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      1 /*
      2 ******************************************************************************
      3 *   Copyright (C) 1997-2012, 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(UnicodeString* descriptions, int32_t index, UErrorCode& status);
     34   void parseRules(UnicodeString& rules, const RuleBasedNumberFormat* owner, UErrorCode& status);
     35   void makeIntoFractionRuleSet() { fIsFractionRuleSet = TRUE; }
     36 
     37   ~NFRuleSet();
     38 
     39   UBool operator==(const NFRuleSet& rhs) const;
     40   UBool operator!=(const NFRuleSet& rhs) const { return !operator==(rhs); }
     41 
     42   UBool isPublic() const { return fIsPublic; }
     43 
     44   UBool isParseable() const { return fIsParseable; }
     45 
     46   UBool isFractionRuleSet() const { return fIsFractionRuleSet; }
     47 
     48   void  getName(UnicodeString& result) const { result.setTo(name); }
     49   UBool isNamed(const UnicodeString& _name) const { return this->name == _name; }
     50 
     51   void  format(int64_t number, UnicodeString& toAppendTo, int32_t pos) const;
     52   void  format(double number, UnicodeString& toAppendTo, int32_t pos) const;
     53 
     54   UBool parse(const UnicodeString& text, ParsePosition& pos, double upperBound, Formattable& result) const;
     55 
     56   void appendRules(UnicodeString& result) const; // toString
     57 
     58  private:
     59   NFRule * findNormalRule(int64_t number) const;
     60   NFRule * findDoubleRule(double number) const;
     61   NFRule * findFractionRuleSetRule(double number) const;
     62 
     63  private:
     64   UnicodeString name;
     65   NFRuleList rules;
     66   NFRule *negativeNumberRule;
     67   NFRule *fractionRules[3];
     68   UBool fIsFractionRuleSet;
     69   UBool fIsPublic;
     70   UBool fIsParseable;
     71   int32_t fRecursionCount;
     72 
     73   NFRuleSet(const NFRuleSet &other); // forbid copying of this class
     74   NFRuleSet &operator=(const NFRuleSet &other); // forbid copying of this class
     75 };
     76 
     77 // utilities from old llong.h
     78 // convert mantissa portion of double to int64
     79 int64_t util64_fromDouble(double d);
     80 
     81 // raise radix to the power exponent, only non-negative exponents
     82 int64_t util64_pow(int32_t radix, uint32_t exponent);
     83 
     84 // convert n to digit string in buffer, return length of string
     85 uint32_t util64_tou(int64_t n, UChar* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = FALSE);
     86 
     87 #ifdef RBNF_DEBUG
     88 int64_t util64_utoi(const UChar* str, uint32_t radix = 10);
     89 uint32_t util64_toa(int64_t n, char* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = FALSE);
     90 int64_t util64_atoi(const char* str, uint32_t radix);
     91 #endif
     92 
     93 
     94 U_NAMESPACE_END
     95 
     96 /* U_HAVE_RBNF */
     97 #endif
     98 
     99 // NFRS_H
    100 #endif
    101 
    102