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Issue 18836004: Move ICU headers from public/{common,i18n} to source/{common,i18n} (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/icu46.git@master
Patch Set: same as ps #3. retry uploading Created 7 years, 5 months ago
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1 /*
2 **********************************************************************
3 * Copyright (C) 1997-2010, International Business Machines
4 * Corporation and others. All Rights Reserved.
5 **********************************************************************
6 *
7 * File ULOC.H
8 *
9 * Modification History:
10 *
11 * Date Name Description
12 * 04/01/97 aliu Creation.
13 * 08/22/98 stephen JDK 1.2 sync.
14 * 12/08/98 rtg New C API for Locale
15 * 03/30/99 damiba overhaul
16 * 03/31/99 helena Javadoc for uloc functions.
17 * 04/15/99 Madhu Updated Javadoc
18 ********************************************************************************
19 */
20
21 #ifndef ULOC_H
22 #define ULOC_H
23
24 #include "unicode/utypes.h"
25 #include "unicode/uenum.h"
26
27 /**
28 * \file
29 * \brief C API: Locale
30 *
31 * <h2> ULoc C API for Locale </h2>
32 * A <code>Locale</code> represents a specific geographical, political,
33 * or cultural region. An operation that requires a <code>Locale</code> to perfo rm
34 * its task is called <em>locale-sensitive</em> and uses the <code>Locale</code>
35 * to tailor information for the user. For example, displaying a number
36 * is a locale-sensitive operation--the number should be formatted
37 * according to the customs/conventions of the user's native country,
38 * region, or culture. In the C APIs, a locales is simply a const char string.
39 *
40 * <P>
41 * You create a <code>Locale</code> with one of the three options listed below.
42 * Each of the component is separated by '_' in the locale string.
43 * \htmlonly<blockquote>\endhtmlonly
44 * <pre>
45 * \code
46 * newLanguage
47 *
48 * newLanguage + newCountry
49 *
50 * newLanguage + newCountry + newVariant
51 * \endcode
52 * </pre>
53 * \htmlonly</blockquote>\endhtmlonly
54 * The first option is a valid <STRONG>ISO
55 * Language Code.</STRONG> These codes are the lower-case two-letter
56 * codes as defined by ISO-639.
57 * You can find a full list of these codes at a number of sites, such as:
58 * <BR><a href ="http://www.ics.uci.edu/pub/ietf/http/related/iso639.txt">
59 * http://www.ics.uci.edu/pub/ietf/http/related/iso639.txt</a>
60 *
61 * <P>
62 * The second option includes an additonal <STRONG>ISO Country
63 * Code.</STRONG> These codes are the upper-case two-letter codes
64 * as defined by ISO-3166.
65 * You can find a full list of these codes at a number of sites, such as:
66 * <BR><a href="http://www.chemie.fu-berlin.de/diverse/doc/ISO_3166.html">
67 * http://www.chemie.fu-berlin.de/diverse/doc/ISO_3166.html</a>
68 *
69 * <P>
70 * The third option requires another additonal information--the
71 * <STRONG>Variant.</STRONG>
72 * The Variant codes are vendor and browser-specific.
73 * For example, use WIN for Windows, MAC for Macintosh, and POSIX for POSIX.
74 * Where there are two variants, separate them with an underscore, and
75 * put the most important one first. For
76 * example, a Traditional Spanish collation might be referenced, with
77 * "ES", "ES", "Traditional_WIN".
78 *
79 * <P>
80 * Because a <code>Locale</code> is just an identifier for a region,
81 * no validity check is performed when you specify a <code>Locale</code>.
82 * If you want to see whether particular resources are available for the
83 * <code>Locale</code> you asked for, you must query those resources. For
84 * example, ask the <code>UNumberFormat</code> for the locales it supports
85 * using its <code>getAvailable</code> method.
86 * <BR><STRONG>Note:</STRONG> When you ask for a resource for a particular
87 * locale, you get back the best available match, not necessarily
88 * precisely what you asked for. For more information, look at
89 * <code>UResourceBundle</code>.
90 *
91 * <P>
92 * The <code>Locale</code> provides a number of convenient constants
93 * that you can use to specify the commonly used
94 * locales. For example, the following refers to a locale
95 * for the United States:
96 * \htmlonly<blockquote>\endhtmlonly
97 * <pre>
98 * \code
99 * ULOC_US
100 * \endcode
101 * </pre>
102 * \htmlonly</blockquote>\endhtmlonly
103 *
104 * <P>
105 * Once you've specified a locale you can query it for information about
106 * itself. Use <code>uloc_getCountry</code> to get the ISO Country Code and
107 * <code>uloc_getLanguage</code> to get the ISO Language Code. You can
108 * use <code>uloc_getDisplayCountry</code> to get the
109 * name of the country suitable for displaying to the user. Similarly,
110 * you can use <code>uloc_getDisplayLanguage</code> to get the name of
111 * the language suitable for displaying to the user. Interestingly,
112 * the <code>uloc_getDisplayXXX</code> methods are themselves locale-sensitive
113 * and have two versions: one that uses the default locale and one
114 * that takes a locale as an argument and displays the name or country in
115 * a language appropriate to that locale.
116 *
117 * <P>
118 * The ICU provides a number of services that perform locale-sensitive
119 * operations. For example, the <code>unum_xxx</code> functions format
120 * numbers, currency, or percentages in a locale-sensitive manner.
121 * </P>
122 * \htmlonly<blockquote>\endhtmlonly
123 * <pre>
124 * \code
125 * UErrorCode success = U_ZERO_ERROR;
126 * UNumberFormat *nf;
127 * const char* myLocale = "fr_FR";
128 *
129 * nf = unum_open( UNUM_DEFAULT, NULL, success );
130 * unum_close(nf);
131 * nf = unum_open( UNUM_CURRENCY, NULL, success );
132 * unum_close(nf);
133 * nf = unum_open( UNUM_PERCENT, NULL, success );
134 * unum_close(nf);
135 * \endcode
136 * </pre>
137 * \htmlonly</blockquote>\endhtmlonly
138 * Each of these methods has two variants; one with an explicit locale
139 * and one without; the latter using the default locale.
140 * \htmlonly<blockquote>\endhtmlonly
141 * <pre>
142 * \code
143 *
144 * nf = unum_open( UNUM_DEFAULT, myLocale, success );
145 * unum_close(nf);
146 * nf = unum_open( UNUM_CURRENCY, myLocale, success );
147 * unum_close(nf);
148 * nf = unum_open( UNUM_PERCENT, myLocale, success );
149 * unum_close(nf);
150 * \endcode
151 * </pre>
152 * \htmlonly</blockquote>\endhtmlonly
153 * A <code>Locale</code> is the mechanism for identifying the kind of services
154 * (<code>UNumberFormat</code>) that you would like to get. The locale is
155 * <STRONG>just</STRONG> a mechanism for identifying these services.
156 *
157 * <P>
158 * Each international serivce that performs locale-sensitive operations
159 * allows you
160 * to get all the available objects of that type. You can sift
161 * through these objects by language, country, or variant,
162 * and use the display names to present a menu to the user.
163 * For example, you can create a menu of all the collation objects
164 * suitable for a given language. Such classes implement these
165 * three class methods:
166 * \htmlonly<blockquote>\endhtmlonly
167 * <pre>
168 * \code
169 * const char* uloc_getAvailable(int32_t index);
170 * int32_t uloc_countAvailable();
171 * int32_t
172 * uloc_getDisplayName(const char* localeID,
173 * const char* inLocaleID,
174 * UChar* result,
175 * int32_t maxResultSize,
176 * UErrorCode* err);
177 *
178 * \endcode
179 * </pre>
180 * \htmlonly</blockquote>\endhtmlonly
181 * <P>
182 * Concerning POSIX/RFC1766 Locale IDs,
183 * the getLanguage/getCountry/getVariant/getName functions do understand
184 * the POSIX type form of language_COUNTRY.ENCODING\@VARIANT
185 * and if there is not an ICU-stype variant, uloc_getVariant() for example
186 * will return the one listed after the \@at sign. As well, the hyphen
187 * "-" is recognized as a country/variant separator similarly to RFC1766.
188 * So for example, "en-us" will be interpreted as en_US.
189 * As a result, uloc_getName() is far from a no-op, and will have the
190 * effect of converting POSIX/RFC1766 IDs into ICU form, although it does
191 * NOT map any of the actual codes (i.e. russian->ru) in any way.
192 * Applications should call uloc_getName() at the point where a locale ID
193 * is coming from an external source (user entry, OS, web browser)
194 * and pass the resulting string to other ICU functions. For example,
195 * don't use de-de\@EURO as an argument to resourcebundle.
196 *
197 * @see UResourceBundle
198 */
199
200 /** Useful constant for this language. @stable ICU 2.0 */
201 #define ULOC_CHINESE "zh"
202 /** Useful constant for this language. @stable ICU 2.0 */
203 #define ULOC_ENGLISH "en"
204 /** Useful constant for this language. @stable ICU 2.0 */
205 #define ULOC_FRENCH "fr"
206 /** Useful constant for this language. @stable ICU 2.0 */
207 #define ULOC_GERMAN "de"
208 /** Useful constant for this language. @stable ICU 2.0 */
209 #define ULOC_ITALIAN "it"
210 /** Useful constant for this language. @stable ICU 2.0 */
211 #define ULOC_JAPANESE "ja"
212 /** Useful constant for this language. @stable ICU 2.0 */
213 #define ULOC_KOREAN "ko"
214 /** Useful constant for this language. @stable ICU 2.0 */
215 #define ULOC_SIMPLIFIED_CHINESE "zh_CN"
216 /** Useful constant for this language. @stable ICU 2.0 */
217 #define ULOC_TRADITIONAL_CHINESE "zh_TW"
218
219 /** Useful constant for this country/region. @stable ICU 2.0 */
220 #define ULOC_CANADA "en_CA"
221 /** Useful constant for this country/region. @stable ICU 2.0 */
222 #define ULOC_CANADA_FRENCH "fr_CA"
223 /** Useful constant for this country/region. @stable ICU 2.0 */
224 #define ULOC_CHINA "zh_CN"
225 /** Useful constant for this country/region. @stable ICU 2.0 */
226 #define ULOC_PRC "zh_CN"
227 /** Useful constant for this country/region. @stable ICU 2.0 */
228 #define ULOC_FRANCE "fr_FR"
229 /** Useful constant for this country/region. @stable ICU 2.0 */
230 #define ULOC_GERMANY "de_DE"
231 /** Useful constant for this country/region. @stable ICU 2.0 */
232 #define ULOC_ITALY "it_IT"
233 /** Useful constant for this country/region. @stable ICU 2.0 */
234 #define ULOC_JAPAN "ja_JP"
235 /** Useful constant for this country/region. @stable ICU 2.0 */
236 #define ULOC_KOREA "ko_KR"
237 /** Useful constant for this country/region. @stable ICU 2.0 */
238 #define ULOC_TAIWAN "zh_TW"
239 /** Useful constant for this country/region. @stable ICU 2.0 */
240 #define ULOC_UK "en_GB"
241 /** Useful constant for this country/region. @stable ICU 2.0 */
242 #define ULOC_US "en_US"
243
244 /**
245 * Useful constant for the maximum size of the language part of a locale ID.
246 * (including the terminating NULL).
247 * @stable ICU 2.0
248 */
249 #define ULOC_LANG_CAPACITY 12
250
251 /**
252 * Useful constant for the maximum size of the country part of a locale ID
253 * (including the terminating NULL).
254 * @stable ICU 2.0
255 */
256 #define ULOC_COUNTRY_CAPACITY 4
257 /**
258 * Useful constant for the maximum size of the whole locale ID
259 * (including the terminating NULL and all keywords).
260 * @stable ICU 2.0
261 */
262 #define ULOC_FULLNAME_CAPACITY 157
263
264 /**
265 * Useful constant for the maximum size of the script part of a locale ID
266 * (including the terminating NULL).
267 * @stable ICU 2.8
268 */
269 #define ULOC_SCRIPT_CAPACITY 6
270
271 /**
272 * Useful constant for the maximum size of keywords in a locale
273 * @stable ICU 2.8
274 */
275 #define ULOC_KEYWORDS_CAPACITY 50
276
277 /**
278 * Useful constant for the maximum total size of keywords and their values in a locale
279 * @stable ICU 2.8
280 */
281 #define ULOC_KEYWORD_AND_VALUES_CAPACITY 100
282
283 /**
284 * Invariant character separating keywords from the locale string
285 * @stable ICU 2.8
286 */
287 #define ULOC_KEYWORD_SEPARATOR '@'
288
289 /**
290 * Unicode code point for '@' separating keywords from the locale string.
291 * @see ULOC_KEYWORD_SEPARATOR
292 * @draft ICU 4.6
293 */
294 #define ULOC_KEYWORD_SEPARATOR_UNICODE 0x40
295
296 /**
297 * Invariant character for assigning value to a keyword
298 * @stable ICU 2.8
299 */
300 #define ULOC_KEYWORD_ASSIGN '='
301
302 /**
303 * Unicode code point for '=' for assigning value to a keyword.
304 * @see ULOC_KEYWORD_ASSIGN
305 * @draft ICU 4.6
306 */
307 #define ULOC_KEYWORD_ASSIGN_UNICODE 0x3D
308
309 /**
310 * Invariant character separating keywords
311 * @stable ICU 2.8
312 */
313 #define ULOC_KEYWORD_ITEM_SEPARATOR ';'
314
315 /**
316 * Unicode code point for ';' separating keywords
317 * @see ULOC_KEYWORD_ITEM_SEPARATOR
318 * @draft ICU 4.6
319 */
320 #define ULOC_KEYWORD_ITEM_SEPARATOR_UNICODE 0x3B
321
322 /**
323 * Constants for *_getLocale()
324 * Allow user to select whether she wants information on
325 * requested, valid or actual locale.
326 * For example, a collator for "en_US_CALIFORNIA" was
327 * requested. In the current state of ICU (2.0),
328 * the requested locale is "en_US_CALIFORNIA",
329 * the valid locale is "en_US" (most specific locale supported by ICU)
330 * and the actual locale is "root" (the collation data comes unmodified
331 * from the UCA)
332 * The locale is considered supported by ICU if there is a core ICU bundle
333 * for that locale (although it may be empty).
334 * @stable ICU 2.1
335 */
336 typedef enum {
337 /** This is locale the data actually comes from
338 * @stable ICU 2.1
339 */
340 ULOC_ACTUAL_LOCALE = 0,
341 /** This is the most specific locale supported by ICU
342 * @stable ICU 2.1
343 */
344 ULOC_VALID_LOCALE = 1,
345
346 #ifndef U_HIDE_DEPRECATED_API
347 /** This is the requested locale
348 * @deprecated ICU 2.8
349 */
350 ULOC_REQUESTED_LOCALE = 2,
351 #endif /* U_HIDE_DEPRECATED_API */
352
353 ULOC_DATA_LOCALE_TYPE_LIMIT = 3
354 } ULocDataLocaleType ;
355
356
357 /**
358 * Gets ICU's default locale.
359 * The returned string is a snapshot in time, and will remain valid
360 * and unchanged even when uloc_setDefault() is called.
361 * The returned storage is owned by ICU, and must not be altered or deleted
362 * by the caller.
363 *
364 * @return the ICU default locale
365 * @system
366 * @stable ICU 2.0
367 */
368 U_STABLE const char* U_EXPORT2
369 uloc_getDefault(void);
370
371 /**
372 * Sets ICU's default locale.
373 * By default (without calling this function), ICU's default locale will be b ased
374 * on information obtained from the underlying system environment.
375 * <p>
376 * Changes to ICU's default locale do not propagate back to the
377 * system environment.
378 * <p>
379 * Changes to ICU's default locale to not affect any ICU services that
380 * may already be open based on the previous default locale value.
381 *
382 * @param localeID the new ICU default locale. A value of NULL will try to get
383 * the system's default locale.
384 * @param status the error information if the setting of default locale fails
385 * @system
386 * @stable ICU 2.0
387 */
388 U_STABLE void U_EXPORT2
389 uloc_setDefault(const char* localeID,
390 UErrorCode* status);
391
392 /**
393 * Gets the language code for the specified locale.
394 *
395 * @param localeID the locale to get the ISO language code with
396 * @param language the language code for localeID
397 * @param languageCapacity the size of the language buffer to store the
398 * language code with
399 * @param err error information if retrieving the language code failed
400 * @return the actual buffer size needed for the language code. If it's greater
401 * than languageCapacity, the returned language code will be truncated.
402 * @stable ICU 2.0
403 */
404 U_STABLE int32_t U_EXPORT2
405 uloc_getLanguage(const char* localeID,
406 char* language,
407 int32_t languageCapacity,
408 UErrorCode* err);
409
410 /**
411 * Gets the script code for the specified locale.
412 *
413 * @param localeID the locale to get the ISO language code with
414 * @param script the language code for localeID
415 * @param scriptCapacity the size of the language buffer to store the
416 * language code with
417 * @param err error information if retrieving the language code failed
418 * @return the actual buffer size needed for the language code. If it's greater
419 * than scriptCapacity, the returned language code will be truncated.
420 * @stable ICU 2.8
421 */
422 U_STABLE int32_t U_EXPORT2
423 uloc_getScript(const char* localeID,
424 char* script,
425 int32_t scriptCapacity,
426 UErrorCode* err);
427
428 /**
429 * Gets the country code for the specified locale.
430 *
431 * @param localeID the locale to get the country code with
432 * @param country the country code for localeID
433 * @param countryCapacity the size of the country buffer to store the
434 * country code with
435 * @param err error information if retrieving the country code failed
436 * @return the actual buffer size needed for the country code. If it's greater
437 * than countryCapacity, the returned country code will be truncated.
438 * @stable ICU 2.0
439 */
440 U_STABLE int32_t U_EXPORT2
441 uloc_getCountry(const char* localeID,
442 char* country,
443 int32_t countryCapacity,
444 UErrorCode* err);
445
446 /**
447 * Gets the variant code for the specified locale.
448 *
449 * @param localeID the locale to get the variant code with
450 * @param variant the variant code for localeID
451 * @param variantCapacity the size of the variant buffer to store the
452 * variant code with
453 * @param err error information if retrieving the variant code failed
454 * @return the actual buffer size needed for the variant code. If it's greater
455 * than variantCapacity, the returned variant code will be truncated.
456 * @stable ICU 2.0
457 */
458 U_STABLE int32_t U_EXPORT2
459 uloc_getVariant(const char* localeID,
460 char* variant,
461 int32_t variantCapacity,
462 UErrorCode* err);
463
464
465 /**
466 * Gets the full name for the specified locale.
467 * Note: This has the effect of 'canonicalizing' the ICU locale ID to
468 * a certain extent. Upper and lower case are set as needed.
469 * It does NOT map aliased names in any way.
470 * See the top of this header file.
471 * This API supports preflighting.
472 *
473 * @param localeID the locale to get the full name with
474 * @param name fill in buffer for the name without keywords.
475 * @param nameCapacity capacity of the fill in buffer.
476 * @param err error information if retrieving the full name failed
477 * @return the actual buffer size needed for the full name. If it's greater
478 * than nameCapacity, the returned full name will be truncated.
479 * @stable ICU 2.0
480 */
481 U_STABLE int32_t U_EXPORT2
482 uloc_getName(const char* localeID,
483 char* name,
484 int32_t nameCapacity,
485 UErrorCode* err);
486
487 /**
488 * Gets the full name for the specified locale.
489 * Note: This has the effect of 'canonicalizing' the string to
490 * a certain extent. Upper and lower case are set as needed,
491 * and if the components were in 'POSIX' format they are changed to
492 * ICU format. It does NOT map aliased names in any way.
493 * See the top of this header file.
494 *
495 * @param localeID the locale to get the full name with
496 * @param name the full name for localeID
497 * @param nameCapacity the size of the name buffer to store the
498 * full name with
499 * @param err error information if retrieving the full name failed
500 * @return the actual buffer size needed for the full name. If it's greater
501 * than nameCapacity, the returned full name will be truncated.
502 * @stable ICU 2.8
503 */
504 U_STABLE int32_t U_EXPORT2
505 uloc_canonicalize(const char* localeID,
506 char* name,
507 int32_t nameCapacity,
508 UErrorCode* err);
509
510 /**
511 * Gets the ISO language code for the specified locale.
512 *
513 * @param localeID the locale to get the ISO language code with
514 * @return language the ISO language code for localeID
515 * @stable ICU 2.0
516 */
517 U_STABLE const char* U_EXPORT2
518 uloc_getISO3Language(const char* localeID);
519
520
521 /**
522 * Gets the ISO country code for the specified locale.
523 *
524 * @param localeID the locale to get the ISO country code with
525 * @return country the ISO country code for localeID
526 * @stable ICU 2.0
527 */
528 U_STABLE const char* U_EXPORT2
529 uloc_getISO3Country(const char* localeID);
530
531 /**
532 * Gets the Win32 LCID value for the specified locale.
533 * If the ICU locale is not recognized by Windows, 0 will be returned.
534 *
535 * @param localeID the locale to get the Win32 LCID value with
536 * @return country the Win32 LCID for localeID
537 * @stable ICU 2.0
538 */
539 U_STABLE uint32_t U_EXPORT2
540 uloc_getLCID(const char* localeID);
541
542 /**
543 * Gets the language name suitable for display for the specified locale.
544 *
545 * @param locale the locale to get the ISO language code with
546 * @param displayLocale Specifies the locale to be used to display the name. In other words,
547 * if the locale's language code is "en", passing Locale::getFre nch() for
548 * inLocale would result in "Anglais", while passing Locale::get German()
549 * for inLocale would result in "Englisch".
550 * @param language the displayable language code for localeID
551 * @param languageCapacity the size of the language buffer to store the
552 * displayable language code with
553 * @param status error information if retrieving the displayable language code f ailed
554 * @return the actual buffer size needed for the displayable language code. If it's greater
555 * than languageCapacity, the returned language code will be truncated.
556 * @stable ICU 2.0
557 */
558 U_STABLE int32_t U_EXPORT2
559 uloc_getDisplayLanguage(const char* locale,
560 const char* displayLocale,
561 UChar* language,
562 int32_t languageCapacity,
563 UErrorCode* status);
564
565 /**
566 * Gets the script name suitable for display for the specified locale.
567 *
568 * @param locale the locale to get the displayable script code with. NULL may be used to specify the default.
569 * @param displayLocale Specifies the locale to be used to display the name. In other words,
570 * if the locale's language code is "en", passing Locale::getFre nch() for
571 * inLocale would result in "", while passing Locale::getGerman( )
572 * for inLocale would result in "". NULL may be used to specify the default.
573 * @param script the displayable country code for localeID
574 * @param scriptCapacity the size of the script buffer to store the
575 * displayable script code with
576 * @param status error information if retrieving the displayable script code fai led
577 * @return the actual buffer size needed for the displayable script code. If it 's greater
578 * than scriptCapacity, the returned displayable script code will be truncated.
579 * @stable ICU 2.8
580 */
581 U_STABLE int32_t U_EXPORT2
582 uloc_getDisplayScript(const char* locale,
583 const char* displayLocale,
584 UChar* script,
585 int32_t scriptCapacity,
586 UErrorCode* status);
587
588 /**
589 * Gets the country name suitable for display for the specified locale.
590 *
591 * @param locale the locale to get the displayable country code with. NULL may b e used to specify the default.
592 * @param displayLocale Specifies the locale to be used to display the name. In other words,
593 * if the locale's language code is "en", passing Locale::getFre nch() for
594 * inLocale would result in "Anglais", while passing Locale::get German()
595 * for inLocale would result in "Englisch". NULL may be used to specify the default.
596 * @param country the displayable country code for localeID
597 * @param countryCapacity the size of the country buffer to store the
598 * displayable country code with
599 * @param status error information if retrieving the displayable country code fa iled
600 * @return the actual buffer size needed for the displayable country code. If i t's greater
601 * than countryCapacity, the returned displayable country code will be truncated .
602 * @stable ICU 2.0
603 */
604 U_STABLE int32_t U_EXPORT2
605 uloc_getDisplayCountry(const char* locale,
606 const char* displayLocale,
607 UChar* country,
608 int32_t countryCapacity,
609 UErrorCode* status);
610
611
612 /**
613 * Gets the variant name suitable for display for the specified locale.
614 *
615 * @param locale the locale to get the displayable variant code with. NULL may b e used to specify the default.
616 * @param displayLocale Specifies the locale to be used to display the name. In other words,
617 * if the locale's language code is "en", passing Locale::getFre nch() for
618 * inLocale would result in "Anglais", while passing Locale::get German()
619 * for inLocale would result in "Englisch". NULL may be used to specify the default.
620 * @param variant the displayable variant code for localeID
621 * @param variantCapacity the size of the variant buffer to store the
622 * displayable variant code with
623 * @param status error information if retrieving the displayable variant code fa iled
624 * @return the actual buffer size needed for the displayable variant code. If i t's greater
625 * than variantCapacity, the returned displayable variant code will be truncated .
626 * @stable ICU 2.0
627 */
628 U_STABLE int32_t U_EXPORT2
629 uloc_getDisplayVariant(const char* locale,
630 const char* displayLocale,
631 UChar* variant,
632 int32_t variantCapacity,
633 UErrorCode* status);
634
635 /**
636 * Gets the keyword name suitable for display for the specified locale.
637 * E.g: for the locale string de_DE\@collation=PHONEBOOK, this API gets the disp lay
638 * string for the keyword collation.
639 * Usage:
640 * <code>
641 * UErrorCode status = U_ZERO_ERROR;
642 * const char* keyword =NULL;
643 * int32_t keywordLen = 0;
644 * int32_t keywordCount = 0;
645 * UChar displayKeyword[256];
646 * int32_t displayKeywordLen = 0;
647 * UEnumeration* keywordEnum = uloc_openKeywords("de_DE@collation=PHONEBOOK;c alendar=TRADITIONAL", &status);
648 * for(keywordCount = uenum_count(keywordEnum, &status); keywordCount > 0 ; k eywordCount--){
649 * if(U_FAILURE(status)){
650 * ...something went wrong so handle the error...
651 * break;
652 * }
653 * // the uenum_next returns NUL terminated string
654 * keyword = uenum_next(keywordEnum, &keywordLen, &status);
655 * displayKeywordLen = uloc_getDisplayKeyword(keyword, "en_US", display Keyword, 256);
656 * ... do something interesting .....
657 * }
658 * uenum_close(keywordEnum);
659 * </code>
660 * @param keyword The keyword whose display string needs to be returne d.
661 * @param displayLocale Specifies the locale to be used to display the name. In other words,
662 * if the locale's language code is "en", passing Local e::getFrench() for
663 * inLocale would result in "Anglais", while passing Lo cale::getGerman()
664 * for inLocale would result in "Englisch". NULL may be used to specify the default.
665 * @param dest the buffer to which the displayable keyword should b e written.
666 * @param destCapacity The size of the buffer (number of UChars). If it is 0, then
667 * dest may be NULL and the function will only return t he length of the
668 * result without writing any of the result string (pre -flighting).
669 * @param status error information if retrieving the displayable stri ng failed.
670 * Should not be NULL and should not indicate failure o n entry.
671 * @return the actual buffer size needed for the displayable variant code.
672 * @see #uloc_openKeywords
673 * @stable ICU 2.8
674 */
675 U_STABLE int32_t U_EXPORT2
676 uloc_getDisplayKeyword(const char* keyword,
677 const char* displayLocale,
678 UChar* dest,
679 int32_t destCapacity,
680 UErrorCode* status);
681 /**
682 * Gets the value of the keyword suitable for display for the specified locale.
683 * E.g: for the locale string de_DE\@collation=PHONEBOOK, this API gets the disp lay
684 * string for PHONEBOOK, in the display locale, when "collation" is specified as the keyword.
685 *
686 * @param locale The locale to get the displayable variant code with. NULL may be used to specify the default.
687 * @param keyword The keyword for whose value should be used.
688 * @param displayLocale Specifies the locale to be used to display the name. In other words,
689 * if the locale's language code is "en", passing Local e::getFrench() for
690 * inLocale would result in "Anglais", while passing Lo cale::getGerman()
691 * for inLocale would result in "Englisch". NULL may be used to specify the default.
692 * @param dest the buffer to which the displayable keyword should b e written.
693 * @param destCapacity The size of the buffer (number of UChars). If it is 0, then
694 * dest may be NULL and the function will only return t he length of the
695 * result without writing any of the result string (pre -flighting).
696 * @param status error information if retrieving the displayable stri ng failed.
697 * Should not be NULL and must not indicate failure on entry.
698 * @return the actual buffer size needed for the displayable variant code.
699 * @stable ICU 2.8
700 */
701 U_STABLE int32_t U_EXPORT2
702 uloc_getDisplayKeywordValue( const char* locale,
703 const char* keyword,
704 const char* displayLocale,
705 UChar* dest,
706 int32_t destCapacity,
707 UErrorCode* status);
708 /**
709 * Gets the full name suitable for display for the specified locale.
710 *
711 * @param localeID the locale to get the displayable name with. NULL may be used to specify the default.
712 * @param inLocaleID Specifies the locale to be used to display the name. In ot her words,
713 * if the locale's language code is "en", passing Locale::getF rench() for
714 * inLocale would result in "Anglais", while passing Locale::g etGerman()
715 * for inLocale would result in "Englisch". NULL may be used t o specify the default.
716 * @param result the displayable name for localeID
717 * @param maxResultSize the size of the name buffer to store the
718 * displayable full name with
719 * @param err error information if retrieving the displayable name failed
720 * @return the actual buffer size needed for the displayable name. If it's grea ter
721 * than maxResultSize, the returned displayable name will be truncated.
722 * @stable ICU 2.0
723 */
724 U_STABLE int32_t U_EXPORT2
725 uloc_getDisplayName(const char* localeID,
726 const char* inLocaleID,
727 UChar* result,
728 int32_t maxResultSize,
729 UErrorCode* err);
730
731
732 /**
733 * Gets the specified locale from a list of all available locales.
734 * The return value is a pointer to an item of
735 * a locale name array. Both this array and the pointers
736 * it contains are owned by ICU and should not be deleted or written through
737 * by the caller. The locale name is terminated by a null pointer.
738 * @param n the specific locale name index of the available locale list
739 * @return a specified locale name of all available locales
740 * @stable ICU 2.0
741 */
742 U_STABLE const char* U_EXPORT2
743 uloc_getAvailable(int32_t n);
744
745 /**
746 * Gets the size of the all available locale list.
747 *
748 * @return the size of the locale list
749 * @stable ICU 2.0
750 */
751 U_STABLE int32_t U_EXPORT2 uloc_countAvailable(void);
752
753 /**
754 *
755 * Gets a list of all available language codes defined in ISO 639. This is a po inter
756 * to an array of pointers to arrays of char. All of these pointers are owned
757 * by ICU-- do not delete them, and do not write through them. The array is
758 * terminated with a null pointer.
759 * @return a list of all available language codes
760 * @stable ICU 2.0
761 */
762 U_STABLE const char* const* U_EXPORT2
763 uloc_getISOLanguages(void);
764
765 /**
766 *
767 * Gets a list of all available 2-letter country codes defined in ISO 639. This is a
768 * pointer to an array of pointers to arrays of char. All of these pointers are
769 * owned by ICU-- do not delete them, and do not write through them. The array is
770 * terminated with a null pointer.
771 * @return a list of all available country codes
772 * @stable ICU 2.0
773 */
774 U_STABLE const char* const* U_EXPORT2
775 uloc_getISOCountries(void);
776
777 /**
778 * Truncate the locale ID string to get the parent locale ID.
779 * Copies the part of the string before the last underscore.
780 * The parent locale ID will be an empty string if there is no
781 * underscore, or if there is only one underscore at localeID[0].
782 *
783 * @param localeID Input locale ID string.
784 * @param parent Output string buffer for the parent locale ID.
785 * @param parentCapacity Size of the output buffer.
786 * @param err A UErrorCode value.
787 * @return The length of the parent locale ID.
788 * @stable ICU 2.0
789 */
790 U_STABLE int32_t U_EXPORT2
791 uloc_getParent(const char* localeID,
792 char* parent,
793 int32_t parentCapacity,
794 UErrorCode* err);
795
796
797
798
799 /**
800 * Gets the full name for the specified locale.
801 * Note: This has the effect of 'canonicalizing' the string to
802 * a certain extent. Upper and lower case are set as needed,
803 * and if the components were in 'POSIX' format they are changed to
804 * ICU format. It does NOT map aliased names in any way.
805 * See the top of this header file.
806 * This API strips off the keyword part, so "de_DE\@collation=phonebook"
807 * will become "de_DE".
808 * This API supports preflighting.
809 *
810 * @param localeID the locale to get the full name with
811 * @param name fill in buffer for the name without keywords.
812 * @param nameCapacity capacity of the fill in buffer.
813 * @param err error information if retrieving the full name failed
814 * @return the actual buffer size needed for the full name. If it's greater
815 * than nameCapacity, the returned full name will be truncated.
816 * @stable ICU 2.8
817 */
818 U_STABLE int32_t U_EXPORT2
819 uloc_getBaseName(const char* localeID,
820 char* name,
821 int32_t nameCapacity,
822 UErrorCode* err);
823
824 /**
825 * Gets an enumeration of keywords for the specified locale. Enumeration
826 * must get disposed of by the client using uenum_close function.
827 *
828 * @param localeID the locale to get the variant code with
829 * @param status error information if retrieving the keywords failed
830 * @return enumeration of keywords or NULL if there are no keywords.
831 * @stable ICU 2.8
832 */
833 U_STABLE UEnumeration* U_EXPORT2
834 uloc_openKeywords(const char* localeID,
835 UErrorCode* status);
836
837 /**
838 * Get the value for a keyword. Locale name does not need to be normalized.
839 *
840 * @param localeID locale name containing the keyword ("de_DE@currency=EURO;coll ation=PHONEBOOK")
841 * @param keywordName name of the keyword for which we want the value. Case inse nsitive.
842 * @param buffer receiving buffer
843 * @param bufferCapacity capacity of receiving buffer
844 * @param status containing error code - buffer not big enough.
845 * @return the length of keyword value
846 * @stable ICU 2.8
847 */
848 U_STABLE int32_t U_EXPORT2
849 uloc_getKeywordValue(const char* localeID,
850 const char* keywordName,
851 char* buffer, int32_t bufferCapacity,
852 UErrorCode* status);
853
854
855 /**
856 * Set the value of the specified keyword.
857 * NOTE: Unlike almost every other ICU function which takes a
858 * buffer, this function will NOT truncate the output text. If a
859 * BUFFER_OVERFLOW_ERROR is received, it means that the original
860 * buffer is untouched. This is done to prevent incorrect or possibly
861 * even malformed locales from being generated and used.
862 *
863 * @param keywordName name of the keyword to be set. Case insensitive.
864 * @param keywordValue value of the keyword to be set. If 0-length or
865 * NULL, will result in the keyword being removed. No error is given if
866 * that keyword does not exist.
867 * @param buffer input buffer containing locale to be modified.
868 * @param bufferCapacity capacity of receiving buffer
869 * @param status containing error code - buffer not big enough.
870 * @return the length needed for the buffer
871 * @see uloc_getKeywordValue
872 * @stable ICU 3.2
873 */
874 U_STABLE int32_t U_EXPORT2
875 uloc_setKeywordValue(const char* keywordName,
876 const char* keywordValue,
877 char* buffer, int32_t bufferCapacity,
878 UErrorCode* status);
879
880 /**
881 * enums for the return value for the character and line orientation
882 * functions.
883 * @stable ICU 4.0
884 */
885 typedef enum {
886 ULOC_LAYOUT_LTR = 0, /* left-to-right. */
887 ULOC_LAYOUT_RTL = 1, /* right-to-left. */
888 ULOC_LAYOUT_TTB = 2, /* top-to-bottom. */
889 ULOC_LAYOUT_BTT = 3, /* bottom-to-top. */
890 ULOC_LAYOUT_UNKNOWN
891 } ULayoutType;
892
893 /**
894 * Get the layout character orientation for the specified locale.
895 *
896 * @param localeId locale name
897 * @param status Error status
898 * @return an enum indicating the layout orientation for characters.
899 * @stable ICU 4.0
900 */
901 U_STABLE ULayoutType U_EXPORT2
902 uloc_getCharacterOrientation(const char* localeId,
903 UErrorCode *status);
904
905 /**
906 * Get the layout line orientation for the specified locale.
907 *
908 * @param localeId locale name
909 * @param status Error status
910 * @return an enum indicating the layout orientation for lines.
911 * @stable ICU 4.0
912 */
913 U_STABLE ULayoutType U_EXPORT2
914 uloc_getLineOrientation(const char* localeId,
915 UErrorCode *status);
916
917 /**
918 * enums for the 'outResult' parameter return value
919 * @see uloc_acceptLanguageFromHTTP
920 * @see uloc_acceptLanguage
921 * @stable ICU 3.2
922 */
923 typedef enum {
924 ULOC_ACCEPT_FAILED = 0, /* No exact match was found. */
925 ULOC_ACCEPT_VALID = 1, /* An exact match was found. */
926 ULOC_ACCEPT_FALLBACK = 2 /* A fallback was found, for example,
927 Accept list contained 'ja_JP'
928 which matched available locale 'ja'. */
929 } UAcceptResult;
930
931
932 /**
933 * Based on a HTTP header from a web browser and a list of available locales,
934 * determine an acceptable locale for the user.
935 * @param result - buffer to accept the result locale
936 * @param resultAvailable the size of the result buffer.
937 * @param outResult - An out parameter that contains the fallback status
938 * @param httpAcceptLanguage - "Accept-Language:" header as per HTTP.
939 * @param availableLocales - list of available locales to match
940 * @param status Error status, may be BUFFER_OVERFLOW_ERROR
941 * @return length needed for the locale.
942 * @stable ICU 3.2
943 */
944 U_STABLE int32_t U_EXPORT2
945 uloc_acceptLanguageFromHTTP(char *result, int32_t resultAvailable,
946 UAcceptResult *outResult,
947 const char *httpAcceptLanguage,
948 UEnumeration* availableLocales,
949 UErrorCode *status);
950
951 /**
952 * Based on a list of available locales,
953 * determine an acceptable locale for the user.
954 * @param result - buffer to accept the result locale
955 * @param resultAvailable the size of the result buffer.
956 * @param outResult - An out parameter that contains the fallback status
957 * @param acceptList - list of acceptable languages
958 * @param acceptListCount - count of acceptList items
959 * @param availableLocales - list of available locales to match
960 * @param status Error status, may be BUFFER_OVERFLOW_ERROR
961 * @return length needed for the locale.
962 * @stable ICU 3.2
963 */
964 U_STABLE int32_t U_EXPORT2
965 uloc_acceptLanguage(char *result, int32_t resultAvailable,
966 UAcceptResult *outResult, const char **acceptList,
967 int32_t acceptListCount,
968 UEnumeration* availableLocales,
969 UErrorCode *status);
970
971
972 /**
973 * Gets the ICU locale ID for the specified Win32 LCID value.
974 *
975 * @param hostID the Win32 LCID to translate
976 * @param locale the output buffer for the ICU locale ID, which will be NUL-term inated
977 * if there is room.
978 * @param localeCapacity the size of the output buffer
979 * @param status an error is returned if the LCID is unrecognized or the output buffer
980 * is too small
981 * @return actual the actual size of the locale ID, not including NUL-terminatio n
982 * @stable ICU 3.8
983 */
984 U_STABLE int32_t U_EXPORT2
985 uloc_getLocaleForLCID(uint32_t hostID, char *locale, int32_t localeCapacity,
986 UErrorCode *status);
987
988
989 /**
990 * Add the likely subtags for a provided locale ID, per the algorithm described
991 * in the following CLDR technical report:
992 *
993 * http://www.unicode.org/reports/tr35/#Likely_Subtags
994 *
995 * If localeID is already in the maximal form, or there is no data available
996 * for maximization, it will be copied to the output buffer. For example,
997 * "und-Zzzz" cannot be maximized, since there is no reasonable maximization.
998 *
999 * Examples:
1000 *
1001 * "en" maximizes to "en_Latn_US"
1002 *
1003 * "de" maximizes to "de_Latn_US"
1004 *
1005 * "sr" maximizes to "sr_Cyrl_RS"
1006 *
1007 * "sh" maximizes to "sr_Latn_RS" (Note this will not reverse.)
1008 *
1009 * "zh_Hani" maximizes to "zh_Hans_CN" (Note this will not reverse.)
1010 *
1011 * @param localeID The locale to maximize
1012 * @param maximizedLocaleID The maximized locale
1013 * @param maximizedLocaleIDCapacity The capacity of the maximizedLocaleID buffer
1014 * @param err Error information if maximizing the locale failed. If the length
1015 * of the localeID and the null-terminator is greater than the maximum allowed s ize,
1016 * or the localeId is not well-formed, the error code is U_ILLEGAL_ARGUMENT_ERRO R.
1017 * @return The actual buffer size needed for the maximized locale. If it's
1018 * greater than maximizedLocaleIDCapacity, the returned ID will be truncated.
1019 * On error, the return value is -1.
1020 * @stable ICU 4.0
1021 */
1022 U_STABLE int32_t U_EXPORT2
1023 uloc_addLikelySubtags(const char* localeID,
1024 char* maximizedLocaleID,
1025 int32_t maximizedLocaleIDCapacity,
1026 UErrorCode* err);
1027
1028
1029 /**
1030 * Minimize the subtags for a provided locale ID, per the algorithm described
1031 * in the following CLDR technical report:
1032 *
1033 * http://www.unicode.org/reports/tr35/#Likely_Subtags
1034 *
1035 * If localeID is already in the minimal form, or there is no data available
1036 * for minimization, it will be copied to the output buffer. Since the
1037 * minimization algorithm relies on proper maximization, see the comments
1038 * for uloc_addLikelySubtags for reasons why there might not be any data.
1039 *
1040 * Examples:
1041 *
1042 * "en_Latn_US" minimizes to "en"
1043 *
1044 * "de_Latn_US" minimizes to "de"
1045 *
1046 * "sr_Cyrl_RS" minimizes to "sr"
1047 *
1048 * "zh_Hant_TW" minimizes to "zh_TW" (The region is preferred to the
1049 * script, and minimizing to "zh" would imply "zh_Hans_CN".)
1050 *
1051 * @param localeID The locale to minimize
1052 * @param minimizedLocaleID The minimized locale
1053 * @param minimizedLocaleIDCapacity The capacity of the minimizedLocaleID buffer
1054 * @param err Error information if minimizing the locale failed. If the length
1055 * of the localeID and the null-terminator is greater than the maximum allowed s ize,
1056 * or the localeId is not well-formed, the error code is U_ILLEGAL_ARGUMENT_ERRO R.
1057 * @return The actual buffer size needed for the minimized locale. If it's
1058 * greater than minimizedLocaleIDCapacity, the returned ID will be truncated.
1059 * On error, the return value is -1.
1060 * @stable ICU 4.0
1061 */
1062 U_STABLE int32_t U_EXPORT2
1063 uloc_minimizeSubtags(const char* localeID,
1064 char* minimizedLocaleID,
1065 int32_t minimizedLocaleIDCapacity,
1066 UErrorCode* err);
1067
1068 /**
1069 * Returns a locale ID for the specified BCP47 language tag string.
1070 * If the specified language tag contains any ill-formed subtags,
1071 * the first such subtag and all following subtags are ignored.
1072 * <p>
1073 * This implements the 'Language-Tag' production of BCP47, and so
1074 * supports grandfathered (regular and irregular) as well as private
1075 * use language tags. Private use tags are represented as 'x-whatever',
1076 * and grandfathered tags are converted to their canonical replacements
1077 * where they exist. Note that a few grandfathered tags have no modern
1078 * replacement, these will be converted using the fallback described in
1079 * the first paragraph, so some information might be lost.
1080 * @param langtag the input BCP47 language tag.
1081 * @param localeID the output buffer receiving a locale ID for the
1082 * specified BCP47 language tag.
1083 * @param localeIDCapacity the size of the locale ID output buffer.
1084 * @param parsedLength if not NULL, succsessfully parsed length
1085 * for the input language tag is set.
1086 * @param err error information if receiving the locald ID
1087 * failed.
1088 * @return the length of the locale ID.
1089 * @draft ICU 4.2
1090 */
1091 U_DRAFT int32_t U_EXPORT2
1092 uloc_forLanguageTag(const char* langtag,
1093 char* localeID,
1094 int32_t localeIDCapacity,
1095 int32_t* parsedLength,
1096 UErrorCode* err);
1097
1098 /**
1099 * Returns a well-formed language tag for this locale ID.
1100 * <p>
1101 * <b>Note</b>: When <code>strict</code> is FALSE, any locale
1102 * fields which do not satisfy the BCP47 syntax requirement will
1103 * be omitted from the result. When <code>strict</code> is
1104 * TRUE, this function sets U_ILLEGAL_ARGUMENT_ERROR to the
1105 * <code>err</code> if any locale fields do not satisfy the
1106 * BCP47 syntax requirement.
1107 * @param localeID the input lcoale ID
1108 * @param langtag the output buffer receiving BCP47 language
1109 * tag for the locale ID.
1110 * @param langtagCapacity the size of the BCP47 language tag
1111 * output buffer.
1112 * @param strict boolean value indicating if the function returns
1113 * an error for an ill-formed input locale ID.
1114 * @param err error information if receiving the language
1115 * tag failed.
1116 * @return The length of the BCP47 language tag.
1117 * @draft ICU 4.2
1118 */
1119 U_DRAFT int32_t U_EXPORT2
1120 uloc_toLanguageTag(const char* localeID,
1121 char* langtag,
1122 int32_t langtagCapacity,
1123 UBool strict,
1124 UErrorCode* err);
1125
1126 #endif /*_ULOC*/
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