icuSources/i18n/nfrs.h

   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 isDecimalFormatRuleParseable() const {
  47       UnicodeString numberingYear = UNICODE_STRING_SIMPLE("spellout-numbering-year");
  48       UnicodeString ordinal = UNICODE_STRING_SIMPLE("spellout-ordinal");
  49
  50       return ( name.indexOf(numberingYear) == -1 && name.indexOf(ordinal) == -1 );
  51   }
  52
  53   UBool isFractionRuleSet() const { return fIsFractionRuleSet; }
  54
  55   void  getName(UnicodeString& result) const { result.setTo(name); }
  56   UBool isNamed(const UnicodeString& _name) const { return this->name == _name; }
  57
  58   void  format(int64_t number, UnicodeString& toAppendTo, int32_t pos) const;
  59   void  format(double number, UnicodeString& toAppendTo, int32_t pos) const;
  60
  61   UBool parse(const UnicodeString& text, ParsePosition& pos, double upperBound, Formattable& result, UBool lenient=FALSE) const;
  62
  63   void appendRules(UnicodeString& result) const; // toString
  64
  65  private:
  66   NFRule * findNormalRule(int64_t number) const;
  67   NFRule * findDoubleRule(double number) const;
  68   NFRule * findFractionRuleSetRule(double number) const;
  69
  70  private:
  71   UnicodeString name;
  72   NFRuleList rules;
  73   NFRule *negativeNumberRule;
  74   NFRule *fractionRules[3];
  75   UBool fIsFractionRuleSet;
  76   UBool fIsPublic;
  77   UBool fIsParseable;
  78   int32_t fRecursionCount;
  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