptions.
Definition: utypes.h:430
U_ILLEGAL_ARGUMENT_ERROR
@ U_ILLEGAL_ARGUMENT_ERROR
Start of codes indicating failure.
Definition: utypes.h:467
U_UNSUPPORTED_ERROR
@ U_UNSUPPORTED_ERROR
Requested operation not supported in current context.
Definition: utypes.h:482
U_SUCCESS
#define U_SUCCESS(x)
Does the error code indicate success?
Definition: utypes.h:742
U_I18N_API
#define U_I18N_API
Set to export library symbols from inside the i18n library, and to import them from outside.
Definition: utypes.h:316
UDate
double UDate
Date and Time data type.
Definition: utypes.h:218