+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
-* Copyright (C) 2007-2013, International Business Machines Corporation and
+* Copyright (C) 2007-2016, International Business Machines Corporation and
* others. All Rights Reserved.
*******************************************************************************
*
*/
-#ifndef PLURRULE_IMPLE
-#define PLURRULE_IMPLE
+#ifndef PLURRULE_IMPL
+#define PLURRULE_IMPL
// Internal definitions for the PluralRules implementation.
+#include "unicode/utypes.h"
+
#if !UCONFIG_NO_FORMATTING
#include "unicode/format.h"
#include "unicode/locid.h"
#include "unicode/parseerr.h"
+#include "unicode/strenum.h"
#include "unicode/ures.h"
-#include "unicode/utypes.h"
#include "uvector.h"
#include "hash.h"
+#include "uassert.h"
class PluralRulesTest;
class AndConstraint;
class RuleChain;
+class DigitInterval;
+class PluralRules;
+class VisibleDigits;
+
+static const UChar DOT = ((UChar) 0x002E);
+static const UChar SINGLE_QUOTE = ((UChar) 0x0027);
+static const UChar SLASH = ((UChar) 0x002F);
+static const UChar BACKSLASH = ((UChar) 0x005C);
+static const UChar SPACE = ((UChar) 0x0020);
+static const UChar EXCLAMATION = ((UChar) 0x0021);
+static const UChar QUOTATION_MARK = ((UChar) 0x0022);
+static const UChar NUMBER_SIGN = ((UChar) 0x0023);
+static const UChar PERCENT_SIGN = ((UChar) 0x0025);
+static const UChar ASTERISK = ((UChar) 0x002A);
+static const UChar COMMA = ((UChar) 0x002C);
+static const UChar HYPHEN = ((UChar) 0x002D);
+static const UChar U_ZERO = ((UChar) 0x0030);
+static const UChar U_ONE = ((UChar) 0x0031);
+static const UChar U_TWO = ((UChar) 0x0032);
+static const UChar U_THREE = ((UChar) 0x0033);
+static const UChar U_FOUR = ((UChar) 0x0034);
+static const UChar U_FIVE = ((UChar) 0x0035);
+static const UChar U_SIX = ((UChar) 0x0036);
+static const UChar U_SEVEN = ((UChar) 0x0037);
+static const UChar U_EIGHT = ((UChar) 0x0038);
+static const UChar U_NINE = ((UChar) 0x0039);
+static const UChar COLON = ((UChar) 0x003A);
+static const UChar SEMI_COLON = ((UChar) 0x003B);
+static const UChar EQUALS = ((UChar) 0x003D);
+static const UChar AT = ((UChar) 0x0040);
+static const UChar CAP_A = ((UChar) 0x0041);
+static const UChar CAP_B = ((UChar) 0x0042);
+static const UChar CAP_R = ((UChar) 0x0052);
+static const UChar CAP_Z = ((UChar) 0x005A);
+static const UChar LOWLINE = ((UChar) 0x005F);
+static const UChar LEFTBRACE = ((UChar) 0x007B);
+static const UChar RIGHTBRACE = ((UChar) 0x007D);
+static const UChar TILDE = ((UChar) 0x007E);
+static const UChar ELLIPSIS = ((UChar) 0x2026);
+
+static const UChar LOW_A = ((UChar) 0x0061);
+static const UChar LOW_B = ((UChar) 0x0062);
+static const UChar LOW_C = ((UChar) 0x0063);
+static const UChar LOW_D = ((UChar) 0x0064);
+static const UChar LOW_E = ((UChar) 0x0065);
+static const UChar LOW_F = ((UChar) 0x0066);
+static const UChar LOW_G = ((UChar) 0x0067);
+static const UChar LOW_H = ((UChar) 0x0068);
+static const UChar LOW_I = ((UChar) 0x0069);
+static const UChar LOW_J = ((UChar) 0x006a);
+static const UChar LOW_K = ((UChar) 0x006B);
+static const UChar LOW_L = ((UChar) 0x006C);
+static const UChar LOW_M = ((UChar) 0x006D);
+static const UChar LOW_N = ((UChar) 0x006E);
+static const UChar LOW_O = ((UChar) 0x006F);
+static const UChar LOW_P = ((UChar) 0x0070);
+static const UChar LOW_Q = ((UChar) 0x0071);
+static const UChar LOW_R = ((UChar) 0x0072);
+static const UChar LOW_S = ((UChar) 0x0073);
+static const UChar LOW_T = ((UChar) 0x0074);
+static const UChar LOW_U = ((UChar) 0x0075);
+static const UChar LOW_V = ((UChar) 0x0076);
+static const UChar LOW_W = ((UChar) 0x0077);
+static const UChar LOW_Y = ((UChar) 0x0079);
+static const UChar LOW_Z = ((UChar) 0x007A);
-static const UChar DOT = ((UChar)0x002E);
-static const UChar SINGLE_QUOTE = ((UChar)0x0027);
-static const UChar SLASH = ((UChar)0x002F);
-static const UChar BACKSLASH = ((UChar)0x005C);
-static const UChar SPACE = ((UChar)0x0020);
-static const UChar EXCLAMATION = ((UChar)0x0021);
-static const UChar QUOTATION_MARK = ((UChar)0x0022);
-static const UChar NUMBER_SIGN = ((UChar)0x0023);
-static const UChar PERCENT_SIGN = ((UChar)0x0025);
-static const UChar ASTERISK = ((UChar)0x002A);
-static const UChar COMMA = ((UChar)0x002C);
-static const UChar HYPHEN = ((UChar)0x002D);
-static const UChar U_ZERO = ((UChar)0x0030);
-static const UChar U_ONE = ((UChar)0x0031);
-static const UChar U_TWO = ((UChar)0x0032);
-static const UChar U_THREE = ((UChar)0x0033);
-static const UChar U_FOUR = ((UChar)0x0034);
-static const UChar U_FIVE = ((UChar)0x0035);
-static const UChar U_SIX = ((UChar)0x0036);
-static const UChar U_SEVEN = ((UChar)0x0037);
-static const UChar U_EIGHT = ((UChar)0x0038);
-static const UChar U_NINE = ((UChar)0x0039);
-static const UChar COLON = ((UChar)0x003A);
-static const UChar SEMI_COLON = ((UChar)0x003B);
-static const UChar EQUALS = ((UChar)0x003D);
-static const UChar AT = ((UChar)0x0040);
-static const UChar CAP_A = ((UChar)0x0041);
-static const UChar CAP_B = ((UChar)0x0042);
-static const UChar CAP_R = ((UChar)0x0052);
-static const UChar CAP_Z = ((UChar)0x005A);
-static const UChar LOWLINE = ((UChar)0x005F);
-static const UChar LEFTBRACE = ((UChar)0x007B);
-static const UChar RIGHTBRACE = ((UChar)0x007D);
-static const UChar TILDE = ((UChar)0x007E);
-static const UChar ELLIPSIS = ((UChar)0x2026);
-
-static const UChar LOW_A = ((UChar)0x0061);
-static const UChar LOW_B = ((UChar)0x0062);
-static const UChar LOW_C = ((UChar)0x0063);
-static const UChar LOW_D = ((UChar)0x0064);
-static const UChar LOW_E = ((UChar)0x0065);
-static const UChar LOW_F = ((UChar)0x0066);
-static const UChar LOW_G = ((UChar)0x0067);
-static const UChar LOW_H = ((UChar)0x0068);
-static const UChar LOW_I = ((UChar)0x0069);
-static const UChar LOW_J = ((UChar)0x006a);
-static const UChar LOW_K = ((UChar)0x006B);
-static const UChar LOW_L = ((UChar)0x006C);
-static const UChar LOW_M = ((UChar)0x006D);
-static const UChar LOW_N = ((UChar)0x006E);
-static const UChar LOW_O = ((UChar)0x006F);
-static const UChar LOW_P = ((UChar)0x0070);
-static const UChar LOW_Q = ((UChar)0x0071);
-static const UChar LOW_R = ((UChar)0x0072);
-static const UChar LOW_S = ((UChar)0x0073);
-static const UChar LOW_T = ((UChar)0x0074);
-static const UChar LOW_U = ((UChar)0x0075);
-static const UChar LOW_V = ((UChar)0x0076);
-static const UChar LOW_W = ((UChar)0x0077);
-static const UChar LOW_Y = ((UChar)0x0079);
-static const UChar LOW_Z = ((UChar)0x007A);
static const int32_t PLURAL_RANGE_HIGH = 0x7fffffff;
};
+enum PluralOperand {
+ /**
+ * The double value of the entire number.
+ */
+ PLURAL_OPERAND_N,
+
+ /**
+ * The integer value, with the fraction digits truncated off.
+ */
+ PLURAL_OPERAND_I,
+
+ /**
+ * All visible fraction digits as an integer, including trailing zeros.
+ */
+ PLURAL_OPERAND_F,
+
+ /**
+ * Visible fraction digits as an integer, not including trailing zeros.
+ */
+ PLURAL_OPERAND_T,
+
+ /**
+ * Number of visible fraction digits.
+ */
+ PLURAL_OPERAND_V,
+
+ /**
+ * Number of visible fraction digits, not including trailing zeros.
+ */
+ PLURAL_OPERAND_W,
+
+ /**
+ * THIS OPERAND IS DEPRECATED AND HAS BEEN REMOVED FROM THE SPEC.
+ *
+ * <p>Returns the integer value, but will fail if the number has fraction digits.
+ * That is, using "j" instead of "i" is like implicitly adding "v is 0".
+ *
+ * <p>For example, "j is 3" is equivalent to "i is 3 and v is 0": it matches
+ * "3" but not "3.1" or "3.0".
+ */
+ PLURAL_OPERAND_J
+};
+
+/**
+ * Converts from the tokenType enum to PluralOperand. Asserts that the given
+ * tokenType can be mapped to a PluralOperand.
+ */
+PluralOperand tokenTypeToPluralOperand(tokenType tt);
+
+/**
+ * An interface to FixedDecimal, allowing for other implementations.
+ * @internal
+ */
+class U_I18N_API IFixedDecimal {
+ public:
+ virtual ~IFixedDecimal();
+
+ /**
+ * Returns the value corresponding to the specified operand (n, i, f, t, v, or w).
+ * If the operand is 'n', returns a double; otherwise, returns an integer.
+ */
+ virtual double getPluralOperand(PluralOperand operand) const = 0;
+
+ virtual bool isNaN() const = 0;
+
+ virtual bool isInfinite() const = 0;
+
+ /** Whether the number has no nonzero fraction digits. */
+ virtual bool hasIntegerValue() const = 0;
+};
+
/**
* class FixedDecimal serves to communicate the properties
* of a formatted number from a decimal formatter to PluralRules::select()
* see DecimalFormat::getFixedDecimal()
* @internal
*/
-class U_I18N_API FixedDecimal: public UMemory {
+class U_I18N_API FixedDecimal: public IFixedDecimal, public UObject {
public:
/**
* @param n the number, e.g. 12.345
FixedDecimal(double n, int32_t v, int64_t f);
FixedDecimal(double n, int32_t);
explicit FixedDecimal(double n);
+ explicit FixedDecimal(const VisibleDigits &n);
FixedDecimal();
+ ~FixedDecimal() U_OVERRIDE;
FixedDecimal(const UnicodeString &s, UErrorCode &ec);
FixedDecimal(const FixedDecimal &other);
- double get(tokenType operand) const;
+ double getPluralOperand(PluralOperand operand) const U_OVERRIDE;
+ bool isNaN() const U_OVERRIDE;
+ bool isInfinite() const U_OVERRIDE;
+ bool hasIntegerValue() const U_OVERRIDE;
+
+ bool isNanOrInfinity() const; // used in decimfmtimpl.cpp
+
int32_t getVisibleFractionDigitCount() const;
void init(double n, int32_t v, int64_t f);
int64_t decimalDigits;
int64_t decimalDigitsWithoutTrailingZeros;
int64_t intValue;
- UBool hasIntegerValue;
+ UBool _hasIntegerValue;
UBool isNegative;
- UBool isNanOrInfinity;
+ UBool _isNaN;
+ UBool _isInfinite;
};
class AndConstraint : public UMemory {
virtual ~AndConstraint();
AndConstraint* add();
// UBool isFulfilled(double number);
- UBool isFulfilled(const FixedDecimal &number);
+ UBool isFulfilled(const IFixedDecimal &number);
};
class OrConstraint : public UMemory {
virtual ~OrConstraint();
AndConstraint* add();
// UBool isFulfilled(double number);
- UBool isFulfilled(const FixedDecimal &number);
+ UBool isFulfilled(const IFixedDecimal &number);
};
class RuleChain : public UMemory {
RuleChain(const RuleChain& other);
virtual ~RuleChain();
- UnicodeString select(const FixedDecimal &number) const;
+ UnicodeString select(const IFixedDecimal &number) const;
void dumpRules(UnicodeString& result);
UErrorCode getKeywords(int32_t maxArraySize, UnicodeString *keywords, int32_t& arraySize) const;
UBool isKeyword(const UnicodeString& keyword) const;
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