1285 lines
48 KiB
C++
1285 lines
48 KiB
C++
// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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******************************************************************************
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*
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* Copyright (C) 1996-2015, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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******************************************************************************
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*
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* File locid.h
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*
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* Created by: Helena Shih
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*
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* Modification History:
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*
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* Date Name Description
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* 02/11/97 aliu Changed gLocPath to fgLocPath and added methods to
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* get and set it.
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* 04/02/97 aliu Made operator!= inline; fixed return value of getName().
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* 04/15/97 aliu Cleanup for AIX/Win32.
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* 04/24/97 aliu Numerous changes per code review.
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* 08/18/98 stephen Added tokenizeString(),changed getDisplayName()
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* 09/08/98 stephen Moved definition of kEmptyString for Mac Port
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* 11/09/99 weiv Added const char * getName() const;
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* 04/12/00 srl removing unicodestring api's and cached hash code
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* 08/10/01 grhoten Change the static Locales to accessor functions
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******************************************************************************
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*/
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#ifndef LOCID_H
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#define LOCID_H
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#include "unicode/utypes.h"
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#if U_SHOW_CPLUSPLUS_API
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#include "unicode/bytestream.h"
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#include "unicode/localpointer.h"
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#include "unicode/strenum.h"
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#include "unicode/stringpiece.h"
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#include "unicode/uobject.h"
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#include "unicode/putil.h"
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#include "unicode/uloc.h"
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/**
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* \file
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* \brief C++ API: Locale ID object.
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*/
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U_NAMESPACE_BEGIN
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// Forward Declarations
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void U_CALLCONV locale_available_init(); /**< @internal */
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class StringEnumeration;
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class UnicodeString;
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/**
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* A <code>Locale</code> object represents a specific geographical, political,
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* or cultural region. An operation that requires a <code>Locale</code> to perform
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* its task is called <em>locale-sensitive</em> and uses the <code>Locale</code>
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* to tailor information for the user. For example, displaying a number
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* is a locale-sensitive operation--the number should be formatted
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* according to the customs/conventions of the user's native country,
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* region, or culture.
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*
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* The Locale class is not suitable for subclassing.
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*
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* <P>
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* You can create a <code>Locale</code> object using the constructor in
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* this class:
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* \htmlonly<blockquote>\endhtmlonly
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* <pre>
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* Locale( const char* language,
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* const char* country,
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* const char* variant);
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* </pre>
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* \htmlonly</blockquote>\endhtmlonly
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* The first argument to the constructors is a valid <STRONG>ISO
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* Language Code.</STRONG> These codes are the lower-case two-letter
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* codes as defined by ISO-639.
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* You can find a full list of these codes at:
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* <BR><a href ="http://www.loc.gov/standards/iso639-2/">
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* http://www.loc.gov/standards/iso639-2/</a>
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*
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* <P>
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* The second argument to the constructors is a valid <STRONG>ISO Country
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* Code.</STRONG> These codes are the upper-case two-letter codes
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* as defined by ISO-3166.
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* You can find a full list of these codes at a number of sites, such as:
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* <BR><a href="http://www.iso.org/iso/en/prods-services/iso3166ma/index.html">
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* http://www.iso.org/iso/en/prods-services/iso3166ma/index.html</a>
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*
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* <P>
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* The third constructor requires a third argument--the <STRONG>Variant.</STRONG>
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* The Variant codes are vendor and browser-specific.
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* For example, use REVISED for a language's revised script orthography, and POSIX for POSIX.
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* Where there are two variants, separate them with an underscore, and
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* put the most important one first. For
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* example, a Traditional Spanish collation might be referenced, with
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* "ES", "ES", "Traditional_POSIX".
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*
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* <P>
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* Because a <code>Locale</code> object is just an identifier for a region,
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* no validity check is performed when you construct a <code>Locale</code>.
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* If you want to see whether particular resources are available for the
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* <code>Locale</code> you construct, you must query those resources. For
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* example, ask the <code>NumberFormat</code> for the locales it supports
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* using its <code>getAvailableLocales</code> method.
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* <BR><STRONG>Note:</STRONG> When you ask for a resource for a particular
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* locale, you get back the best available match, not necessarily
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* precisely what you asked for. For more information, look at
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* <code>ResourceBundle</code>.
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*
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* <P>
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* The <code>Locale</code> class provides a number of convenient constants
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* that you can use to create <code>Locale</code> objects for commonly used
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* locales. For example, the following refers to a <code>Locale</code> object
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* for the United States:
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* \htmlonly<blockquote>\endhtmlonly
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* <pre>
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* Locale::getUS()
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* </pre>
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* \htmlonly</blockquote>\endhtmlonly
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*
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* <P>
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* Once you've created a <code>Locale</code> you can query it for information about
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* itself. Use <code>getCountry</code> to get the ISO Country Code and
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* <code>getLanguage</code> to get the ISO Language Code. You can
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* use <code>getDisplayCountry</code> to get the
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* name of the country suitable for displaying to the user. Similarly,
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* you can use <code>getDisplayLanguage</code> to get the name of
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* the language suitable for displaying to the user. Interestingly,
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* the <code>getDisplayXXX</code> methods are themselves locale-sensitive
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* and have two versions: one that uses the default locale and one
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* that takes a locale as an argument and displays the name or country in
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* a language appropriate to that locale.
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*
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* <P>
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* ICU provides a number of classes that perform locale-sensitive
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* operations. For example, the <code>NumberFormat</code> class formats
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* numbers, currency, or percentages in a locale-sensitive manner. Classes
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* such as <code>NumberFormat</code> have a number of convenience methods
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* for creating a default object of that type. For example, the
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* <code>NumberFormat</code> class provides these three convenience methods
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* for creating a default <code>NumberFormat</code> object:
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* \htmlonly<blockquote>\endhtmlonly
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* <pre>
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* UErrorCode success = U_ZERO_ERROR;
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* Locale myLocale;
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* NumberFormat *nf;
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*
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* nf = NumberFormat::createInstance( success ); delete nf;
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* nf = NumberFormat::createCurrencyInstance( success ); delete nf;
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* nf = NumberFormat::createPercentInstance( success ); delete nf;
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* </pre>
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* \htmlonly</blockquote>\endhtmlonly
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* Each of these methods has two variants; one with an explicit locale
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* and one without; the latter using the default locale.
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* \htmlonly<blockquote>\endhtmlonly
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* <pre>
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* nf = NumberFormat::createInstance( myLocale, success ); delete nf;
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* nf = NumberFormat::createCurrencyInstance( myLocale, success ); delete nf;
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* nf = NumberFormat::createPercentInstance( myLocale, success ); delete nf;
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* </pre>
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* \htmlonly</blockquote>\endhtmlonly
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* A <code>Locale</code> is the mechanism for identifying the kind of object
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* (<code>NumberFormat</code>) that you would like to get. The locale is
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* <STRONG>just</STRONG> a mechanism for identifying objects,
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* <STRONG>not</STRONG> a container for the objects themselves.
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*
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* <P>
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* Each class that performs locale-sensitive operations allows you
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* to get all the available objects of that type. You can sift
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* through these objects by language, country, or variant,
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* and use the display names to present a menu to the user.
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* For example, you can create a menu of all the collation objects
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* suitable for a given language. Such classes implement these
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* three class methods:
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* \htmlonly<blockquote>\endhtmlonly
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* <pre>
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* static Locale* getAvailableLocales(int32_t& numLocales)
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* static UnicodeString& getDisplayName(const Locale& objectLocale,
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* const Locale& displayLocale,
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* UnicodeString& displayName)
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* static UnicodeString& getDisplayName(const Locale& objectLocale,
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* UnicodeString& displayName)
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* </pre>
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* \htmlonly</blockquote>\endhtmlonly
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*
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* @stable ICU 2.0
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* @see ResourceBundle
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*/
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class U_COMMON_API Locale : public UObject {
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public:
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/** Useful constant for the Root locale. @stable ICU 4.4 */
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static const Locale &U_EXPORT2 getRoot(void);
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/** Useful constant for this language. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getEnglish(void);
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/** Useful constant for this language. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getFrench(void);
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/** Useful constant for this language. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getGerman(void);
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/** Useful constant for this language. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getItalian(void);
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/** Useful constant for this language. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getJapanese(void);
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/** Useful constant for this language. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getKorean(void);
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/** Useful constant for this language. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getChinese(void);
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/** Useful constant for this language. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getSimplifiedChinese(void);
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/** Useful constant for this language. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getTraditionalChinese(void);
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/** Useful constant for this country/region. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getFrance(void);
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/** Useful constant for this country/region. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getGermany(void);
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/** Useful constant for this country/region. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getItaly(void);
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/** Useful constant for this country/region. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getJapan(void);
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/** Useful constant for this country/region. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getKorea(void);
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/** Useful constant for this country/region. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getChina(void);
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/** Useful constant for this country/region. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getPRC(void);
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/** Useful constant for this country/region. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getTaiwan(void);
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/** Useful constant for this country/region. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getUK(void);
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/** Useful constant for this country/region. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getUS(void);
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/** Useful constant for this country/region. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getCanada(void);
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/** Useful constant for this country/region. @stable ICU 2.0 */
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static const Locale &U_EXPORT2 getCanadaFrench(void);
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/**
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* Construct a default locale object, a Locale for the default locale ID.
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*
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* @see getDefault
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* @see uloc_getDefault
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* @stable ICU 2.0
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*/
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Locale();
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/**
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* Construct a locale from language, country, variant.
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* If an error occurs, then the constructed object will be "bogus"
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* (isBogus() will return true).
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*
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* @param language Lowercase two-letter or three-letter ISO-639 code.
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* This parameter can instead be an ICU style C locale (e.g. "en_US"),
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* but the other parameters must not be used.
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* This parameter can be nullptr; if so,
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* the locale is initialized to match the current default locale.
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* (This is the same as using the default constructor.)
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* Please note: The Java Locale class does NOT accept the form
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* 'new Locale("en_US")' but only 'new Locale("en","US")'
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*
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* @param country Uppercase two-letter ISO-3166 code. (optional)
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* @param variant Uppercase vendor and browser specific code. See class
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* description. (optional)
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* @param keywordsAndValues A string consisting of keyword/values pairs, such as
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* "collation=phonebook;currency=euro"
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*
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* @see getDefault
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* @see uloc_getDefault
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* @stable ICU 2.0
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*/
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Locale( const char * language,
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const char * country = 0,
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const char * variant = 0,
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const char * keywordsAndValues = 0);
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/**
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* Initializes a Locale object from another Locale object.
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*
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* @param other The Locale object being copied in.
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* @stable ICU 2.0
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*/
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Locale(const Locale& other);
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/**
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* Move constructor; might leave source in bogus state.
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* This locale will have the same contents that the source locale had.
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*
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* @param other The Locale object being moved in.
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* @stable ICU 63
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*/
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Locale(Locale&& other) noexcept;
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/**
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* Destructor
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* @stable ICU 2.0
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*/
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virtual ~Locale() ;
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/**
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* Replaces the entire contents of *this with the specified value.
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*
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* @param other The Locale object being copied in.
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* @return *this
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* @stable ICU 2.0
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*/
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Locale& operator=(const Locale& other);
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/**
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* Move assignment operator; might leave source in bogus state.
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* This locale will have the same contents that the source locale had.
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* The behavior is undefined if *this and the source are the same object.
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*
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* @param other The Locale object being moved in.
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* @return *this
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* @stable ICU 63
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*/
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Locale& operator=(Locale&& other) noexcept;
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/**
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* Checks if two locale keys are the same.
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*
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* @param other The locale key object to be compared with this.
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* @return true if the two locale keys are the same, false otherwise.
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* @stable ICU 2.0
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*/
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bool operator==(const Locale& other) const;
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/**
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* Checks if two locale keys are not the same.
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*
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* @param other The locale key object to be compared with this.
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* @return true if the two locale keys are not the same, false
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* otherwise.
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* @stable ICU 2.0
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*/
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inline bool operator!=(const Locale& other) const;
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/**
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* Clone this object.
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* Clones can be used concurrently in multiple threads.
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* If an error occurs, then nullptr is returned.
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* The caller must delete the clone.
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*
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* @return a clone of this object
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*
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* @see getDynamicClassID
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* @stable ICU 2.8
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*/
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Locale *clone() const;
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#ifndef U_HIDE_SYSTEM_API
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/**
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* Common methods of getting the current default Locale. Used for the
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* presentation: menus, dialogs, etc. Generally set once when your applet or
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* application is initialized, then never reset. (If you do reset the
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* default locale, you probably want to reload your GUI, so that the change
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* is reflected in your interface.)
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*
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* More advanced programs will allow users to use different locales for
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* different fields, e.g. in a spreadsheet.
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*
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* Note that the initial setting will match the host system.
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* @return a reference to the Locale object for the default locale ID
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* @system
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* @stable ICU 2.0
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*/
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static const Locale& U_EXPORT2 getDefault(void);
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/**
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* Sets the default. Normally set once at the beginning of a process,
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* then never reset.
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* setDefault() only changes ICU's default locale ID, <strong>not</strong>
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* the default locale ID of the runtime environment.
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*
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* @param newLocale Locale to set to. If nullptr, set to the value obtained
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* from the runtime environment.
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* @param success The error code.
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* @system
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* @stable ICU 2.0
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*/
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static void U_EXPORT2 setDefault(const Locale& newLocale,
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UErrorCode& success);
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#endif /* U_HIDE_SYSTEM_API */
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/**
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* Returns a Locale for the specified BCP47 language tag string.
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* If the specified language tag contains any ill-formed subtags,
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* the first such subtag and all following subtags are ignored.
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* <p>
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* This implements the 'Language-Tag' production of BCP 47, and so
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* supports legacy language tags (marked as “Type: grandfathered” in BCP 47)
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* (regular and irregular) as well as private use language tags.
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*
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* Private use tags are represented as 'x-whatever',
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* and legacy tags are converted to their canonical replacements where they exist.
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*
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* Note that a few legacy tags have no modern replacement;
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* these will be converted using the fallback described in
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* the first paragraph, so some information might be lost.
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*
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* @param tag the input BCP47 language tag.
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* @param status error information if creating the Locale failed.
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* @return the Locale for the specified BCP47 language tag.
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* @stable ICU 63
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*/
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static Locale U_EXPORT2 forLanguageTag(StringPiece tag, UErrorCode& status);
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/**
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* Returns a well-formed language tag for this Locale.
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* <p>
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* <b>Note</b>: Any locale fields which do not satisfy the BCP47 syntax
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* requirement will be silently omitted from the result.
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*
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* If this function fails, partial output may have been written to the sink.
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*
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* @param sink the output sink receiving the BCP47 language
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* tag for this Locale.
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* @param status error information if creating the language tag failed.
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* @stable ICU 63
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*/
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void toLanguageTag(ByteSink& sink, UErrorCode& status) const;
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/**
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* Returns a well-formed language tag for this Locale.
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* <p>
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* <b>Note</b>: Any locale fields which do not satisfy the BCP47 syntax
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* requirement will be silently omitted from the result.
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*
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* @param status error information if creating the language tag failed.
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* @return the BCP47 language tag for this Locale.
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* @stable ICU 63
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*/
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template<typename StringClass>
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inline StringClass toLanguageTag(UErrorCode& status) const;
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/**
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* Creates a locale which has had minimal canonicalization
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* as per uloc_getName().
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* @param name The name to create from. If name is null,
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* the default Locale is used.
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* @return new locale object
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* @stable ICU 2.0
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* @see uloc_getName
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*/
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static Locale U_EXPORT2 createFromName(const char *name);
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/**
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* Creates a locale from the given string after canonicalizing
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* the string according to CLDR by calling uloc_canonicalize().
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* @param name the locale ID to create from. Must not be nullptr.
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* @return a new locale object corresponding to the given name
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* @stable ICU 3.0
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* @see uloc_canonicalize
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*/
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static Locale U_EXPORT2 createCanonical(const char* name);
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/**
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* Returns the locale's ISO-639 language code.
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* @return An alias to the code
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* @stable ICU 2.0
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*/
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inline const char * getLanguage( ) const;
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/**
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* Returns the locale's ISO-15924 abbreviation script code.
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* @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);
|
|
|
|
/**
|
|
* Canonicalize the locale ID of this object according to CLDR.
|
|
* @param status the status code
|
|
* @stable ICU 67
|
|
* @see createCanonical
|
|
*/
|
|
void canonicalize(UErrorCode& status);
|
|
|
|
/**
|
|
* Gets the list of keywords for the specified locale.
|
|
*
|
|
* @param status the status code
|
|
* @return pointer to StringEnumeration class, or nullptr 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 nullptr 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
|
|
* nullptr, 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
|
|
* nullptr, 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
|
|
* nullptr, 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 "États-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 "États-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 (États-Unis)", and no_NO_NY's
|
|
* display name would be "norvégien (Norvège,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();
|
|
|
|
/**
|
|
* Returns a list of all unique language codes defined in ISO 639.
|
|
* They can be 2 or 3 letter codes, as defined by
|
|
* <a href="https://www.ietf.org/rfc/bcp/bcp47.html#section-2.2.1">
|
|
* BCP 47, section 2.2.1</a>. 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 override;
|
|
|
|
/**
|
|
* A Locale iterator interface similar to a Java Iterator<Locale>.
|
|
* @stable ICU 65
|
|
*/
|
|
class U_COMMON_API Iterator /* not : public UObject because this is an interface/mixin class */ {
|
|
public:
|
|
/** @stable ICU 65 */
|
|
virtual ~Iterator();
|
|
|
|
/**
|
|
* @return true if next() can be called again.
|
|
* @stable ICU 65
|
|
*/
|
|
virtual UBool hasNext() const = 0;
|
|
|
|
/**
|
|
* @return the next locale.
|
|
* @stable ICU 65
|
|
*/
|
|
virtual const Locale &next() = 0;
|
|
};
|
|
|
|
/**
|
|
* A generic Locale iterator implementation over Locale input iterators.
|
|
* @stable 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.
|
|
* @stable ICU 65
|
|
*/
|
|
RangeIterator(Iter begin, Iter end) : it_(begin), end_(end) {}
|
|
|
|
/**
|
|
* @return true if next() can be called again.
|
|
* @stable ICU 65
|
|
*/
|
|
UBool hasNext() const override { return it_ != end_; }
|
|
|
|
/**
|
|
* @return the next locale.
|
|
* @stable 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 &.
|
|
* @stable 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.
|
|
* @stable ICU 65
|
|
*/
|
|
ConvertingIterator(Iter begin, Iter end, Conv converter) :
|
|
it_(begin), end_(end), converter_(converter) {}
|
|
|
|
/**
|
|
* @return true if next() can be called again.
|
|
* @stable ICU 65
|
|
*/
|
|
UBool hasNext() const override { return it_ != end_; }
|
|
|
|
/**
|
|
* @return the next locale.
|
|
* @stable ICU 65
|
|
*/
|
|
const Locale &next() override { return converter_(*it_++); }
|
|
|
|
private:
|
|
Iter it_;
|
|
const Iter end_;
|
|
Conv converter_;
|
|
};
|
|
|
|
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);
|
|
/**
|
|
* Minimize the subtags for this Locale, per the algorithm described
|
|
* @param favorScript favor to keep script if true, to keep region if false.
|
|
* @param status error information if maximizing this Locale failed.
|
|
* If this Locale is not well-formed, the error code is
|
|
* U_ILLEGAL_ARGUMENT_ERROR.
|
|
* @internal
|
|
*/
|
|
void minimizeSubtags(bool favorScript, UErrorCode& status);
|
|
#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 bool
|
|
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
|