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Diffstat (limited to 'deps/node/deps/icu-small/source/i18n/unicode/plurrule.h')
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diff --git a/deps/node/deps/icu-small/source/i18n/unicode/plurrule.h b/deps/node/deps/icu-small/source/i18n/unicode/plurrule.h deleted file mode 100644 index daeed52b..00000000 --- a/deps/node/deps/icu-small/source/i18n/unicode/plurrule.h +++ /dev/null @@ -1,514 +0,0 @@ -// © 2016 and later: Unicode, Inc. and others. -// License & terms of use: http://www.unicode.org/copyright.html -/* -******************************************************************************* -* Copyright (C) 2008-2015, International Business Machines Corporation and -* others. All Rights Reserved. -******************************************************************************* -* -* -* File PLURRULE.H -* -* Modification History:* -* Date Name Description -* -******************************************************************************** -*/ - -#ifndef PLURRULE -#define PLURRULE - -#include "unicode/utypes.h" - -/** - * \file - * \brief C++ API: PluralRules object - */ - -#if !UCONFIG_NO_FORMATTING - -#include "unicode/format.h" -#include "unicode/upluralrules.h" -#ifndef U_HIDE_INTERNAL_API -#include "unicode/numfmt.h" -#endif /* U_HIDE_INTERNAL_API */ - -/** - * Value returned by PluralRules::getUniqueKeywordValue() when there is no - * unique value to return. - * @stable ICU 4.8 - */ -#define UPLRULES_NO_UNIQUE_VALUE ((double)-0.00123456777) - -U_NAMESPACE_BEGIN - -class Hashtable; -class IFixedDecimal; -class RuleChain; -class PluralRuleParser; -class PluralKeywordEnumeration; -class AndConstraint; -class SharedPluralRules; - -/** - * Defines rules for mapping non-negative numeric values onto a small set of - * keywords. Rules are constructed from a text description, consisting - * of a series of keywords and conditions. The {@link #select} method - * examines each condition in order and returns the keyword for the - * first condition that matches the number. If none match, - * default rule(other) is returned. - * - * For more information, details, and tips for writing rules, see the - * LDML spec, C.11 Language Plural Rules: - * http://www.unicode.org/draft/reports/tr35/tr35.html#Language_Plural_Rules - * - * Examples:<pre> - * "one: n is 1; few: n in 2..4"</pre> - * This defines two rules, for 'one' and 'few'. The condition for - * 'one' is "n is 1" which means that the number must be equal to - * 1 for this condition to pass. The condition for 'few' is - * "n in 2..4" which means that the number must be between 2 and - * 4 inclusive for this condition to pass. All other numbers - * are assigned the keyword "other" by the default rule. - * </p><pre> - * "zero: n is 0; one: n is 1; zero: n mod 100 in 1..19"</pre> - * This illustrates that the same keyword can be defined multiple times. - * Each rule is examined in order, and the first keyword whose condition - * passes is the one returned. Also notes that a modulus is applied - * to n in the last rule. Thus its condition holds for 119, 219, 319... - * </p><pre> - * "one: n is 1; few: n mod 10 in 2..4 and n mod 100 not in 12..14"</pre> - * This illustrates conjunction and negation. The condition for 'few' - * has two parts, both of which must be met: "n mod 10 in 2..4" and - * "n mod 100 not in 12..14". The first part applies a modulus to n - * before the test as in the previous example. The second part applies - * a different modulus and also uses negation, thus it matches all - * numbers _not_ in 12, 13, 14, 112, 113, 114, 212, 213, 214... - * </p> - * <p> - * Syntax:<pre> - * \code - * rules = rule (';' rule)* - * rule = keyword ':' condition - * keyword = <identifier> - * condition = and_condition ('or' and_condition)* - * and_condition = relation ('and' relation)* - * relation = is_relation | in_relation | within_relation | 'n' <EOL> - * is_relation = expr 'is' ('not')? value - * in_relation = expr ('not')? 'in' range_list - * within_relation = expr ('not')? 'within' range - * expr = ('n' | 'i' | 'f' | 'v' | 'j') ('mod' value)? - * range_list = (range | value) (',' range_list)* - * value = digit+ ('.' digit+)? - * digit = 0|1|2|3|4|5|6|7|8|9 - * range = value'..'value - * \endcode - * </pre></p> - * <p> - * <p> - * The i, f, and v values are defined as follows: - * </p> - * <ul> - * <li>i to be the integer digits.</li> - * <li>f to be the visible fractional digits, as an integer.</li> - * <li>v to be the number of visible fraction digits.</li> - * <li>j is defined to only match integers. That is j is 3 fails if v != 0 (eg for 3.1 or 3.0).</li> - * </ul> - * <p> - * Examples are in the following table: - * </p> - * <table border='1' style="border-collapse:collapse"> - * <tr> - * <th>n</th> - * <th>i</th> - * <th>f</th> - * <th>v</th> - * </tr> - * <tr> - * <td>1.0</td> - * <td>1</td> - * <td align="right">0</td> - * <td>1</td> - * </tr> - * <tr> - * <td>1.00</td> - * <td>1</td> - * <td align="right">0</td> - * <td>2</td> - * </tr> - * <tr> - * <td>1.3</td> - * <td>1</td> - * <td align="right">3</td> - * <td>1</td> - * </tr> - * <tr> - * <td>1.03</td> - * <td>1</td> - * <td align="right">3</td> - * <td>2</td> - * </tr> - * <tr> - * <td>1.23</td> - * <td>1</td> - * <td align="right">23</td> - * <td>2</td> - * </tr> - * </table> - * <p> - * The difference between 'in' and 'within' is that 'in' only includes integers in the specified range, while 'within' - * includes all values. Using 'within' with a range_list consisting entirely of values is the same as using 'in' (it's - * not an error). - * </p> - - * An "identifier" is a sequence of characters that do not have the - * Unicode Pattern_Syntax or Pattern_White_Space properties. - * <p> - * The difference between 'in' and 'within' is that 'in' only includes - * integers in the specified range, while 'within' includes all values. - * Using 'within' with a range_list consisting entirely of values is the - * same as using 'in' (it's not an error). - *</p> - * <p> - * Keywords - * could be defined by users or from ICU locale data. There are 6 - * predefined values in ICU - 'zero', 'one', 'two', 'few', 'many' and - * 'other'. Callers need to check the value of keyword returned by - * {@link #select} method. - * </p> - * - * Examples:<pre> - * UnicodeString keyword = pl->select(number); - * if (keyword== UnicodeString("one") { - * ... - * } - * else if ( ... ) - * </pre> - * <strong>Note:</strong><br> - * <p> - * ICU defines plural rules for many locales based on CLDR <i>Language Plural Rules</i>. - * For these predefined rules, see CLDR page at - * http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html - * </p> - */ -class U_I18N_API PluralRules : public UObject { -public: - - /** - * Constructor. - * @param status Output param set to success/failure code on exit, which - * must not indicate a failure before the function call. - * - * @stable ICU 4.0 - */ - PluralRules(UErrorCode& status); - - /** - * Copy constructor. - * @stable ICU 4.0 - */ - PluralRules(const PluralRules& other); - - /** - * Destructor. - * @stable ICU 4.0 - */ - virtual ~PluralRules(); - - /** - * Clone - * @stable ICU 4.0 - */ - PluralRules* clone() const; - - /** - * Assignment operator. - * @stable ICU 4.0 - */ - PluralRules& operator=(const PluralRules&); - - /** - * Creates a PluralRules from a description if it is parsable, otherwise - * returns NULL. - * - * @param description rule description - * @param status Output param set to success/failure code on exit, which - * must not indicate a failure before the function call. - * @return new PluralRules pointer. NULL if there is an error. - * @stable ICU 4.0 - */ - static PluralRules* U_EXPORT2 createRules(const UnicodeString& description, - UErrorCode& status); - - /** - * The default rules that accept any number. - * - * @param status Output param set to success/failure code on exit, which - * must not indicate a failure before the function call. - * @return new PluralRules pointer. NULL if there is an error. - * @stable ICU 4.0 - */ - static PluralRules* U_EXPORT2 createDefaultRules(UErrorCode& status); - - /** - * Provides access to the predefined cardinal-number <code>PluralRules</code> for a given - * locale. - * Same as forLocale(locale, UPLURAL_TYPE_CARDINAL, status). - * - * @param locale The locale for which a <code>PluralRules</code> object is - * returned. - * @param status Output param set to success/failure code on exit, which - * must not indicate a failure before the function call. - * @return The predefined <code>PluralRules</code> object pointer for - * this locale. If there's no predefined rules for this locale, - * the rules for the closest parent in the locale hierarchy - * that has one will be returned. The final fallback always - * returns the default 'other' rules. - * @stable ICU 4.0 - */ - static PluralRules* U_EXPORT2 forLocale(const Locale& locale, UErrorCode& status); - - /** - * Provides access to the predefined <code>PluralRules</code> for a given - * locale and the plural type. - * - * @param locale The locale for which a <code>PluralRules</code> object is - * returned. - * @param type The plural type (e.g., cardinal or ordinal). - * @param status Output param set to success/failure code on exit, which - * must not indicate a failure before the function call. - * @return The predefined <code>PluralRules</code> object pointer for - * this locale. If there's no predefined rules for this locale, - * the rules for the closest parent in the locale hierarchy - * that has one will be returned. The final fallback always - * returns the default 'other' rules. - * @stable ICU 50 - */ - static PluralRules* U_EXPORT2 forLocale(const Locale& locale, UPluralType type, UErrorCode& status); - -#ifndef U_HIDE_INTERNAL_API - /** - * Return a StringEnumeration over the locales for which there is plurals data. - * @return a StringEnumeration over the locales available. - * @internal - */ - static StringEnumeration* U_EXPORT2 getAvailableLocales(UErrorCode &status); - - /** - * Returns whether or not there are overrides. - * @param locale the locale to check. - * @return - * @internal - */ - static UBool hasOverride(const Locale &locale); - - /** - * For ICU use only. - * creates a SharedPluralRules object - * @internal - */ - static PluralRules* U_EXPORT2 internalForLocale(const Locale& locale, UPluralType type, UErrorCode& status); - - /** - * For ICU use only. - * Returns handle to the shared, cached PluralRules instance. - * Caller must call removeRef() on returned value once it is done with - * the shared instance. - * @internal - */ - static const SharedPluralRules* U_EXPORT2 createSharedInstance( - const Locale& locale, UPluralType type, UErrorCode& status); - - -#endif /* U_HIDE_INTERNAL_API */ - - /** - * Given a number, returns the keyword of the first rule that applies to - * the number. This function can be used with isKeyword* functions to - * determine the keyword for default plural rules. - * - * @param number The number for which the rule has to be determined. - * @return The keyword of the selected rule. - * @stable ICU 4.0 - */ - UnicodeString select(int32_t number) const; - - /** - * Given a number, returns the keyword of the first rule that applies to - * the number. This function can be used with isKeyword* functions to - * determine the keyword for default plural rules. - * - * @param number The number for which the rule has to be determined. - * @return The keyword of the selected rule. - * @stable ICU 4.0 - */ - UnicodeString select(double number) const; - -#ifndef U_HIDE_INTERNAL_API - /** - * @internal - */ - UnicodeString select(const IFixedDecimal &number) const; -#endif /* U_HIDE_INTERNAL_API */ - - /** - * Returns a list of all rule keywords used in this <code>PluralRules</code> - * object. The rule 'other' is always present by default. - * - * @param status Output param set to success/failure code on exit, which - * must not indicate a failure before the function call. - * @return StringEnumeration with the keywords. - * The caller must delete the object. - * @stable ICU 4.0 - */ - StringEnumeration* getKeywords(UErrorCode& status) const; - -#ifndef U_HIDE_DEPRECATED_API - /** - * Deprecated Function, does not return useful results. - * - * Originally intended to return a unique value for this keyword if it exists, - * else the constant UPLRULES_NO_UNIQUE_VALUE. - * - * @param keyword The keyword. - * @return Stub deprecated function returns UPLRULES_NO_UNIQUE_VALUE always. - * @deprecated ICU 55 - */ - double getUniqueKeywordValue(const UnicodeString& keyword); - - /** - * Deprecated Function, does not produce useful results. - * - * Originally intended to return all the values for which select() would return the keyword. - * If the keyword is unknown, returns no values, but this is not an error. If - * the number of values is unlimited, returns no values and -1 as the - * count. - * - * The number of returned values is typically small. - * - * @param keyword The keyword. - * @param dest Array into which to put the returned values. May - * be NULL if destCapacity is 0. - * @param destCapacity The capacity of the array, must be at least 0. - * @param status The error code. Deprecated function, always sets U_UNSUPPORTED_ERROR. - * @return The count of values available, or -1. This count - * can be larger than destCapacity, but no more than - * destCapacity values will be written. - * @deprecated ICU 55 - */ - int32_t getAllKeywordValues(const UnicodeString &keyword, - double *dest, int32_t destCapacity, - UErrorCode& status); -#endif /* U_HIDE_DEPRECATED_API */ - - /** - * Returns sample values for which select() would return the keyword. If - * the keyword is unknown, returns no values, but this is not an error. - * - * The number of returned values is typically small. - * - * @param keyword The keyword. - * @param dest Array into which to put the returned values. May - * be NULL if destCapacity is 0. - * @param destCapacity The capacity of the array, must be at least 0. - * @param status The error code. - * @return The count of values written. - * If more than destCapacity samples are available, then - * only destCapacity are written, and destCapacity is returned as the count, - * rather than setting a U_BUFFER_OVERFLOW_ERROR. - * (The actual number of keyword values could be unlimited.) - * @stable ICU 4.8 - */ - int32_t getSamples(const UnicodeString &keyword, - double *dest, int32_t destCapacity, - UErrorCode& status); - - /** - * Returns TRUE if the given keyword is defined in this - * <code>PluralRules</code> object. - * - * @param keyword the input keyword. - * @return TRUE if the input keyword is defined. - * Otherwise, return FALSE. - * @stable ICU 4.0 - */ - UBool isKeyword(const UnicodeString& keyword) const; - - - /** - * Returns keyword for default plural form. - * - * @return keyword for default plural form. - * @stable ICU 4.0 - */ - UnicodeString getKeywordOther() const; - -#ifndef U_HIDE_INTERNAL_API - /** - * - * @internal - */ - UnicodeString getRules() const; -#endif /* U_HIDE_INTERNAL_API */ - - /** - * Compares the equality of two PluralRules objects. - * - * @param other The other PluralRules object to be compared with. - * @return True if the given PluralRules is the same as this - * PluralRules; false otherwise. - * @stable ICU 4.0 - */ - virtual UBool operator==(const PluralRules& other) const; - - /** - * Compares the inequality of two PluralRules objects. - * - * @param other The PluralRules object to be compared with. - * @return True if the given PluralRules is not the same as this - * PluralRules; false otherwise. - * @stable ICU 4.0 - */ - UBool operator!=(const PluralRules& other) const {return !operator==(other);} - - - /** - * ICU "poor man's RTTI", returns a UClassID for this class. - * - * @stable ICU 4.0 - * - */ - static UClassID U_EXPORT2 getStaticClassID(void); - - /** - * ICU "poor man's RTTI", returns a UClassID for the actual class. - * - * @stable ICU 4.0 - */ - virtual UClassID getDynamicClassID() const; - - -private: - RuleChain *mRules; - - PluralRules(); // default constructor not implemented - void parseDescription(const UnicodeString& ruleData, UErrorCode &status); - int32_t getNumberValue(const UnicodeString& token) const; - UnicodeString getRuleFromResource(const Locale& locale, UPluralType type, UErrorCode& status); - RuleChain *rulesForKeyword(const UnicodeString &keyword) const; - - /** - * An internal status variable used to indicate that the object is in an 'invalid' state. - * Used by copy constructor, the assignment operator and the clone method. - */ - UErrorCode mInternalStatus; - - friend class PluralRuleParser; -}; - -U_NAMESPACE_END - -#endif /* #if !UCONFIG_NO_FORMATTING */ - -#endif // _PLURRULE -//eof |