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

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1 /*
2 ******************************************************************************
3 *
4 * Copyright (C) 1996-2013, International Business Machines
5 * Corporation and others. All Rights Reserved.
6 *
7 ******************************************************************************
8 *
9 * File locid.h
10 *
11 * Created by: Helena Shih
12 *
13 * Modification History:
14 *
15 * Date Name Description
16 * 02/11/97 aliu Changed gLocPath to fgLocPath and added methods to
17 * get and set it.
18 * 04/02/97 aliu Made operator!= inline; fixed return value of getName().
19 * 04/15/97 aliu Cleanup for AIX/Win32.
20 * 04/24/97 aliu Numerous changes per code review.
21 * 08/18/98 stephen Added tokenizeString(),changed getDisplayName()
22 * 09/08/98 stephen Moved definition of kEmptyString for Mac Port
23 * 11/09/99 weiv Added const char * getName() const;
24 * 04/12/00 srl removing unicodestring api's and cached hash code
25 * 08/10/01 grhoten Change the static Locales to accessor functions
26 ******************************************************************************
27 */
28
29 #ifndef LOCID_H
30 #define LOCID_H
31
32 #include "unicode/utypes.h"
33 #include "unicode/uobject.h"
34 #include "unicode/unistr.h"
35 #include "unicode/putil.h"
36 #include "unicode/uloc.h"
37 #include "unicode/strenum.h"
38
39 /**
40 * \file
41 * \brief C++ API: Locale ID object.
42 */
43
44 U_NAMESPACE_BEGIN
45
46 // Forward Declarations
47 void U_CALLCONV locale_available_init(); /**< @internal */
48
49 /**
50 * A <code>Locale</code> object represents a specific geographical, political,
51 * or cultural region. An operation that requires a <code>Locale</code> to perform
52 * its task is called <em>locale-sensitive</em> and uses the <code>Locale</code>
53 * to tailor information for the user. For example, displaying a number
54 * is a locale-sensitive operation--the number should be formatted
55 * according to the customs/conventions of the user's native country,
56 * region, or culture.
57 *
58 * The Locale class is not suitable for subclassing.
59 *
60 * <P>
61 * You can create a <code>Locale</code> object using the constructor in
62 * this class:
63 * \htmlonly<blockquote>\endhtmlonly
64 * <pre>
65 * Locale( const char* language,
66 * const char* country,
67 * const char* variant);
68 * </pre>
69 * \htmlonly</blockquote>\endhtmlonly
70 * The first argument to the constructors is a valid <STRONG>ISO
71 * Language Code.</STRONG> These codes are the lower-case two-letter
72 * codes as defined by ISO-639.
73 * You can find a full list of these codes at:
74 * <BR><a href ="http://www.loc.gov/standards/iso639-2/">
75 * http://www.loc.gov/standards/iso639-2/</a>
76 *
77 * <P>
78 * The second argument to the constructors is a valid <STRONG>ISO Country
79 * Code.</STRONG> These codes are the upper-case two-letter codes
80 * as defined by ISO-3166.
81 * You can find a full list of these codes at a number of sites, such as:
82 * <BR><a href="http://www.iso.org/iso/en/prods-services/iso3166ma/index.html">
83 * http://www.iso.org/iso/en/prods-services/iso3166ma/index.html</a>
84 *
85 * <P>
86 * The third constructor requires a third argument--the <STRONG>Variant.</STRONG>
87 * The Variant codes are vendor and browser-specific.
88 * For example, use REVISED for a langauge's revised script orthography, and POSIX for POSIX.
89 * Where there are two variants, separate them with an underscore, and
90 * put the most important one first. For
91 * example, a Traditional Spanish collation might be referenced, with
92 * "ES", "ES", "Traditional_POSIX".
93 *
94 * <P>
95 * Because a <code>Locale</code> object is just an identifier for a region,
96 * no validity check is performed when you construct a <code>Locale</code>.
97 * If you want to see whether particular resources are available for the
98 * <code>Locale</code> you construct, you must query those resources. For
99 * example, ask the <code>NumberFormat</code> for the locales it supports
100 * using its <code>getAvailableLocales</code> method.
101 * <BR><STRONG>Note:</STRONG> When you ask for a resource for a particular
102 * locale, you get back the best available match, not necessarily
103 * precisely what you asked for. For more information, look at
104 * <code>ResourceBundle</code>.
105 *
106 * <P>
107 * The <code>Locale</code> class provides a number of convenient constants
108 * that you can use to create <code>Locale</code> objects for commonly used
109 * locales. For example, the following refers to a <code>Locale</code> object
110 * for the United States:
111 * \htmlonly<blockquote>\endhtmlonly
112 * <pre>
113 * Locale::getUS()
114 * </pre>
115 * \htmlonly</blockquote>\endhtmlonly
116 *
117 * <P>
118 * Once you've created a <code>Locale</code> you can query it for information about
119 * itself. Use <code>getCountry</code> to get the ISO Country Code and
120 * <code>getLanguage</code> to get the ISO Language Code. You can
121 * use <code>getDisplayCountry</code> to get the
122 * name of the country suitable for displaying to the user. Similarly,
123 * you can use <code>getDisplayLanguage</code> to get the name of
124 * the language suitable for displaying to the user. Interestingly,
125 * the <code>getDisplayXXX</code> methods are themselves locale-sensitive
126 * and have two versions: one that uses the default locale and one
127 * that takes a locale as an argument and displays the name or country in
128 * a language appropriate to that locale.
129 *
130 * <P>
131 * ICU provides a number of classes that perform locale-sensitive
132 * operations. For example, the <code>NumberFormat</code> class formats
133 * numbers, currency, or percentages in a locale-sensitive manner. Classes
134 * such as <code>NumberFormat</code> have a number of convenience methods
135 * for creating a default object of that type. For example, the
136 * <code>NumberFormat</code> class provides these three convenience methods
137 * for creating a default <code>NumberFormat</code> object:
138 * \htmlonly<blockquote>\endhtmlonly
139 * <pre>
140 * UErrorCode success = U_ZERO_ERROR;
141 * Locale myLocale;
142 * NumberFormat *nf;
143 *
144 * nf = NumberFormat::createInstance( success ); delete nf;
145 * nf = NumberFormat::createCurrencyInstance( success ); delete nf;
146 * nf = NumberFormat::createPercentInstance( success ); delete nf;
147 * </pre>
148 * \htmlonly</blockquote>\endhtmlonly
149 * Each of these methods has two variants; one with an explicit locale
150 * and one without; the latter using the default locale.
151 * \htmlonly<blockquote>\endhtmlonly
152 * <pre>
153 * nf = NumberFormat::createInstance( myLocale, success ); delete nf;
154 * nf = NumberFormat::createCurrencyInstance( myLocale, success ); delete nf;
155 * nf = NumberFormat::createPercentInstance( myLocale, success ); delete nf;
156 * </pre>
157 * \htmlonly</blockquote>\endhtmlonly
158 * A <code>Locale</code> is the mechanism for identifying the kind of object
159 * (<code>NumberFormat</code>) that you would like to get. The locale is
160 * <STRONG>just</STRONG> a mechanism for identifying objects,
161 * <STRONG>not</STRONG> a container for the objects themselves.
162 *
163 * <P>
164 * Each class that performs locale-sensitive operations allows you
165 * to get all the available objects of that type. You can sift
166 * through these objects by language, country, or variant,
167 * and use the display names to present a menu to the user.
168 * For example, you can create a menu of all the collation objects
169 * suitable for a given language. Such classes implement these
170 * three class methods:
171 * \htmlonly<blockquote>\endhtmlonly
172 * <pre>
173 * static Locale* getAvailableLocales(int32_t& numLocales)
174 * static UnicodeString& getDisplayName(const Locale& objectLocale,
175 * const Locale& displayLocale,
176 * UnicodeString& displayName)
177 * static UnicodeString& getDisplayName(const Locale& objectLocale,
178 * UnicodeString& displayName)
179 * </pre>
180 * \htmlonly</blockquote>\endhtmlonly
181 *
182 * @stable ICU 2.0
183 * @see ResourceBundle
184 */
185 class U_COMMON_API Locale : public UObject {
186 public:
187 /** Useful constant for the Root locale. @stable ICU 4.4 */
188 static const Locale &U_EXPORT2 getRoot(void);
189 /** Useful constant for this language. @stable ICU 2.0 */
190 static const Locale &U_EXPORT2 getEnglish(void);
191 /** Useful constant for this language. @stable ICU 2.0 */
192 static const Locale &U_EXPORT2 getFrench(void);
193 /** Useful constant for this language. @stable ICU 2.0 */
194 static const Locale &U_EXPORT2 getGerman(void);
195 /** Useful constant for this language. @stable ICU 2.0 */
196 static const Locale &U_EXPORT2 getItalian(void);
197 /** Useful constant for this language. @stable ICU 2.0 */
198 static const Locale &U_EXPORT2 getJapanese(void);
199 /** Useful constant for this language. @stable ICU 2.0 */
200 static const Locale &U_EXPORT2 getKorean(void);
201 /** Useful constant for this language. @stable ICU 2.0 */
202 static const Locale &U_EXPORT2 getChinese(void);
203 /** Useful constant for this language. @stable ICU 2.0 */
204 static const Locale &U_EXPORT2 getSimplifiedChinese(void);
205 /** Useful constant for this language. @stable ICU 2.0 */
206 static const Locale &U_EXPORT2 getTraditionalChinese(void);
207
208 /** Useful constant for this country/region. @stable ICU 2.0 */
209 static const Locale &U_EXPORT2 getFrance(void);
210 /** Useful constant for this country/region. @stable ICU 2.0 */
211 static const Locale &U_EXPORT2 getGermany(void);
212 /** Useful constant for this country/region. @stable ICU 2.0 */
213 static const Locale &U_EXPORT2 getItaly(void);
214 /** Useful constant for this country/region. @stable ICU 2.0 */
215 static const Locale &U_EXPORT2 getJapan(void);
216 /** Useful constant for this country/region. @stable ICU 2.0 */
217 static const Locale &U_EXPORT2 getKorea(void);
218 /** Useful constant for this country/region. @stable ICU 2.0 */
219 static const Locale &U_EXPORT2 getChina(void);
220 /** Useful constant for this country/region. @stable ICU 2.0 */
221 static const Locale &U_EXPORT2 getPRC(void);
222 /** Useful constant for this country/region. @stable ICU 2.0 */
223 static const Locale &U_EXPORT2 getTaiwan(void);
224 /** Useful constant for this country/region. @stable ICU 2.0 */
225 static const Locale &U_EXPORT2 getUK(void);
226 /** Useful constant for this country/region. @stable ICU 2.0 */
227 static const Locale &U_EXPORT2 getUS(void);
228 /** Useful constant for this country/region. @stable ICU 2.0 */
229 static const Locale &U_EXPORT2 getCanada(void);
230 /** Useful constant for this country/region. @stable ICU 2.0 */
231 static const Locale &U_EXPORT2 getCanadaFrench(void);
232
233
234 /**
235 * Construct a default locale object, a Locale for the default locale ID.
236 *
237 * @see getDefault
238 * @see uloc_getDefault
239 * @stable ICU 2.0
240 */
241 Locale();
242
243 /**
244 * Construct a locale from language, country, variant.
245 * If an error occurs, then the constructed object will be "bogus"
246 * (isBogus() will return TRUE).
247 *
248 * @param language Lowercase two-letter or three-letter ISO-639 code.
249 * This parameter can instead be an ICU style C locale (e.g. "en_US"),
250 * but the other parameters must not be used.
251 * This parameter can be NULL; if so,
252 * the locale is initialized to match the current default locale.
253 * (This is the same as using the default constructor.)
254 * Please note: The Java Locale class does NOT accept the form
255 * 'new Locale("en_US")' but only 'new Locale("en","US")'
256 *
257 * @param country Uppercase two-letter ISO-3166 code. (optional)
258 * @param variant Uppercase vendor and browser specific code. See class
259 * description. (optional)
260 * @param keywordsAndValues A string consisting of keyword/values pairs, such as
261 * "collation=phonebook;currency=euro"
262 *
263 * @see getDefault
264 * @see uloc_getDefault
265 * @stable ICU 2.0
266 */
267 Locale( const char * language,
268 const char * country = 0,
269 const char * variant = 0,
270 const char * keywordsAndValues = 0);
271
272 /**
273 * Initializes a Locale object from another Locale object.
274 *
275 * @param other The Locale object being copied in.
276 * @stable ICU 2.0
277 */
278 Locale(const Locale& other);
279
280
281 /**
282 * Destructor
283 * @stable ICU 2.0
284 */
285 virtual ~Locale() ;
286
287 /**
288 * Replaces the entire contents of *this with the specified value.
289 *
290 * @param other The Locale object being copied in.
291 * @return *this
292 * @stable ICU 2.0
293 */
294 Locale& operator=(const Locale& other);
295
296 /**
297 * Checks if two locale keys are the same.
298 *
299 * @param other The locale key object to be compared with this.
300 * @return True if the two locale keys are the same, false otherwise.
301 * @stable ICU 2.0
302 */
303 UBool operator==(const Locale& other) const;
304
305 /**
306 * Checks if two locale keys are not the same.
307 *
308 * @param other The locale key object to be compared with this.
309 * @return True if the two locale keys are not the same, false
310 * otherwise.
311 * @stable ICU 2.0
312 */
313 UBool operator!=(const Locale& other) const;
314
315 /**
316 * Clone this object.
317 * Clones can be used concurrently in multiple threads.
318 * If an error occurs, then NULL is returned.
319 * The caller must delete the clone.
320 *
321 * @return a clone of this object
322 *
323 * @see getDynamicClassID
324 * @stable ICU 2.8
325 */
326 Locale *clone() const;
327
328 #ifndef U_HIDE_SYSTEM_API
329 /**
330 * Common methods of getting the current default Locale. Used for the
331 * presentation: menus, dialogs, etc. Generally set once when your applet or
332 * application is initialized, then never reset. (If you do reset the
333 * default locale, you probably want to reload your GUI, so that the change
334 * is reflected in your interface.)
335 *
336 * More advanced programs will allow users to use different locales for
337 * different fields, e.g. in a spreadsheet.
338 *
339 * Note that the initial setting will match the host system.
340 * @return a reference to the Locale object for the default locale ID
341 * @system
342 * @stable ICU 2.0
343 */
344 static const Locale& U_EXPORT2 getDefault(void);
345
346 /**
347 * Sets the default. Normally set once at the beginning of a process,
348 * then never reset.
349 * setDefault() only changes ICU's default locale ID, <strong>not</strong>
350 * the default locale ID of the runtime environment.
351 *
352 * @param newLocale Locale to set to. If NULL, set to the value obtained
353 * from the runtime environement.
354 * @param success The error code.
355 * @system
356 * @stable ICU 2.0
357 */
358 static void U_EXPORT2 setDefault(const Locale& newLocale,
359 UErrorCode& success);
360 #endif /* U_HIDE_SYSTEM_API */
361
362 /**
363 * Creates a locale which has had minimal canonicalization
364 * as per uloc_getName().
365 * @param name The name to create from. If name is null,
366 * the default Locale is used.
367 * @return new locale object
368 * @stable ICU 2.0
369 * @see uloc_getName
370 */
371 static Locale U_EXPORT2 createFromName(const char *name);
372
373 /**
374 * Creates a locale from the given string after canonicalizing
375 * the string by calling uloc_canonicalize().
376 * @param name the locale ID to create from. Must not be NULL.
377 * @return a new locale object corresponding to the given name
378 * @stable ICU 3.0
379 * @see uloc_canonicalize
380 */
381 static Locale U_EXPORT2 createCanonical(const char* name);
382
383 /**
384 * Returns the locale's ISO-639 language code.
385 * @return An alias to the code
386 * @stable ICU 2.0
387 */
388 inline const char * getLanguage( ) const;
389
390 /**
391 * Returns the locale's ISO-15924 abbreviation script code.
392 * @return An alias to the code
393 * @see uscript_getShortName
394 * @see uscript_getCode
395 * @stable ICU 2.8
396 */
397 inline const char * getScript( ) const;
398
399 /**
400 * Returns the locale's ISO-3166 country code.
401 * @return An alias to the code
402 * @stable ICU 2.0
403 */
404 inline const char * getCountry( ) const;
405
406 /**
407 * Returns the locale's variant code.
408 * @return An alias to the code
409 * @stable ICU 2.0
410 */
411 inline const char * getVariant( ) const;
412
413 /**
414 * Returns the programmatic name of the entire locale, with the language,
415 * country and variant separated by underbars. If a field is missing, up
416 * to two leading underbars will occur. Example: "en", "de_DE", "en_US_WIN",
417 * "de__POSIX", "fr__MAC", "__MAC", "_MT", "_FR_EURO"
418 * @return A pointer to "name".
419 * @stable ICU 2.0
420 */
421 inline const char * getName() const;
422
423 /**
424 * Returns the programmatic name of the entire locale as getName() would return,
425 * but without keywords.
426 * @return A pointer to "name".
427 * @see getName
428 * @stable ICU 2.8
429 */
430 const char * getBaseName() const;
431
432
433 /**
434 * Gets the list of keywords for the specified locale.
435 *
436 * @param status the status code
437 * @return pointer to StringEnumeration class, or NULL if there are no keywords.
438 * Client must dispose of it by calling delete.
439 * @stable ICU 2.8
440 */
441 StringEnumeration * createKeywords(UErrorCode &status) const;
442
443 /**
444 * Gets the value for a keyword.
445 *
446 * @param keywordName name of the keyword for which we want the value. Case insensitive.
447 * @param buffer The buffer to receive the keyword value.
448 * @param bufferCapacity The capacity of receiving buffer
449 * @param status Returns any error information while performing this operation.
450 * @return the length of the keyword value
451 *
452 * @stable ICU 2.8
453 */
454 int32_t getKeywordValue(const char* keywordName, char *buffer, int32_t bufferCapacity, UErrorCode &status) const;
455
456 /**
457 * Sets or removes the value for a keyword.
458 *
459 * For removing all keywords, use getBaseName(),
460 * and construct a new Locale if it differs from getName().
461 *
462 * @param keywordName name of the keyword to be set. Case insensitive.
463 * @param keywordValue value of the keyword to be set. If 0-length or
464 * NULL, will result in the keyword being removed. No error is given if
465 * that keyword does not exist.
466 * @param status Returns any error information while performing this operation.
467 *
468 * @stable ICU 49
469 */
470 void setKeywordValue(const char* keywordName, const char* keywordValue, UErrorCode &status);
471
472 /**
473 * returns the locale's three-letter language code, as specified
474 * in ISO draft standard ISO-639-2.
475 * @return An alias to the code, or an empty string
476 * @stable ICU 2.0
477 */
478 const char * getISO3Language() const;
479
480 /**
481 * Fills in "name" with the locale's three-letter ISO-3166 country code.
482 * @return An alias to the code, or an empty string
483 * @stable ICU 2.0
484 */
485 const char * getISO3Country() const;
486
487 /**
488 * Returns the Windows LCID value corresponding to this locale.
489 * This value is stored in the resource data for the locale as a one-to-four-digit
490 * hexadecimal number. If the resource is missing, in the wrong format, or
491 * there is no Windows LCID value that corresponds to this locale, returns 0.
492 * @stable ICU 2.0
493 */
494 uint32_t getLCID(void) const;
495
496 /**
497 * Fills in "dispLang" with the name of this locale's language in a format suitable for
498 * user display in the default locale. For example, if the locale's language code is
499 * "fr" and the default locale's language code is "en", this function would set
500 * dispLang to "French".
501 * @param dispLang Receives the language's display name.
502 * @return A reference to "dispLang".
503 * @stable ICU 2.0
504 */
505 UnicodeString& getDisplayLanguage(UnicodeString& dispLang) const;
506
507 /**
508 * Fills in "dispLang" with the name of this locale's language in a format suitable for
509 * user display in the locale specified by "displayLocale". For example, if the locale's
510 * language code is "en" and displayLocale's language code is "fr", this function would set
511 * dispLang to "Anglais".
512 * @param displayLocale Specifies the locale to be used to display the name. In other words,
513 * if the locale's language code is "en", passing Locale::getFrench() for
514 * displayLocale would result in "Anglais", while passing Locale::getGerman()
515 * for displayLocale would result in "Englisch".
516 * @param dispLang Receives the language's display name.
517 * @return A reference to "dispLang".
518 * @stable ICU 2.0
519 */
520 UnicodeString& getDisplayLanguage( const Locale& displayLocale,
521 UnicodeString& dispLang) const;
522
523 /**
524 * Fills in "dispScript" with the name of this locale's script in a format suitable
525 * for user display in the default locale. For example, if the locale's script code
526 * is "LATN" and the default locale's language code is "en", this function would set
527 * dispScript to "Latin".
528 * @param dispScript Receives the scripts's display name.
529 * @return A reference to "dispScript".
530 * @stable ICU 2.8
531 */
532 UnicodeString& getDisplayScript( UnicodeString& dispScript) const;
533
534 /**
535 * Fills in "dispScript" with the name of this locale's country in a format suitable
536 * for user display in the locale specified by "displayLocale". For example, if the locale's
537 * script code is "LATN" and displayLocale's language code is "en", this function would set
538 * dispScript to "Latin".
539 * @param displayLocale Specifies the locale to be used to display the name. In other
540 * words, if the locale's script code is "LATN", passing
541 * Locale::getFrench() for displayLocale would result in "", while
542 * passing Locale::getGerman() for displayLocale would result in
543 * "".
544 * @param dispScript Receives the scripts's display name.
545 * @return A reference to "dispScript".
546 * @stable ICU 2.8
547 */
548 UnicodeString& getDisplayScript( const Locale& displayLocale,
549 UnicodeString& dispScript) const;
550
551 /**
552 * Fills in "dispCountry" with the name of this locale's country in a format suitable
553 * for user display in the default locale. For example, if the locale's country code
554 * is "FR" and the default locale's language code is "en", this function would set
555 * dispCountry to "France".
556 * @param dispCountry Receives the country's display name.
557 * @return A reference to "dispCountry".
558 * @stable ICU 2.0
559 */
560 UnicodeString& getDisplayCountry( UnicodeString& dispCountry) const;
561
562 /**
563 * Fills in "dispCountry" with the name of this locale's country in a format suitable
564 * for user display in the locale specified by "displayLocale". For example, if the locale's
565 * country code is "US" and displayLocale's language code is "fr", this function would set
566 * dispCountry to "&Eacute;tats-Unis".
567 * @param displayLocale Specifies the locale to be used to display the name. In other
568 * words, if the locale's country code is "US", passing
569 * Locale::getFrench() for displayLocale would result in "&Eacute;tats-Unis", while
570 * passing Locale::getGerman() for displayLocale would result in
571 * "Vereinigte Staaten".
572 * @param dispCountry Receives the country's display name.
573 * @return A reference to "dispCountry".
574 * @stable ICU 2.0
575 */
576 UnicodeString& getDisplayCountry( const Locale& displayLocale,
577 UnicodeString& dispCountry) const;
578
579 /**
580 * Fills in "dispVar" with the name of this locale's variant code in a format suitable
581 * for user display in the default locale.
582 * @param dispVar Receives the variant's name.
583 * @return A reference to "dispVar".
584 * @stable ICU 2.0
585 */
586 UnicodeString& getDisplayVariant( UnicodeString& dispVar) const;
587
588 /**
589 * Fills in "dispVar" with the name of this locale's variant code in a format
590 * suitable for user display in the locale specified by "displayLocale".
591 * @param displayLocale Specifies the locale to be used to display the name.
592 * @param dispVar Receives the variant's display name.
593 * @return A reference to "dispVar".
594 * @stable ICU 2.0
595 */
596 UnicodeString& getDisplayVariant( const Locale& displayLocale,
597 UnicodeString& dispVar) const;
598
599 /**
600 * Fills in "name" with the name of this locale in a format suitable for user display
601 * in the default locale. This function uses getDisplayLanguage(), getDisplayCountry(),
602 * and getDisplayVariant() to do its work, and outputs the display name in the format
603 * "language (country[,variant])". For example, if the default locale is en_US, then
604 * fr_FR's display name would be "French (France)", and es_MX_Traditional's display name
605 * would be "Spanish (Mexico,Traditional)".
606 * @param name Receives the locale's display name.
607 * @return A reference to "name".
608 * @stable ICU 2.0
609 */
610 UnicodeString& getDisplayName( UnicodeString& name) const;
611
612 /**
613 * Fills in "name" with the name of this locale in a format suitable for user display
614 * in the locale specfied by "displayLocale". This function uses getDisplayLanguage(),
615 * getDisplayCountry(), and getDisplayVariant() to do its work, and outputs the display
616 * name in the format "language (country[,variant])". For example, if displayLocale is
617 * fr_FR, then en_US's display name would be "Anglais (&Eacute;tats-Unis)", and no_NO_NY's
618 * display name would be "norv&eacute;gien (Norv&egrave;ge,NY)".
619 * @param displayLocale Specifies the locale to be used to display the name.
620 * @param name Receives the locale's display name.
621 * @return A reference to "name".
622 * @stable ICU 2.0
623 */
624 UnicodeString& getDisplayName( const Locale& displayLocale,
625 UnicodeString& name) const;
626
627 /**
628 * Generates a hash code for the locale.
629 * @stable ICU 2.0
630 */
631 int32_t hashCode(void) const;
632
633 /**
634 * Sets the locale to bogus
635 * A bogus locale represents a non-existing locale associated
636 * with services that can be instantiated from non-locale data
637 * in addition to locale (for example, collation can be
638 * instantiated from a locale and from a rule set).
639 * @stable ICU 2.1
640 */
641 void setToBogus();
642
643 /**
644 * Gets the bogus state. Locale object can be bogus if it doesn't exist
645 * @return FALSE if it is a real locale, TRUE if it is a bogus locale
646 * @stable ICU 2.1
647 */
648 UBool isBogus(void) const;
649
650 /**
651 * Returns a list of all installed locales.
652 * @param count Receives the number of locales in the list.
653 * @return A pointer to an array of Locale objects. This array is the list
654 * of all locales with installed resource files. The called does NOT
655 * get ownership of this list, and must NOT delete it.
656 * @stable ICU 2.0
657 */
658 static const Locale* U_EXPORT2 getAvailableLocales(int32_t& count);
659
660 /**
661 * Gets a list of all available 2-letter country codes defined in ISO 3166. This is a
662 * pointer to an array of pointers to arrays of char. All of these pointers are
663 * owned by ICU-- do not delete them, and do not write through them. The array is
664 * terminated with a null pointer.
665 * @return a list of all available country codes
666 * @stable ICU 2.0
667 */
668 static const char* const* U_EXPORT2 getISOCountries();
669
670 /**
671 * Gets a list of all available language codes defined in ISO 639. This is a pointer
672 * to an array of pointers to arrays of char. All of these pointers are owned
673 * by ICU-- do not delete them, and do not write through them. The array is
674 * terminated with a null pointer.
675 * @return a list of all available language codes
676 * @stable ICU 2.0
677 */
678 static const char* const* U_EXPORT2 getISOLanguages();
679
680 /**
681 * ICU "poor man's RTTI", returns a UClassID for this class.
682 *
683 * @stable ICU 2.2
684 */
685 static UClassID U_EXPORT2 getStaticClassID();
686
687 /**
688 * ICU "poor man's RTTI", returns a UClassID for the actual class.
689 *
690 * @stable ICU 2.2
691 */
692 virtual UClassID getDynamicClassID() const;
693
694 protected: /* only protected for testing purposes. DO NOT USE. */
695 #ifndef U_HIDE_INTERNAL_API
696 /**
697 * Set this from a single POSIX style locale string.
698 * @internal
699 */
700 void setFromPOSIXID(const char *posixID);
701 #endif /* U_HIDE_INTERNAL_API */
702
703 private:
704 /**
705 * Initialize the locale object with a new name.
706 * Was deprecated - used in implementation - moved internal
707 *
708 * @param cLocaleID The new locale name.
709 * @param canonicalize whether to call uloc_canonicalize on cLocaleID
710 */
711 Locale& init(const char* cLocaleID, UBool canonicalize);
712
713 /*
714 * Internal constructor to allow construction of a locale object with
715 * NO side effects. (Default constructor tries to get
716 * the default locale.)
717 */
718 enum ELocaleType {
719 eBOGUS
720 };
721 Locale(ELocaleType);
722
723 /**
724 * Initialize the locale cache for commonly used locales
725 */
726 static Locale *getLocaleCache(void);
727
728 char language[ULOC_LANG_CAPACITY];
729 char script[ULOC_SCRIPT_CAPACITY];
730 char country[ULOC_COUNTRY_CAPACITY];
731 int32_t variantBegin;
732 char* fullName;
733 char fullNameBuffer[ULOC_FULLNAME_CAPACITY];
734 // name without keywords
735 char* baseName;
736 char baseNameBuffer[ULOC_FULLNAME_CAPACITY];
737
738 UBool fIsBogus;
739
740 static const Locale &getLocale(int locid);
741
742 /**
743 * A friend to allow the default locale to be set by either the C or C++ API.
744 * @internal
745 */
746 friend Locale *locale_set_default_internal(const char *, UErrorCode& status);
747
748 /**
749 * @internal
750 */
751 friend void locale_available_init();
752 };
753
754 inline UBool
755 Locale::operator!=(const Locale& other) const
756 {
757 return !operator==(other);
758 }
759
760 inline const char *
761 Locale::getCountry() const
762 {
763 return country;
764 }
765
766 inline const char *
767 Locale::getLanguage() const
768 {
769 return language;
770 }
771
772 inline const char *
773 Locale::getScript() const
774 {
775 return script;
776 }
777
778 inline const char *
779 Locale::getVariant() const
780 {
781 getBaseName(); // lazy init
782 return &baseName[variantBegin];
783 }
784
785 inline const char *
786 Locale::getName() const
787 {
788 return fullName;
789 }
790
791 inline UBool
792 Locale::isBogus(void) const {
793 return fIsBogus;
794 }
795
796 U_NAMESPACE_END
797
798 #endif

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