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Public Types | Public Member Functions | Static Public Member Functions
icu::DecimalFormatSymbols Class Reference

This class represents the set of symbols needed by DecimalFormat to format numbers. More...

`#include <dcfmtsym.h>`

Inheritance diagram for icu::DecimalFormatSymbols:

## Public Types
enum | ENumberFormatSymbol { kDecimalSeparatorSymbol, kGroupingSeparatorSymbol, kPatternSeparatorSymbol, kPercentSymbol, kZeroDigitSymbol, kDigitSymbol, kMinusSignSymbol, kPlusSignSymbol, kCurrencySymbol, kIntlCurrencySymbol, kMonetarySeparatorSymbol, kExponentialSymbol, kPerMillSymbol, kPadEscapeSymbol, kInfinitySymbol, kNaNSymbol, kSignificantDigitSymbol, kMonetaryGroupingSeparatorSymbol, kOneDigitSymbol, kTwoDigitSymbol, kThreeDigitSymbol, kFourDigitSymbol, kFiveDigitSymbol, kSixDigitSymbol, kSevenDigitSymbol, kEightDigitSymbol, kNineDigitSymbol, kExponentMultiplicationSymbol, kFormatSymbolCount = kNineDigitSymbol + 2 }
| Constants for specifying a number format symbol. More...

## Public Member Functions
| DecimalFormatSymbols (const Locale &locale, UErrorCode &status)
| Create a DecimalFormatSymbols object for the given locale. More...
| DecimalFormatSymbols (const Locale &locale, const NumberingSystem &ns, UErrorCode &status)
| Creates a DecimalFormatSymbols instance for the given locale with digits and symbols corresponding to the given NumberingSystem. More...
| DecimalFormatSymbols (UErrorCode &status)
| Create a DecimalFormatSymbols object for the default locale. More...
| DecimalFormatSymbols (const DecimalFormatSymbols &)
| Copy constructor. More...
DecimalFormatSymbols & | operator= (const DecimalFormatSymbols &)
| Assignment operator. More...
virtual | ~DecimalFormatSymbols ()
| Destructor. More...
UBool | operator== (const DecimalFormatSymbols &other) const
| Return true if another object is semantically equal to this one. More...
UBool | operator!= (const DecimalFormatSymbols &other) const
| Return true if another object is semantically unequal to this one. More...
UnicodeString | getSymbol (ENumberFormatSymbol symbol) const
| Get one of the format symbols by its enum constant. More...
void | setSymbol (ENumberFormatSymbol symbol, const UnicodeString &value, const UBool propogateDigits)
| Set one of the format symbols by its enum constant. More...
Locale | getLocale () const
| Returns the locale for which this object was constructed. More...
Locale | getLocale (ULocDataLocaleType type, UErrorCode &status) const
| Returns the locale for this object. More...
const UnicodeString & | getPatternForCurrencySpacing (UCurrencySpacing type, UBool beforeCurrency, UErrorCode &status) const
| Get pattern string for 'CurrencySpacing' that can be applied to currency format. More...
void | setPatternForCurrencySpacing (UCurrencySpacing type, UBool beforeCurrency, const UnicodeString &pattern)
| Set pattern string for 'CurrencySpacing' that can be applied to currency format. More...
virtual UClassID | getDynamicClassID () const
| ICU "poor man's RTTI", returns a UClassID for the actual class. More...
UBool | isCustomCurrencySymbol () const
UBool | isCustomIntlCurrencySymbol () const
const UnicodeString & | getConstSymbol (ENumberFormatSymbol symbol) const
| Internal function - more efficient version of getSymbol, returning a const reference to one of the symbol strings. More...
const char16_t * | getCurrencyPattern (void) const
| Returns that pattern stored in currecy info. More...
Public Member Functions inherited from icu::UObject
virtual | ~UObject ()
| Destructor. More...

## Static Public Member Functions
static DecimalFormatSymbols * | createWithLastResortData (UErrorCode &status)
| Creates a DecimalFormatSymbols object with last-resort data. More...
static UClassID | getStaticClassID ()
| ICU "poor man's RTTI", returns a UClassID for this class. More...

## Detailed Description

This class represents the set of symbols needed by DecimalFormat to format numbers.

DecimalFormat creates for itself an instance of DecimalFormatSymbols from its locale data. If you need to change any of these symbols, you can get the DecimalFormatSymbols object from your DecimalFormat and modify it.

Here are the special characters used in the parts of the subpattern, with notes on their usage.

    Symbol   Meaning  0      a digit  #      a digit, zero shows as absent  .      placeholder for decimal separator  ,      placeholder for grouping separator.  ;      separates formats.  -      default negative prefix.  %      divide by 100 and show as percentage  X      any other characters can be used in the prefix or suffix  '      used to quote special characters in a prefix or suffix.

[Notes]

If there is no explicit negative subpattern, - is prefixed to the positive form. That is, "0.00" alone is equivalent to "0.00;-0.00".

The grouping separator is commonly used for thousands, but in some countries for ten-thousands. The interval is a constant number of digits between the grouping characters, such as 100,000,000 or 1,0000,0000. If you supply a pattern with multiple grouping characters, the interval between the last one and the end of the integer is the one that is used. So "#,##,###,####" == "######,####" == "##,####,####".

This class only handles localized digits where the 10 digits are contiguous in Unicode, from 0 to 9. Other digits sets (such as superscripts) would need a different subclass.

Definition at line 88 of file dcfmtsym.h.

## Member Enumeration Documentation

enum icu::DecimalFormatSymbols::ENumberFormatSymbol

Constants for specifying a number format symbol.

Stable:
  ICU 2.0

Enumerator
kDecimalSeparatorSymbol | The decimal separator.
kGroupingSeparatorSymbol | The grouping separator.
kPatternSeparatorSymbol | The pattern separator.
kPercentSymbol | The percent sign.
kZeroDigitSymbol | Zero.
kDigitSymbol | Character representing a digit in the pattern.
kMinusSignSymbol | The minus sign.
kPlusSignSymbol | The plus sign.
kCurrencySymbol | The currency symbol.
kIntlCurrencySymbol | The international currency symbol.
kMonetarySeparatorSymbol | The monetary separator.
kExponentialSymbol | The exponential symbol.
kPerMillSymbol | Per mill symbol - replaces kPermillSymbol.
kPadEscapeSymbol | Escape padding character.
kInfinitySymbol | Infinity symbol.
kNaNSymbol | Nan symbol.
kSignificantDigitSymbol | Significant digit symbol. Stable: ICU 3.0
kMonetaryGroupingSeparatorSymbol | The monetary grouping separator. Stable: ICU 3.6
kOneDigitSymbol | One. Stable: ICU 4.6
kTwoDigitSymbol | Two. Stable: ICU 4.6
kThreeDigitSymbol | Three. Stable: ICU 4.6
kFourDigitSymbol | Four. Stable: ICU 4.6
kFiveDigitSymbol | Five. Stable: ICU 4.6
kSixDigitSymbol | Six. Stable: ICU 4.6
kSevenDigitSymbol | Seven. Stable: ICU 4.6
kEightDigitSymbol | Eight. Stable: ICU 4.6
kNineDigitSymbol | Nine. Stable: ICU 4.6
kExponentMultiplicationSymbol | Multiplication sign. Stable: ICU 54
kFormatSymbolCount | count symbol constants

Definition at line 94 of file dcfmtsym.h.

## Constructor & Destructor Documentation

icu::DecimalFormatSymbols::DecimalFormatSymbols | ( | const Locale & | locale,
|  | UErrorCode & | status
| ) |  |

Create a DecimalFormatSymbols object for the given locale.

Parameters

  locale | The locale to get symbols for.
  status | Input/output parameter, set to success or failure code upon return.

Stable:
  ICU 2.0

icu::DecimalFormatSymbols::DecimalFormatSymbols | ( | const Locale & | locale,
|  | const NumberingSystem & | ns,
|  | UErrorCode & | status
| ) |  |

Creates a DecimalFormatSymbols instance for the given locale with digits and symbols corresponding to the given NumberingSystem.

This constructor behaves equivalently to the normal constructor called with a locale having a "numbers=xxxx" keyword specifying the numbering system by name.

In this constructor, the NumberingSystem argument will be used even if the locale has its own "numbers=xxxx" keyword.

Parameters

  locale | The locale to get symbols for.
  ns | The numbering system.
  status | Input/output parameter, set to success or failure code upon return.

Draft:
  This API may be changed in the future versions and was introduced in ICU 60

icu::DecimalFormatSymbols::DecimalFormatSymbols | ( | UErrorCode & | status | ) |

Create a DecimalFormatSymbols object for the default locale.

This constructor will not fail. If the resource file data is not available, it will use hard-coded last-resort data and set status to U_USING_FALLBACK_ERROR.

Parameters

  status | Input/output parameter, set to success or failure code upon return.

Stable:
  ICU 2.0

icu::DecimalFormatSymbols::DecimalFormatSymbols | ( | const DecimalFormatSymbols & |  | ) |

Copy constructor.

Stable:
  ICU 2.0

virtual icu::DecimalFormatSymbols::~DecimalFormatSymbols | ( |  | ) |
| virtual

Destructor.

Stable:
  ICU 2.0

## Member Function Documentation

static DecimalFormatSymbols* icu::DecimalFormatSymbols::createWithLastResortData | ( | UErrorCode & | status | ) |
| static

Creates a DecimalFormatSymbols object with last-resort data.

Intended for callers who cache the symbols data and set all symbols on the resulting object.

The last-resort symbols are similar to those for the root data, except that the grouping separators are empty, the NaN symbol is U+FFFD rather than "NaN", and the CurrencySpacing patterns are empty.

Parameters

  status | Input/output parameter, set to success or failure code upon return.

Returns
  last-resort symbols

Stable:
  ICU 52

const UnicodeString & icu::DecimalFormatSymbols::getConstSymbol | ( | ENumberFormatSymbol | symbol | ) | const
| inline

Internal function - more efficient version of getSymbol, returning a const reference to one of the symbol strings.

The returned reference becomes invalid when the symbol is changed or when the DecimalFormatSymbols are destroyed.

### TODO markus 2002oct11: Consider proposing getConstSymbol() to be really public.

Note: moved #ifndef U_HIDE_INTERNAL_API after this, since this is needed for inline in DecimalFormat

Parameters

  symbol | Constant to indicate a number format symbol.

Returns
  the format symbol by the param 'symbol'

Internal:
  Do not use. This API is for internal use only.

Definition at line 474 of file dcfmtsym.h.

const char16_t * icu::DecimalFormatSymbols::getCurrencyPattern | ( | void |  | ) | const
| inline

Returns that pattern stored in currecy info.

Internal API for use by NumberFormat API.

Internal:
  Do not use. This API is for internal use only.

Definition at line 520 of file dcfmtsym.h.

References U_NAMESPACE_END.

virtual UClassID icu::DecimalFormatSymbols::getDynamicClassID | ( |  | ) | const
| virtual

ICU "poor man's RTTI", returns a UClassID for the actual class.

Stable:
  ICU 2.2

Reimplemented from icu::UObject.

Locale icu::DecimalFormatSymbols::getLocale | ( | void |  | ) | const
| inline

Returns the locale for which this object was constructed.

Stable:
  ICU 2.6

Definition at line 514 of file dcfmtsym.h.

Locale icu::DecimalFormatSymbols::getLocale | ( | ULocDataLocaleType | type,
|  | UErrorCode & | status
| ) |  | const

Returns the locale for this object.

Two flavors are available: valid and actual locale.

Stable:
  ICU 2.8

const UnicodeString& icu::DecimalFormatSymbols::getPatternForCurrencySpacing | ( | UCurrencySpacing | type,
|  | UBool | beforeCurrency,
|  | UErrorCode & | status
| ) |  | const

Get pattern string for 'CurrencySpacing' that can be applied to currency format.

This API gets the CurrencySpacing data from ResourceBundle. The pattern can be empty if there is no data from current locale and its parent locales.

Parameters

  type | : UNUM_CURRENCY_MATCH, UNUM_CURRENCY_SURROUNDING_MATCH or UNUM_CURRENCY_INSERT.
  beforeCurrency | : true if the pattern is for before currency symbol. false if the pattern is for after currency symbol.
  status | Input/output parameter, set to success or failure code upon return.

Returns
  pattern string for currencyMatch, surroundingMatch or spaceInsert. Return empty string if there is no data for this locale and its parent locales.

Stable:
  ICU 4.8

static UClassID icu::DecimalFormatSymbols::getStaticClassID | ( |  | ) |
| static

ICU "poor man's RTTI", returns a UClassID for this class.

Stable:
  ICU 2.2

UnicodeString icu::DecimalFormatSymbols::getSymbol | ( | ENumberFormatSymbol | symbol | ) | const
| inline

Get one of the format symbols by its enum constant.

Each symbol is stored as a string so that graphemes (characters with modifier letters) can be used.

Parameters

  symbol | Constant to indicate a number format symbol.

Returns
  the format symbols by the param 'symbol'

Stable:
  ICU 2.0

Definition at line 462 of file dcfmtsym.h.

UBool icu::DecimalFormatSymbols::isCustomCurrencySymbol | ( |  | ) | const
| inline

Internal:
  Do not use.

This API is for internal use only. For ICU use only

Definition at line 389 of file dcfmtsym.h.

UBool icu::DecimalFormatSymbols::isCustomIntlCurrencySymbol | ( |  | ) | const
| inline

Internal:
  Do not use.

This API is for internal use only. For ICU use only

Definition at line 396 of file dcfmtsym.h.

References ULOC_FULLNAME_CAPACITY, and UNUM_CURRENCY_SPACING_COUNT.

UBool icu::DecimalFormatSymbols::operator!= | ( | const DecimalFormatSymbols & | other | ) | const
| inline

Return true if another object is semantically unequal to this one.

Parameters

  other | the object to be compared with.

Returns
  true if another object is semantically unequal to this one.

Stable:
  ICU 2.0

Definition at line 271 of file dcfmtsym.h.

References FALSE, icu::UObject::getDynamicClassID(), and icu::operator==().

DecimalFormatSymbols& icu::DecimalFormatSymbols::operator= | ( | const DecimalFormatSymbols & |  | ) |

Assignment operator.

Stable:
  ICU 2.0

UBool icu::DecimalFormatSymbols::operator== | ( | const DecimalFormatSymbols & | other | ) | const

Return true if another object is semantically equal to this one.

Parameters

  other | the object to be compared with.

Returns
  true if another object is semantically equal to this one.

Stable:
  ICU 2.0

void icu::DecimalFormatSymbols::setPatternForCurrencySpacing | ( | UCurrencySpacing | type,
|  | UBool | beforeCurrency,
|  | const UnicodeString & | pattern
| ) |  |

Set pattern string for 'CurrencySpacing' that can be applied to currency format.

Parameters

  type | : UNUM_CURRENCY_MATCH, UNUM_CURRENCY_SURROUNDING_MATCH or UNUM_CURRENCY_INSERT.
  beforeCurrency | : true if the pattern is for before currency symbol. false if the pattern is for after currency symbol.
  pattern | : pattern string to override current setting.

Stable:
  ICU 4.8

void icu::DecimalFormatSymbols::setSymbol | ( | ENumberFormatSymbol | symbol,
|  | const UnicodeString & | value,
|  | const UBool | propogateDigits = `TRUE`
| ) |  |
| inline

Set one of the format symbols by its enum constant.

Each symbol is stored as a string so that graphemes (characters with modifier letters) can be used.

Parameters

  symbol | Constant to indicate a number format symbol.
  value | value of the format symbol
  propogateDigits | If false, setting the zero digit will not automatically set 1-9. The default behavior is to automatically set 1-9 if zero is being set and the value it is being set to corresponds to a known Unicode zero digit.

Stable:
  ICU 2.0

Definition at line 487 of file dcfmtsym.h.

References icu::UnicodeString::char32At(), icu::UnicodeString::countChar32(), TRUE, and u_charDigitValue().

The documentation for this class was generated from the following file:

- dcfmtsym.h