icuSources/i18n/nfrs.h

   1 /*
   2 ******************************************************************************
   3 *   Copyright (C) 1997-2009, 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 {
  45       UnicodeString prefixpart = UNICODE_STRING_SIMPLE("-prefixpart");
  46       UnicodeString postfix = UNICODE_STRING_SIMPLE("-postfix");
  47       UnicodeString postfx = UNICODE_STRING_SIMPLE("-postfx");
  48
  49       return ( name.indexOf(prefixpart) == -1 && name.indexOf(postfix) == -1 && name.indexOf(postfx) == -1 );
  50   }
  51
  52   UBool isDecimalFormatRuleParseable() const {
  53       UnicodeString numberingYear = UNICODE_STRING_SIMPLE("spellout-numbering-year");
  54       UnicodeString ordinal = UNICODE_STRING_SIMPLE("spellout-ordinal");
  55
  56       return ( name.indexOf(numberingYear) == -1 && name.indexOf(ordinal) == -1 );
  57   }
  58
  59   UBool isFractionRuleSet() const { return fIsFractionRuleSet; }
  60
  61   void  getName(UnicodeString& result) const { result.setTo(name); }
  62   UBool isNamed(const UnicodeString& _name) const { return this->name == _name; }
  63
  64   void  format(int64_t number, UnicodeString& toAppendTo, int32_t pos) const;
  65   void  format(double number, UnicodeString& toAppendTo, int32_t pos) const;
  66
  67   UBool parse(const UnicodeString& text, ParsePosition& pos, double upperBound, Formattable& result, UBool lenient=FALSE) const;
  68
  69   void appendRules(UnicodeString& result) const; // toString
  70
  71  private:
  72   NFRule * findNormalRule(int64_t number) const;
  73   NFRule * findDoubleRule(double number) const;
  74   NFRule * findFractionRuleSetRule(double number) const;
  75
  76  private:
  77   UnicodeString name;
  78   NFRuleList rules;
  79   NFRule *negativeNumberRule;
  80   NFRule *fractionRules[3];
  81   UBool fIsFractionRuleSet;
  82   UBool fIsPublic;
  83   int32_t fRecursionCount;
  84
  85   NFRuleSet(const NFRuleSet &other); // forbid copying of this class
  86   NFRuleSet &operator=(const NFRuleSet &other); // forbid copying of this class
  87 };
  88
  89 // utilities from old llong.h
  90 // convert mantissa portion of double to int64
  91 int64_t util64_fromDouble(double d);
  92
  93 // raise radix to the power exponent, only non-negative exponents
  94 int64_t util64_pow(int32_t radix, uint32_t exponent);
  95
  96 // convert n to digit string in buffer, return length of string
  97 uint32_t util64_tou(int64_t n, UChar* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = FALSE);
  98
  99 #ifdef RBNF_DEBUG
 100 int64_t util64_utoi(const UChar* str, uint32_t radix = 10);
 101 uint32_t util64_toa(int64_t n, char* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = FALSE);
 102 int64_t util64_atoi(const char* str, uint32_t radix);
 103 #endif
 104
 105
 106 U_NAMESPACE_END
 107
 108 /* U_HAVE_RBNF */
 109 #endif
 110
 111 // NFRS_H
 112 #endif
 113