Home | History | Annotate | Download | only in i18n
      1 /*
      2 ******************************************************************************
      3 *   Copyright (C) 1997-2015, International Business Machines
      4 *   Corporation and others.  All Rights Reserved.
      5 ******************************************************************************
      6 *   file name:  nfrs.h
      7 *   encoding:   US-ASCII
      8 *   tab size:   8 (not used)
      9 *   indentation:4
     10 *
     11 * Modification history
     12 * Date        Name      Comments
     13 * 10/11/2001  Doug      Ported from ICU4J
     14 */
     15 
     16 #ifndef NFRS_H
     17 #define NFRS_H
     18 
     19 #include "unicode/uobject.h"
     20 #include "unicode/rbnf.h"
     21 
     22 #if U_HAVE_RBNF
     23 
     24 #include "unicode/utypes.h"
     25 #include "unicode/umisc.h"
     26 
     27 #include "nfrlist.h"
     28 
     29 U_NAMESPACE_BEGIN
     30 
     31 class NFRuleSet : public UMemory {
     32 public:
     33     NFRuleSet(RuleBasedNumberFormat *owner, UnicodeString* descriptions, int32_t index, UErrorCode& status);
     34     void parseRules(UnicodeString& rules, UErrorCode& status);
     35     void setNonNumericalRule(NFRule *rule);
     36     void setBestFractionRule(int32_t originalIndex, NFRule *newRule, UBool rememberRule);
     37     void makeIntoFractionRuleSet() { fIsFractionRuleSet = TRUE; }
     38 
     39     ~NFRuleSet();
     40 
     41     UBool operator==(const NFRuleSet& rhs) const;
     42     UBool operator!=(const NFRuleSet& rhs) const { return !operator==(rhs); }
     43 
     44     UBool isPublic() const { return fIsPublic; }
     45 
     46     UBool isParseable() const { return fIsParseable; }
     47 
     48     UBool isFractionRuleSet() const { return fIsFractionRuleSet; }
     49 
     50     void  getName(UnicodeString& result) const { result.setTo(name); }
     51     UBool isNamed(const UnicodeString& _name) const { return this->name == _name; }
     52 
     53     void  format(int64_t number, UnicodeString& toAppendTo, int32_t pos, int32_t recursionCount, UErrorCode& status) const;
     54     void  format(double number, UnicodeString& toAppendTo, int32_t pos, int32_t recursionCount, UErrorCode& status) const;
     55 
     56     UBool parse(const UnicodeString& text, ParsePosition& pos, double upperBound, Formattable& result) const;
     57 
     58     void appendRules(UnicodeString& result) const; // toString
     59 
     60     void setDecimalFormatSymbols(const DecimalFormatSymbols &newSymbols, UErrorCode& status);
     61 
     62     const RuleBasedNumberFormat *getOwner() const { return owner; }
     63 private:
     64     const NFRule * findNormalRule(int64_t number) const;
     65     const NFRule * findDoubleRule(double number) const;
     66     const NFRule * findFractionRuleSetRule(double number) const;
     67 
     68     friend class NFSubstitution;
     69 
     70 private:
     71     UnicodeString name;
     72     NFRuleList rules;
     73     NFRule *nonNumericalRules[6];
     74     RuleBasedNumberFormat *owner;
     75     NFRuleList fractionRules;
     76     UBool fIsFractionRuleSet;
     77     UBool fIsPublic;
     78     UBool fIsParseable;
     79 
     80     NFRuleSet(const NFRuleSet &other); // forbid copying of this class
     81     NFRuleSet &operator=(const NFRuleSet &other); // forbid copying of this class
     82 };
     83 
     84 // utilities from old llong.h
     85 // convert mantissa portion of double to int64
     86 int64_t util64_fromDouble(double d);
     87 
     88 // raise radix to the power exponent, only non-negative exponents
     89 int64_t util64_pow(int32_t radix, uint32_t exponent);
     90 
     91 // convert n to digit string in buffer, return length of string
     92 uint32_t util64_tou(int64_t n, UChar* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = FALSE);
     93 
     94 #ifdef RBNF_DEBUG
     95 int64_t util64_utoi(const UChar* str, uint32_t radix = 10);
     96 uint32_t util64_toa(int64_t n, char* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = FALSE);
     97 int64_t util64_atoi(const char* str, uint32_t radix);
     98 #endif
     99 
    100 
    101 U_NAMESPACE_END
    102 
    103 /* U_HAVE_RBNF */
    104 #endif
    105 
    106 // NFRS_H
    107 #endif
    108 
    109