FM / unicode

/usr/include/unicode

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basictz.h	8913	0644	edit dl rm
bms.h	8664	0644	edit dl rm
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format.h	12083	0644	edit dl rm
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measure.h	3321	0644	edit dl rm
msgfmt.h	39435	0644	edit dl rm
normlzr.h	30337	0644	edit dl rm
numfmt.h	33987	0644	edit dl rm
numsys.h	5004	0644	edit dl rm
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parsepos.h	5468	0644	edit dl rm
platform.h	9961	0644	edit dl rm
plurfmt.h	23079	0644	edit dl rm
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pwin32.h	8668	0644	edit dl rm
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smpdtfmt.h	48325	0644	edit dl rm
sortkey.h	11111	0644	edit dl rm
std_string.h	1769	0644	edit dl rm
strenum.h	9888	0644	edit dl rm
stringpiece.h	5484	0644	edit dl rm
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timezone.h	34584	0644	edit dl rm
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translit.h	54780	0644	edit dl rm
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ubidi.h	83092	0644	edit dl rm
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ucal.h	40177	0644	edit dl rm
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uchar.h	111062	0644	edit dl rm
uchriter.h	13132	0644	edit dl rm
uclean.h	11855	0644	edit dl rm
ucnv.h	83111	0644	edit dl rm
ucnvsel.h	5630	0644	edit dl rm
ucnv_cb.h	6635	0644	edit dl rm
ucnv_err.h	21375	0644	edit dl rm
ucol.h	48826	0644	edit dl rm
ucoleitr.h	12356	0644	edit dl rm
uconfig.h	6035	0644	edit dl rm
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uidna.h	15918	0644	edit dl rm
uintrnal.h	15752	0644	edit dl rm
uiter.h	23234	0644	edit dl rm
uloc.h	44548	0644	edit dl rm
ulocdata.h	9739	0644	edit dl rm
umachine.h	11360	0644	edit dl rm
umisc.h	1255	0644	edit dl rm
umsg.h	26076	0644	edit dl rm
unifilt.h	3770	0644	edit dl rm
unifunct.h	3966	0644	edit dl rm
unimatch.h	6071	0644	edit dl rm
unirepl.h	3290	0644	edit dl rm
uniset.h	61771	0644	edit dl rm
unistr.h	161321	0644	edit dl rm
unorm.h	23621	0644	edit dl rm
unum.h	32145	0644	edit dl rm
uobject.h	11393	0644	edit dl rm
uobslete.h	852	0644	edit dl rm
uregex.h	43948	0644	edit dl rm
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ustdio.h	35333	0644	edit dl rm
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usystem.h	1925	0644	edit dl rm
utext.h	58394	0644	edit dl rm
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uversion.h	10902	0644	edit dl rm
vtzone.h	20048	0644	edit dl rm

Edit: /usr/include/unicode/unum.h (32145B)

/*
*******************************************************************************
* Copyright (C) 1997-2009, International Business Machines Corporation and others.
* All Rights Reserved.
* Modification History:
*
*   Date        Name        Description
*   06/24/99    helena      Integrated Alan's NF enhancements and Java2 bug fixes
*******************************************************************************
*/

#ifndef _UNUM
#define _UNUM

#include "unicode/utypes.h"

#if !UCONFIG_NO_FORMATTING

#include "unicode/uloc.h"
#include "unicode/umisc.h"
#include "unicode/parseerr.h"
/**
 * \file
 * \brief C API: NumberFormat
 *
 * <h2> Number Format C API </h2>
 *
 * 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.
 * <P>
 * 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.
 * <P>
 * To format a number for the current Locale, use one of the static
 * factory methods:
 * <pre>
 * \code
 *    UChar myString[20];
 *    double myNumber = 7.0;
 *    UErrorCode status = U_ZERO_ERROR;
 *    UNumberFormat* nf = unum_open(UNUM_DEFAULT, NULL, -1, NULL, NULL, &status);
 *    unum_formatDouble(nf, myNumber, myString, 20, NULL, &status);
 *    printf(" Example 1: %s\n", austrdup(myString) ); //austrdup( a function used to convert UChar* to char*)
 * \endcode
 * </pre>
 * 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.
 * <pre>
 * \code
 * 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;
 * UChar* result = NULL;
 *
 * nf = unum_open(UNUM_DEFAULT, NULL, -1, NULL, NULL, &status);
 * 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;
 *       result=(UChar*)malloc(sizeof(UChar) * resultlength);
 *       unum_format(nf, a[i], result, resultlength, &pos, &status);
 *    }
 *    printf( " Example 2: %s\n", austrdup(result));
 *    free(result);
 * }
 * \endcode
 * </pre>
 * To format a number for a different Locale, specify it in the
 * call to unum_open().
 * <pre>
 * \code
 *     UNumberFormat* nf = unum_open(UNUM_DEFAULT, NULL, -1, "fr_FR", NULL, &success)
 * \endcode
 * </pre>
 * You can use a NumberFormat API unum_parse() to parse.
 * <pre>
 * \code
 *    UErrorCode status = U_ZERO_ERROR;
 *    int32_t pos=0;
 *    int32_t num;
 *    num = unum_parse(nf, str, u_strlen(str), &pos, &status);
 * \endcode
 * </pre>
 * 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%.
 * <P>
 * Use a pattern to create either a DecimalFormat or a RuleBasedNumberFormat
 * formatter.  The pattern must conform to the syntax defined for those
 * formatters.
 * <P>
 * You can also control the display of numbers with such function as
 * unum_getAttribues() and unum_setAtributes(), which let you set the
 * miminum fraction digits, grouping, etc.
 * @see UNumberFormatAttributes for more details
 * <P>
 * You can also use forms of the parse and format methods with
 * ParsePosition and UFieldPosition to allow you to:
 * <ul type=round>
 *   <li>(a) progressively parse through pieces of a string.
 *   <li>(b) align the decimal point and other areas.
 * </ul>
 * <p>
 * It is also possible to change or set the symbols used for a particular
 * locale like the currency symbol, the grouping seperator , monetary seperator
 * etc by making use of functions unum_setSymbols() and unum_getSymbols().
 */

/** A number formatter.
 *  For usage in C programs.
 *  @stable ICU 2.0
 */
typedef void* UNumberFormat;

/** The possible number format styles. 
 *  @stable ICU 2.0
 */
typedef enum UNumberFormatStyle {
    /**
     * Decimal format defined by pattern 
     * @stable ICU 3.0
     */
    UNUM_PATTERN_DECIMAL=0,
    /** Decimal format */
    UNUM_DECIMAL=1,
    /** Currency format */
    UNUM_CURRENCY,
    /** Percent format */
    UNUM_PERCENT,
    /** Scientific format */
    UNUM_SCIENTIFIC,
    /** Spellout rule-based format */
    UNUM_SPELLOUT,
    /** 
     * Ordinal rule-based format 
     * @stable ICU 3.0
     */
    UNUM_ORDINAL,
    /** 
     * Duration rule-based format 
     * @stable ICU 3.0
     */
    UNUM_DURATION,
    /** 
     * Numbering system rule-based format 
     * @draft ICU 4.2
     */
    UNUM_NUMBERING_SYSTEM,
    /** 
     * Rule-based format defined by pattern 
     * @stable ICU 3.0
     */
    UNUM_PATTERN_RULEBASED,
    /** Default format */
    UNUM_DEFAULT = UNUM_DECIMAL,
    /** (Alias for UNUM_PATTERN_DECIMAL) */
    UNUM_IGNORE = UNUM_PATTERN_DECIMAL
} UNumberFormatStyle;

/** The possible number format rounding modes. 
 *  @stable ICU 2.0
 */
typedef enum UNumberFormatRoundingMode {
    UNUM_ROUND_CEILING,
    UNUM_ROUND_FLOOR,
    UNUM_ROUND_DOWN,
    UNUM_ROUND_UP,
    /**
     * Half-even rounding, misspelled name
     * @deprecated, ICU 3.8
     */
    UNUM_FOUND_HALFEVEN,
    UNUM_ROUND_HALFDOWN,
    UNUM_ROUND_HALFUP,
    /**
     * Half-even rounding
     * @stable, ICU 3.8
     */
    UNUM_ROUND_HALFEVEN = UNUM_FOUND_HALFEVEN
} UNumberFormatRoundingMode;

/** The possible number format pad positions. 
 *  @stable ICU 2.0
 */
typedef enum UNumberFormatPadPosition {
    UNUM_PAD_BEFORE_PREFIX,
    UNUM_PAD_AFTER_PREFIX,
    UNUM_PAD_BEFORE_SUFFIX,
    UNUM_PAD_AFTER_SUFFIX
} UNumberFormatPadPosition;

/**
 * Create and return a new UNumberFormat for formatting and parsing
 * numbers.  A UNumberFormat may be used to format numbers by calling
 * {@link #unum_format }, and to parse numbers by calling {@link #unum_parse }.
 * The caller must call {@link #unum_close } when done to release resources
 * used by this object.
 * @param style The type of number format to open: one of
 * UNUM_DECIMAL, UNUM_CURRENCY, UNUM_PERCENT, UNUM_SCIENTIFIC, UNUM_SPELLOUT,
 * 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.
 * @param pattern A pattern specifying the format to use. 
 * This parameter is ignored unless the style is
 * UNUM_PATTERN_DECIMAL or UNUM_PATTERN_RULEBASED.
 * @param patternLength The number of characters in the pattern, or -1
 * if null-terminated. This parameter is ignored unless the style is
 * UNUM_PATTERN.
 * @param locale A locale identifier to use to determine formatting
 * and parsing conventions, or NULL to use the default locale.
 * @param parseErr A pointer to a UParseError struct to receive the
 * details of any parsing errors, or NULL if no parsing error details
 * are desired.
 * @param status A pointer to an input-output UErrorCode.
 * @return A pointer to a newly created UNumberFormat, or NULL if an
 * error occurred.
 * @see unum_close
 * @see DecimalFormat
 * @stable ICU 2.0
 */
U_STABLE UNumberFormat* U_EXPORT2 
unum_open(  UNumberFormatStyle    style,
            const    UChar*    pattern,
            int32_t            patternLength,
            const    char*     locale,
            UParseError*       parseErr,
            UErrorCode*        status);

/**
* Close a UNumberFormat.
* Once closed, a UNumberFormat may no longer be used.
* @param fmt The formatter to close.
* @stable ICU 2.0
*/
U_STABLE void U_EXPORT2 
unum_close(UNumberFormat* fmt);

/**
 * Open a copy of a UNumberFormat.
 * This function performs a deep copy.
 * @param fmt The format to copy
 * @param status A pointer to an UErrorCode to receive any errors.
 * @return A pointer to a UNumberFormat identical to fmt.
 * @stable ICU 2.0
 */
U_STABLE UNumberFormat* U_EXPORT2 
unum_clone(const UNumberFormat *fmt,
       UErrorCode *status);

/**
* Format an integer using a UNumberFormat.
* The integer will be formatted according to the UNumberFormat's locale.
* @param fmt The formatter to use.
* @param number The number to format.
* @param result A pointer to a buffer to receive the formatted number.
* @param resultLength The maximum size of result.
* @param 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
* @param status A pointer to an UErrorCode to receive any errors
* @return The total buffer size needed; if greater than resultLength, the output was truncated.
* @see unum_formatInt64
* @see unum_formatDouble
* @see unum_parse
* @see unum_parseInt64
* @see unum_parseDouble
* @see UFieldPosition
* @stable ICU 2.0
*/
U_STABLE int32_t U_EXPORT2 
unum_format(    const    UNumberFormat*    fmt,
        int32_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.
* @param fmt The formatter to use.
* @param number The number to format.
* @param result A pointer to a buffer to receive the formatted number.
* @param resultLength The maximum size of result.
* @param 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
* @param status A pointer to an UErrorCode to receive any errors
* @return The total buffer size needed; if greater than resultLength, the output was truncated.
* @see unum_format
* @see unum_formatDouble
* @see unum_parse
* @see unum_parseInt64
* @see unum_parseDouble
* @see UFieldPosition
* @stable ICU 2.0
*/
U_STABLE int32_t U_EXPORT2 
unum_formatInt64(const UNumberFormat *fmt,
        int64_t         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.
* @param fmt The formatter to use.
* @param number The number to format.
* @param result A pointer to a buffer to receive the formatted number.
* @param resultLength The maximum size of result.
* @param 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
* @param status A pointer to an UErrorCode to receive any errors
* @return The total buffer size needed; if greater than resultLength, the output was truncated.
* @see unum_format
* @see unum_formatInt64
* @see unum_parse
* @see unum_parseInt64
* @see unum_parseDouble
* @see UFieldPosition
* @stable ICU 2.0
*/
U_STABLE int32_t U_EXPORT2 
unum_formatDouble(    const    UNumberFormat*  fmt,
            double          number,
            UChar*          result,
            int32_t         resultLength,
            UFieldPosition  *pos, /* 0 if ignore */
            UErrorCode*     status);

/**
 * Format a double currency amount using a UNumberFormat.
 * The double will be formatted according to the UNumberFormat's locale.
 * @param fmt the formatter to use
 * @param number the number to format
 * @param currency the 3-letter null-terminated ISO 4217 currency code
 * @param result a pointer to the buffer to receive the formatted number
 * @param resultLength the maximum number of UChars to write to result
 * @param 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.
 * @param status a pointer to an input-output UErrorCode
 * @return the total buffer size needed; if greater than resultLength,
 * the output was truncated.
 * @see unum_formatDouble
 * @see unum_parseDoubleCurrency
 * @see UFieldPosition
 * @stable ICU 3.0
 */
U_STABLE int32_t U_EXPORT2 
unum_formatDoubleCurrency(const UNumberFormat* fmt,
                          double number,
                          UChar* currency,
                          UChar* result,
                          int32_t resultLength,
                          UFieldPosition* pos, /* ignored if 0 */
                          UErrorCode* status);

/**
* Parse a string into an integer using a UNumberFormat.
* The string will be parsed according to the UNumberFormat's locale.
* @param fmt The formatter to use.
* @param text The text to parse.
* @param textLength The length of text, or -1 if null-terminated.
* @param parsePos If not 0, on input a pointer to an integer specifying the offset at which
* to begin parsing.  If not 0, on output the offset at which parsing ended.
* @param status A pointer to an UErrorCode to receive any errors
* @return The value of the parsed integer
* @see unum_parseInt64
* @see unum_parseDouble
* @see unum_format
* @see unum_formatInt64
* @see unum_formatDouble
* @stable ICU 2.0
*/
U_STABLE int32_t U_EXPORT2 
unum_parse(    const   UNumberFormat*  fmt,
        const   UChar*          text,
        int32_t         textLength,
        int32_t         *parsePos /* 0 = start */,
        UErrorCode      *status);

/**
* Parse a string into an int64 using a UNumberFormat.
* The string will be parsed according to the UNumberFormat's locale.
* @param fmt The formatter to use.
* @param text The text to parse.
* @param textLength The length of text, or -1 if null-terminated.
* @param parsePos If not 0, on input a pointer to an integer specifying the offset at which
* to begin parsing.  If not 0, on output the offset at which parsing ended.
* @param status A pointer to an UErrorCode to receive any errors
* @return The value of the parsed integer
* @see unum_parse
* @see unum_parseDouble
* @see unum_format
* @see unum_formatInt64
* @see unum_formatDouble
* @stable ICU 2.8
*/
U_STABLE int64_t U_EXPORT2 
unum_parseInt64(const UNumberFormat*  fmt,
        const UChar*  text,
        int32_t       textLength,
        int32_t       *parsePos /* 0 = start */,
        UErrorCode    *status);

/**
* Parse a string into a double using a UNumberFormat.
* The string will be parsed according to the UNumberFormat's locale.
* @param fmt The formatter to use.
* @param text The text to parse.
* @param textLength The length of text, or -1 if null-terminated.
* @param parsePos If not 0, on input a pointer to an integer specifying the offset at which
* to begin parsing.  If not 0, on output the offset at which parsing ended.
* @param status A pointer to an UErrorCode to receive any errors
* @return The value of the parsed double
* @see unum_parse
* @see unum_parseInt64
* @see unum_format
* @see unum_formatInt64
* @see unum_formatDouble
* @stable ICU 2.0
*/
U_STABLE double U_EXPORT2 
unum_parseDouble(    const   UNumberFormat*  fmt,
            const   UChar*          text,
            int32_t         textLength,
            int32_t         *parsePos /* 0 = start */,
            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.
 * @param fmt the formatter to use
 * @param text the text to parse
 * @param textLength the length of text, or -1 if null-terminated
 * @param 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 0, in which case parsing
 * begins at offset 0.
 * @param currency a pointer to the buffer to receive the parsed null-
 * terminated currency.  This buffer must have a capacity of at least
 * 4 UChars.
 * @param status a pointer to an input-output UErrorCode
 * @return the parsed double
 * @see unum_parseDouble
 * @see unum_formatDoubleCurrency
 * @stable ICU 3.0
 */
U_STABLE double U_EXPORT2
unum_parseDoubleCurrency(const UNumberFormat* fmt,
                         const UChar* text,
                         int32_t textLength,
                         int32_t* parsePos, /* 0 = start */
                         UChar* currency,
                         UErrorCode* status);

/**
 * Set the pattern used by a UNumberFormat.  This can only be used
 * on a DecimalFormat, other formats return U_ILLEGAL_ARGUMENT_ERROR
 * in the status.
 * @param format The formatter to set.
 * @param localized TRUE if the pattern is localized, FALSE otherwise.
 * @param pattern The new pattern
 * @param patternLength The length of pattern, or -1 if null-terminated.
 * @param parseError A pointer to UParseError to recieve information
 * about errors occurred during parsing, or NULL if no parse error
 * information is desired.
 * @param status A pointer to an input-output UErrorCode.
 * @see unum_toPattern
 * @see DecimalFormat
 * @stable ICU 2.0
 */
U_STABLE void U_EXPORT2 
unum_applyPattern(          UNumberFormat  *format,
                            UBool          localized,
                    const   UChar          *pattern,
                            int32_t         patternLength,
                            UParseError    *parseError,
                            UErrorCode     *status
                                    );

/**
* 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.
* @param localeIndex The index of the desired locale.
* @return A locale for which number formatting patterns are available, or 0 if none.
* @see unum_countAvailable
* @stable ICU 2.0
*/
U_STABLE const char* U_EXPORT2 
unum_getAvailable(int32_t localeIndex);

/**
* 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 {@link #unum_getAvailable }.
* @return The number of locales for which decimal formatting patterns are available.
* @see unum_getAvailable
* @stable ICU 2.0
*/
U_STABLE int32_t U_EXPORT2 
unum_countAvailable(void);

/** The possible UNumberFormat numeric attributes @stable ICU 2.0 */
typedef enum UNumberFormatAttribute {
  /** Parse integers only */
  UNUM_PARSE_INT_ONLY,
  /** Use grouping separator */
  UNUM_GROUPING_USED,
  /** Always show decimal point */
  UNUM_DECIMAL_ALWAYS_SHOWN,
  /** Maximum integer digits */
  UNUM_MAX_INTEGER_DIGITS,
  /** Minimum integer digits */
  UNUM_MIN_INTEGER_DIGITS,
  /** Integer digits */
  UNUM_INTEGER_DIGITS,
  /** Maximum fraction digits */
  UNUM_MAX_FRACTION_DIGITS,
  /** Minimum fraction digits */
  UNUM_MIN_FRACTION_DIGITS,
  /** Fraction digits */
  UNUM_FRACTION_DIGITS,
  /** Multiplier */
  UNUM_MULTIPLIER,
  /** Grouping size */
  UNUM_GROUPING_SIZE,
  /** Rounding Mode */
  UNUM_ROUNDING_MODE,
  /** Rounding increment */
  UNUM_ROUNDING_INCREMENT,
  /** The width to which the output of <code>format()</code> is padded. */
  UNUM_FORMAT_WIDTH,
  /** The position at which padding will take place. */
  UNUM_PADDING_POSITION,
  /** Secondary grouping size */
  UNUM_SECONDARY_GROUPING_SIZE,
  /** Use significant digits
   * @stable ICU 3.0 */
  UNUM_SIGNIFICANT_DIGITS_USED,
  /** Minimum significant digits
   * @stable ICU 3.0 */
  UNUM_MIN_SIGNIFICANT_DIGITS,
  /** Maximum significant digits
   * @stable ICU 3.0 */
  UNUM_MAX_SIGNIFICANT_DIGITS,
  /** Lenient parse mode used by rule-based formats.
   * @stable ICU 3.0
   */
  UNUM_LENIENT_PARSE
} UNumberFormatAttribute;

/**
* Get a numeric attribute associated with a UNumberFormat.
* An example of a numeric attribute is the number of integer digits a formatter will produce.
* @param fmt The formatter to query.
* @param 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.
* @return The value of attr.
* @see unum_setAttribute
* @see unum_getDoubleAttribute
* @see unum_setDoubleAttribute
* @see unum_getTextAttribute
* @see unum_setTextAttribute
* @stable ICU 2.0
*/
U_STABLE int32_t U_EXPORT2 
unum_getAttribute(const UNumberFormat*          fmt,
          UNumberFormatAttribute  attr);

/**
* 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.
* @param fmt The formatter to set.
* @param 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,
* or UNUM_LENIENT_PARSE.
* @param newValue The new value of attr.
* @see unum_getAttribute
* @see unum_getDoubleAttribute
* @see unum_setDoubleAttribute
* @see unum_getTextAttribute
* @see unum_setTextAttribute
* @stable ICU 2.0
*/
U_STABLE void U_EXPORT2 
unum_setAttribute(    UNumberFormat*          fmt,
            UNumberFormatAttribute  attr,
            int32_t                 newValue);

/**
* 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.
* @param fmt The formatter to query.
* @param attr The attribute to query; e.g. UNUM_ROUNDING_INCREMENT.
* @return The value of attr.
* @see unum_getAttribute
* @see unum_setAttribute
* @see unum_setDoubleAttribute
* @see unum_getTextAttribute
* @see unum_setTextAttribute
* @stable ICU 2.0
*/
U_STABLE double U_EXPORT2 
unum_getDoubleAttribute(const UNumberFormat*          fmt,
          UNumberFormatAttribute  attr);

/**
* 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.
* @param fmt The formatter to set.
* @param attr The attribute to set; e.g. UNUM_ROUNDING_INCREMENT.
* @param newValue The new value of attr.
* @see unum_getAttribute
* @see unum_setAttribute
* @see unum_getDoubleAttribute
* @see unum_getTextAttribute
* @see unum_setTextAttribute
* @stable ICU 2.0
*/
U_STABLE void U_EXPORT2 
unum_setDoubleAttribute(    UNumberFormat*          fmt,
            UNumberFormatAttribute  attr,
            double                 newValue);

/** The possible UNumberFormat text attributes @stable ICU 2.0*/
typedef enum UNumberFormatTextAttribute {
  /** Positive prefix */
  UNUM_POSITIVE_PREFIX,
  /** Positive suffix */
  UNUM_POSITIVE_SUFFIX,
  /** Negative prefix */
  UNUM_NEGATIVE_PREFIX,
  /** Negative suffix */
  UNUM_NEGATIVE_SUFFIX,
  /** The character used to pad to the format width. */
  UNUM_PADDING_CHARACTER,
  /** The ISO currency code */
  UNUM_CURRENCY_CODE,
  /**
   * The default rule set.  This is only available with rule-based formatters.
   * @stable ICU 3.0
   */
  UNUM_DEFAULT_RULESET,
  /**
   * 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).
   * @stable ICU 3.0
   */
  UNUM_PUBLIC_RULESETS
} UNumberFormatTextAttribute;

/**
* 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 attributre, U_UNSUPPORTED_ERROR is returned as the status.
* Rule-based formatters only understand UNUM_DEFAULT_RULESET and UNUM_PUBLIC_RULESETS.
* @param fmt The formatter to query.
* @param 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.
* @param result A pointer to a buffer to receive the attribute.
* @param resultLength The maximum size of result.
* @param status A pointer to an UErrorCode to receive any errors
* @return The total buffer size needed; if greater than resultLength, the output was truncated.
* @see unum_setTextAttribute
* @see unum_getAttribute
* @see unum_setAttribute
* @stable ICU 2.0
*/
U_STABLE int32_t U_EXPORT2 
unum_getTextAttribute(    const    UNumberFormat*                    fmt,
            UNumberFormatTextAttribute      tag,
            UChar*                            result,
            int32_t                            resultLength,
            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.
* @param fmt The formatter to set.
* @param 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.
* @param newValue The new value of attr.
* @param newValueLength The length of newValue, or -1 if null-terminated.
* @param status A pointer to an UErrorCode to receive any errors
* @see unum_getTextAttribute
* @see unum_getAttribute
* @see unum_setAttribute
* @stable ICU 2.0
*/
U_STABLE void U_EXPORT2 
unum_setTextAttribute(    UNumberFormat*                    fmt,
            UNumberFormatTextAttribute      tag,
            const    UChar*                            newValue,
            int32_t                            newValueLength,
            UErrorCode                        *status);

/**
 * Extract the pattern from a UNumberFormat.  The pattern will follow
 * the DecimalFormat pattern syntax.
 * @param fmt The formatter to query.
 * @param isPatternLocalized TRUE if the pattern should be localized,
 * FALSE otherwise.  This is ignored if the formatter is a rule-based
 * formatter.
 * @param result A pointer to a buffer to receive the pattern.
 * @param resultLength The maximum size of result.
 * @param status A pointer to an input-output UErrorCode.
 * @return The total buffer size needed; if greater than resultLength,
 * the output was truncated.
 * @see unum_applyPattern
 * @see DecimalFormat
 * @stable ICU 2.0
 */
U_STABLE int32_t U_EXPORT2 
unum_toPattern(    const    UNumberFormat*          fmt,
        UBool                  isPatternLocalized,
        UChar*                  result,
        int32_t                 resultLength,
        UErrorCode*             status);

/**
 * Constants for specifying a number format symbol.
 * @stable ICU 2.0
 */
typedef enum UNumberFormatSymbol {
  /** The decimal separator */
  UNUM_DECIMAL_SEPARATOR_SYMBOL = 0,
  /** The grouping separator */
  UNUM_GROUPING_SEPARATOR_SYMBOL = 1,
  /** The pattern separator */
  UNUM_PATTERN_SEPARATOR_SYMBOL = 2,
  /** The percent sign */
  UNUM_PERCENT_SYMBOL = 3,
  /** Zero*/
  UNUM_ZERO_DIGIT_SYMBOL = 4,
  /** Character representing a digit in the pattern */
  UNUM_DIGIT_SYMBOL = 5,
  /** The minus sign */
  UNUM_MINUS_SIGN_SYMBOL = 6,
  /** The plus sign */
  UNUM_PLUS_SIGN_SYMBOL = 7,
  /** The currency symbol */
  UNUM_CURRENCY_SYMBOL = 8,
  /** The international currency symbol */
  UNUM_INTL_CURRENCY_SYMBOL = 9,
  /** The monetary separator */
  UNUM_MONETARY_SEPARATOR_SYMBOL = 10,
  /** The exponential symbol */
  UNUM_EXPONENTIAL_SYMBOL = 11,
  /** Per mill symbol */
  UNUM_PERMILL_SYMBOL = 12,
  /** Escape padding character */
  UNUM_PAD_ESCAPE_SYMBOL = 13,
  /** Infinity symbol */
  UNUM_INFINITY_SYMBOL = 14,
  /** Nan symbol */
  UNUM_NAN_SYMBOL = 15,
  /** Significant digit symbol
   * @stable ICU 3.0 */
  UNUM_SIGNIFICANT_DIGIT_SYMBOL = 16,
  /** The monetary grouping separator 
   * @stable ICU 3.6
   */
  UNUM_MONETARY_GROUPING_SEPARATOR_SYMBOL = 17,  
  /** count symbol constants */
  UNUM_FORMAT_SYMBOL_COUNT = 18
} UNumberFormatSymbol;

/**
* 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.
* @param fmt The formatter to query.
* @param symbol The UNumberFormatSymbol constant for the symbol to get
* @param buffer The string buffer that will receive the symbol string;
*               if it is NULL, then only the length of the symbol is returned
* @param size The size of the string buffer
* @param status A pointer to an UErrorCode to receive any errors
* @return The length of the symbol; the buffer is not modified if
*         <code>length&gt;=size</code>
* @see unum_setSymbol
* @stable ICU 2.0
*/
U_STABLE int32_t U_EXPORT2
unum_getSymbol(const UNumberFormat *fmt,
               UNumberFormatSymbol symbol,
               UChar *buffer,
               int32_t size,
               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.
* @param fmt The formatter to set.
* @param symbol The UNumberFormatSymbol constant for the symbol to set
* @param value The string to set the symbol to
* @param length The length of the string, or -1 for a zero-terminated string
* @param status A pointer to an UErrorCode to receive any errors.
* @see unum_getSymbol
* @stable ICU 2.0
*/
U_STABLE void U_EXPORT2
unum_setSymbol(UNumberFormat *fmt,
               UNumberFormatSymbol symbol,
               const UChar *value,
               int32_t length,
               UErrorCode *status);

/**
 * Get the locale for this number format object.
 * You can choose between valid and actual locale.
 * @param fmt The formatter to get the locale from
 * @param type type of the locale we're looking for (valid or actual) 
 * @param status error code for the operation
 * @return the locale name
 * @stable ICU 2.8
 */
U_STABLE const char* U_EXPORT2
unum_getLocaleByType(const UNumberFormat *fmt,
                     ULocDataLocaleType type,
                     UErrorCode* status);

#endif /* #if !UCONFIG_NO_FORMATTING */

#endif

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