112 lines
3.6 KiB
C++
112 lines
3.6 KiB
C++
// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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******************************************************************************
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* Copyright (C) 1997-2015, International Business Machines
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* Corporation and others. All Rights Reserved.
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******************************************************************************
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* file name: nfrs.h
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* encoding: UTF-8
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* tab size: 8 (not used)
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* indentation:4
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*
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* Modification history
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* Date Name Comments
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* 10/11/2001 Doug Ported from ICU4J
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*/
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#ifndef NFRS_H
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#define NFRS_H
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#include "unicode/uobject.h"
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#include "unicode/rbnf.h"
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#if U_HAVE_RBNF
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#include "unicode/utypes.h"
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#include "unicode/umisc.h"
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#include "nfrlist.h"
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U_NAMESPACE_BEGIN
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class NFRuleSet : public UMemory {
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public:
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NFRuleSet(RuleBasedNumberFormat *owner, UnicodeString* descriptions, int32_t index, UErrorCode& status);
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void parseRules(UnicodeString& rules, UErrorCode& status);
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void setNonNumericalRule(NFRule *rule);
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void setBestFractionRule(int32_t originalIndex, NFRule *newRule, UBool rememberRule);
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void makeIntoFractionRuleSet() { fIsFractionRuleSet = true; }
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~NFRuleSet();
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bool operator==(const NFRuleSet& rhs) const;
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bool operator!=(const NFRuleSet& rhs) const { return !operator==(rhs); }
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UBool isPublic() const { return fIsPublic; }
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UBool isParseable() const { return fIsParseable; }
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UBool isFractionRuleSet() const { return fIsFractionRuleSet; }
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void getName(UnicodeString& result) const { result.setTo(name); }
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UBool isNamed(const UnicodeString& _name) const { return this->name == _name; }
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void format(int64_t number, UnicodeString& toAppendTo, int32_t pos, int32_t recursionCount, UErrorCode& status) const;
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void format(double number, UnicodeString& toAppendTo, int32_t pos, int32_t recursionCount, UErrorCode& status) const;
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UBool parse(const UnicodeString& text, ParsePosition& pos, double upperBound, uint32_t nonNumericalExecutedRuleMask, Formattable& result) const;
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void appendRules(UnicodeString& result) const; // toString
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void setDecimalFormatSymbols(const DecimalFormatSymbols &newSymbols, UErrorCode& status);
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const RuleBasedNumberFormat *getOwner() const { return owner; }
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private:
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const NFRule * findNormalRule(int64_t number) const;
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const NFRule * findDoubleRule(double number) const;
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const NFRule * findFractionRuleSetRule(double number) const;
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friend class NFSubstitution;
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private:
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UnicodeString name;
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NFRuleList rules;
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NFRule *nonNumericalRules[6];
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RuleBasedNumberFormat *owner;
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NFRuleList fractionRules;
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UBool fIsFractionRuleSet;
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UBool fIsPublic;
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UBool fIsParseable;
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NFRuleSet(const NFRuleSet &other); // forbid copying of this class
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NFRuleSet &operator=(const NFRuleSet &other); // forbid copying of this class
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};
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// utilities from old llong.h
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// convert mantissa portion of double to int64
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int64_t util64_fromDouble(double d);
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// raise radix to the power exponent, only non-negative exponents
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// Arithmetic is performed in unsigned space since overflow in
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// signed space is undefined behavior.
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uint64_t util64_pow(uint32_t radix, uint16_t exponent);
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// convert n to digit string in buffer, return length of string
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uint32_t util64_tou(int64_t n, UChar* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = false);
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#ifdef RBNF_DEBUG
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int64_t util64_utoi(const UChar* str, uint32_t radix = 10);
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uint32_t util64_toa(int64_t n, char* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = false);
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int64_t util64_atoi(const char* str, uint32_t radix);
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#endif
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U_NAMESPACE_END
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/* U_HAVE_RBNF */
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#endif
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// NFRS_H
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#endif
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