nfrs.h (3754B)
1 // © 2016 and later: Unicode, Inc. and others. 2 // License & terms of use: http://www.unicode.org/copyright.html 3 /* 4 ****************************************************************************** 5 * Copyright (C) 1997-2015, International Business Machines 6 * Corporation and others. All Rights Reserved. 7 ****************************************************************************** 8 * file name: nfrs.h 9 * encoding: UTF-8 10 * tab size: 8 (not used) 11 * indentation:4 12 * 13 * Modification history 14 * Date Name Comments 15 * 10/11/2001 Doug Ported from ICU4J 16 */ 17 18 #ifndef NFRS_H 19 #define NFRS_H 20 21 #include "unicode/uobject.h" 22 #include "unicode/rbnf.h" 23 24 #if U_HAVE_RBNF 25 26 #include "unicode/utypes.h" 27 #include "unicode/umisc.h" 28 29 #include "nfrlist.h" 30 31 U_NAMESPACE_BEGIN 32 33 class NFRuleSet : public UMemory { 34 public: 35 NFRuleSet(RuleBasedNumberFormat *owner, UnicodeString* descriptions, int32_t index, UErrorCode& status); 36 void parseRules(UnicodeString& rules, UErrorCode& status); 37 void setNonNumericalRule(NFRule *rule); 38 void setBestFractionRule(int32_t originalIndex, NFRule *newRule, UBool rememberRule); 39 void makeIntoFractionRuleSet() { fIsFractionRuleSet = true; } 40 41 ~NFRuleSet(); 42 43 bool operator==(const NFRuleSet& rhs) const; 44 bool operator!=(const NFRuleSet& rhs) const { return !operator==(rhs); } 45 46 UBool isPublic() const { return fIsPublic; } 47 48 UBool isParseable() const { return fIsParseable; } 49 50 UBool isFractionRuleSet() const { return fIsFractionRuleSet; } 51 52 void getName(UnicodeString& result) const { result.setTo(name); } 53 UBool isNamed(const UnicodeString& _name) const { return this->name == _name; } 54 55 void format(int64_t number, UnicodeString& toAppendTo, int32_t pos, int32_t recursionCount, UErrorCode& status) const; 56 void format(double number, UnicodeString& toAppendTo, int32_t pos, int32_t recursionCount, UErrorCode& status) const; 57 58 UBool parse(const UnicodeString& text, ParsePosition& pos, double upperBound, uint32_t nonNumericalExecutedRuleMask, int32_t recursionCount, Formattable& result) const; 59 60 void appendRules(UnicodeString& result) const; // toString 61 62 void setDecimalFormatSymbols(const DecimalFormatSymbols &newSymbols, UErrorCode& status); 63 64 const RuleBasedNumberFormat *getOwner() const { return owner; } 65 private: 66 const NFRule * findNormalRule(int64_t number) const; 67 const NFRule * findDoubleRule(double number) const; 68 const NFRule * findFractionRuleSetRule(double number) const; 69 70 friend class NFSubstitution; 71 72 private: 73 UnicodeString name; 74 NFRuleList rules; 75 NFRule *nonNumericalRules[6]; 76 RuleBasedNumberFormat *owner; 77 NFRuleList fractionRules; 78 UBool fIsFractionRuleSet; 79 UBool fIsPublic; 80 UBool fIsParseable; 81 82 NFRuleSet(const NFRuleSet &other); // forbid copying of this class 83 NFRuleSet &operator=(const NFRuleSet &other); // forbid copying of this class 84 }; 85 86 // utilities from old llong.h 87 // convert mantissa portion of double to int64 88 int64_t util64_fromDouble(double d); 89 90 // raise radix to the power exponent, only non-negative exponents 91 // Arithmetic is performed in unsigned space since overflow in 92 // signed space is undefined behavior. 93 uint64_t util64_pow(uint32_t radix, uint16_t exponent); 94 95 // convert n to digit string in buffer, return length of string 96 uint32_t util64_tou(int64_t n, char16_t* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = false); 97 98 #ifdef RBNF_DEBUG 99 int64_t util64_utoi(const char16_t* str, uint32_t radix = 10); 100 uint32_t util64_toa(int64_t n, char* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = false); 101 int64_t util64_atoi(const char* str, uint32_t radix); 102 #endif 103 104 105 U_NAMESPACE_END 106 107 /* U_HAVE_RBNF */ 108 #endif 109 110 // NFRS_H 111 #endif