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i_I|+ ? // © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 1997-2015, International Business Machines Corporation and others.
* All Rights Reserved.
*******************************************************************************
*/
#ifndef RBNF_H
#define RBNF_H
#include "unicode/utypes.h"
#if U_SHOW_CPLUSPLUS_API
/**
* \file
* \brief C++ API: Rule Based Number Format
*/
/**
* \def U_HAVE_RBNF
* This will be 0 if RBNF support is not included in ICU
* and 1 if it is.
*
* @stable ICU 2.4
*/
#if UCONFIG_NO_FORMATTING
#define U_HAVE_RBNF 0
#else
#define U_HAVE_RBNF 1
#include "unicode/dcfmtsym.h"
#include "unicode/fmtable.h"
#include "unicode/locid.h"
#include "unicode/numfmt.h"
#include "unicode/unistr.h"
#include "unicode/strenum.h"
#include "unicode/brkiter.h"
#include "unicode/upluralrules.h"
U_NAMESPACE_BEGIN
class NFRule;
class NFRuleSet;
class LocalizationInfo;
class PluralFormat;
class RuleBasedCollator;
/**
* Tags for the predefined rulesets.
*
* @stable ICU 2.2
*/
enum URBNFRuleSetTag {
URBNF_SPELLOUT,
URBNF_ORDINAL,
URBNF_DURATION,
URBNF_NUMBERING_SYSTEM,
#ifndef U_HIDE_DEPRECATED_API
/**
* One more than the highest normal URBNFRuleSetTag value.
* @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
*/
URBNF_COUNT
#endif // U_HIDE_DEPRECATED_API
};
/**
* The RuleBasedNumberFormat class formats numbers according to a set of rules. This number formatter is
* typically used for spelling out numeric values in words (e.g., 25,3476 as
* "twenty-five thousand three hundred seventy-six" or "vingt-cinq mille trois
* cents soixante-seize" or
* "fünfundzwanzigtausenddreihundertsechsundsiebzig"), but can also be used for
* other complicated formatting tasks, such as formatting a number of seconds as hours,
* minutes and seconds (e.g., 3,730 as "1:02:10").
*
* The resources contain three predefined formatters for each locale: spellout, which
* spells out a value in words (123 is "one hundred twenty-three"); ordinal, which
* appends an ordinal suffix to the end of a numeral (123 is "123rd"); and
* duration, which shows a duration in seconds as hours, minutes, and seconds (123 is
* "2:03"). The client can also define more specialized RuleBasedNumberFormats
* by supplying programmer-defined rule sets.
*
* The behavior of a RuleBasedNumberFormat is specified by a textual description
* that is either passed to the constructor as a String or loaded from a resource
* bundle. In its simplest form, the description consists of a semicolon-delimited list of rules.
* Each rule has a string of output text and a value or range of values it is applicable to.
* In a typical spellout rule set, the first twenty rules are the words for the numbers from
* 0 to 19:
*
* zero; one; two; three; four; five; six; seven; eight; nine;
* ten; eleven; twelve; thirteen; fourteen; fifteen; sixteen; seventeen; eighteen; nineteen;
*
* For larger numbers, we can use the preceding set of rules to format the ones place, and
* we only have to supply the words for the multiples of 10:
*
* 20: twenty[->>];
* 30: thirty[->>];
* 40: forty[->>];
* 50: fifty[->>];
* 60: sixty[->>];
* 70: seventy[->>];
* 80: eighty[->>];
* 90: ninety[->>];
*
* In these rules, the base value is spelled out explicitly and set off from the
* rule's output text with a c