ICU 76.1: i18n/unicode/fmtable.h Source File

ICU 76.1 76.1

fmtable.h
Go to the documentation of this file.
1// © 2016 and later: Unicode, Inc. and others.
2// License & terms of use: http://www.unicode.org/copyright.html
3/*
4********************************************************************************
5* Copyright (C) 1997-2014, International Business Machines
6* Corporation and others. All Rights Reserved.
7********************************************************************************
8*
9* File FMTABLE.H
10*
11* Modification History:
12*
13* Date Name Description
14* 02/29/97 aliu Creation.
15********************************************************************************
16*/
17#ifndef FMTABLE_H
18#define FMTABLE_H
19
20#include "unicode/utypes.h"
21
22#if U_SHOW_CPLUSPLUS_API
23
29#if !UCONFIG_NO_FORMATTING
30
31#include "unicode/unistr.h"
32#include "unicode/stringpiece.h"
33#include "unicode/uformattable.h"
34
35U_NAMESPACE_BEGIN
36
37class CharString;
38
39namespace number::impl {
40class DecimalQuantity;
41}
42
63 class U_I18N_API Formattable : public UObject {
64public:
74 enum ISDATE { kIsDate };
75
80 Formattable(); // Type kLong, value 0
81
88 Formattable(UDate d, ISDATE flag);
89
95 Formattable(double d);
96
102 Formattable(int32_t l);
103
109 Formattable(int64_t ll);
110
111#if !UCONFIG_NO_CONVERSION
118 Formattable(const char* strToCopy);
119#endif
120
134 Formattable(StringPiece number, UErrorCode &status);
135
141 Formattable(const UnicodeString& strToCopy);
142
148 Formattable(UnicodeString* strToAdopt);
149
156 Formattable(const Formattable* arrayToCopy, int32_t count);
157
163 Formattable(UObject* objectToAdopt);
164
169 Formattable(const Formattable&);
170
176 Formattable& operator=(const Formattable &rhs);
177
184 bool operator==(const Formattable &other) const;
185
192 bool operator!=(const Formattable& other) const
193 { return !operator==(other); }
194
199 virtual ~Formattable();
200
212 Formattable *clone() const;
213
220 enum Type {
226 kDate,
227
233 kDouble,
234
240 kLong,
241
247 kString,
248
254 kArray,
255
261 kInt64,
262
268 kObject
269 };
270
276 Type getType() const;
277
284 UBool isNumeric() const;
285
292 double getDouble() const { return fValue.fDouble; }
293
306 double getDouble(UErrorCode& status) const;
307
314 int32_t getLong() const { return static_cast<int32_t>(fValue.fInt64); }
315
332 int32_t getLong(UErrorCode& status) const;
333
340 int64_t getInt64() const { return fValue.fInt64; }
341
357 int64_t getInt64(UErrorCode& status) const;
358
365 UDate getDate() const { return fValue.fDate; }
366
375 UDate getDate(UErrorCode& status) const;
376
384 UnicodeString& getString(UnicodeString& result) const
385 { result=*fValue.fString; return result; }
386
396 UnicodeString& getString(UnicodeString& result, UErrorCode& status) const;
397
405 inline const UnicodeString& getString() const;
406
415 const UnicodeString& getString(UErrorCode& status) const;
416
423 inline UnicodeString& getString();
424
433 UnicodeString& getString(UErrorCode& status);
434
442 const Formattable* getArray(int32_t& count) const
443 { count=fValue.fArrayAndCount.fCount; return fValue.fArrayAndCount.fArray; }
444
454 const Formattable* getArray(int32_t& count, UErrorCode& status) const;
455
464 Formattable& operator[](int32_t index) { return fValue.fArrayAndCount.fArray[index]; }
465
472 const UObject* getObject() const;
473
492 StringPiece getDecimalNumber(UErrorCode &status);
493
500 void setDouble(double d);
501
508 void setLong(int32_t l);
509
516 void setInt64(int64_t ll);
517
524 void setDate(UDate d);
525
532 void setString(const UnicodeString& stringToCopy);
533
541 void setArray(const Formattable* array, int32_t count);
542
549 void adoptString(UnicodeString* stringToAdopt);
550
556 void adoptArray(Formattable* array, int32_t count);
557
565 void adoptObject(UObject* objectToAdopt);
566
581 void setDecimalNumber(StringPiece numberString,
582 UErrorCode &status);
583
589 virtual UClassID getDynamicClassID() const override;
590
596 static UClassID U_EXPORT2 getStaticClassID();
597
605 static inline Formattable *fromUFormattable(UFormattable *fmt);
606
614 static inline const Formattable *fromUFormattable(const UFormattable *fmt);
615
622 inline UFormattable *toUFormattable();
623
630 inline const UFormattable *toUFormattable() const;
631
632#ifndef U_HIDE_DEPRECATED_API
639 inline int32_t getLong(UErrorCode* status) const;
640#endif /* U_HIDE_DEPRECATED_API */
641
642#ifndef U_HIDE_INTERNAL_API
651 number::impl::DecimalQuantity *getDecimalQuantity() const { return fDecimalQuantity;}
652
657 void populateDecimalQuantity(number::impl::DecimalQuantity& output, UErrorCode& status) const;
658
665 void adoptDecimalQuantity(number::impl::DecimalQuantity *dq);
666
673 CharString *internalGetCharString(UErrorCode &status);
674
675#endif /* U_HIDE_INTERNAL_API */
676
677private:
682 void dispose();
683
687 void init();
688
689 UnicodeString* getBogus() const;
690
691 union {
692 UObject* fObject;
693 UnicodeString* fString;
694 double fDouble;
695 int64_t fInt64;
696 UDate fDate;
697 struct {
698 Formattable* fArray;
699 int32_t fCount;
700 } fArrayAndCount;
701 } fValue;
702
703 CharString *fDecimalStr;
704
705 number::impl::DecimalQuantity *fDecimalQuantity;
706
707 Type fType;
708 UnicodeString fBogus; // Bogus string when it's needed.
709};
710
711 inline UDate Formattable::getDate(UErrorCode& status) const {
712 if (fType != kDate) {
713 if (U_SUCCESS(status)) {
714 status = U_INVALID_FORMAT_ERROR;
715 }
716 return 0;
717 }
718 return fValue.fDate;
719}
720
721 inline const UnicodeString& Formattable::getString() const {
722 return *fValue.fString;
723}
724
725 inline UnicodeString& Formattable::getString() {
726 return *fValue.fString;
727}
728
729#ifndef U_HIDE_DEPRECATED_API
730 inline int32_t Formattable::getLong(UErrorCode* status) const {
731 return getLong(*status);
732}
733#endif /* U_HIDE_DEPRECATED_API */
734
735 inline UFormattable* Formattable::toUFormattable() {
736 return reinterpret_cast<UFormattable*>(this);
737}
738
739 inline const UFormattable* Formattable::toUFormattable() const {
740 return reinterpret_cast<const UFormattable*>(this);
741}
742
743 inline Formattable* Formattable::fromUFormattable(UFormattable *fmt) {
744 return reinterpret_cast<Formattable *>(fmt);
745}
746
747 inline const Formattable* Formattable::fromUFormattable(const UFormattable *fmt) {
748 return reinterpret_cast<const Formattable *>(fmt);
749}
750
751U_NAMESPACE_END
752
753#endif /* #if !UCONFIG_NO_FORMATTING */
754
755#endif /* U_SHOW_CPLUSPLUS_API */
756
757#endif //_FMTABLE
758//eof
icu::Formattable
Formattable objects can be passed to the Format class or its subclasses for formatting.
Definition fmtable.h:63
icu::Formattable::setDecimalNumber
void setDecimalNumber(StringPiece numberString, UErrorCode &status)
Sets the the numeric value from a decimal number string, and changes the type to to a numeric type ap...
icu::Formattable::Formattable
Formattable(StringPiece number, UErrorCode &status)
Creates a Formattable object of an appropriate numeric type from a a decimal number in string form.
icu::Formattable::Formattable
Formattable(UnicodeString *strToAdopt)
Creates a Formattable object with a UnicodeString object to adopt from.
icu::Formattable::getType
Type getType() const
Gets the data type of this Formattable object.
icu::Formattable::getStaticClassID
static UClassID getStaticClassID()
ICU "poor man's RTTI", returns a UClassID for this class.
icu::Formattable::setArray
void setArray(const Formattable *array, int32_t count)
Sets the array value and count of this object and changes the type to kArray.
icu::Formattable::setString
void setString(const UnicodeString &stringToCopy)
Sets the string value of this object and changes the type to kString.
icu::Formattable::isNumeric
UBool isNumeric() const
Returns true if the data type of this Formattable object is kDouble, kLong, or kInt64.
icu::Formattable::adoptString
void adoptString(UnicodeString *stringToAdopt)
Sets and adopts the string value and count of this object and changes the type to kArray.
icu::Formattable::Formattable
Formattable(UObject *objectToAdopt)
Creates a Formattable object that adopts the given UObject.
icu::Formattable::setInt64
void setInt64(int64_t ll)
Sets the int64 value of this object and changes the type to kInt64.
icu::Formattable::Formattable
Formattable(double d)
Creates a Formattable object with a double number.
icu::Formattable::Formattable
Formattable()
Default constructor.
icu::Formattable::setDouble
void setDouble(double d)
Sets the double value of this object and changes the type to kDouble.
icu::Formattable::getLong
int32_t getLong() const
Gets the long value of this object.
Definition fmtable.h:314
icu::Formattable::Formattable
Formattable(const UnicodeString &strToCopy)
Creates a Formattable object with a UnicodeString object to copy from.
icu::Formattable::adoptDecimalQuantity
void adoptDecimalQuantity(number::impl::DecimalQuantity *dq)
Adopt, and set value from, a DecimalQuantity Internal Function, do not use.
icu::Formattable::setLong
void setLong(int32_t l)
Sets the long value of this object and changes the type to kLong.
icu::Formattable::operator=
Formattable & operator=(const Formattable &rhs)
Assignment operator.
icu::Formattable::getObject
const UObject * getObject() const
Returns a pointer to the UObject contained within this formattable, or nullptr if this object does no...
icu::Formattable::Type
Type
Selector for flavor of data type contained within a Formattable object.
Definition fmtable.h:220
icu::Formattable::kDouble
@ kDouble
Selector indicating a double value.
Definition fmtable.h:233
icu::Formattable::kArray
@ kArray
Selector indicating an array of Formattables.
Definition fmtable.h:254
icu::Formattable::kLong
@ kLong
Selector indicating a 32-bit integer value.
Definition fmtable.h:240
icu::Formattable::kInt64
@ kInt64
Selector indicating a 64-bit integer value.
Definition fmtable.h:261
icu::Formattable::kString
@ kString
Selector indicating a UnicodeString value.
Definition fmtable.h:247
icu::Formattable::kDate
@ kDate
Selector indicating a UDate value.
Definition fmtable.h:226
icu::Formattable::setDate
void setDate(UDate d)
Sets the Date value of this object and changes the type to kDate.
icu::Formattable::getDouble
double getDouble(UErrorCode &status) const
Gets the double value of this object.
icu::Formattable::Formattable
Formattable(const char *strToCopy)
Creates a Formattable object with a char string pointer.
icu::Formattable::Formattable
Formattable(UDate d, ISDATE flag)
Creates a Formattable object with a UDate instance.
icu::Formattable::adoptArray
void adoptArray(Formattable *array, int32_t count)
Sets and adopts the array value and count of this object and changes the type to kArray.
icu::Formattable::adoptObject
void adoptObject(UObject *objectToAdopt)
Sets and adopts the UObject value of this object and changes the type to kObject.
icu::Formattable::getString
UnicodeString & getString(UnicodeString &result) const
Gets the string value of this object.
Definition fmtable.h:384
icu::Formattable::operator==
bool operator==(const Formattable &other) const
Equality comparison.
icu::Formattable::operator[]
Formattable & operator[](int32_t index)
Accesses the specified element in the array value of this Formattable object.
Definition fmtable.h:464
icu::Formattable::getDouble
double getDouble() const
Gets the double value of this object.
Definition fmtable.h:292
icu::Formattable::clone
Formattable * clone() const
Clone this object.
icu::Formattable::getDecimalQuantity
number::impl::DecimalQuantity * getDecimalQuantity() const
Internal function, do not use.
Definition fmtable.h:651
icu::Formattable::getString
UnicodeString & getString(UErrorCode &status)
Gets a reference to the string value of this object.
icu::Formattable::Formattable
Formattable(const Formattable *arrayToCopy, int32_t count)
Creates a Formattable object with an array of Formattable objects.
icu::Formattable::getInt64
int64_t getInt64() const
Gets the int64 value of this object.
Definition fmtable.h:340
icu::Formattable::Formattable
Formattable(const Formattable &)
Copy constructor.
icu::Formattable::Formattable
Formattable(int32_t l)
Creates a Formattable object with a long number.
icu::Formattable::getDecimalNumber
StringPiece getDecimalNumber(UErrorCode &status)
Returns a numeric string representation of the number contained within this formattable,...
icu::Formattable::getArray
const Formattable * getArray(int32_t &count, UErrorCode &status) const
Gets the array value and count of this object.
icu::Formattable::~Formattable
virtual ~Formattable()
Destructor.
icu::Formattable::ISDATE
ISDATE
This enum is only used to let callers distinguish between the Formattable(UDate) constructor and the ...
Definition fmtable.h:74
icu::Formattable::operator!=
bool operator!=(const Formattable &other) const
Equality operator.
Definition fmtable.h:192
icu::Formattable::internalGetCharString
CharString * internalGetCharString(UErrorCode &status)
Internal function to return the CharString pointer.
icu::Formattable::getArray
const Formattable * getArray(int32_t &count) const
Gets the array value and count of this object.
Definition fmtable.h:442
icu::Formattable::populateDecimalQuantity
void populateDecimalQuantity(number::impl::DecimalQuantity &output, UErrorCode &status) const
Export the value of this Formattable to a DecimalQuantity.
icu::Formattable::getDate
UDate getDate() const
Gets the Date value of this object.
Definition fmtable.h:365
icu::Formattable::getLong
int32_t getLong(UErrorCode &status) const
Gets the long value of this object.
icu::Formattable::Formattable
Formattable(int64_t ll)
Creates a Formattable object with an int64_t number.
icu::Formattable::getString
const UnicodeString & getString(UErrorCode &status) const
Gets a const reference to the string value of this object.
icu::Formattable::getInt64
int64_t getInt64(UErrorCode &status) const
Gets the int64 value of this object.
icu::Formattable::getString
UnicodeString & getString(UnicodeString &result, UErrorCode &status) const
Gets the string value of this object.
icu::Formattable::getDynamicClassID
virtual UClassID getDynamicClassID() const override
ICU "poor man's RTTI", returns a UClassID for the actual class.
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::operator==
U_EXPORT UBool operator==(const StringPiece &x, const StringPiece &y)
Global operator == for StringPiece.
stringpiece.h
C++ API: StringPiece: Read-only byte string wrapper class.
uformattable.h
C API: UFormattable is a thin wrapper for primitive types used for formatting and parsing.
UFormattable
void * UFormattable
Opaque type representing various types of data which may be used for formatting and parsing operation...
Definition uformattable.h:72
UBool
int8_t UBool
The ICU boolean type, a signed-byte integer.
Definition umachine.h:247
unistr.h
C++ API: Unicode String.
UClassID
void * UClassID
UClassID is used to identify classes without using the compiler's RTTI.
Definition uobject.h:96
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_INVALID_FORMAT_ERROR
@ U_INVALID_FORMAT_ERROR
Data format is not what is expected.
Definition utypes.h:469
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