Check in the pristine copy of ICU 4.6...

icu46/source/i18n/nfrs.h

+/*
+******************************************************************************
+*   Copyright (C) 1997-2009, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+******************************************************************************
+*   file name:  nfrs.h
+*   encoding:   US-ASCII
+*   tab size:   8 (not used)
+*   indentation:4
+*
+* Modification history
+* Date        Name      Comments
+* 10/11/2001  Doug      Ported from ICU4J
+*/
+
+#ifndef NFRS_H
+#define NFRS_H
+
+#include "unicode/uobject.h"
+#include "unicode/rbnf.h"
+
+#if U_HAVE_RBNF
+
+#include "unicode/utypes.h"
+#include "unicode/umisc.h"
+
+#include "nfrlist.h"
+
+U_NAMESPACE_BEGIN
+
+class NFRuleSet : public UMemory {
+ public:
+  NFRuleSet(UnicodeString* descriptions, int32_t index, UErrorCode& status);
+  void parseRules(UnicodeString& rules, const RuleBasedNumberFormat* owner, UErrorCode& status);
+  void makeIntoFractionRuleSet() { fIsFractionRuleSet = TRUE; }
+
+  ~NFRuleSet();
+
+  UBool operator==(const NFRuleSet& rhs) const;
+  UBool operator!=(const NFRuleSet& rhs) const { return !operator==(rhs); }
+
+  UBool isPublic() const { return fIsPublic; }
+
+  UBool isParseable() const { 
+      UnicodeString prefixpart = UNICODE_STRING_SIMPLE("-prefixpart");
+      UnicodeString postfix = UNICODE_STRING_SIMPLE("-postfix");
+      UnicodeString postfx = UNICODE_STRING_SIMPLE("-postfx");
+
+      return ( name.indexOf(prefixpart) == -1 && name.indexOf(postfix) == -1 && name.indexOf(postfx) == -1 );
+  }
+
+  UBool isFractionRuleSet() const { return fIsFractionRuleSet; }
+
+  void  getName(UnicodeString& result) const { result.setTo(name); }
+  UBool isNamed(const UnicodeString& _name) const { return this->name == _name; }
+
+  void  format(int64_t number, UnicodeString& toAppendTo, int32_t pos) const;
+  void  format(double number, UnicodeString& toAppendTo, int32_t pos) const;
+
+  UBool parse(const UnicodeString& text, ParsePosition& pos, double upperBound, Formattable& result) const;
+
+  void appendRules(UnicodeString& result) const; // toString
+
+ private:
+  NFRule * findNormalRule(int64_t number) const;
+  NFRule * findDoubleRule(double number) const;
+  NFRule * findFractionRuleSetRule(double number) const;
+
+ private:
+  UnicodeString name;
+  NFRuleList rules;
+  NFRule *negativeNumberRule;
+  NFRule *fractionRules[3];
+  UBool fIsFractionRuleSet;
+  UBool fIsPublic;
+  int32_t fRecursionCount;
+
+  NFRuleSet(const NFRuleSet &other); // forbid copying of this class
+  NFRuleSet &operator=(const NFRuleSet &other); // forbid copying of this class
+};
+
+// utilities from old llong.h
+// convert mantissa portion of double to int64
+int64_t util64_fromDouble(double d);
+
+// raise radix to the power exponent, only non-negative exponents
+int64_t util64_pow(int32_t radix, uint32_t exponent);
+
+// convert n to digit string in buffer, return length of string
+uint32_t util64_tou(int64_t n, UChar* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = FALSE);
+
+#ifdef RBNF_DEBUG
+int64_t util64_utoi(const UChar* str, uint32_t radix = 10);
+uint32_t util64_toa(int64_t n, char* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = FALSE);
+int64_t util64_atoi(const char* str, uint32_t radix);
+#endif
+
+
+U_NAMESPACE_END
+
+/* U_HAVE_RBNF */
+#endif
+
+// NFRS_H
+#endif
+