ICU 75.1 75.1
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C API: Compatibility APIs for number formatting. More...
#include "unicode/utypes.h"
#include "unicode/uloc.h"
#include "unicode/ucurr.h"
#include "unicode/umisc.h"
#include "unicode/parseerr.h"
#include "unicode/uformattable.h"
#include "unicode/udisplaycontext.h"
#include "unicode/ufieldpositer.h"
#include "unicode/unumberoptions.h"
#include "unicode/localpointer.h"
Go to the source code of this file.
Namespaces | |
namespace | icu |
File coll.h. | |
Typedefs | |
typedef void * | UNumberFormat |
A number formatter. | |
typedef enum UNumberFormatStyle | UNumberFormatStyle |
The possible number format styles. | |
typedef enum UNumberFormatPadPosition | UNumberFormatPadPosition |
The possible number format pad positions. | |
typedef enum UNumberCompactStyle | UNumberCompactStyle |
Constants for specifying short or long format. | |
typedef enum UCurrencySpacing | UCurrencySpacing |
typedef enum UNumberFormatFields | UNumberFormatFields |
FieldPosition and UFieldPosition selectors for format fields defined by NumberFormat and UNumberFormat. | |
typedef enum UNumberFormatMinimumGroupingDigits | UNumberFormatMinimumGroupingDigits |
Selectors with special numeric values to use locale default minimum grouping digits for the DecimalFormat/UNumberFormat setMinimumGroupingDigits method. | |
typedef enum UNumberFormatAttribute | UNumberFormatAttribute |
The possible UNumberFormat numeric attributes. | |
typedef enum UNumberFormatTextAttribute | UNumberFormatTextAttribute |
The possible UNumberFormat text attributes. | |
typedef enum UNumberFormatSymbol | UNumberFormatSymbol |
Constants for specifying a number format symbol. | |
Functions | |
U_CAPI UNumberFormat * | unum_open (UNumberFormatStyle style, const UChar *pattern, int32_t patternLength, const char *locale, UParseError *parseErr, UErrorCode *status) |
Create and return a new UNumberFormat for formatting and parsing numbers. | |
U_CAPI void | unum_close (UNumberFormat *fmt) |
Close a UNumberFormat. | |
U_CAPI UNumberFormat * | unum_clone (const UNumberFormat *fmt, UErrorCode *status) |
Open a copy of a UNumberFormat. | |
U_CAPI int32_t | unum_format (const UNumberFormat *fmt, int32_t number, UChar *result, int32_t resultLength, UFieldPosition *pos, UErrorCode *status) |
Format an integer using a UNumberFormat. | |
U_CAPI int32_t | unum_formatInt64 (const UNumberFormat *fmt, int64_t number, UChar *result, int32_t resultLength, UFieldPosition *pos, UErrorCode *status) |
Format an int64 using a UNumberFormat. | |
U_CAPI int32_t | unum_formatDouble (const UNumberFormat *fmt, double number, UChar *result, int32_t resultLength, UFieldPosition *pos, UErrorCode *status) |
Format a double using a UNumberFormat. | |
U_CAPI int32_t | unum_formatDoubleForFields (const UNumberFormat *format, double number, UChar *result, int32_t resultLength, UFieldPositionIterator *fpositer, UErrorCode *status) |
Format a double using a UNumberFormat according to the UNumberFormat's locale, and initialize a UFieldPositionIterator that enumerates the subcomponents of the resulting string. | |
U_CAPI int32_t | unum_formatDecimal (const UNumberFormat *fmt, const char *number, int32_t length, UChar *result, int32_t resultLength, UFieldPosition *pos, UErrorCode *status) |
Format a decimal number using a UNumberFormat. | |
U_CAPI int32_t | unum_formatDoubleCurrency (const UNumberFormat *fmt, double number, UChar *currency, UChar *result, int32_t resultLength, UFieldPosition *pos, UErrorCode *status) |
Format a double currency amount using a UNumberFormat. | |
U_CAPI int32_t | unum_formatUFormattable (const UNumberFormat *fmt, const UFormattable *number, UChar *result, int32_t resultLength, UFieldPosition *pos, UErrorCode *status) |
Format a UFormattable into a string. | |
U_CAPI int32_t | unum_parse (const UNumberFormat *fmt, const UChar *text, int32_t textLength, int32_t *parsePos, UErrorCode *status) |
Parse a string into an integer using a UNumberFormat. | |
U_CAPI int64_t | unum_parseInt64 (const UNumberFormat *fmt, const UChar *text, int32_t textLength, int32_t *parsePos, UErrorCode *status) |
Parse a string into an int64 using a UNumberFormat. | |
U_CAPI double | unum_parseDouble (const UNumberFormat *fmt, const UChar *text, int32_t textLength, int32_t *parsePos, UErrorCode *status) |
Parse a string into a double using a UNumberFormat. | |
U_CAPI int32_t | unum_parseDecimal (const UNumberFormat *fmt, const UChar *text, int32_t textLength, int32_t *parsePos, char *outBuf, int32_t outBufLength, UErrorCode *status) |
Parse a number from a string into an unformatted numeric string using a UNumberFormat. | |
U_CAPI double | unum_parseDoubleCurrency (const UNumberFormat *fmt, const UChar *text, int32_t textLength, int32_t *parsePos, UChar *currency, UErrorCode *status) |
Parse a string into a double and a currency using a UNumberFormat. | |
U_CAPI UFormattable * | unum_parseToUFormattable (const UNumberFormat *fmt, UFormattable *result, const UChar *text, int32_t textLength, int32_t *parsePos, UErrorCode *status) |
Parse a UChar string into a UFormattable. | |
U_CAPI void | unum_applyPattern (UNumberFormat *format, UBool localized, const UChar *pattern, int32_t patternLength, UParseError *parseError, UErrorCode *status) |
Set the pattern used by a UNumberFormat. | |
U_CAPI const char * | unum_getAvailable (int32_t localeIndex) |
Get a locale for which decimal formatting patterns are available. | |
U_CAPI int32_t | unum_countAvailable (void) |
Determine how many locales have decimal formatting patterns available. | |
U_CAPI bool | unum_hasAttribute (const UNumberFormat *fmt, UNumberFormatAttribute attr) |
Returns true if the formatter supports the specified attribute and false if not. | |
U_CAPI int32_t | unum_getAttribute (const UNumberFormat *fmt, UNumberFormatAttribute attr) |
Get a numeric attribute associated with a UNumberFormat. | |
U_CAPI void | unum_setAttribute (UNumberFormat *fmt, UNumberFormatAttribute attr, int32_t newValue) |
Set a numeric attribute associated with a UNumberFormat. | |
U_CAPI double | unum_getDoubleAttribute (const UNumberFormat *fmt, UNumberFormatAttribute attr) |
Get a numeric attribute associated with a UNumberFormat. | |
U_CAPI void | unum_setDoubleAttribute (UNumberFormat *fmt, UNumberFormatAttribute attr, double newValue) |
Set a numeric attribute associated with a UNumberFormat. | |
U_CAPI int32_t | unum_getTextAttribute (const UNumberFormat *fmt, UNumberFormatTextAttribute tag, UChar *result, int32_t resultLength, UErrorCode *status) |
Get a text attribute associated with a UNumberFormat. | |
U_CAPI void | unum_setTextAttribute (UNumberFormat *fmt, UNumberFormatTextAttribute tag, const UChar *newValue, int32_t newValueLength, UErrorCode *status) |
Set a text attribute associated with a UNumberFormat. | |
U_CAPI int32_t | unum_toPattern (const UNumberFormat *fmt, UBool isPatternLocalized, UChar *result, int32_t resultLength, UErrorCode *status) |
Extract the pattern from a UNumberFormat. | |
U_CAPI int32_t | unum_getSymbol (const UNumberFormat *fmt, UNumberFormatSymbol symbol, UChar *buffer, int32_t size, UErrorCode *status) |
Get a symbol associated with a UNumberFormat. | |
U_CAPI void | unum_setSymbol (UNumberFormat *fmt, UNumberFormatSymbol symbol, const UChar *value, int32_t length, UErrorCode *status) |
Set a symbol associated with a UNumberFormat. | |
U_CAPI const char * | unum_getLocaleByType (const UNumberFormat *fmt, ULocDataLocaleType type, UErrorCode *status) |
Get the locale for this number format object. | |
U_CAPI void | unum_setContext (UNumberFormat *fmt, UDisplayContext value, UErrorCode *status) |
Set a particular UDisplayContext value in the formatter, such as UDISPCTX_CAPITALIZATION_FOR_STANDALONE. | |
U_CAPI UDisplayContext | unum_getContext (const UNumberFormat *fmt, UDisplayContextType type, UErrorCode *status) |
Get the formatter's UDisplayContext value for the specified UDisplayContextType, such as UDISPCTX_TYPE_CAPITALIZATION. | |
C API: Compatibility APIs for number formatting.
IMPORTANT: New users with are strongly encouraged to see if unumberformatter.h fits their use case. Although not deprecated, this header is provided for backwards compatibility only.
Number Format C API Provides functions for formatting and parsing a number. Also provides methods for determining which locales have number formats, and what their names are.
UNumberFormat helps you to format and parse numbers for any locale. Your code can be completely independent of the locale conventions for decimal points, thousands-separators, or even the particular decimal digits used, or whether the number format is even decimal. There are different number format styles like decimal, currency, percent and spellout.
To format a number for the current Locale, use one of the static factory methods:
UChar myString[20];double myNumber = 7.0;UErrorCode status = U_ZERO_ERROR;unum_formatDouble(nf, myNumber, myString, 20, NULL, &status);printf(" Example 1: %s\n", austrdup(myString) ); //austrdup( a function used to convert UChar* to char*)U_CAPI int32_t unum_formatDouble(const UNumberFormat *fmt, double number, UChar *result, int32_t resultLength, UFieldPosition *pos, UErrorCode *status)Format a double using a UNumberFormat.U_CAPI UNumberFormat * unum_open(UNumberFormatStyle style, const UChar *pattern, int32_t patternLength, const char *locale, UParseError *parseErr, UErrorCode *status)Create and return a new UNumberFormat for formatting and parsing numbers.#define NULLDefine NULL if necessary, to nullptr for C++ and to ((void *)0) for C.Definition utypes.h:188
If you are formatting multiple numbers, it is more efficient to get the format and use it multiple times so that the system doesn't have to fetch the information about the local language and country conventions multiple times.
uint32_t i, resultlength, reslenneeded;UErrorCode status = U_ZERO_ERROR;UFieldPosition pos;uint32_t a[] = { 123, 3333, -1234567 };const uint32_t a_len = sizeof(a) / sizeof(a[0]);UNumberFormat* nf;for (i = 0; i < a_len; i++) {resultlength=0;reslenneeded=unum_format(nf, a[i], NULL, resultlength, &pos, &status);result = NULL;if(status==U_BUFFER_OVERFLOW_ERROR){status=U_ZERO_ERROR;resultlength=reslenneeded+1;unum_format(nf, a[i], result, resultlength, &pos, &status);}printf( " Example 2: %s\n", austrdup(result));free(result);}A struct representing a range of text containing a specific field.Definition umisc.h:34U_CAPI int32_t unum_format(const UNumberFormat *fmt, int32_t number, UChar *result, int32_t resultLength, UFieldPosition *pos, UErrorCode *status)Format an integer using a UNumberFormat.
To format a number for a different Locale, specify it in the call to unum_open().
You can use a NumberFormat API unum_parse() to parse.
UErrorCode status = U_ZERO_ERROR;int32_t pos=0;int32_t num;num = unum_parse(nf, str, u_strlen(str), &pos, &status);U_CAPI int32_t u_strlen(const UChar *s)U_CAPI int32_t unum_parse(const UNumberFormat *fmt, const UChar *text, int32_t textLength, int32_t *parsePos, UErrorCode *status)Parse a string into an integer using a UNumberFormat.
Use UNUM_DECIMAL to get the normal number format for that country. There are other static options available. Use UNUM_CURRENCY to get the currency number format for that country. Use UNUM_PERCENT to get a format for displaying percentages. With this format, a fraction from 0.53 is displayed as 53%.
Use a pattern to create either a DecimalFormat or a RuleBasedNumberFormat formatter. The pattern must conform to the syntax defined for those formatters.
You can also control the display of numbers with such function as unum_getAttributes() and unum_setAttributes(), which let you set the minimum fraction digits, grouping, etc.
You can also use forms of the parse and format methods with ParsePosition and UFieldPosition to allow you to:
It is also possible to change or set the symbols used for a particular locale like the currency symbol, the grouping separator , monetary separator etc by making use of functions unum_setSymbols() and unum_getSymbols().
Definition in file unum.h.
typedef enum UCurrencySpacing UCurrencySpacing |
typedef enum UNumberCompactStyle UNumberCompactStyle |
Constants for specifying short or long format.
typedef void* UNumberFormat |
typedef enum UNumberFormatAttribute UNumberFormatAttribute |
The possible UNumberFormat numeric attributes.
typedef enum UNumberFormatFields UNumberFormatFields |
FieldPosition and UFieldPosition selectors for format fields defined by NumberFormat and UNumberFormat.
Selectors with special numeric values to use locale default minimum grouping digits for the DecimalFormat/UNumberFormat setMinimumGroupingDigits method.
Do not use these constants with the [U]NumberFormatter API.
typedef enum UNumberFormatPadPosition UNumberFormatPadPosition |
The possible number format pad positions.
typedef enum UNumberFormatStyle UNumberFormatStyle |
The possible number format styles.
typedef enum UNumberFormatSymbol UNumberFormatSymbol |
Constants for specifying a number format symbol.
typedef enum UNumberFormatTextAttribute UNumberFormatTextAttribute |
The possible UNumberFormat text attributes.
enum UCurrencySpacing |
Constants for specifying currency spacing.
Enumerator | |
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UNUM_CURRENCY_MATCH |
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UNUM_CURRENCY_SURROUNDING_MATCH |
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UNUM_CURRENCY_INSERT |
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UNUM_CURRENCY_SPACING_COUNT | One more than the highest normal UCurrencySpacing value.
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enum UNumberCompactStyle |
The possible UNumberFormat numeric attributes.
Enumerator | |
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UNUM_PARSE_INT_ONLY | Parse integers only. |
UNUM_GROUPING_USED | Use grouping separator. |
UNUM_DECIMAL_ALWAYS_SHOWN | Always show decimal point. |
UNUM_MAX_INTEGER_DIGITS | Maximum integer digits. |
UNUM_MIN_INTEGER_DIGITS | Minimum integer digits. |
UNUM_INTEGER_DIGITS | Integer digits. |
UNUM_MAX_FRACTION_DIGITS | Maximum fraction digits. |
UNUM_MIN_FRACTION_DIGITS | Minimum fraction digits. |
UNUM_FRACTION_DIGITS | Fraction digits. |
UNUM_MULTIPLIER | Multiplier. |
UNUM_GROUPING_SIZE | Grouping size. |
UNUM_ROUNDING_MODE | Rounding Mode. |
UNUM_ROUNDING_INCREMENT | Rounding increment. |
UNUM_FORMAT_WIDTH | The width to which the output of |
UNUM_PADDING_POSITION | The position at which padding will take place. |
UNUM_SECONDARY_GROUPING_SIZE | Secondary grouping size. |
UNUM_SIGNIFICANT_DIGITS_USED | Use significant digits.
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UNUM_MIN_SIGNIFICANT_DIGITS | Minimum significant digits.
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UNUM_MAX_SIGNIFICANT_DIGITS | Maximum significant digits.
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UNUM_LENIENT_PARSE | Lenient parse mode used by rule-based formats.
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UNUM_SCALE | Scale, which adjusts the position of the decimal point when formatting. Amounts will be multiplied by 10 ^ (scale) before they are formatted. The default value for the scale is 0 ( no adjustment ). Example: setting the scale to 3, 123 formats as "123,000" Example: setting the scale to -4, 123 formats as "0.0123" This setting is analogous to getMultiplierScale() and setMultiplierScale() in decimfmt.h.
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UNUM_MINIMUM_GROUPING_DIGITS | Minimum grouping digits; most commonly set to 2 to print "1000" instead of "1,000". See DecimalFormat::getMinimumGroupingDigits(). For better control over grouping strategies, use UNumberFormatter.
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UNUM_CURRENCY_USAGE | if this attribute is set to 0, it is set to UNUM_CURRENCY_STANDARD purpose, otherwise it is UNUM_CASH_CURRENCY purpose Default: 0 (UNUM_CURRENCY_STANDARD purpose)
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UNUM_MAX_NONBOOLEAN_ATTRIBUTE | One below the first bitfield-boolean item. All items after this one are stored in boolean form.
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UNUM_FORMAT_FAIL_IF_MORE_THAN_MAX_DIGITS | If 1, specifies that if setting the "max integer digits" attribute would truncate a value, set an error status rather than silently truncating. For example, formatting the value 1234 with 4 max int digits would succeed, but formatting 12345 would fail. There is no effect on parsing. Default: 0 (not set)
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UNUM_PARSE_NO_EXPONENT | if this attribute is set to 1, specifies that, if the pattern doesn't contain an exponent, the exponent will not be parsed. If the pattern does contain an exponent, this attribute has no effect. Has no effect on formatting. Default: 0 (unset)
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UNUM_PARSE_DECIMAL_MARK_REQUIRED | if this attribute is set to 1, specifies that, if the pattern contains a decimal mark the input is required to have one. If this attribute is set to 0, specifies that input does not have to contain a decimal mark. Has no effect on formatting. Default: 0 (unset)
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UNUM_PARSE_CASE_SENSITIVE | Parsing: if set to 1, parsing is sensitive to case (lowercase/uppercase).
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UNUM_SIGN_ALWAYS_SHOWN | Formatting: if set to 1, whether to show the plus sign on non-negative numbers. For better control over sign display, use UNumberFormatter.
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UNUM_LIMIT_BOOLEAN_ATTRIBUTE | Limit of boolean attributes. (value should not depend on U_HIDE conditionals)
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enum UNumberFormatFields |
FieldPosition and UFieldPosition selectors for format fields defined by NumberFormat and UNumberFormat.
Enumerator | |
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UNUM_INTEGER_FIELD |
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UNUM_FRACTION_FIELD |
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UNUM_DECIMAL_SEPARATOR_FIELD |
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UNUM_EXPONENT_SYMBOL_FIELD |
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UNUM_EXPONENT_SIGN_FIELD |
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UNUM_EXPONENT_FIELD |
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UNUM_GROUPING_SEPARATOR_FIELD |
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UNUM_CURRENCY_FIELD |
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UNUM_PERCENT_FIELD |
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UNUM_PERMILL_FIELD |
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UNUM_SIGN_FIELD |
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UNUM_MEASURE_UNIT_FIELD |
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UNUM_COMPACT_FIELD |
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UNUM_APPROXIMATELY_SIGN_FIELD | Approximately sign. In ICU 70, this was categorized under the generic SIGN field.
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UNUM_FIELD_COUNT | One more than the highest normal UNumberFormatFields value.
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Selectors with special numeric values to use locale default minimum grouping digits for the DecimalFormat/UNumberFormat setMinimumGroupingDigits method.
Do not use these constants with the [U]NumberFormatter API.
Enumerator | |
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UNUM_MINIMUM_GROUPING_DIGITS_AUTO | Display grouping using the default strategy for all locales.
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UNUM_MINIMUM_GROUPING_DIGITS_MIN2 | Display grouping using locale defaults, except do not show grouping on values smaller than 10000 (such that there is a minimum of two digits before the first separator).
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enum UNumberFormatStyle |
The possible number format styles.
Enumerator | |
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UNUM_PATTERN_DECIMAL | Decimal format defined by a pattern string.
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UNUM_DECIMAL | Decimal format ("normal" style).
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UNUM_CURRENCY | Currency format (generic). Defaults to UNUM_CURRENCY_STANDARD style (using currency symbol, e.g., "$1.00", with non-accounting style for negative values e.g. using minus sign). The specific style may be specified using the -cf- locale key.
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UNUM_PERCENT | Percent format.
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UNUM_SCIENTIFIC | Scientific format.
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UNUM_SPELLOUT | Spellout rule-based format. The default ruleset can be specified/changed using unum_setTextAttribute with UNUM_DEFAULT_RULESET; the available public rulesets can be listed using unum_getTextAttribute with UNUM_PUBLIC_RULESETS.
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UNUM_ORDINAL | Ordinal rule-based format . The default ruleset can be specified/changed using unum_setTextAttribute with UNUM_DEFAULT_RULESET; the available public rulesets can be listed using unum_getTextAttribute with UNUM_PUBLIC_RULESETS.
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UNUM_DURATION | Duration rule-based format.
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UNUM_NUMBERING_SYSTEM | Numbering system rule-based format.
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UNUM_PATTERN_RULEBASED | Rule-based format defined by a pattern string.
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UNUM_CURRENCY_ISO | Currency format with an ISO currency code, e.g., "USD1.00".
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UNUM_CURRENCY_PLURAL | Currency format with a pluralized currency name, e.g., "1.00 US dollar" and "3.00 US dollars".
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UNUM_CURRENCY_ACCOUNTING | Currency format for accounting, e.g., "($3.00)" for negative currency amount instead of "-$3.00" ( Overrides any style specified using -cf- key in locale.
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UNUM_CASH_CURRENCY | Currency format with a currency symbol given CASH usage, e.g., "NT$3" instead of "NT$3.23".
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UNUM_DECIMAL_COMPACT_SHORT | Decimal format expressed using compact notation (short form, corresponds to UNumberCompactStyle=UNUM_SHORT) e.g. "23K", "45B"
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UNUM_DECIMAL_COMPACT_LONG | Decimal format expressed using compact notation (long form, corresponds to UNumberCompactStyle=UNUM_LONG) e.g. "23 thousand", "45 billion"
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UNUM_CURRENCY_STANDARD | Currency format with a currency symbol, e.g., "$1.00", using non-accounting style for negative values (e.g. minus sign). Overrides any style specified using -cf- key in locale.
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UNUM_FORMAT_STYLE_COUNT | One more than the highest normal UNumberFormatStyle value.
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UNUM_DEFAULT | Default format.
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UNUM_IGNORE | Alias for UNUM_PATTERN_DECIMAL.
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enum UNumberFormatSymbol |
Constants for specifying a number format symbol.
Enumerator | |
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UNUM_DECIMAL_SEPARATOR_SYMBOL | The decimal separator. |
UNUM_GROUPING_SEPARATOR_SYMBOL | The grouping separator. |
UNUM_PATTERN_SEPARATOR_SYMBOL | The pattern separator. |
UNUM_PERCENT_SYMBOL | The percent sign. |
UNUM_ZERO_DIGIT_SYMBOL | Zero. |
UNUM_DIGIT_SYMBOL | Character representing a digit in the pattern. |
UNUM_MINUS_SIGN_SYMBOL | The minus sign. |
UNUM_PLUS_SIGN_SYMBOL | The plus sign. |
UNUM_CURRENCY_SYMBOL | The currency symbol. |
UNUM_INTL_CURRENCY_SYMBOL | The international currency symbol. |
UNUM_MONETARY_SEPARATOR_SYMBOL | The monetary separator. |
UNUM_EXPONENTIAL_SYMBOL | The exponential symbol. |
UNUM_PERMILL_SYMBOL | Per mill symbol. |
UNUM_PAD_ESCAPE_SYMBOL | Escape padding character. |
UNUM_INFINITY_SYMBOL | Infinity symbol. |
UNUM_NAN_SYMBOL | Nan symbol. |
UNUM_SIGNIFICANT_DIGIT_SYMBOL | Significant digit symbol.
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UNUM_MONETARY_GROUPING_SEPARATOR_SYMBOL | The monetary grouping separator.
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UNUM_ONE_DIGIT_SYMBOL | One.
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UNUM_TWO_DIGIT_SYMBOL | Two.
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UNUM_THREE_DIGIT_SYMBOL | Three.
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UNUM_FOUR_DIGIT_SYMBOL | Four.
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UNUM_FIVE_DIGIT_SYMBOL | Five.
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UNUM_SIX_DIGIT_SYMBOL | Six.
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UNUM_SEVEN_DIGIT_SYMBOL | Seven.
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UNUM_EIGHT_DIGIT_SYMBOL | Eight.
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UNUM_NINE_DIGIT_SYMBOL | Nine.
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UNUM_EXPONENT_MULTIPLICATION_SYMBOL | Multiplication sign.
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UNUM_APPROXIMATELY_SIGN_SYMBOL | Approximately sign.
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UNUM_FORMAT_SYMBOL_COUNT | One more than the highest normal UNumberFormatSymbol value.
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The possible UNumberFormat text attributes.
Enumerator | |
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UNUM_POSITIVE_PREFIX | Positive prefix. |
UNUM_POSITIVE_SUFFIX | Positive suffix. |
UNUM_NEGATIVE_PREFIX | Negative prefix. |
UNUM_NEGATIVE_SUFFIX | Negative suffix. |
UNUM_PADDING_CHARACTER | The character used to pad to the format width. |
UNUM_CURRENCY_CODE | The ISO currency code. |
UNUM_DEFAULT_RULESET | The default rule set, such as "%spellout-numbering-year:", "%spellout-cardinal:", "%spellout-ordinal-masculine-plural:", "%spellout-ordinal-feminine:", or "%spellout-ordinal-neuter:". The available public rulesets can be listed using unum_getTextAttribute with UNUM_PUBLIC_RULESETS. This is only available with rule-based formatters.
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UNUM_PUBLIC_RULESETS | The public rule sets. This is only available with rule-based formatters. This is a read-only attribute. The public rulesets are returned as a single string, with each ruleset name delimited by ';' (semicolon). See the CLDR LDML spec for more information about RBNF rulesets: http://www.unicode.org/reports/tr35/tr35-numbers.html#Rule-Based_Number_Formatting
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U_CAPI void unum_applyPattern | ( | UNumberFormat * | format, |
UBool | localized, | ||
const UChar * | pattern, | ||
int32_t | patternLength, | ||
UParseError * | parseError, | ||
UErrorCode * | status | ||
) |
Set the pattern used by a UNumberFormat.
This can only be used on a DecimalFormat, other formats return U_UNSUPPORTED_ERROR in the status.
format | The formatter to set. |
localized | true if the pattern is localized, false otherwise. |
pattern | The new pattern |
patternLength | The length of pattern, or -1 if null-terminated. |
parseError | A pointer to UParseError to receive information about errors occurred during parsing, or NULL if no parse error information is desired. |
status | A pointer to an input-output UErrorCode. |
U_CAPI UNumberFormat * unum_clone | ( | const UNumberFormat * | fmt, |
UErrorCode * | status | ||
) |
Open a copy of a UNumberFormat.
This function performs a deep copy.
fmt | The format to copy |
status | A pointer to an UErrorCode to receive any errors. |
U_CAPI void unum_close | ( | UNumberFormat * | fmt | ) |
Close a UNumberFormat.
Once closed, a UNumberFormat may no longer be used.
fmt | The formatter to close. |
U_CAPI int32_t unum_countAvailable | ( | void | ) |
Determine how many locales have decimal formatting patterns available.
The results of this call are not valid for rule-based number formats. This function is useful for determining the loop ending condition for calls to unum_getAvailable
.
U_CAPI int32_t unum_format | ( | const UNumberFormat * | fmt, |
int32_t | number, | ||
UChar * | result, | ||
int32_t | resultLength, | ||
UFieldPosition * | pos, | ||
UErrorCode * | status | ||
) |
Format an integer using a UNumberFormat.
The integer will be formatted according to the UNumberFormat's locale.
fmt | The formatter to use. |
number | The number to format. |
result | A pointer to a buffer to receive the NULL-terminated formatted number. If the formatted number fits into dest but cannot be NULL-terminated (length == resultLength) then the error code is set to U_STRING_NOT_TERMINATED_WARNING. If the formatted number doesn't fit into result then the error code is set to U_BUFFER_OVERFLOW_ERROR. |
resultLength | The maximum size of result. |
pos | A pointer to a UFieldPosition. On input, position->field is read. On output, position->beginIndex and position->endIndex indicate the beginning and ending indices of field number position->field, if such a field exists. This parameter may be NULL, in which case no field |
status | A pointer to an UErrorCode to receive any errors |
U_CAPI int32_t unum_formatDecimal | ( | const UNumberFormat * | fmt, |
const char * | number, | ||
int32_t | length, | ||
UChar * | result, | ||
int32_t | resultLength, | ||
UFieldPosition * | pos, | ||
UErrorCode * | status | ||
) |
Format a decimal number using a UNumberFormat.
The number will be formatted according to the UNumberFormat's locale. The syntax of the input number is a "numeric string" as defined in the Decimal Arithmetic Specification, available at http://speleotrove.com/decimal
fmt | The formatter to use. |
number | The number to format. |
length | The length of the input number, or -1 if the input is nul-terminated. |
result | A pointer to a buffer to receive the NULL-terminated formatted number. If the formatted number fits into dest but cannot be NULL-terminated (length == resultLength) then the error code is set to U_STRING_NOT_TERMINATED_WARNING. If the formatted number doesn't fit into result then the error code is set to U_BUFFER_OVERFLOW_ERROR. |
resultLength | The maximum size of result. |
pos | A pointer to a UFieldPosition. On input, position->field is read. On output, position->beginIndex and position->endIndex indicate the beginning and ending indices of field number position->field, if such a field exists. This parameter may be NULL, in which case it is ignored. |
status | A pointer to an UErrorCode to receive any errors |
U_CAPI int32_t unum_formatDouble | ( | const UNumberFormat * | fmt, |
double | number, | ||
UChar * | result, | ||
int32_t | resultLength, | ||
UFieldPosition * | pos, | ||
UErrorCode * | status | ||
) |
Format a double using a UNumberFormat.
The double will be formatted according to the UNumberFormat's locale.
fmt | The formatter to use. |
number | The number to format. |
result | A pointer to a buffer to receive the NULL-terminated formatted number. If the formatted number fits into dest but cannot be NULL-terminated (length == resultLength) then the error code is set to U_STRING_NOT_TERMINATED_WARNING. If the formatted number doesn't fit into result then the error code is set to U_BUFFER_OVERFLOW_ERROR. |
resultLength | The maximum size of result. |
pos | A pointer to a UFieldPosition. On input, position->field is read. On output, position->beginIndex and position->endIndex indicate the beginning and ending indices of field number position->field, if such a field exists. This parameter may be NULL, in which case no field |
status | A pointer to an UErrorCode to receive any errors |
U_CAPI int32_t unum_formatDoubleCurrency | ( | const UNumberFormat * | fmt, |
double | number, | ||
UChar * | currency, | ||
UChar * | result, | ||
int32_t | resultLength, | ||
UFieldPosition * | pos, | ||
UErrorCode * | status | ||
) |
Format a double currency amount using a UNumberFormat.
The double will be formatted according to the UNumberFormat's locale.
To format an exact decimal value with a currency, use unum_setTextAttribute(UNUM_CURRENCY_CODE, ...)
followed by unum_formatDecimal. Your UNumberFormat must be created with the UNUM_CURRENCY style. Alternatively, consider using unumf_openForSkeletonAndLocale.
fmt | the formatter to use |
number | the number to format |
currency | the 3-letter null-terminated ISO 4217 currency code |
result | A pointer to a buffer to receive the NULL-terminated formatted number. If the formatted number fits into dest but cannot be NULL-terminated (length == resultLength) then the error code is set to U_STRING_NOT_TERMINATED_WARNING. If the formatted number doesn't fit into result then the error code is set to U_BUFFER_OVERFLOW_ERROR. |
resultLength | the maximum number of UChars to write to result |
pos | a pointer to a UFieldPosition. On input, position->field is read. On output, position->beginIndex and position->endIndex indicate the beginning and ending indices of field number position->field, if such a field exists. This parameter may be NULL, in which case it is ignored. |
status | a pointer to an input-output UErrorCode |
U_CAPI int32_t unum_formatDoubleForFields | ( | const UNumberFormat * | format, |
double | number, | ||
UChar * | result, | ||
int32_t | resultLength, | ||
UFieldPositionIterator * | fpositer, | ||
UErrorCode * | status | ||
) |
Format a double using a UNumberFormat according to the UNumberFormat's locale, and initialize a UFieldPositionIterator that enumerates the subcomponents of the resulting string.
format | The formatter to use. |
number | The number to format. |
result | A pointer to a buffer to receive the NULL-terminated formatted number. If the formatted number fits into dest but cannot be NULL-terminated (length == resultLength) then the error code is set to U_STRING_NOT_TERMINATED_WARNING. If the formatted number doesn't fit into result then the error code is set to U_BUFFER_OVERFLOW_ERROR. |
resultLength | The maximum size of result. |
fpositer | A pointer to a UFieldPositionIterator created by ufieldpositer_open (may be NULL if field position information is not needed, but in this case it's preferable to use unum_formatDouble ). Iteration information already present in the UFieldPositionIterator is deleted, and the iterator is reset to apply to the fields in the formatted string created by this function call. The field values and indexes returned by ufieldpositer_next represent fields denoted by the UNumberFormatFields enum. Fields are not returned in a guaranteed order. Fields cannot overlap, but they may nest. For example, 1234 could format as "1,234" which might consist of a grouping separator field for ',' and an integer field encompassing the entire string. |
status | A pointer to an UErrorCode to receive any errors |
U_CAPI int32_t unum_formatInt64 | ( | const UNumberFormat * | fmt, |
int64_t | number, | ||
UChar * | result, | ||
int32_t | resultLength, | ||
UFieldPosition * | pos, | ||
UErrorCode * | status | ||
) |
Format an int64 using a UNumberFormat.
The int64 will be formatted according to the UNumberFormat's locale.
fmt | The formatter to use. |
number | The number to format. |
result | A pointer to a buffer to receive the NULL-terminated formatted number. If the formatted number fits into dest but cannot be NULL-terminated (length == resultLength) then the error code is set to U_STRING_NOT_TERMINATED_WARNING. If the formatted number doesn't fit into result then the error code is set to U_BUFFER_OVERFLOW_ERROR. |
resultLength | The maximum size of result. |
pos | A pointer to a UFieldPosition. On input, position->field is read. On output, position->beginIndex and position->endIndex indicate the beginning and ending indices of field number position->field, if such a field exists. This parameter may be NULL, in which case no field |
status | A pointer to an UErrorCode to receive any errors |
U_CAPI int32_t unum_formatUFormattable | ( | const UNumberFormat * | fmt, |
const UFormattable * | number, | ||
UChar * | result, | ||
int32_t | resultLength, | ||
UFieldPosition * | pos, | ||
UErrorCode * | status | ||
) |
Format a UFormattable into a string.
fmt | the formatter to use |
number | the number to format, as a UFormattable |
result | A pointer to a buffer to receive the NULL-terminated formatted number. If the formatted number fits into dest but cannot be NULL-terminated (length == resultLength) then the error code is set to U_STRING_NOT_TERMINATED_WARNING. If the formatted number doesn't fit into result then the error code is set to U_BUFFER_OVERFLOW_ERROR. |
resultLength | the maximum number of UChars to write to result |
pos | a pointer to a UFieldPosition. On input, position->field is read. On output, position->beginIndex and position->endIndex indicate the beginning and ending indices of field number position->field, if such a field exists. This parameter may be NULL, in which case it is ignored. |
status | a pointer to an input-output UErrorCode |
U_CAPI int32_t unum_getAttribute | ( | const UNumberFormat * | fmt, |
UNumberFormatAttribute | attr | ||
) |
Get a numeric attribute associated with a UNumberFormat.
An example of a numeric attribute is the number of integer digits a formatter will produce.
fmt | The formatter to query. |
attr | The attribute to query; one of UNUM_PARSE_INT_ONLY, UNUM_GROUPING_USED, UNUM_DECIMAL_ALWAYS_SHOWN, UNUM_MAX_INTEGER_DIGITS, UNUM_MIN_INTEGER_DIGITS, UNUM_INTEGER_DIGITS, UNUM_MAX_FRACTION_DIGITS, UNUM_MIN_FRACTION_DIGITS, UNUM_FRACTION_DIGITS, UNUM_MULTIPLIER, UNUM_GROUPING_SIZE, UNUM_ROUNDING_MODE, UNUM_FORMAT_WIDTH, UNUM_PADDING_POSITION, UNUM_SECONDARY_GROUPING_SIZE, UNUM_SCALE, UNUM_MINIMUM_GROUPING_DIGITS. |
U_CAPI const char * unum_getAvailable | ( | int32_t | localeIndex | ) |
Get a locale for which decimal formatting patterns are available.
A UNumberFormat in a locale returned by this function will perform the correct formatting and parsing for the locale. The results of this call are not valid for rule-based number formats.
localeIndex | The index of the desired locale. |
U_CAPI UDisplayContext unum_getContext | ( | const UNumberFormat * | fmt, |
UDisplayContextType | type, | ||
UErrorCode * | status | ||
) |
Get the formatter's UDisplayContext value for the specified UDisplayContextType, such as UDISPCTX_TYPE_CAPITALIZATION.
fmt | The formatter to query. |
type | The UDisplayContextType whose value to return |
status | A pointer to an UErrorCode to receive any errors |
U_CAPI double unum_getDoubleAttribute | ( | const UNumberFormat * | fmt, |
UNumberFormatAttribute | attr | ||
) |
Get a numeric attribute associated with a UNumberFormat.
An example of a numeric attribute is the number of integer digits a formatter will produce. If the formatter does not understand the attribute, -1 is returned. The caller should use unum_hasAttribute() to determine if the attribute is supported, rather than relying on this function returning -1.
fmt | The formatter to query. |
attr | The attribute to query; e.g. UNUM_ROUNDING_INCREMENT. |
U_CAPI const char * unum_getLocaleByType | ( | const UNumberFormat * | fmt, |
ULocDataLocaleType | type, | ||
UErrorCode * | status | ||
) |
Get the locale for this number format object.
You can choose between valid and actual locale.
fmt | The formatter to get the locale from |
type | type of the locale we're looking for (valid or actual) |
status | error code for the operation |
U_CAPI int32_t unum_getSymbol | ( | const UNumberFormat * | fmt, |
UNumberFormatSymbol | symbol, | ||
UChar * | buffer, | ||
int32_t | size, | ||
UErrorCode * | status | ||
) |
Get a symbol associated with a UNumberFormat.
A UNumberFormat uses symbols to represent the special locale-dependent characters in a number, for example the percent sign. This API is not supported for rule-based formatters.
fmt | The formatter to query. |
symbol | The UNumberFormatSymbol constant for the symbol to get |
buffer | The string buffer that will receive the symbol string; if it is NULL, then only the length of the symbol is returned |
size | The size of the string buffer |
status | A pointer to an UErrorCode to receive any errors |
length>=size
U_CAPI int32_t unum_getTextAttribute | ( | const UNumberFormat * | fmt, |
UNumberFormatTextAttribute | tag, | ||
UChar * | result, | ||
int32_t | resultLength, | ||
UErrorCode * | status | ||
) |
Get a text attribute associated with a UNumberFormat.
An example of a text attribute is the suffix for positive numbers. If the formatter does not understand the attribute, U_UNSUPPORTED_ERROR is returned as the status. Rule-based formatters only understand UNUM_DEFAULT_RULESET and UNUM_PUBLIC_RULESETS.
fmt | The formatter to query. |
tag | The attribute to query; one of UNUM_POSITIVE_PREFIX, UNUM_POSITIVE_SUFFIX, UNUM_NEGATIVE_PREFIX, UNUM_NEGATIVE_SUFFIX, UNUM_PADDING_CHARACTER, UNUM_CURRENCY_CODE, UNUM_DEFAULT_RULESET, or UNUM_PUBLIC_RULESETS. |
result | A pointer to a buffer to receive the attribute. |
resultLength | The maximum size of result. |
status | A pointer to an UErrorCode to receive any errors |
U_CAPI bool unum_hasAttribute | ( | const UNumberFormat * | fmt, |
UNumberFormatAttribute | attr | ||
) |
Returns true if the formatter supports the specified attribute and false if not.
fmt | The formatter to query. |
attr | The attribute to query. This can be any value of UNumberFormatterAttribute, regardless of type. |
U_CAPI UNumberFormat * unum_open | ( | UNumberFormatStyle | style, |
const UChar * | pattern, | ||
int32_t | patternLength, | ||
const char * | locale, | ||
UParseError * | parseErr, | ||
UErrorCode * | status | ||
) |
Create and return a new UNumberFormat for formatting and parsing numbers.
A UNumberFormat may be used to format numbers by calling unum_format
, and to parse numbers by calling unum_parse
. The caller must call unum_close
when done to release resources used by this object.
style | The type of number format to open: one of UNUM_DECIMAL, UNUM_CURRENCY, UNUM_PERCENT, UNUM_SCIENTIFIC, UNUM_CURRENCY_ISO, UNUM_CURRENCY_PLURAL, UNUM_SPELLOUT, UNUM_ORDINAL, UNUM_DURATION, UNUM_NUMBERING_SYSTEM, UNUM_PATTERN_DECIMAL, UNUM_PATTERN_RULEBASED, or UNUM_DEFAULT. If UNUM_PATTERN_DECIMAL or UNUM_PATTERN_RULEBASED is passed then the number format is opened using the given pattern, which must conform to the syntax described in DecimalFormat or RuleBasedNumberFormat, respectively. |
NOTE:: New users with are strongly encouraged to use unumf_openForSkeletonAndLocale instead of unum_open.
pattern | A pattern specifying the format to use. This parameter is ignored unless the style is UNUM_PATTERN_DECIMAL or UNUM_PATTERN_RULEBASED. |
patternLength | The number of characters in the pattern, or -1 if null-terminated. This parameter is ignored unless the style is UNUM_PATTERN. |
locale | A locale identifier to use to determine formatting and parsing conventions, or NULL to use the default locale. |
parseErr | A pointer to a UParseError struct to receive the details of any parsing errors, or NULL if no parsing error details are desired. |
status | A pointer to an input-output UErrorCode. |
U_CAPI int32_t unum_parse | ( | const UNumberFormat * | fmt, |
const UChar * | text, | ||
int32_t | textLength, | ||
int32_t * | parsePos, | ||
UErrorCode * | status | ||
) |
Parse a string into an integer using a UNumberFormat.
The string will be parsed according to the UNumberFormat's locale. Note: parsing is not supported for styles UNUM_DECIMAL_COMPACT_SHORT and UNUM_DECIMAL_COMPACT_LONG.
fmt | The formatter to use. |
text | The text to parse. |
textLength | The length of text, or -1 if null-terminated. |
parsePos | If not NULL, on input a pointer to an integer specifying the offset at which to begin parsing. If not NULL, on output the offset at which parsing ended. |
status | A pointer to an UErrorCode to receive any errors |
U_CAPI int32_t unum_parseDecimal | ( | const UNumberFormat * | fmt, |
const UChar * | text, | ||
int32_t | textLength, | ||
int32_t * | parsePos, | ||
char * | outBuf, | ||
int32_t | outBufLength, | ||
UErrorCode * | status | ||
) |
Parse a number from a string into an unformatted numeric string using a UNumberFormat.
The input string will be parsed according to the UNumberFormat's locale. The syntax of the output is a "numeric string" as defined in the Decimal Arithmetic Specification, available at http://speleotrove.com/decimal Note: parsing is not supported for styles UNUM_DECIMAL_COMPACT_SHORT and UNUM_DECIMAL_COMPACT_LONG.
fmt | The formatter to use. |
text | The text to parse. |
textLength | The length of text, or -1 if null-terminated. |
parsePos | If not NULL, on input a pointer to an integer specifying the offset at which to begin parsing. If not NULL, on output the offset at which parsing ended. |
outBuf | A (char *) buffer to receive the parsed number as a string. The output string will be nul-terminated if there is sufficient space. |
outBufLength | The size of the output buffer. May be zero, in which case the outBuf pointer may be NULL, and the function will return the size of the output string. |
status | A pointer to an UErrorCode to receive any errors |
U_CAPI double unum_parseDouble | ( | const UNumberFormat * | fmt, |
const UChar * | text, | ||
int32_t | textLength, | ||
int32_t * | parsePos, | ||
UErrorCode * | status | ||
) |
Parse a string into a double using a UNumberFormat.
The string will be parsed according to the UNumberFormat's locale. Note: parsing is not supported for styles UNUM_DECIMAL_COMPACT_SHORT and UNUM_DECIMAL_COMPACT_LONG.
fmt | The formatter to use. |
text | The text to parse. |
textLength | The length of text, or -1 if null-terminated. |
parsePos | If not NULL, on input a pointer to an integer specifying the offset at which to begin parsing. If not NULL, on output the offset at which parsing ended. |
status | A pointer to an UErrorCode to receive any errors |
U_CAPI double unum_parseDoubleCurrency | ( | const UNumberFormat * | fmt, |
const UChar * | text, | ||
int32_t | textLength, | ||
int32_t * | parsePos, | ||
UChar * | currency, | ||
UErrorCode * | status | ||
) |
Parse a string into a double and a currency using a UNumberFormat.
The string will be parsed according to the UNumberFormat's locale.
fmt | the formatter to use |
text | the text to parse |
textLength | the length of text, or -1 if null-terminated |
parsePos | a pointer to an offset index into text at which to begin parsing. On output, *parsePos will point after the last parsed character. This parameter may be NULL, in which case parsing begins at offset 0. |
currency | a pointer to the buffer to receive the parsed null- terminated currency. This buffer must have a capacity of at least 4 UChars. |
status | a pointer to an input-output UErrorCode |
U_CAPI int64_t unum_parseInt64 | ( | const UNumberFormat * | fmt, |
const UChar * | text, | ||
int32_t | textLength, | ||
int32_t * | parsePos, | ||
UErrorCode * | status | ||
) |
Parse a string into an int64 using a UNumberFormat.
The string will be parsed according to the UNumberFormat's locale. Note: parsing is not supported for styles UNUM_DECIMAL_COMPACT_SHORT and UNUM_DECIMAL_COMPACT_LONG.
fmt | The formatter to use. |
text | The text to parse. |
textLength | The length of text, or -1 if null-terminated. |
parsePos | If not NULL, on input a pointer to an integer specifying the offset at which to begin parsing. If not NULL, on output the offset at which parsing ended. |
status | A pointer to an UErrorCode to receive any errors |
U_CAPI UFormattable * unum_parseToUFormattable | ( | const UNumberFormat * | fmt, |
UFormattable * | result, | ||
const UChar * | text, | ||
int32_t | textLength, | ||
int32_t * | parsePos, | ||
UErrorCode * | status | ||
) |
Parse a UChar string into a UFormattable.
Example code:
Note: parsing is not supported for styles UNUM_DECIMAL_COMPACT_SHORT and UNUM_DECIMAL_COMPACT_LONG.
fmt | the formatter to use |
result | the UFormattable to hold the result. If NULL, a new UFormattable will be allocated (which the caller must close with ufmt_close). |
text | the text to parse |
textLength | the length of text, or -1 if null-terminated |
parsePos | a pointer to an offset index into text at which to begin parsing. On output, *parsePos will point after the last parsed character. This parameter may be NULL in which case parsing begins at offset 0. |
status | a pointer to an input-output UErrorCode |
U_CAPI void unum_setAttribute | ( | UNumberFormat * | fmt, |
UNumberFormatAttribute | attr, | ||
int32_t | newValue | ||
) |
Set a numeric attribute associated with a UNumberFormat.
An example of a numeric attribute is the number of integer digits a formatter will produce. If the formatter does not understand the attribute, the call is ignored. Rule-based formatters only understand the lenient-parse attribute. The caller can use unum_hasAttribute() to find out if the formatter supports the attribute.
fmt | The formatter to set. |
attr | The attribute to set; one of UNUM_PARSE_INT_ONLY, UNUM_GROUPING_USED, UNUM_DECIMAL_ALWAYS_SHOWN, UNUM_MAX_INTEGER_DIGITS, UNUM_MIN_INTEGER_DIGITS, UNUM_INTEGER_DIGITS, UNUM_MAX_FRACTION_DIGITS, UNUM_MIN_FRACTION_DIGITS, UNUM_FRACTION_DIGITS, UNUM_MULTIPLIER, UNUM_GROUPING_SIZE, UNUM_ROUNDING_MODE, UNUM_FORMAT_WIDTH, UNUM_PADDING_POSITION, UNUM_SECONDARY_GROUPING_SIZE, UNUM_LENIENT_PARSE, UNUM_SCALE, UNUM_MINIMUM_GROUPING_DIGITS. |
newValue | The new value of attr. |
U_CAPI void unum_setContext | ( | UNumberFormat * | fmt, |
UDisplayContext | value, | ||
UErrorCode * | status | ||
) |
Set a particular UDisplayContext value in the formatter, such as UDISPCTX_CAPITALIZATION_FOR_STANDALONE.
fmt | The formatter for which to set a UDisplayContext value. |
value | The UDisplayContext value to set. |
status | A pointer to an UErrorCode to receive any errors |
U_CAPI void unum_setDoubleAttribute | ( | UNumberFormat * | fmt, |
UNumberFormatAttribute | attr, | ||
double | newValue | ||
) |
Set a numeric attribute associated with a UNumberFormat.
An example of a numeric attribute is the number of integer digits a formatter will produce. If the formatter does not understand the attribute, this call is ignored. The caller can use unum_hasAttribute() to tell in advance whether the formatter understands the attribute.
fmt | The formatter to set. |
attr | The attribute to set; e.g. UNUM_ROUNDING_INCREMENT. |
newValue | The new value of attr. |
U_CAPI void unum_setSymbol | ( | UNumberFormat * | fmt, |
UNumberFormatSymbol | symbol, | ||
const UChar * | value, | ||
int32_t | length, | ||
UErrorCode * | status | ||
) |
Set a symbol associated with a UNumberFormat.
A UNumberFormat uses symbols to represent the special locale-dependent characters in a number, for example the percent sign. This API is not supported for rule-based formatters.
fmt | The formatter to set. |
symbol | The UNumberFormatSymbol constant for the symbol to set |
value | The string to set the symbol to |
length | The length of the string, or -1 for a zero-terminated string |
status | A pointer to an UErrorCode to receive any errors. |
U_CAPI void unum_setTextAttribute | ( | UNumberFormat * | fmt, |
UNumberFormatTextAttribute | tag, | ||
const UChar * | newValue, | ||
int32_t | newValueLength, | ||
UErrorCode * | status | ||
) |
Set a text attribute associated with a UNumberFormat.
An example of a text attribute is the suffix for positive numbers. Rule-based formatters only understand UNUM_DEFAULT_RULESET.
fmt | The formatter to set. |
tag | The attribute to set; one of UNUM_POSITIVE_PREFIX, UNUM_POSITIVE_SUFFIX, UNUM_NEGATIVE_PREFIX, UNUM_NEGATIVE_SUFFIX, UNUM_PADDING_CHARACTER, UNUM_CURRENCY_CODE, or UNUM_DEFAULT_RULESET. |
newValue | The new value of attr. |
newValueLength | The length of newValue, or -1 if null-terminated. |
status | A pointer to an UErrorCode to receive any errors |
U_CAPI int32_t unum_toPattern | ( | const UNumberFormat * | fmt, |
UBool | isPatternLocalized, | ||
UChar * | result, | ||
int32_t | resultLength, | ||
UErrorCode * | status | ||
) |
Extract the pattern from a UNumberFormat.
The pattern will follow the DecimalFormat pattern syntax.
fmt | The formatter to query. |
isPatternLocalized | true if the pattern should be localized, false otherwise. This is ignored if the formatter is a rule-based formatter. |
result | A pointer to a buffer to receive the pattern. |
resultLength | The maximum size of result. |
status | A pointer to an input-output UErrorCode. |