scuffed-code/icu4c/source/i18n/nfrs.h
2002-09-20 01:54:48 +00:00

114 lines
3.2 KiB
C++

/*
******************************************************************************
* Copyright (C) 1997-2001, International Business Machines
* Corporation and others. All Rights Reserved.
******************************************************************************
* file name: nfrs.h
* encoding: US-ASCII
* tab size: 8 (not used)
* indentation:4
*
* Modification history
* Date Name Comments
* 10/11/2001 Doug Ported from ICU4J
*/
#ifndef NFRS_H
#define NFRS_H
#include "unicode/uobject.h"
#include "unicode/rbnf.h"
#if U_HAVE_RBNF
#include "unicode/utypes.h"
#include "unicode/umisc.h"
#include "nfrlist.h"
U_NAMESPACE_BEGIN
class NFRuleSet : public UObject {
public:
NFRuleSet(UnicodeString* descriptions, int32_t index, UErrorCode& status);
void parseRules(UnicodeString& rules, const RuleBasedNumberFormat* owner, UErrorCode& status);
void makeIntoFractionRuleSet() { fIsFractionRuleSet = TRUE; }
~NFRuleSet();
UBool operator==(const NFRuleSet& rhs) const;
UBool operator!=(const NFRuleSet& rhs) const { return !operator==(rhs); }
UBool isPublic() const { return fIsPublic; }
UBool isFractionRuleSet() const { return fIsFractionRuleSet; }
void getName(UnicodeString& result) const { result.setTo(name); }
UBool isNamed(const UnicodeString& _name) const { return this->name == _name; }
void format(int64_t number, UnicodeString& toAppendTo, int32_t pos) const;
void format(double number, UnicodeString& toAppendTo, int32_t pos) const;
UBool parse(const UnicodeString& text, ParsePosition& pos, double upperBound, Formattable& result) const;
void appendRules(UnicodeString& result) const; // toString
/**
* ICU "poor man's RTTI", returns a UClassID for the actual class.
*
* @draft ICU 2.2
*/
virtual inline UClassID getDynamicClassID() const { return getStaticClassID(); }
/**
* ICU "poor man's RTTI", returns a UClassID for this class.
*
* @draft ICU 2.2
*/
static inline UClassID getStaticClassID() { return (UClassID)&fgClassID; }
private:
NFRule * findNormalRule(int64_t number) const;
NFRule * findDoubleRule(double number) const;
NFRule * findFractionRuleSetRule(double number) const;
private:
UnicodeString name;
NFRuleList rules;
NFRule *negativeNumberRule;
NFRule *fractionRules[3];
UBool fIsFractionRuleSet;
UBool fIsPublic;
/**
* The address of this static class variable serves as this class's ID
* for ICU "poor man's RTTI".
*/
static const char fgClassID;
};
// utilities from old llong.h
// convert mantissa portion of double to int64
int64_t util64_fromDouble(double d);
// raise radix to the power exponent, only non-negative exponents
int64_t util64_pow(int32_t radix, uint32_t exponent);
// convert n to digit string in buffer, return length of string
uint32_t util64_tou(int64_t n, UChar* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = FALSE);
int64_t util64_utoi(const UChar* str, uint32_t radix = 10);
#ifdef RBNF_DEBUG
uint32_t util64_toa(int64_t n, char* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = FALSE);
int64_t util64_atoi(const char* str, uint32_t radix);
#endif
U_NAMESPACE_END
/* U_HAVE_RBNF */
#endif
// NFRS_H
#endif