intl/icu/source/common/unicode/locid.h

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /*
     2 ******************************************************************************
     3 *
     4 *   Copyright (C) 1996-2013, International Business Machines
     5 *   Corporation and others.  All Rights Reserved.
     6 *
     7 ******************************************************************************
     8 *
     9 * File locid.h
    10 *
    11 * Created by: Helena Shih
    12 *
    13 * Modification History:
    14 *
    15 *   Date        Name        Description
    16 *   02/11/97    aliu        Changed gLocPath to fgLocPath and added methods to
    17 *                           get and set it.
    18 *   04/02/97    aliu        Made operator!= inline; fixed return value of getName().
    19 *   04/15/97    aliu        Cleanup for AIX/Win32.
    20 *   04/24/97    aliu        Numerous changes per code review.
    21 *   08/18/98    stephen     Added tokenizeString(),changed getDisplayName()
    22 *   09/08/98    stephen     Moved definition of kEmptyString for Mac Port
    23 *   11/09/99    weiv        Added const char * getName() const;
    24 *   04/12/00    srl         removing unicodestring api's and cached hash code
    25 *   08/10/01    grhoten     Change the static Locales to accessor functions
    26 ******************************************************************************
    27 */
    29 #ifndef LOCID_H
    30 #define LOCID_H
    32 #include "unicode/utypes.h"
    33 #include "unicode/uobject.h"
    34 #include "unicode/unistr.h"
    35 #include "unicode/putil.h"
    36 #include "unicode/uloc.h"
    37 #include "unicode/strenum.h"
    39 /**
    40  * \file
    41  * \brief C++ API: Locale ID object.
    42  */
    44 U_NAMESPACE_BEGIN
    46 // Forward Declarations
    47 void U_CALLCONV locale_available_init(); /**< @internal */
    49 /**
    50  * A <code>Locale</code> object represents a specific geographical, political,
    51  * or cultural region. An operation that requires a <code>Locale</code> to perform
    52  * its task is called <em>locale-sensitive</em> and uses the <code>Locale</code>
    53  * to tailor information for the user. For example, displaying a number
    54  * is a locale-sensitive operation--the number should be formatted
    55  * according to the customs/conventions of the user's native country,
    56  * region, or culture.
    57  *
    58  * The Locale class is not suitable for subclassing.
    59  *
    60  * <P>
    61  * You can create a <code>Locale</code> object using the constructor in
    62  * this class:
    63  * \htmlonly<blockquote>\endhtmlonly
    64  * <pre>
    65  *       Locale( const   char*  language,
    66  *               const   char*  country,
    67  *               const   char*  variant);
    68  * </pre>
    69  * \htmlonly</blockquote>\endhtmlonly
    70  * The first argument to the constructors is a valid <STRONG>ISO
    71  * Language Code.</STRONG> These codes are the lower-case two-letter
    72  * codes as defined by ISO-639.
    73  * You can find a full list of these codes at:
    74  * <BR><a href ="http://www.loc.gov/standards/iso639-2/">
    75  * http://www.loc.gov/standards/iso639-2/</a>
    76  *
    77  * <P>
    78  * The second argument to the constructors is a valid <STRONG>ISO Country
    79  * Code.</STRONG> These codes are the upper-case two-letter codes
    80  * as defined by ISO-3166.
    81  * You can find a full list of these codes at a number of sites, such as:
    82  * <BR><a href="http://www.iso.org/iso/en/prods-services/iso3166ma/index.html">
    83  * http://www.iso.org/iso/en/prods-services/iso3166ma/index.html</a>
    84  *
    85  * <P>
    86  * The third constructor requires a third argument--the <STRONG>Variant.</STRONG>
    87  * The Variant codes are vendor and browser-specific.
    88  * For example, use REVISED for a langauge's revised script orthography, and POSIX for POSIX.
    89  * Where there are two variants, separate them with an underscore, and
    90  * put the most important one first. For
    91  * example, a Traditional Spanish collation might be referenced, with
    92  * "ES", "ES", "Traditional_POSIX".
    93  *
    94  * <P>
    95  * Because a <code>Locale</code> object is just an identifier for a region,
    96  * no validity check is performed when you construct a <code>Locale</code>.
    97  * If you want to see whether particular resources are available for the
    98  * <code>Locale</code> you construct, you must query those resources. For
    99  * example, ask the <code>NumberFormat</code> for the locales it supports
   100  * using its <code>getAvailableLocales</code> method.
   101  * <BR><STRONG>Note:</STRONG> When you ask for a resource for a particular
   102  * locale, you get back the best available match, not necessarily
   103  * precisely what you asked for. For more information, look at
   104  * <code>ResourceBundle</code>.
   105  *
   106  * <P>
   107  * The <code>Locale</code> class provides a number of convenient constants
   108  * that you can use to create <code>Locale</code> objects for commonly used
   109  * locales. For example, the following refers to a <code>Locale</code> object
   110  * for the United States:
   111  * \htmlonly<blockquote>\endhtmlonly
   112  * <pre>
   113  *       Locale::getUS()
   114  * </pre>
   115  * \htmlonly</blockquote>\endhtmlonly
   116  *
   117  * <P>
   118  * Once you've created a <code>Locale</code> you can query it for information about
   119  * itself. Use <code>getCountry</code> to get the ISO Country Code and
   120  * <code>getLanguage</code> to get the ISO Language Code. You can
   121  * use <code>getDisplayCountry</code> to get the
   122  * name of the country suitable for displaying to the user. Similarly,
   123  * you can use <code>getDisplayLanguage</code> to get the name of
   124  * the language suitable for displaying to the user. Interestingly,
   125  * the <code>getDisplayXXX</code> methods are themselves locale-sensitive
   126  * and have two versions: one that uses the default locale and one
   127  * that takes a locale as an argument and displays the name or country in
   128  * a language appropriate to that locale.
   129  *
   130  * <P>
   131  * ICU provides a number of classes that perform locale-sensitive
   132  * operations. For example, the <code>NumberFormat</code> class formats
   133  * numbers, currency, or percentages in a locale-sensitive manner. Classes
   134  * such as <code>NumberFormat</code> have a number of convenience methods
   135  * for creating a default object of that type. For example, the
   136  * <code>NumberFormat</code> class provides these three convenience methods
   137  * for creating a default <code>NumberFormat</code> object:
   138  * \htmlonly<blockquote>\endhtmlonly
   139  * <pre>
   140  *     UErrorCode success = U_ZERO_ERROR;
   141  *     Locale myLocale;
   142  *     NumberFormat *nf;
   143  *
   144  *     nf = NumberFormat::createInstance( success );          delete nf;
   145  *     nf = NumberFormat::createCurrencyInstance( success );  delete nf;
   146  *     nf = NumberFormat::createPercentInstance( success );   delete nf;
   147  * </pre>
   148  * \htmlonly</blockquote>\endhtmlonly
   149  * Each of these methods has two variants; one with an explicit locale
   150  * and one without; the latter using the default locale.
   151  * \htmlonly<blockquote>\endhtmlonly
   152  * <pre>
   153  *     nf = NumberFormat::createInstance( myLocale, success );          delete nf;
   154  *     nf = NumberFormat::createCurrencyInstance( myLocale, success );  delete nf;
   155  *     nf = NumberFormat::createPercentInstance( myLocale, success );   delete nf;
   156  * </pre>
   157  * \htmlonly</blockquote>\endhtmlonly
   158  * A <code>Locale</code> is the mechanism for identifying the kind of object
   159  * (<code>NumberFormat</code>) that you would like to get. The locale is
   160  * <STRONG>just</STRONG> a mechanism for identifying objects,
   161  * <STRONG>not</STRONG> a container for the objects themselves.
   162  *
   163  * <P>
   164  * Each class that performs locale-sensitive operations allows you
   165  * to get all the available objects of that type. You can sift
   166  * through these objects by language, country, or variant,
   167  * and use the display names to present a menu to the user.
   168  * For example, you can create a menu of all the collation objects
   169  * suitable for a given language. Such classes implement these
   170  * three class methods:
   171  * \htmlonly<blockquote>\endhtmlonly
   172  * <pre>
   173  *       static Locale* getAvailableLocales(int32_t& numLocales)
   174  *       static UnicodeString& getDisplayName(const Locale&  objectLocale,
   175  *                                            const Locale&  displayLocale,
   176  *                                            UnicodeString& displayName)
   177  *       static UnicodeString& getDisplayName(const Locale&  objectLocale,
   178  *                                            UnicodeString& displayName)
   179  * </pre>
   180  * \htmlonly</blockquote>\endhtmlonly
   181  *
   182  * @stable ICU 2.0
   183  * @see ResourceBundle
   184  */
   185 class U_COMMON_API Locale : public UObject {
   186 public:
   187     /** Useful constant for the Root locale. @stable ICU 4.4 */
   188     static const Locale &U_EXPORT2 getRoot(void);
   189     /** Useful constant for this language. @stable ICU 2.0 */
   190     static const Locale &U_EXPORT2 getEnglish(void);
   191     /** Useful constant for this language. @stable ICU 2.0 */
   192     static const Locale &U_EXPORT2 getFrench(void);
   193     /** Useful constant for this language. @stable ICU 2.0 */
   194     static const Locale &U_EXPORT2 getGerman(void);
   195     /** Useful constant for this language. @stable ICU 2.0 */
   196     static const Locale &U_EXPORT2 getItalian(void);
   197     /** Useful constant for this language. @stable ICU 2.0 */
   198     static const Locale &U_EXPORT2 getJapanese(void);
   199     /** Useful constant for this language. @stable ICU 2.0 */
   200     static const Locale &U_EXPORT2 getKorean(void);
   201     /** Useful constant for this language. @stable ICU 2.0 */
   202     static const Locale &U_EXPORT2 getChinese(void);
   203     /** Useful constant for this language. @stable ICU 2.0 */
   204     static const Locale &U_EXPORT2 getSimplifiedChinese(void);
   205     /** Useful constant for this language. @stable ICU 2.0 */
   206     static const Locale &U_EXPORT2 getTraditionalChinese(void);
   208     /** Useful constant for this country/region. @stable ICU 2.0 */
   209     static const Locale &U_EXPORT2 getFrance(void);
   210     /** Useful constant for this country/region. @stable ICU 2.0 */
   211     static const Locale &U_EXPORT2 getGermany(void);
   212     /** Useful constant for this country/region. @stable ICU 2.0 */
   213     static const Locale &U_EXPORT2 getItaly(void);
   214     /** Useful constant for this country/region. @stable ICU 2.0 */
   215     static const Locale &U_EXPORT2 getJapan(void);
   216     /** Useful constant for this country/region. @stable ICU 2.0 */
   217     static const Locale &U_EXPORT2 getKorea(void);
   218     /** Useful constant for this country/region. @stable ICU 2.0 */
   219     static const Locale &U_EXPORT2 getChina(void);
   220     /** Useful constant for this country/region. @stable ICU 2.0 */
   221     static const Locale &U_EXPORT2 getPRC(void);
   222     /** Useful constant for this country/region. @stable ICU 2.0 */
   223     static const Locale &U_EXPORT2 getTaiwan(void);
   224     /** Useful constant for this country/region. @stable ICU 2.0 */
   225     static const Locale &U_EXPORT2 getUK(void);
   226     /** Useful constant for this country/region. @stable ICU 2.0 */
   227     static const Locale &U_EXPORT2 getUS(void);
   228     /** Useful constant for this country/region. @stable ICU 2.0 */
   229     static const Locale &U_EXPORT2 getCanada(void);
   230     /** Useful constant for this country/region. @stable ICU 2.0 */
   231     static const Locale &U_EXPORT2 getCanadaFrench(void);
   234     /**
   235      * Construct a default locale object, a Locale for the default locale ID.
   236      *
   237      * @see getDefault
   238      * @see uloc_getDefault
   239      * @stable ICU 2.0
   240      */
   241     Locale();
   243     /**
   244      * Construct a locale from language, country, variant.
   245      * If an error occurs, then the constructed object will be "bogus"
   246      * (isBogus() will return TRUE).
   247      *
   248      * @param language Lowercase two-letter or three-letter ISO-639 code.
   249      *  This parameter can instead be an ICU style C locale (e.g. "en_US"),
   250      *  but the other parameters must not be used.
   251      *  This parameter can be NULL; if so,
   252      *  the locale is initialized to match the current default locale.
   253      *  (This is the same as using the default constructor.)
   254      *  Please note: The Java Locale class does NOT accept the form
   255      *  'new Locale("en_US")' but only 'new Locale("en","US")'
   256      *
   257      * @param country  Uppercase two-letter ISO-3166 code. (optional)
   258      * @param variant  Uppercase vendor and browser specific code. See class
   259      *                 description. (optional)
   260      * @param keywordsAndValues A string consisting of keyword/values pairs, such as
   261      *                 "collation=phonebook;currency=euro"
   262      *
   263      * @see getDefault
   264      * @see uloc_getDefault
   265      * @stable ICU 2.0
   266      */
   267     Locale( const   char * language,
   268             const   char * country  = 0,
   269             const   char * variant  = 0,
   270             const   char * keywordsAndValues = 0);
   272     /**
   273      * Initializes a Locale object from another Locale object.
   274      *
   275      * @param other The Locale object being copied in.
   276      * @stable ICU 2.0
   277      */
   278     Locale(const    Locale& other);
   281     /**
   282      * Destructor
   283      * @stable ICU 2.0
   284      */
   285     virtual ~Locale() ;
   287     /**
   288      * Replaces the entire contents of *this with the specified value.
   289      *
   290      * @param other The Locale object being copied in.
   291      * @return      *this
   292      * @stable ICU 2.0
   293      */
   294     Locale& operator=(const Locale& other);
   296     /**
   297      * Checks if two locale keys are the same.
   298      *
   299      * @param other The locale key object to be compared with this.
   300      * @return      True if the two locale keys are the same, false otherwise.
   301      * @stable ICU 2.0
   302      */
   303     UBool   operator==(const    Locale&     other) const;
   305     /**
   306      * Checks if two locale keys are not the same.
   307      *
   308      * @param other The locale key object to be compared with this.
   309      * @return      True if the two locale keys are not the same, false
   310      *              otherwise.
   311      * @stable ICU 2.0
   312      */
   313     UBool   operator!=(const    Locale&     other) const;
   315     /**
   316      * Clone this object.
   317      * Clones can be used concurrently in multiple threads.
   318      * If an error occurs, then NULL is returned.
   319      * The caller must delete the clone.
   320      *
   321      * @return a clone of this object
   322      *
   323      * @see getDynamicClassID
   324      * @stable ICU 2.8
   325      */
   326     Locale *clone() const;
   328 #ifndef U_HIDE_SYSTEM_API
   329     /**
   330      * Common methods of getting the current default Locale. Used for the
   331      * presentation: menus, dialogs, etc. Generally set once when your applet or
   332      * application is initialized, then never reset. (If you do reset the
   333      * default locale, you probably want to reload your GUI, so that the change
   334      * is reflected in your interface.)
   335      *
   336      * More advanced programs will allow users to use different locales for
   337      * different fields, e.g. in a spreadsheet.
   338      *
   339      * Note that the initial setting will match the host system.
   340      * @return a reference to the Locale object for the default locale ID
   341      * @system
   342      * @stable ICU 2.0
   343      */
   344     static const Locale& U_EXPORT2 getDefault(void);
   346     /**
   347      * Sets the default. Normally set once at the beginning of a process,
   348      * then never reset.
   349      * setDefault() only changes ICU's default locale ID, <strong>not</strong>
   350      * the default locale ID of the runtime environment.
   351      *
   352      * @param newLocale Locale to set to.  If NULL, set to the value obtained
   353      *                  from the runtime environement.
   354      * @param success The error code.
   355      * @system
   356      * @stable ICU 2.0
   357      */
   358     static void U_EXPORT2 setDefault(const Locale& newLocale,
   359                                      UErrorCode&   success);
   360 #endif  /* U_HIDE_SYSTEM_API */
   362     /**
   363      * Creates a locale which has had minimal canonicalization
   364      * as per uloc_getName().
   365      * @param name The name to create from.  If name is null,
   366      *  the default Locale is used.
   367      * @return new locale object
   368      * @stable ICU 2.0
   369      * @see uloc_getName
   370      */
   371     static Locale U_EXPORT2 createFromName(const char *name);
   373     /**
   374      * Creates a locale from the given string after canonicalizing
   375      * the string by calling uloc_canonicalize().
   376      * @param name the locale ID to create from.  Must not be NULL.
   377      * @return a new locale object corresponding to the given name
   378      * @stable ICU 3.0
   379      * @see uloc_canonicalize
   380      */
   381     static Locale U_EXPORT2 createCanonical(const char* name);
   383     /**
   384      * Returns the locale's ISO-639 language code.
   385      * @return      An alias to the code
   386      * @stable ICU 2.0
   387      */
   388     inline const char *  getLanguage( ) const;
   390     /**
   391      * Returns the locale's ISO-15924 abbreviation script code.
   392      * @return      An alias to the code
   393      * @see uscript_getShortName
   394      * @see uscript_getCode
   395      * @stable ICU 2.8
   396      */
   397     inline const char *  getScript( ) const;
   399     /**
   400      * Returns the locale's ISO-3166 country code.
   401      * @return      An alias to the code
   402      * @stable ICU 2.0
   403      */
   404     inline const char *  getCountry( ) const;
   406     /**
   407      * Returns the locale's variant code.
   408      * @return      An alias to the code
   409      * @stable ICU 2.0
   410      */
   411     inline const char *  getVariant( ) const;
   413     /**
   414      * Returns the programmatic name of the entire locale, with the language,
   415      * country and variant separated by underbars. If a field is missing, up
   416      * to two leading underbars will occur. Example: "en", "de_DE", "en_US_WIN",
   417      * "de__POSIX", "fr__MAC", "__MAC", "_MT", "_FR_EURO"
   418      * @return      A pointer to "name".
   419      * @stable ICU 2.0
   420      */
   421     inline const char * getName() const;
   423     /**
   424      * Returns the programmatic name of the entire locale as getName() would return,
   425      * but without keywords.
   426      * @return      A pointer to "name".
   427      * @see getName
   428      * @stable ICU 2.8
   429      */
   430     const char * getBaseName() const;
   433     /**
   434      * Gets the list of keywords for the specified locale.
   435      *
   436      * @param status the status code
   437      * @return pointer to StringEnumeration class, or NULL if there are no keywords. 
   438      * Client must dispose of it by calling delete.
   439      * @stable ICU 2.8
   440      */
   441     StringEnumeration * createKeywords(UErrorCode &status) const;
   443     /**
   444      * Gets the value for a keyword.
   445      *
   446      * @param keywordName name of the keyword for which we want the value. Case insensitive.
   447      * @param buffer The buffer to receive the keyword value.
   448      * @param bufferCapacity The capacity of receiving buffer
   449      * @param status Returns any error information while performing this operation.
   450      * @return the length of the keyword value
   451      *
   452      * @stable ICU 2.8
   453      */
   454     int32_t getKeywordValue(const char* keywordName, char *buffer, int32_t bufferCapacity, UErrorCode &status) const;
   456     /**
   457      * Sets or removes the value for a keyword.
   458      *
   459      * For removing all keywords, use getBaseName(),
   460      * and construct a new Locale if it differs from getName().
   461      *
   462      * @param keywordName name of the keyword to be set. Case insensitive.
   463      * @param keywordValue value of the keyword to be set. If 0-length or
   464      *  NULL, will result in the keyword being removed. No error is given if
   465      *  that keyword does not exist.
   466      * @param status Returns any error information while performing this operation.
   467      *
   468      * @stable ICU 49
   469      */
   470     void setKeywordValue(const char* keywordName, const char* keywordValue, UErrorCode &status);
   472     /**
   473      * returns the locale's three-letter language code, as specified
   474      * in ISO draft standard ISO-639-2.
   475      * @return      An alias to the code, or an empty string
   476      * @stable ICU 2.0
   477      */
   478     const char * getISO3Language() const;
   480     /**
   481      * Fills in "name" with the locale's three-letter ISO-3166 country code.
   482      * @return      An alias to the code, or an empty string
   483      * @stable ICU 2.0
   484      */
   485     const char * getISO3Country() const;
   487     /**
   488      * Returns the Windows LCID value corresponding to this locale.
   489      * This value is stored in the resource data for the locale as a one-to-four-digit
   490      * hexadecimal number.  If the resource is missing, in the wrong format, or
   491      * there is no Windows LCID value that corresponds to this locale, returns 0.
   492      * @stable ICU 2.0
   493      */
   494     uint32_t        getLCID(void) const;
   496     /**
   497      * Fills in "dispLang" with the name of this locale's language in a format suitable for
   498      * user display in the default locale.  For example, if the locale's language code is
   499      * "fr" and the default locale's language code is "en", this function would set
   500      * dispLang to "French".
   501      * @param dispLang  Receives the language's display name.
   502      * @return          A reference to "dispLang".
   503      * @stable ICU 2.0
   504      */
   505     UnicodeString&  getDisplayLanguage(UnicodeString&   dispLang) const;
   507     /**
   508      * Fills in "dispLang" with the name of this locale's language in a format suitable for
   509      * user display in the locale specified by "displayLocale".  For example, if the locale's
   510      * language code is "en" and displayLocale's language code is "fr", this function would set
   511      * dispLang to "Anglais".
   512      * @param displayLocale  Specifies the locale to be used to display the name.  In other words,
   513      *                  if the locale's language code is "en", passing Locale::getFrench() for
   514      *                  displayLocale would result in "Anglais", while passing Locale::getGerman()
   515      *                  for displayLocale would result in "Englisch".
   516      * @param dispLang  Receives the language's display name.
   517      * @return          A reference to "dispLang".
   518      * @stable ICU 2.0
   519      */
   520     UnicodeString&  getDisplayLanguage( const   Locale&         displayLocale,
   521                                                 UnicodeString&  dispLang) const;
   523     /**
   524      * Fills in "dispScript" with the name of this locale's script in a format suitable
   525      * for user display in the default locale.  For example, if the locale's script code
   526      * is "LATN" and the default locale's language code is "en", this function would set
   527      * dispScript to "Latin".
   528      * @param dispScript    Receives the scripts's display name.
   529      * @return              A reference to "dispScript".
   530      * @stable ICU 2.8
   531      */
   532     UnicodeString&  getDisplayScript(          UnicodeString& dispScript) const;
   534     /**
   535      * Fills in "dispScript" with the name of this locale's country in a format suitable
   536      * for user display in the locale specified by "displayLocale".  For example, if the locale's
   537      * script code is "LATN" and displayLocale's language code is "en", this function would set
   538      * dispScript to "Latin".
   539      * @param displayLocale      Specifies the locale to be used to display the name.  In other
   540      *                      words, if the locale's script code is "LATN", passing
   541      *                      Locale::getFrench() for displayLocale would result in "", while
   542      *                      passing Locale::getGerman() for displayLocale would result in
   543      *                      "".
   544      * @param dispScript    Receives the scripts's display name.
   545      * @return              A reference to "dispScript".
   546      * @stable ICU 2.8
   547      */
   548     UnicodeString&  getDisplayScript(  const   Locale&         displayLocale,
   549                                                UnicodeString&  dispScript) const;
   551     /**
   552      * Fills in "dispCountry" with the name of this locale's country in a format suitable
   553      * for user display in the default locale.  For example, if the locale's country code
   554      * is "FR" and the default locale's language code is "en", this function would set
   555      * dispCountry to "France".
   556      * @param dispCountry   Receives the country's display name.
   557      * @return              A reference to "dispCountry".
   558      * @stable ICU 2.0
   559      */
   560     UnicodeString&  getDisplayCountry(          UnicodeString& dispCountry) const;
   562     /**
   563      * Fills in "dispCountry" with the name of this locale's country in a format suitable
   564      * for user display in the locale specified by "displayLocale".  For example, if the locale's
   565      * country code is "US" and displayLocale's language code is "fr", this function would set
   566      * dispCountry to "&Eacute;tats-Unis".
   567      * @param displayLocale      Specifies the locale to be used to display the name.  In other
   568      *                      words, if the locale's country code is "US", passing
   569      *                      Locale::getFrench() for displayLocale would result in "&Eacute;tats-Unis", while
   570      *                      passing Locale::getGerman() for displayLocale would result in
   571      *                      "Vereinigte Staaten".
   572      * @param dispCountry   Receives the country's display name.
   573      * @return              A reference to "dispCountry".
   574      * @stable ICU 2.0
   575      */
   576     UnicodeString&  getDisplayCountry(  const   Locale&         displayLocale,
   577                                                 UnicodeString&  dispCountry) const;
   579     /**
   580      * Fills in "dispVar" with the name of this locale's variant code in a format suitable
   581      * for user display in the default locale.
   582      * @param dispVar   Receives the variant's name.
   583      * @return          A reference to "dispVar".
   584      * @stable ICU 2.0
   585      */
   586     UnicodeString&  getDisplayVariant(      UnicodeString& dispVar) const;
   588     /**
   589      * Fills in "dispVar" with the name of this locale's variant code in a format
   590      * suitable for user display in the locale specified by "displayLocale".
   591      * @param displayLocale  Specifies the locale to be used to display the name.
   592      * @param dispVar   Receives the variant's display name.
   593      * @return          A reference to "dispVar".
   594      * @stable ICU 2.0
   595      */
   596     UnicodeString&  getDisplayVariant(  const   Locale&         displayLocale,
   597                                                 UnicodeString&  dispVar) const;
   599     /**
   600      * Fills in "name" with the name of this locale in a format suitable for user display
   601      * in the default locale.  This function uses getDisplayLanguage(), getDisplayCountry(),
   602      * and getDisplayVariant() to do its work, and outputs the display name in the format
   603      * "language (country[,variant])".  For example, if the default locale is en_US, then
   604      * fr_FR's display name would be "French (France)", and es_MX_Traditional's display name
   605      * would be "Spanish (Mexico,Traditional)".
   606      * @param name  Receives the locale's display name.
   607      * @return      A reference to "name".
   608      * @stable ICU 2.0
   609      */
   610     UnicodeString&  getDisplayName(         UnicodeString&  name) const;
   612     /**
   613      * Fills in "name" with the name of this locale in a format suitable for user display
   614      * in the locale specfied by "displayLocale".  This function uses getDisplayLanguage(),
   615      * getDisplayCountry(), and getDisplayVariant() to do its work, and outputs the display
   616      * name in the format "language (country[,variant])".  For example, if displayLocale is
   617      * fr_FR, then en_US's display name would be "Anglais (&Eacute;tats-Unis)", and no_NO_NY's
   618      * display name would be "norv&eacute;gien (Norv&egrave;ge,NY)".
   619      * @param displayLocale  Specifies the locale to be used to display the name.
   620      * @param name      Receives the locale's display name.
   621      * @return          A reference to "name".
   622      * @stable ICU 2.0
   623      */
   624     UnicodeString&  getDisplayName( const   Locale&         displayLocale,
   625                                             UnicodeString&  name) const;
   627     /**
   628      * Generates a hash code for the locale.
   629      * @stable ICU 2.0
   630      */
   631     int32_t         hashCode(void) const;
   633     /**
   634      * Sets the locale to bogus
   635      * A bogus locale represents a non-existing locale associated
   636      * with services that can be instantiated from non-locale data
   637      * in addition to locale (for example, collation can be
   638      * instantiated from a locale and from a rule set).
   639      * @stable ICU 2.1
   640      */
   641     void setToBogus();
   643     /**
   644      * Gets the bogus state. Locale object can be bogus if it doesn't exist
   645      * @return FALSE if it is a real locale, TRUE if it is a bogus locale
   646      * @stable ICU 2.1
   647      */
   648     UBool isBogus(void) const;
   650     /**
   651      * Returns a list of all installed locales.
   652      * @param count Receives the number of locales in the list.
   653      * @return      A pointer to an array of Locale objects.  This array is the list
   654      *              of all locales with installed resource files.  The called does NOT
   655      *              get ownership of this list, and must NOT delete it.
   656      * @stable ICU 2.0
   657      */
   658     static const Locale* U_EXPORT2 getAvailableLocales(int32_t& count);
   660     /**
   661      * Gets a list of all available 2-letter country codes defined in ISO 3166.  This is a
   662      * pointer to an array of pointers to arrays of char.  All of these pointers are
   663      * owned by ICU-- do not delete them, and do not write through them.  The array is
   664      * terminated with a null pointer.
   665      * @return a list of all available country codes
   666      * @stable ICU 2.0
   667      */
   668     static const char* const* U_EXPORT2 getISOCountries();
   670     /**
   671      * Gets a list of all available language codes defined in ISO 639.  This is a pointer
   672      * to an array of pointers to arrays of char.  All of these pointers are owned
   673      * by ICU-- do not delete them, and do not write through them.  The array is
   674      * terminated with a null pointer.
   675      * @return a list of all available language codes
   676      * @stable ICU 2.0
   677      */
   678     static const char* const* U_EXPORT2 getISOLanguages();
   680     /**
   681      * ICU "poor man's RTTI", returns a UClassID for this class.
   682      *
   683      * @stable ICU 2.2
   684      */
   685     static UClassID U_EXPORT2 getStaticClassID();
   687     /**
   688      * ICU "poor man's RTTI", returns a UClassID for the actual class.
   689      *
   690      * @stable ICU 2.2
   691      */
   692     virtual UClassID getDynamicClassID() const;
   694 protected: /* only protected for testing purposes. DO NOT USE. */
   695 #ifndef U_HIDE_INTERNAL_API
   696     /**
   697      * Set this from a single POSIX style locale string.
   698      * @internal
   699      */
   700     void setFromPOSIXID(const char *posixID);
   701 #endif  /* U_HIDE_INTERNAL_API */
   703 private:
   704     /**
   705      * Initialize the locale object with a new name.
   706      * Was deprecated - used in implementation - moved internal
   707      *
   708      * @param cLocaleID The new locale name.
   709      * @param canonicalize whether to call uloc_canonicalize on cLocaleID
   710      */
   711     Locale& init(const char* cLocaleID, UBool canonicalize);
   713     /*
   714      * Internal constructor to allow construction of a locale object with
   715      *   NO side effects.   (Default constructor tries to get
   716      *   the default locale.)
   717      */
   718     enum ELocaleType {
   719         eBOGUS
   720     };
   721     Locale(ELocaleType);
   723     /**
   724      * Initialize the locale cache for commonly used locales
   725      */
   726     static Locale *getLocaleCache(void);
   728     char language[ULOC_LANG_CAPACITY];
   729     char script[ULOC_SCRIPT_CAPACITY];
   730     char country[ULOC_COUNTRY_CAPACITY];
   731     int32_t variantBegin;
   732     char* fullName;
   733     char fullNameBuffer[ULOC_FULLNAME_CAPACITY];
   734     // name without keywords
   735     char* baseName;
   736     char baseNameBuffer[ULOC_FULLNAME_CAPACITY];
   738     UBool fIsBogus;
   740     static const Locale &getLocale(int locid);
   742     /**
   743      * A friend to allow the default locale to be set by either the C or C++ API.
   744      * @internal
   745      */
   746     friend Locale *locale_set_default_internal(const char *, UErrorCode& status);
   748     /**
   749      * @internal
   750      */
   751     friend void locale_available_init();
   752 };
   754 inline UBool
   755 Locale::operator!=(const    Locale&     other) const
   756 {
   757     return !operator==(other);
   758 }
   760 inline const char *
   761 Locale::getCountry() const
   762 {
   763     return country;
   764 }
   766 inline const char *
   767 Locale::getLanguage() const
   768 {
   769     return language;
   770 }
   772 inline const char *
   773 Locale::getScript() const
   774 {
   775     return script;
   776 }
   778 inline const char *
   779 Locale::getVariant() const
   780 {
   781     getBaseName(); // lazy init
   782     return &baseName[variantBegin];
   783 }
   785 inline const char *
   786 Locale::getName() const
   787 {
   788     return fullName;
   789 }
   791 inline UBool
   792 Locale::isBogus(void) const {
   793     return fIsBogus;
   794 }
   796 U_NAMESPACE_END
   798 #endif

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