golden hour

/opt/alt/libicu65/usr/include/unicode

File/Folder	Size	Actions
alphaindex.h	26.48 KB
appendable.h	8.49 KB
basictz.h	9.15 KB
brkiter.h	27.8 KB
bytestream.h	9.6 KB
bytestrie.h	20.77 KB
bytestriebuilder.h	7.08 KB
calendar.h	105.74 KB
caniter.h	7.43 KB
casemap.h	25.33 KB
char16ptr.h	7.22 KB
chariter.h	24.05 KB
choicfmt.h	23.91 KB
coleitr.h	13.76 KB
coll.h	56.23 KB
compactdecimalformat.h	6.88 KB
curramt.h	3.76 KB
currpinf.h	7.3 KB
currunit.h	4.05 KB
datefmt.h	40.67 KB
dbbi.h	1.19 KB
dcfmtsym.h	20.13 KB
decimfmt.h	87.38 KB
docmain.h	6.97 KB
dtfmtsym.h	37.7 KB
dtintrv.h	3.84 KB
dtitvfmt.h	46.63 KB
dtitvinf.h	18.51 KB
dtptngen.h	25.08 KB
dtrule.h	8.68 KB
edits.h	20.74 KB
enumset.h	2.08 KB
errorcode.h	4.84 KB
fieldpos.h	8.69 KB
filteredbrk.h	5.37 KB
fmtable.h	24.42 KB
format.h	12.5 KB
formattedvalue.h	10.27 KB
fpositer.h	3.04 KB
gender.h	3.33 KB
gregocal.h	31.71 KB
icudataver.h	1.03 KB
icuplug.h	11.88 KB
idna.h	12.7 KB
listformatter.h	9.47 KB
localebuilder.h	11.27 KB
localematcher.h	22.5 KB
localpointer.h	19.69 KB
locdspnm.h	7.12 KB
locid.h	47.4 KB
measfmt.h	11.33 KB
measunit.h	93.31 KB
measure.h	4.32 KB
messagepattern.h	33.71 KB
msgfmt.h	44.11 KB
normalizer2.h	34.03 KB
normlzr.h	30.94 KB
nounit.h	2.69 KB
numberformatter.h	86.31 KB
numberrangeformatter.h	30.14 KB
numfmt.h	49.81 KB
numsys.h	7.19 KB
parseerr.h	3.08 KB
parsepos.h	5.56 KB
platform.h	28.08 KB
plurfmt.h	25.2 KB
plurrule.h	18.39 KB
ptypes.h	3.49 KB
putil.h	6.33 KB
rbbi.h	26.58 KB
rbnf.h	48.73 KB
rbtz.h	15.6 KB
regex.h	84.36 KB
region.h	9.18 KB
reldatefmt.h	22.62 KB
rep.h	9.37 KB
resbund.h	18.07 KB
schriter.h	6.32 KB
scientificnumberformatter.h	6.4 KB
search.h	22.22 KB
selfmt.h	14.3 KB
simpleformatter.h	12.59 KB
simpletz.h	45.44 KB
smpdtfmt.h	70.97 KB
sortkey.h	11.18 KB
std_string.h	1.05 KB
strenum.h	9.92 KB
stringoptions.h	5.79 KB
stringpiece.h	7.38 KB
stringtriebuilder.h	15.33 KB
stsearch.h	21.3 KB
symtable.h	4.27 KB
tblcoll.h	36.61 KB
timezone.h	41.02 KB
tmunit.h	3.38 KB
tmutamt.h	4.9 KB
tmutfmt.h	7.85 KB
translit.h	65.82 KB
tzfmt.h	42.89 KB
tznames.h	16.85 KB
tzrule.h	35.37 KB
tztrans.h	6.12 KB
ubidi.h	89.56 KB
ubiditransform.h	12.65 KB
ubrk.h	23.97 KB
ucal.h	56.9 KB
ucasemap.h	15.18 KB
ucat.h	5.36 KB
uchar.h	140.56 KB
ucharstrie.h	22.58 KB
ucharstriebuilder.h	7.21 KB
uchriter.h	13.2 KB
uclean.h	11.21 KB
ucnv.h	83.09 KB
ucnv_cb.h	6.59 KB
ucnv_err.h	20.99 KB
ucnvsel.h	6.14 KB
ucol.h	61.46 KB
ucoleitr.h	9.46 KB
uconfig.h	12.07 KB
ucpmap.h	5.53 KB
ucptrie.h	22.46 KB
ucsdet.h	14.67 KB
ucurr.h	16.12 KB
udat.h	60.88 KB
udata.h	15.56 KB
udateintervalformat.h	10.03 KB
udatpg.h	26.01 KB
udisplaycontext.h	5.89 KB
uenum.h	7.78 KB
ufieldpositer.h	4.36 KB
uformattable.h	10.94 KB
uformattedvalue.h	12.14 KB
ugender.h	2 KB
uidna.h	33.37 KB
uiter.h	22.77 KB
uldnames.h	10.45 KB
ulistformatter.h	8.83 KB
uloc.h	52.54 KB
ulocdata.h	11.26 KB
umachine.h	14.53 KB
umisc.h	1.33 KB
umsg.h	24.23 KB
umutablecptrie.h	8.24 KB
unifilt.h	3.96 KB
unifunct.h	4.04 KB
unimatch.h	6.1 KB
unirepl.h	3.38 KB
uniset.h	64.9 KB
unistr.h	170.43 KB
unorm.h	20.52 KB
unorm2.h	24.66 KB
unum.h	53.62 KB
unumberformatter.h	25.36 KB
unumsys.h	7.21 KB
uobject.h	10.68 KB
upluralrules.h	7.88 KB
uregex.h	72.05 KB
uregion.h	9.84 KB
ureldatefmt.h	17.26 KB
urename.h	130.97 KB
urep.h	5.38 KB
ures.h	36.54 KB
uscript.h	26.87 KB
usearch.h	38.12 KB
uset.h	40 KB
usetiter.h	9.55 KB
ushape.h	18 KB
uspoof.h	65.9 KB
usprep.h	8.14 KB
ustdio.h	38.54 KB
ustream.h	1.89 KB
ustring.h	72.47 KB
ustringtrie.h	3.15 KB
utext.h	58.13 KB
utf.h	7.86 KB
utf16.h	23.32 KB
utf32.h	763 B
utf8.h	30.96 KB
utf_old.h	45.83 KB
utmscale.h	13.78 KB
utrace.h	15.73 KB
utrans.h	25.52 KB
utypes.h	30.74 KB
uvernum.h	6.67 KB
uversion.h	6 KB
vtzone.h	20.3 KB

Edit: locid.h

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
******************************************************************************
*
*   Copyright (C) 1996-2015, International Business Machines
*   Corporation and others.  All Rights Reserved.
*
******************************************************************************
*
* File locid.h
*
* Created by: Helena Shih
*
* Modification History:
*
*   Date        Name        Description
*   02/11/97    aliu        Changed gLocPath to fgLocPath and added methods to
*                           get and set it.
*   04/02/97    aliu        Made operator!= inline; fixed return value of getName().
*   04/15/97    aliu        Cleanup for AIX/Win32.
*   04/24/97    aliu        Numerous changes per code review.
*   08/18/98    stephen     Added tokenizeString(),changed getDisplayName()
*   09/08/98    stephen     Moved definition of kEmptyString for Mac Port
*   11/09/99    weiv        Added const char * getName() const;
*   04/12/00    srl         removing unicodestring api's and cached hash code
*   08/10/01    grhoten     Change the static Locales to accessor functions
******************************************************************************
*/

#ifndef LOCID_H
#define LOCID_H

#include "unicode/utypes.h"

#if U_SHOW_CPLUSPLUS_API

#include "unicode/bytestream.h"
#include "unicode/localpointer.h"
#include "unicode/strenum.h"
#include "unicode/stringpiece.h"
#include "unicode/uobject.h"
#include "unicode/putil.h"
#include "unicode/uloc.h"

/**
 * \file
 * \brief C++ API: Locale ID object.
 */

U_NAMESPACE_BEGIN

// Forward Declarations
void U_CALLCONV locale_available_init(); /**< @internal */

class StringEnumeration;
class UnicodeString;

/**
 * A <code>Locale</code> object represents a specific geographical, political,
 * or cultural region. An operation that requires a <code>Locale</code> to perform
 * its task is called locale-sensitive and uses the <code>Locale</code>
 * to tailor information for the user. For example, displaying a number
 * is a locale-sensitive operation--the number should be formatted
 * according to the customs/conventions of the user's native country,
 * region, or culture.
 *
 * The Locale class is not suitable for subclassing.
 *
 * 
 * You can create a <code>Locale</code> object using the constructor in
 * this class:
 * \htmlonly<blockquote>\endhtmlonly
 * <pre>
 * Locale( const char* language,
 * const char* country,
 * const char* variant);
 * </pre>
 * \htmlonly</blockquote>\endhtmlonly
 * The first argument to the constructors is a valid ISO
 * Language Code. These codes are the lower-case two-letter
 * codes as defined by ISO-639.
 * You can find a full list of these codes at:
 * <a href ="http://www.loc.gov/standards/iso639-2/">
 * http://www.loc.gov/standards/iso639-2/</a>
 *
 * 
 * The second argument to the constructors is a valid ISO Country
 * Code. These codes are the upper-case two-letter codes
 * as defined by ISO-3166.
 * You can find a full list of these codes at a number of sites, such as:
 * <a href="http://www.iso.org/iso/en/prods-services/iso3166ma/index.html">
 * http://www.iso.org/iso/en/prods-services/iso3166ma/index.html</a>
 *
 * 
 * The third constructor requires a third argument--the Variant.
 * The Variant codes are vendor and browser-specific.
 * For example, use REVISED for a language's revised script orthography, and POSIX for POSIX.
 * Where there are two variants, separate them with an underscore, and
 * put the most important one first. For
 * example, a Traditional Spanish collation might be referenced, with
 * "ES", "ES", "Traditional_POSIX".
 *
 * 
 * Because a <code>Locale</code> object is just an identifier for a region,
 * no validity check is performed when you construct a <code>Locale</code>.
 * If you want to see whether particular resources are available for the
 * <code>Locale</code> you construct, you must query those resources. For
 * example, ask the <code>NumberFormat</code> for the locales it supports
 * using its <code>getAvailableLocales</code> method.
 * Note: When you ask for a resource for a particular
 * locale, you get back the best available match, not necessarily
 * precisely what you asked for. For more information, look at
 * <code>ResourceBundle</code>.
 *
 * 
 * The <code>Locale</code> class provides a number of convenient constants
 * that you can use to create <code>Locale</code> objects for commonly used
 * locales. For example, the following refers to a <code>Locale</code> object
 * for the United States:
 * \htmlonly<blockquote>\endhtmlonly
 * <pre>
 * Locale::getUS()
 * </pre>
 * \htmlonly</blockquote>\endhtmlonly
 *
 * 
 * Once you've created a <code>Locale</code> you can query it for information about
 * itself. Use <code>getCountry</code> to get the ISO Country Code and
 * <code>getLanguage</code> to get the ISO Language Code. You can
 * use <code>getDisplayCountry</code> to get the
 * name of the country suitable for displaying to the user. Similarly,
 * you can use <code>getDisplayLanguage</code> to get the name of
 * the language suitable for displaying to the user. Interestingly,
 * the <code>getDisplayXXX</code> methods are themselves locale-sensitive
 * and have two versions: one that uses the default locale and one
 * that takes a locale as an argument and displays the name or country in
 * a language appropriate to that locale.
 *
 * 
 * ICU provides a number of classes that perform locale-sensitive
 * operations. For example, the <code>NumberFormat</code> class formats
 * numbers, currency, or percentages in a locale-sensitive manner. Classes
 * such as <code>NumberFormat</code> have a number of convenience methods
 * for creating a default object of that type. For example, the
 * <code>NumberFormat</code> class provides these three convenience methods
 * for creating a default <code>NumberFormat</code> object:
 * \htmlonly<blockquote>\endhtmlonly
 * <pre>
 * UErrorCode success = U_ZERO_ERROR;
 * Locale myLocale;
 * NumberFormat *nf;
 *
 * nf = NumberFormat::createInstance( success ); delete nf;
 * nf = NumberFormat::createCurrencyInstance( success ); delete nf;
 * nf = NumberFormat::createPercentInstance( success ); delete nf;
 * </pre>
 * \htmlonly</blockquote>\endhtmlonly
 * Each of these methods has two variants; one with an explicit locale
 * and one without; the latter using the default locale.
 * \htmlonly<blockquote>\endhtmlonly
 * <pre>
 * nf = NumberFormat::createInstance( myLocale, success ); delete nf;
 * nf = NumberFormat::createCurrencyInstance( myLocale, success ); delete nf;
 * nf = NumberFormat::createPercentInstance( myLocale, success ); delete nf;
 * </pre>
 * \htmlonly</blockquote>\endhtmlonly
 * A <code>Locale</code> is the mechanism for identifying the kind of object
 * (<code>NumberFormat</code>) that you would like to get. The locale is
 * just a mechanism for identifying objects,
 * not a container for the objects themselves.
 *
 * 
 * Each class that performs locale-sensitive operations allows you
 * to get all the available objects of that type. You can sift
 * through these objects by language, country, or variant,
 * and use the display names to present a menu to the user.
 * For example, you can create a menu of all the collation objects
 * suitable for a given language. Such classes implement these
 * three class methods:
 * \htmlonly<blockquote>\endhtmlonly
 * <pre>
 * static Locale* getAvailableLocales(int32_t& numLocales)
 * static UnicodeString& getDisplayName(const Locale& objectLocale,
 * const Locale& displayLocale,
 * UnicodeString& displayName)
 * static UnicodeString& getDisplayName(const Locale& objectLocale,
 * UnicodeString& displayName)
 * </pre>
 * \htmlonly</blockquote>\endhtmlonly
 *
 * @stable ICU 2.0
 * @see ResourceBundle
 */
class U_COMMON_API Locale : public UObject {
public:
 /** Useful constant for the Root locale. @stable ICU 4.4 */
 static const Locale &U_EXPORT2 getRoot(void);
 /** Useful constant for this language. @stable ICU 2.0 */
 static const Locale &U_EXPORT2 getEnglish(void);
 /** Useful constant for this language. @stable ICU 2.0 */
 static const Locale &U_EXPORT2 getFrench(void);
 /** Useful constant for this language. @stable ICU 2.0 */
 static const Locale &U_EXPORT2 getGerman(void);
 /** Useful constant for this language. @stable ICU 2.0 */
 static const Locale &U_EXPORT2 getItalian(void);
 /** Useful constant for this language. @stable ICU 2.0 */
 static const Locale &U_EXPORT2 getJapanese(void);
 /** Useful constant for this language. @stable ICU 2.0 */
 static const Locale &U_EXPORT2 getKorean(void);
 /** Useful constant for this language. @stable ICU 2.0 */
 static const Locale &U_EXPORT2 getChinese(void);
 /** Useful constant for this language. @stable ICU 2.0 */
 static const Locale &U_EXPORT2 getSimplifiedChinese(void);
 /** Useful constant for this language. @stable ICU 2.0 */
 static const Locale &U_EXPORT2 getTraditionalChinese(void);

/** Useful constant for this country/region. @stable ICU 2.0 */
    static const Locale &U_EXPORT2 getFrance(void);
    /** Useful constant for this country/region. @stable ICU 2.0 */
    static const Locale &U_EXPORT2 getGermany(void);
    /** Useful constant for this country/region. @stable ICU 2.0 */
    static const Locale &U_EXPORT2 getItaly(void);
    /** Useful constant for this country/region. @stable ICU 2.0 */
    static const Locale &U_EXPORT2 getJapan(void);
    /** Useful constant for this country/region. @stable ICU 2.0 */
    static const Locale &U_EXPORT2 getKorea(void);
    /** Useful constant for this country/region. @stable ICU 2.0 */
    static const Locale &U_EXPORT2 getChina(void);
    /** Useful constant for this country/region. @stable ICU 2.0 */
    static const Locale &U_EXPORT2 getPRC(void);
    /** Useful constant for this country/region. @stable ICU 2.0 */
    static const Locale &U_EXPORT2 getTaiwan(void);
    /** Useful constant for this country/region. @stable ICU 2.0 */
    static const Locale &U_EXPORT2 getUK(void);
    /** Useful constant for this country/region. @stable ICU 2.0 */
    static const Locale &U_EXPORT2 getUS(void);
    /** Useful constant for this country/region. @stable ICU 2.0 */
    static const Locale &U_EXPORT2 getCanada(void);
    /** Useful constant for this country/region. @stable ICU 2.0 */
    static const Locale &U_EXPORT2 getCanadaFrench(void);

/**
     * Construct a default locale object, a Locale for the default locale ID.
     *
     * @see getDefault
     * @see uloc_getDefault
     * @stable ICU 2.0
     */
    Locale();

/**
     * Construct a locale from language, country, variant.
     * If an error occurs, then the constructed object will be "bogus"
     * (isBogus() will return TRUE).
     *
     * @param language Lowercase two-letter or three-letter ISO-639 code.
     *  This parameter can instead be an ICU style C locale (e.g. "en_US"),
     *  but the other parameters must not be used.
     *  This parameter can be NULL; if so,
     *  the locale is initialized to match the current default locale.
     *  (This is the same as using the default constructor.)
     *  Please note: The Java Locale class does NOT accept the form
     *  'new Locale("en_US")' but only 'new Locale("en","US")'
     *
     * @param country  Uppercase two-letter ISO-3166 code. (optional)
     * @param variant  Uppercase vendor and browser specific code. See class
     *                 description. (optional)
     * @param keywordsAndValues A string consisting of keyword/values pairs, such as
     *                 "collation=phonebook;currency=euro"
     *
     * @see getDefault
     * @see uloc_getDefault
     * @stable ICU 2.0
     */
    Locale( const   char * language,
            const   char * country  = 0,
            const   char * variant  = 0,
            const   char * keywordsAndValues = 0);

/**
     * Initializes a Locale object from another Locale object.
     *
     * @param other The Locale object being copied in.
     * @stable ICU 2.0
     */
    Locale(const    Locale& other);

/**
     * Move constructor; might leave source in bogus state.
     * This locale will have the same contents that the source locale had.
     *
     * @param other The Locale object being moved in.
     * @stable ICU 63
     */
    Locale(Locale&& other) U_NOEXCEPT;

/**
     * Destructor
     * @stable ICU 2.0
     */
    virtual ~Locale() ;

/**
     * Replaces the entire contents of *this with the specified value.
     *
     * @param other The Locale object being copied in.
     * @return      *this
     * @stable ICU 2.0
     */
    Locale& operator=(const Locale& other);

/**
     * Move assignment operator; might leave source in bogus state.
     * This locale will have the same contents that the source locale had.
     * The behavior is undefined if *this and the source are the same object.
     *
     * @param other The Locale object being moved in.
     * @return      *this
     * @stable ICU 63
     */
    Locale& operator=(Locale&& other) U_NOEXCEPT;

/**
     * Checks if two locale keys are the same.
     *
     * @param other The locale key object to be compared with this.
     * @return      True if the two locale keys are the same, false otherwise.
     * @stable ICU 2.0
     */
    UBool   operator==(const    Locale&     other) const;

/**
     * Checks if two locale keys are not the same.
     *
     * @param other The locale key object to be compared with this.
     * @return      True if the two locale keys are not the same, false
     *              otherwise.
     * @stable ICU 2.0
     */
    inline UBool   operator!=(const    Locale&     other) const;

/**
     * Clone this object.
     * Clones can be used concurrently in multiple threads.
     * If an error occurs, then NULL is returned.
     * The caller must delete the clone.
     *
     * @return a clone of this object
     *
     * @see getDynamicClassID
     * @stable ICU 2.8
     */
    Locale *clone() const;

#ifndef U_HIDE_SYSTEM_API
    /**
     * Common methods of getting the current default Locale. Used for the
     * presentation: menus, dialogs, etc. Generally set once when your applet or
     * application is initialized, then never reset. (If you do reset the
     * default locale, you probably want to reload your GUI, so that the change
     * is reflected in your interface.)
     *
     * More advanced programs will allow users to use different locales for
     * different fields, e.g. in a spreadsheet.
     *
     * Note that the initial setting will match the host system.
     * @return a reference to the Locale object for the default locale ID
     * @system
     * @stable ICU 2.0
     */
    static const Locale& U_EXPORT2 getDefault(void);

/**
 * Sets the default. Normally set once at the beginning of a process,
 * then never reset.
 * setDefault() only changes ICU's default locale ID, not
 * the default locale ID of the runtime environment.
 *
 * @param newLocale Locale to set to. If NULL, set to the value obtained
 * from the runtime environment.
 * @param success The error code.
 * @system
 * @stable ICU 2.0
 */
 static void U_EXPORT2 setDefault(const Locale& newLocale,
 UErrorCode& success);
#endif /* U_HIDE_SYSTEM_API */

/**
 * Returns a Locale for the specified BCP47 language tag string.
 * If the specified language tag contains any ill-formed subtags,
 * the first such subtag and all following subtags are ignored.
 * 
 * This implements the 'Language-Tag' production of BCP47, and so
 * supports grandfathered (regular and irregular) as well as private
 * use language tags. Private use tags are represented as 'x-whatever',
 * and grandfathered tags are converted to their canonical replacements
 * where they exist. Note that a few grandfathered tags have no modern
 * replacement, these will be converted using the fallback described in
 * the first paragraph, so some information might be lost.
 * @param tag the input BCP47 language tag.
 * @param status error information if creating the Locale failed.
 * @return the Locale for the specified BCP47 language tag.
 * @stable ICU 63
 */
 static Locale U_EXPORT2 forLanguageTag(StringPiece tag, UErrorCode& status);

/**
 * Returns a well-formed language tag for this Locale.
 * 
 * Note: Any locale fields which do not satisfy the BCP47 syntax
 * requirement will be silently omitted from the result.
 *
 * If this function fails, partial output may have been written to the sink.
 *
 * @param sink the output sink receiving the BCP47 language
 * tag for this Locale.
 * @param status error information if creating the language tag failed.
 * @stable ICU 63
 */
 void toLanguageTag(ByteSink& sink, UErrorCode& status) const;

/**
 * Returns a well-formed language tag for this Locale.
 * 
 * Note: Any locale fields which do not satisfy the BCP47 syntax
 * requirement will be silently omitted from the result.
 *
 * @param status error information if creating the language tag failed.
 * @return the BCP47 language tag for this Locale.
 * @stable ICU 63
 */
 template<typename StringClass>
 inline StringClass toLanguageTag(UErrorCode& status) const;

/**
     * Creates a locale which has had minimal canonicalization
     * as per uloc_getName().
     * @param name The name to create from.  If name is null,
     *  the default Locale is used.
     * @return new locale object
     * @stable ICU 2.0
     * @see uloc_getName
     */
    static Locale U_EXPORT2 createFromName(const char *name);

/**
     * Creates a locale from the given string after canonicalizing
     * the string by calling uloc_canonicalize().
     * @param name the locale ID to create from.  Must not be NULL.
     * @return a new locale object corresponding to the given name
     * @stable ICU 3.0
     * @see uloc_canonicalize
     */
    static Locale U_EXPORT2 createCanonical(const char* name);

/**
     * Returns the locale's ISO-639 language code.
     * @return      An alias to the code
     * @stable ICU 2.0
     */
    inline const char *  getLanguage( ) const;

/**
     * Returns the locale's ISO-15924 abbreviation script code.
     * @return      An alias to the code
     * @see uscript_getShortName
     * @see uscript_getCode
     * @stable ICU 2.8
     */
    inline const char *  getScript( ) const;

/**
     * Returns the locale's ISO-3166 country code.
     * @return      An alias to the code
     * @stable ICU 2.0
     */
    inline const char *  getCountry( ) const;

/**
     * Returns the locale's variant code.
     * @return      An alias to the code
     * @stable ICU 2.0
     */
    inline const char *  getVariant( ) const;

/**
     * Returns the programmatic name of the entire locale, with the language,
     * country and variant separated by underbars. If a field is missing, up
     * to two leading underbars will occur. Example: "en", "de_DE", "en_US_WIN",
     * "de__POSIX", "fr__MAC", "__MAC", "_MT", "_FR_EURO"
     * @return      A pointer to "name".
     * @stable ICU 2.0
     */
    inline const char * getName() const;

/**
     * Returns the programmatic name of the entire locale as getName() would return,
     * but without keywords.
     * @return      A pointer to "name".
     * @see getName
     * @stable ICU 2.8
     */
    const char * getBaseName() const;

/**
     * Add the likely subtags for this Locale, per the algorithm described
     * in the following CLDR technical report:
     *
     *   http://www.unicode.org/reports/tr35/#Likely_Subtags
     *
     * If this Locale is already in the maximal form, or not valid, or there is
     * no data available for maximization, the Locale will be unchanged.
     *
     * For example, "und-Zzzz" cannot be maximized, since there is no
     * reasonable maximization.
     *
     * Examples:
     *
     * "en" maximizes to "en_Latn_US"
     *
     * "de" maximizes to "de_Latn_US"
     *
     * "sr" maximizes to "sr_Cyrl_RS"
     *
     * "sh" maximizes to "sr_Latn_RS" (Note this will not reverse.)
     *
     * "zh_Hani" maximizes to "zh_Hans_CN" (Note this will not reverse.)
     *
     * @param status  error information if maximizing this Locale failed.
     *                If this Locale is not well-formed, the error code is
     *                U_ILLEGAL_ARGUMENT_ERROR.
     * @stable ICU 63
     */
    void addLikelySubtags(UErrorCode& status);

/**
     * Minimize the subtags for this Locale, per the algorithm described
     * in the following CLDR technical report:
     *
     *   http://www.unicode.org/reports/tr35/#Likely_Subtags
     *
     * If this Locale is already in the minimal form, or not valid, or there is
     * no data available for minimization, the Locale will be unchanged.
     *
     * Since the minimization algorithm relies on proper maximization, see the
     * comments for addLikelySubtags for reasons why there might not be any
     * data.
     *
     * Examples:
     *
     * "en_Latn_US" minimizes to "en"
     *
     * "de_Latn_US" minimizes to "de"
     *
     * "sr_Cyrl_RS" minimizes to "sr"
     *
     * "zh_Hant_TW" minimizes to "zh_TW" (The region is preferred to the
     * script, and minimizing to "zh" would imply "zh_Hans_CN".)
     *
     * @param status  error information if maximizing this Locale failed.
     *                If this Locale is not well-formed, the error code is
     *                U_ILLEGAL_ARGUMENT_ERROR.
     * @stable ICU 63
     */
    void minimizeSubtags(UErrorCode& status);

/**
     * Gets the list of keywords for the specified locale.
     *
     * @param status the status code
     * @return pointer to StringEnumeration class, or NULL if there are no keywords. 
     * Client must dispose of it by calling delete.
     * @see getKeywords
     * @stable ICU 2.8
     */
    StringEnumeration * createKeywords(UErrorCode &status) const;

/**
     * Gets the list of Unicode keywords for the specified locale.
     *
     * @param status the status code
     * @return pointer to StringEnumeration class, or NULL if there are no keywords.
     * Client must dispose of it by calling delete.
     * @see getUnicodeKeywords
     * @stable ICU 63
     */
    StringEnumeration * createUnicodeKeywords(UErrorCode &status) const;

/**
 * Gets the set of keywords for this Locale.
 *
 * A wrapper to call createKeywords() and write the resulting
 * keywords as standard strings (or compatible objects) into any kind of
 * container that can be written to by an STL style output iterator.
 *
 * @param iterator an STL style output iterator to write the keywords to.
 * @param status error information if creating set of keywords failed.
 * @stable ICU 63
 */
 template<typename StringClass, typename OutputIterator>
 inline void getKeywords(OutputIterator iterator, UErrorCode& status) const;

/**
 * Gets the set of Unicode keywords for this Locale.
 *
 * A wrapper to call createUnicodeKeywords() and write the resulting
 * keywords as standard strings (or compatible objects) into any kind of
 * container that can be written to by an STL style output iterator.
 *
 * @param iterator an STL style output iterator to write the keywords to.
 * @param status error information if creating set of keywords failed.
 * @stable ICU 63
 */
 template<typename StringClass, typename OutputIterator>
 inline void getUnicodeKeywords(OutputIterator iterator, UErrorCode& status) const;

/**
     * Gets the value for a keyword.
     *
     * This uses legacy keyword=value pairs, like "collation=phonebook".
     *
     * ICU4C doesn't do automatic conversion between legacy and Unicode
     * keywords and values in getters and setters (as opposed to ICU4J).
     *
     * @param keywordName name of the keyword for which we want the value. Case insensitive.
     * @param buffer The buffer to receive the keyword value.
     * @param bufferCapacity The capacity of receiving buffer
     * @param status Returns any error information while performing this operation.
     * @return the length of the keyword value
     *
     * @stable ICU 2.8
     */
    int32_t getKeywordValue(const char* keywordName, char *buffer, int32_t bufferCapacity, UErrorCode &status) const;

/**
     * Gets the value for a keyword.
     *
     * This uses legacy keyword=value pairs, like "collation=phonebook".
     *
     * ICU4C doesn't do automatic conversion between legacy and Unicode
     * keywords and values in getters and setters (as opposed to ICU4J).
     *
     * @param keywordName  name of the keyword for which we want the value.
     * @param sink         the sink to receive the keyword value.
     * @param status       error information if getting the value failed.
     * @stable ICU 63
     */
    void getKeywordValue(StringPiece keywordName, ByteSink& sink, UErrorCode& status) const;

/**
 * Gets the value for a keyword.
 *
 * This uses legacy keyword=value pairs, like "collation=phonebook".
 *
 * ICU4C doesn't do automatic conversion between legacy and Unicode
 * keywords and values in getters and setters (as opposed to ICU4J).
 *
 * @param keywordName name of the keyword for which we want the value.
 * @param status error information if getting the value failed.
 * @return the keyword value.
 * @stable ICU 63
 */
 template<typename StringClass>
 inline StringClass getKeywordValue(StringPiece keywordName, UErrorCode& status) const;

/**
     * Gets the Unicode value for a Unicode keyword.
     *
     * This uses Unicode key-value pairs, like "co-phonebk".
     *
     * ICU4C doesn't do automatic conversion between legacy and Unicode
     * keywords and values in getters and setters (as opposed to ICU4J).
     *
     * @param keywordName  name of the keyword for which we want the value.
     * @param sink         the sink to receive the keyword value.
     * @param status       error information if getting the value failed.
     * @stable ICU 63
     */
    void getUnicodeKeywordValue(StringPiece keywordName, ByteSink& sink, UErrorCode& status) const;

/**
 * Gets the Unicode value for a Unicode keyword.
 *
 * This uses Unicode key-value pairs, like "co-phonebk".
 *
 * ICU4C doesn't do automatic conversion between legacy and Unicode
 * keywords and values in getters and setters (as opposed to ICU4J).
 *
 * @param keywordName name of the keyword for which we want the value.
 * @param status error information if getting the value failed.
 * @return the keyword value.
 * @stable ICU 63
 */
 template<typename StringClass>
 inline StringClass getUnicodeKeywordValue(StringPiece keywordName, UErrorCode& status) const;

/**
     * Sets or removes the value for a keyword.
     *
     * For removing all keywords, use getBaseName(),
     * and construct a new Locale if it differs from getName().
     *
     * This uses legacy keyword=value pairs, like "collation=phonebook".
     *
     * ICU4C doesn't do automatic conversion between legacy and Unicode
     * keywords and values in getters and setters (as opposed to ICU4J).
     *
     * @param keywordName name of the keyword to be set. Case insensitive.
     * @param keywordValue value of the keyword to be set. If 0-length or
     *  NULL, will result in the keyword being removed. No error is given if
     *  that keyword does not exist.
     * @param status Returns any error information while performing this operation.
     *
     * @stable ICU 49
     */
    void setKeywordValue(const char* keywordName, const char* keywordValue, UErrorCode &status);

/**
     * Sets or removes the value for a keyword.
     *
     * For removing all keywords, use getBaseName(),
     * and construct a new Locale if it differs from getName().
     *
     * This uses legacy keyword=value pairs, like "collation=phonebook".
     *
     * ICU4C doesn't do automatic conversion between legacy and Unicode
     * keywords and values in getters and setters (as opposed to ICU4J).
     *
     * @param keywordName name of the keyword to be set.
     * @param keywordValue value of the keyword to be set. If 0-length or
     *  NULL, will result in the keyword being removed. No error is given if
     *  that keyword does not exist.
     * @param status Returns any error information while performing this operation.
     * @stable ICU 63
     */
    void setKeywordValue(StringPiece keywordName, StringPiece keywordValue, UErrorCode& status);

/**
     * Sets or removes the Unicode value for a Unicode keyword.
     *
     * For removing all keywords, use getBaseName(),
     * and construct a new Locale if it differs from getName().
     *
     * This uses Unicode key-value pairs, like "co-phonebk".
     *
     * ICU4C doesn't do automatic conversion between legacy and Unicode
     * keywords and values in getters and setters (as opposed to ICU4J).
     *
     * @param keywordName name of the keyword to be set.
     * @param keywordValue value of the keyword to be set. If 0-length or
     *  NULL, will result in the keyword being removed. No error is given if
     *  that keyword does not exist.
     * @param status Returns any error information while performing this operation.
     * @stable ICU 63
     */
    void setUnicodeKeywordValue(StringPiece keywordName, StringPiece keywordValue, UErrorCode& status);

/**
     * returns the locale's three-letter language code, as specified
     * in ISO draft standard ISO-639-2.
     * @return      An alias to the code, or an empty string
     * @stable ICU 2.0
     */
    const char * getISO3Language() const;

/**
     * Fills in "name" with the locale's three-letter ISO-3166 country code.
     * @return      An alias to the code, or an empty string
     * @stable ICU 2.0
     */
    const char * getISO3Country() const;

/**
     * Returns the Windows LCID value corresponding to this locale.
     * This value is stored in the resource data for the locale as a one-to-four-digit
     * hexadecimal number.  If the resource is missing, in the wrong format, or
     * there is no Windows LCID value that corresponds to this locale, returns 0.
     * @stable ICU 2.0
     */
    uint32_t        getLCID(void) const;

/**
     * Returns whether this locale's script is written right-to-left.
     * If there is no script subtag, then the likely script is used, see uloc_addLikelySubtags().
     * If no likely script is known, then FALSE is returned.
     *
     * A script is right-to-left according to the CLDR script metadata
     * which corresponds to whether the script's letters have Bidi_Class=R or AL.
     *
     * Returns TRUE for "ar" and "en-Hebr", FALSE for "zh" and "fa-Cyrl".
     *
     * @return TRUE if the locale's script is written right-to-left
     * @stable ICU 54
     */
    UBool isRightToLeft() const;

/**
     * Fills in "dispLang" with the name of this locale's language in a format suitable for
     * user display in the default locale.  For example, if the locale's language code is
     * "fr" and the default locale's language code is "en", this function would set
     * dispLang to "French".
     * @param dispLang  Receives the language's display name.
     * @return          A reference to "dispLang".
     * @stable ICU 2.0
     */
    UnicodeString&  getDisplayLanguage(UnicodeString&   dispLang) const;

/**
     * Fills in "dispLang" with the name of this locale's language in a format suitable for
     * user display in the locale specified by "displayLocale".  For example, if the locale's
     * language code is "en" and displayLocale's language code is "fr", this function would set
     * dispLang to "Anglais".
     * @param displayLocale  Specifies the locale to be used to display the name.  In other words,
     *                  if the locale's language code is "en", passing Locale::getFrench() for
     *                  displayLocale would result in "Anglais", while passing Locale::getGerman()
     *                  for displayLocale would result in "Englisch".
     * @param dispLang  Receives the language's display name.
     * @return          A reference to "dispLang".
     * @stable ICU 2.0
     */
    UnicodeString&  getDisplayLanguage( const   Locale&         displayLocale,
                                                UnicodeString&  dispLang) const;

/**
     * Fills in "dispScript" with the name of this locale's script in a format suitable
     * for user display in the default locale.  For example, if the locale's script code
     * is "LATN" and the default locale's language code is "en", this function would set
     * dispScript to "Latin".
     * @param dispScript    Receives the scripts's display name.
     * @return              A reference to "dispScript".
     * @stable ICU 2.8
     */
    UnicodeString&  getDisplayScript(          UnicodeString& dispScript) const;

/**
     * Fills in "dispScript" with the name of this locale's country in a format suitable
     * for user display in the locale specified by "displayLocale".  For example, if the locale's
     * script code is "LATN" and displayLocale's language code is "en", this function would set
     * dispScript to "Latin".
     * @param displayLocale      Specifies the locale to be used to display the name.  In other
     *                      words, if the locale's script code is "LATN", passing
     *                      Locale::getFrench() for displayLocale would result in "", while
     *                      passing Locale::getGerman() for displayLocale would result in
     *                      "".
     * @param dispScript    Receives the scripts's display name.
     * @return              A reference to "dispScript".
     * @stable ICU 2.8
     */
    UnicodeString&  getDisplayScript(  const   Locale&         displayLocale,
                                               UnicodeString&  dispScript) const;

/**
     * Fills in "dispCountry" with the name of this locale's country in a format suitable
     * for user display in the default locale.  For example, if the locale's country code
     * is "FR" and the default locale's language code is "en", this function would set
     * dispCountry to "France".
     * @param dispCountry   Receives the country's display name.
     * @return              A reference to "dispCountry".
     * @stable ICU 2.0
     */
    UnicodeString&  getDisplayCountry(          UnicodeString& dispCountry) const;

/**
     * Fills in "dispCountry" with the name of this locale's country in a format suitable
     * for user display in the locale specified by "displayLocale".  For example, if the locale's
     * country code is "US" and displayLocale's language code is "fr", this function would set
     * dispCountry to "&Eacute;tats-Unis".
     * @param displayLocale      Specifies the locale to be used to display the name.  In other
     *                      words, if the locale's country code is "US", passing
     *                      Locale::getFrench() for displayLocale would result in "&Eacute;tats-Unis", while
     *                      passing Locale::getGerman() for displayLocale would result in
     *                      "Vereinigte Staaten".
     * @param dispCountry   Receives the country's display name.
     * @return              A reference to "dispCountry".
     * @stable ICU 2.0
     */
    UnicodeString&  getDisplayCountry(  const   Locale&         displayLocale,
                                                UnicodeString&  dispCountry) const;

/**
     * Fills in "dispVar" with the name of this locale's variant code in a format suitable
     * for user display in the default locale.
     * @param dispVar   Receives the variant's name.
     * @return          A reference to "dispVar".
     * @stable ICU 2.0
     */
    UnicodeString&  getDisplayVariant(      UnicodeString& dispVar) const;

/**
     * Fills in "dispVar" with the name of this locale's variant code in a format
     * suitable for user display in the locale specified by "displayLocale".
     * @param displayLocale  Specifies the locale to be used to display the name.
     * @param dispVar   Receives the variant's display name.
     * @return          A reference to "dispVar".
     * @stable ICU 2.0
     */
    UnicodeString&  getDisplayVariant(  const   Locale&         displayLocale,
                                                UnicodeString&  dispVar) const;

/**
     * Fills in "name" with the name of this locale in a format suitable for user display
     * in the default locale.  This function uses getDisplayLanguage(), getDisplayCountry(),
     * and getDisplayVariant() to do its work, and outputs the display name in the format
     * "language (country[,variant])".  For example, if the default locale is en_US, then
     * fr_FR's display name would be "French (France)", and es_MX_Traditional's display name
     * would be "Spanish (Mexico,Traditional)".
     * @param name  Receives the locale's display name.
     * @return      A reference to "name".
     * @stable ICU 2.0
     */
    UnicodeString&  getDisplayName(         UnicodeString&  name) const;

/**
     * Fills in "name" with the name of this locale in a format suitable for user display
     * in the locale specified by "displayLocale".  This function uses getDisplayLanguage(),
     * getDisplayCountry(), and getDisplayVariant() to do its work, and outputs the display
     * name in the format "language (country[,variant])".  For example, if displayLocale is
     * fr_FR, then en_US's display name would be "Anglais (&Eacute;tats-Unis)", and no_NO_NY's
     * display name would be "norv&eacute;gien (Norv&egrave;ge,NY)".
     * @param displayLocale  Specifies the locale to be used to display the name.
     * @param name      Receives the locale's display name.
     * @return          A reference to "name".
     * @stable ICU 2.0
     */
    UnicodeString&  getDisplayName( const   Locale&         displayLocale,
                                            UnicodeString&  name) const;

/**
     * Generates a hash code for the locale.
     * @stable ICU 2.0
     */
    int32_t         hashCode(void) const;

/**
     * Sets the locale to bogus
     * A bogus locale represents a non-existing locale associated
     * with services that can be instantiated from non-locale data
     * in addition to locale (for example, collation can be
     * instantiated from a locale and from a rule set).
     * @stable ICU 2.1
     */
    void setToBogus();

/**
     * Gets the bogus state. Locale object can be bogus if it doesn't exist
     * @return FALSE if it is a real locale, TRUE if it is a bogus locale
     * @stable ICU 2.1
     */
    inline UBool isBogus(void) const;

/**
     * Returns a list of all installed locales.
     * @param count Receives the number of locales in the list.
     * @return      A pointer to an array of Locale objects.  This array is the list
     *              of all locales with installed resource files.  The called does NOT
     *              get ownership of this list, and must NOT delete it.
     * @stable ICU 2.0
     */
    static const Locale* U_EXPORT2 getAvailableLocales(int32_t& count);

/**
     * Gets a list of all available 2-letter country codes defined in ISO 3166.  This is a
     * pointer to an array of pointers to arrays of char.  All of these pointers are
     * owned by ICU-- do not delete them, and do not write through them.  The array is
     * terminated with a null pointer.
     * @return a list of all available country codes
     * @stable ICU 2.0
     */
    static const char* const* U_EXPORT2 getISOCountries();

/**
     * Gets a list of all available language codes defined in ISO 639.  This is a pointer
     * to an array of pointers to arrays of char.  All of these pointers are owned
     * by ICU-- do not delete them, and do not write through them.  The array is
     * terminated with a null pointer.
     * @return a list of all available language codes
     * @stable ICU 2.0
     */
    static const char* const* U_EXPORT2 getISOLanguages();

/**
     * ICU "poor man's RTTI", returns a UClassID for this class.
     *
     * @stable ICU 2.2
     */
    static UClassID U_EXPORT2 getStaticClassID();

/**
     * ICU "poor man's RTTI", returns a UClassID for the actual class.
     *
     * @stable ICU 2.2
     */
    virtual UClassID getDynamicClassID() const;

#ifndef U_HIDE_DRAFT_API
 /**
 * A Locale iterator interface similar to a Java Iterator<Locale>.
 * @draft ICU 65
 */
 class U_COMMON_API Iterator /* not : public UObject because this is an interface/mixin class */ {
 public:
 /** @draft ICU 65 */
 virtual ~Iterator();

/**
         * @return TRUE if next() can be called again.
         * @draft ICU 65
         */
        virtual UBool hasNext() const = 0;

/**
         * @return the next locale.
         * @draft ICU 65
         */
        virtual const Locale &next() = 0;
    };

/**
 * A generic Locale iterator implementation over Locale input iterators.
 * @draft ICU 65
 */
 template<typename Iter>
 class RangeIterator : public Iterator, public UMemory {
 public:
 /**
 * Constructs an iterator from a begin/end range.
 * Each of the iterator parameter values must be an
 * input iterator whose value is convertible to const Locale &.
 *
 * @param begin Start of range.
 * @param end Exclusive end of range.
 * @draft ICU 65
 */
 RangeIterator(Iter begin, Iter end) : it_(begin), end_(end) {}

/**
         * @return TRUE if next() can be called again.
         * @draft ICU 65
         */
        UBool hasNext() const override { return it_ != end_; }

/**
         * @return the next locale.
         * @draft ICU 65
         */
        const Locale &next() override { return *it_++; }

private:
        Iter it_;
        const Iter end_;
    };

/**
 * A generic Locale iterator implementation over Locale input iterators.
 * Calls the converter to convert each *begin to a const Locale &.
 * @draft ICU 65
 */
 template<typename Iter, typename Conv>
 class ConvertingIterator : public Iterator, public UMemory {
 public:
 /**
 * Constructs an iterator from a begin/end range.
 * Each of the iterator parameter values must be an
 * input iterator whose value the converter converts to const Locale &.
 *
 * @param begin Start of range.
 * @param end Exclusive end of range.
 * @param converter Converter from *begin to const Locale & or compatible.
 * @draft ICU 65
 */
 ConvertingIterator(Iter begin, Iter end, Conv converter) :
 it_(begin), end_(end), converter_(converter) {}

/**
         * @return TRUE if next() can be called again.
         * @draft ICU 65
         */
        UBool hasNext() const override { return it_ != end_; }

/**
         * @return the next locale.
         * @draft ICU 65
         */
        const Locale &next() override { return converter_(*it_++); }

private:
        Iter it_;
        const Iter end_;
        Conv converter_;
    };
#endif  // U_HIDE_DRAFT_API

protected: /* only protected for testing purposes. DO NOT USE. */
#ifndef U_HIDE_INTERNAL_API
    /**
     * Set this from a single POSIX style locale string.
     * @internal
     */
    void setFromPOSIXID(const char *posixID);
#endif  /* U_HIDE_INTERNAL_API */

private:
    /**
     * Initialize the locale object with a new name.
     * Was deprecated - used in implementation - moved internal
     *
     * @param cLocaleID The new locale name.
     * @param canonicalize whether to call uloc_canonicalize on cLocaleID
     */
    Locale& init(const char* cLocaleID, UBool canonicalize);

/*
     * Internal constructor to allow construction of a locale object with
     *   NO side effects.   (Default constructor tries to get
     *   the default locale.)
     */
    enum ELocaleType {
        eBOGUS
    };
    Locale(ELocaleType);

/**
     * Initialize the locale cache for commonly used locales
     */
    static Locale *getLocaleCache(void);

char language[ULOC_LANG_CAPACITY];
    char script[ULOC_SCRIPT_CAPACITY];
    char country[ULOC_COUNTRY_CAPACITY];
    int32_t variantBegin;
    char* fullName;
    char fullNameBuffer[ULOC_FULLNAME_CAPACITY];
    // name without keywords
    char* baseName;
    void initBaseName(UErrorCode& status);

UBool fIsBogus;

static const Locale &getLocale(int locid);

/**
     * A friend to allow the default locale to be set by either the C or C++ API.
     * @internal (private)
     */
    friend Locale *locale_set_default_internal(const char *, UErrorCode& status);

/**
     * @internal (private)
     */
    friend void U_CALLCONV locale_available_init();
};

inline UBool
Locale::operator!=(const    Locale&     other) const
{
    return !operator==(other);
}

template<typename StringClass> inline StringClass
Locale::toLanguageTag(UErrorCode& status) const
{
 StringClass result;
 StringByteSink<StringClass> sink(&result);
 toLanguageTag(sink, status);
 return result;
}

inline const char *
Locale::getCountry() const
{
    return country;
}

inline const char *
Locale::getLanguage() const
{
    return language;
}

inline const char *
Locale::getScript() const
{
    return script;
}

inline const char *
Locale::getVariant() const
{
    return &baseName[variantBegin];
}

inline const char *
Locale::getName() const
{
    return fullName;
}

template<typename StringClass, typename OutputIterator> inline void
Locale::getKeywords(OutputIterator iterator, UErrorCode& status) const
{
 LocalPointer<StringEnumeration> keys(createKeywords(status));
 if (U_FAILURE(status) || keys.isNull()) {
 return;
 }
 for (;;) {
 int32_t resultLength;
 const char* buffer = keys->next(&resultLength, status);
 if (U_FAILURE(status) || buffer == nullptr) {
 return;
 }
 *iterator++ = StringClass(buffer, resultLength);
 }
}

template<typename StringClass, typename OutputIterator> inline void
Locale::getUnicodeKeywords(OutputIterator iterator, UErrorCode& status) const
{
 LocalPointer<StringEnumeration> keys(createUnicodeKeywords(status));
 if (U_FAILURE(status) || keys.isNull()) {
 return;
 }
 for (;;) {
 int32_t resultLength;
 const char* buffer = keys->next(&resultLength, status);
 if (U_FAILURE(status) || buffer == nullptr) {
 return;
 }
 *iterator++ = StringClass(buffer, resultLength);
 }
}

template<typename StringClass> inline StringClass
Locale::getKeywordValue(StringPiece keywordName, UErrorCode& status) const
{
 StringClass result;
 StringByteSink<StringClass> sink(&result);
 getKeywordValue(keywordName, sink, status);
 return result;
}

template<typename StringClass> inline StringClass
Locale::getUnicodeKeywordValue(StringPiece keywordName, UErrorCode& status) const
{
 StringClass result;
 StringByteSink<StringClass> sink(&result);
 getUnicodeKeywordValue(keywordName, sink, status);
 return result;
}

inline UBool
Locale::isBogus(void) const {
    return fIsBogus;
}

U_NAMESPACE_END

#endif /* U_SHOW_CPLUSPLUS_API */

#endif