зеркало из https://github.com/mozilla/gecko-dev.git
537 строки
21 KiB
C
537 строки
21 KiB
C
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/*
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*****************************************************************************************
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* *
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* COPYRIGHT: *
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* (C) Copyright Taligent, Inc., 1996 *
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* (C) Copyright International Business Machines Corporation, 1996 *
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* Licensed Material - Program-Property of IBM - All Rights Reserved. *
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* US Government Users Restricted Rights - Use, duplication, or disclosure *
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* restricted by GSA ADP Schedule Contract with IBM Corp. *
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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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*****************************************************************************************
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*/
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#ifndef _LOCID
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#define _LOCID
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#ifndef _UNISTRING
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#include "unistring.h"
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#endif
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/**
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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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* <P>
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* You create a <code>Locale</code> object using one of the two constructors in
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* this class:
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* <blockquote>
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* <pre>
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* . Locale(String language, String country)
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* . Locale(String language, String country, String variant)
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* </pre>
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* </blockquote>
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* The first argument to both 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 a number of sites, such as:
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* <BR><a href ="http://www.ics.uci.edu/pub/ietf/http/related/iso639.txt">
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* <code>http://www.ics.uci.edu/pub/ietf/http/related/iso639.txt</code></a>
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*
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* <P>
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* The second argument to both 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.chemie.fu-berlin.de/diverse/doc/ISO_3166.html">
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* <code>http://www.chemie.fu-berlin.de/diverse/doc/ISO_3166.html</code></a>
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*
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* <P>
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* The second 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 WIN for Windows, MAC for Macintosh, 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_WIN".
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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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* <a href="java.util.ResourceBundle.html"><code>ResourceBundle</code></a>.
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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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* <blockquote>
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* <pre>
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* . Locale::US
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* </pre>
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* </blockquote>
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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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* The TIFC 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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* <blockquote>
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* <pre>
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* . NumberFormat.getInstance()
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* . NumberFormat.getCurrencyInstance()
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* . NumberFormat.getPercentInstance()
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* </pre>
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* </blockquote>
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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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* <blockquote>
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* <pre>
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* . NumberFormat.getInstance(myLocale)
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* . NumberFormat.getCurrencyInstance(myLocale)
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* . NumberFormat.getPercentInstance(myLocale)
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* </pre>
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* </blockquote>
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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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* <blockquote>
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* <pre>
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* . static Locale* getAvailableLocales(t_int32& 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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* </blockquote>
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*/
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#ifdef NLS_MAC
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#pragma export on
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#endif
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class T_UTILITY_API Locale
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{
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public:
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/**
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* Useful constants for language.
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*/
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static const Locale ENGLISH;
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static const Locale FRENCH;
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static const Locale GERMAN;
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static const Locale ITALIAN;
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static const Locale JAPANESE;
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static const Locale KOREAN;
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static const Locale CHINESE;
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static const Locale SCHINESE; // Simplified Chinese
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static const Locale TCHINESE; // Traditional Chinese
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/**
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* Useful constants for country.
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*/
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static const Locale FRANCE;
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static const Locale GERMANY;
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static const Locale ITALY;
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static const Locale JAPAN;
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static const Locale KOREA;
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static const Locale CHINA; // Alias for PRC
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static const Locale PRC; // People's Republic of China
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static const Locale TAIWAN; // Republic of China
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static const Locale UK;
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static const Locale US;
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static const Locale CANADA;
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static const Locale CANADA_FRENCH;
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/**
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* Construct an empty locale. It's only used when a fill-in parameter is
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* needed.
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*/
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Locale();
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/**
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* Construct an locale from language.
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*
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* @param language Lowercase two-letter ISO-639 code.
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*/
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Locale( const UnicodeString& newLanguage);
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/**
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* Construct a locale from language, country.
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*
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* @param language Uppercase two-letter ISO-639 code.
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* @param country Uppercase two-letter ISO-3166 code.
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*/
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Locale( const UnicodeString& language,
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const UnicodeString& country);
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/**
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* Construct a locale from language, country, variant.
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*
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* @param language Lowercase two-letter ISO-639 code.
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* @param country Uppercase two-letter ISO-3166 code.
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* @param variant Uppercase vendor and browser specific code. See class
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* description.
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*/
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Locale( const UnicodeString& language,
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const UnicodeString& country,
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const UnicodeString& variant);
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/**
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* Initializes an 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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*/
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Locale(const Locale& other);
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/**
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* Initializes an Locale object from char*
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*
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* lang can be any one of lang, lang_co, or lang_co_variant
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*/
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Locale(const char *loc_id);
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/**
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* Destructor
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*/
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~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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*/
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Locale& operator=(const Locale& other);
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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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*/
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t_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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*/
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t_bool operator!=(const Locale& other) const;
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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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*/
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static const Locale& getDefault();
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/**
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* Sets the default. Normally set once at the beginning of applet or
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* application, then never reset. setDefault does NOT reset the host locale.
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*
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* @param newLocale Locale to set to.
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*/
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static void setDefault(const Locale& newLocale,
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ErrorCode& success);
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/**
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* Fills in "lang" with the locale's two-letter ISO-639 language code.
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* @param lang Receives the language code.
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* @return A reference to "lang".
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*/
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UnicodeString& getLanguage( UnicodeString& lang) const;
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/**
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* Fills in "cntry" with the locale's two-letter ISO-3166 country code.
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* @param cntry Receives the country code.
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* @return A reference to "cntry".
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*/
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UnicodeString& getCountry( UnicodeString& cntry) const;
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/**
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* Fills in "var" with the locale's variant code.
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* @param var Receives the variant code.
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* @return A reference to "var".
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*/
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UnicodeString& getVariant( UnicodeString& var) const;
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/**
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* Fills in "name" the programmatic name of the entire locale, with the language,
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* country and variant separated by underbars. If a field is missing, at
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* most one underbar will occur. Example: "en", "de_DE", "en_US_WIN",
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* "de_POSIX", "fr_MAC"
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* @param var Receives the programmatic locale name.
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* @return A reference to "name".
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*/
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UnicodeString& getName( UnicodeString& name) const;
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/**
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* Fills in "name" with the locale's three-letter language code, as specified
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* in ISO draft standard ISO-639-2..
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* @param name Receives the three-letter language code.
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* @return A reference to "name".
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*/
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UnicodeString& getISO3Language(UnicodeString& name) const;
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/**
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* Fills in "name" with the locale's three-letter ISO-3166 country code.
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* @param name Receives the three-letter country code.
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* @return A reference to "name".
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*/
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UnicodeString& getISO3Country( UnicodeString& name) const;
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/**
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* Returns the Windows LCID value corresponding to this locale.
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* 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.
|
|||
|
|
*/
|
|||
|
|
t_uint32 getLCID() 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".
|
|||
|
|
*/
|
|||
|
|
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 "inLocale". For example, if the locale's
|
|||
|
|
* language code is "en" and inLocale's language code is "fr", this function would set
|
|||
|
|
* dispLang to "Anglais".
|
|||
|
|
* @param inLocale Specifies the locale to be used to display the name. In other words,
|
|||
|
|
* if the locale's language code is "en", passing Locale::FRENCH for
|
|||
|
|
* inLocale would result in "Anglais", while passing Locale::GERMAN
|
|||
|
|
* for inLocale would result in "Englisch".
|
|||
|
|
* @param dispLang Receives the language's display name.
|
|||
|
|
* @return A reference to "dispLang".
|
|||
|
|
*/
|
|||
|
|
UnicodeString& getDisplayLanguage( const Locale& inLocale,
|
|||
|
|
UnicodeString& dispLang) 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".
|
|||
|
|
*/
|
|||
|
|
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 "inLocale". For example, if the locale's
|
|||
|
|
* country code is "US" and inLocale's language code is "fr", this function would set
|
|||
|
|
* dispCountry to "Etats-Unis".
|
|||
|
|
* @param inLocale Specifies the locale to be used to display the name. In other
|
|||
|
|
* words, if the locale's country code is "US", passing
|
|||
|
|
* Locale::FRENCH for inLocale would result in "<EFBFBD>tats-Unis", while
|
|||
|
|
* passing Locale::GERMAN for inLocale would result in
|
|||
|
|
* "Vereinigte Staaten".
|
|||
|
|
* @param dispCountry Receives the country's display name.
|
|||
|
|
* @return A reference to "dispCountry".
|
|||
|
|
*/
|
|||
|
|
UnicodeString& getDisplayCountry( const Locale& inLocale,
|
|||
|
|
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".
|
|||
|
|
*/
|
|||
|
|
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 "inLocale".
|
|||
|
|
* @param inLocale Specifies the locale to be used to display the name.
|
|||
|
|
* @param dispVar Receives the variant's display name.
|
|||
|
|
* @return A reference to "dispVar".
|
|||
|
|
*/
|
|||
|
|
UnicodeString& getDisplayVariant( const Locale& inLocale,
|
|||
|
|
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".
|
|||
|
|
*/
|
|||
|
|
UnicodeString& getDisplayName( UnicodeString& name) const;
|
|||
|
|
/**
|
|||
|
|
* Fills in "name" with the name of this locale in a format suitable for user display
|
|||
|
|
* in the locale specfied by "inLocale". 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 inLocale is
|
|||
|
|
* fr_FR, then en_US's display name would be "Anglais (<28>tats-Unis)", and no_NO_NY's
|
|||
|
|
* display name would be "norv<EFBFBD>gien (Norv<72>ge,NY)".
|
|||
|
|
* @param inLocale Specifies the locale to be used to display the name.
|
|||
|
|
* @param name Receives the locale's display name.
|
|||
|
|
* @return A reference to "name".
|
|||
|
|
*/
|
|||
|
|
UnicodeString& getDisplayName( const Locale& inLocale,
|
|||
|
|
UnicodeString& name) const;
|
|||
|
|
/**
|
|||
|
|
* Generates a hash code for the locale. Since Locales are often used in hashtables,
|
|||
|
|
* caches the value for speed.
|
|||
|
|
*/
|
|||
|
|
t_int32 hashCode() const;
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Retuns 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.
|
|||
|
|
*/
|
|||
|
|
static const Locale* getAvailableLocales(t_int32& count);
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Get the path to the ResourceBundle locale files. This path will be a
|
|||
|
|
* platform-specific path name ending in a directory separator, so that file
|
|||
|
|
* names may be concatenated to it. This path may be changed by calling
|
|||
|
|
* setDataDirectory(). If setDataDirectory() has not been called yet,
|
|||
|
|
* getDataDirectory() will return a platform-dependent default path as
|
|||
|
|
* specified by TPlatformUtilities::getDefaultDataDirectory().
|
|||
|
|
*
|
|||
|
|
* @return Current data path.
|
|||
|
|
*/
|
|||
|
|
static const char* getDataDirectory();
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Set the path to the ResourceBundle locale files. After making this call,
|
|||
|
|
* all objects in the Unicode Analytics package will read ResourceBundle
|
|||
|
|
* data files in the specified directory in order to obtain locale data.
|
|||
|
|
*
|
|||
|
|
* @param path The new data path to be set to.
|
|||
|
|
*/
|
|||
|
|
static void setDataDirectory(const char* path);
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Performs the functions necessary to terminate the library.
|
|||
|
|
*/
|
|||
|
|
static void terminateLibrary(void);
|
|||
|
|
|
|||
|
|
private:
|
|||
|
|
|
|||
|
|
enum EPOSIXPortion {
|
|||
|
|
LANGUAGE,
|
|||
|
|
COUNTRY,
|
|||
|
|
VARIANT
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
static void parsePOSIXID(const UnicodeString& str,
|
|||
|
|
UnicodeString& result,
|
|||
|
|
EPOSIXPortion part);
|
|||
|
|
private:
|
|||
|
|
// These strings describe the resources we attempt to load from
|
|||
|
|
// the locale ResourceBundle data file.
|
|||
|
|
static const char* kLocaleString;
|
|||
|
|
static const char* kShortLanguage;
|
|||
|
|
static const char* kShortCountry;
|
|||
|
|
static const char* kLocaleID;
|
|||
|
|
static const char* kLanguages;
|
|||
|
|
static const char* kCountries;
|
|||
|
|
|
|||
|
|
// The default locale we use if we can't get one from the host.
|
|||
|
|
static const char* kDefaultLocaleOfLastResort;
|
|||
|
|
|
|||
|
|
static Locale defaultLocale;
|
|||
|
|
static Locale* localeList;
|
|||
|
|
static t_int32 localeListCount;
|
|||
|
|
static char* fgDataDirectory;
|
|||
|
|
|
|||
|
|
UnicodeString id;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
#ifdef NLS_MAC
|
|||
|
|
#pragma export off
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
|
|||
|
|
inline t_int32
|
|||
|
|
Locale::hashCode() const
|
|||
|
|
{
|
|||
|
|
return( id.hashCode() );
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
inline t_bool
|
|||
|
|
Locale::operator==( const Locale& other) const
|
|||
|
|
{
|
|||
|
|
return (this == &other || id == other.id);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
inline t_bool
|
|||
|
|
Locale::operator!=(const Locale& other) const
|
|||
|
|
{
|
|||
|
|
return !operator==(other);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
#endif
|