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1/*
2*******************************************************************************
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3* Copyright (C) 2010-2012, International Business Machines Corporation and
4* others. All Rights Reserved.
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5*******************************************************************************
6*/
7
8#include "unicode/utypes.h"
9
10#if !UCONFIG_NO_FORMATTING
11
12#include "unicode/locdspnm.h"
729e4ab9 13#include "unicode/msgfmt.h"
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14#include "unicode/ures.h"
15#include "unicode/brkiter.h"
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16
17#include "cmemory.h"
18#include "cstring.h"
19#include "ulocimp.h"
20#include "ureslocs.h"
51004dcb 21#include "uresimp.h"
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22
23#include <stdarg.h>
24
25/**
26 * Concatenate a number of null-terminated strings to buffer, leaving a
27 * null-terminated string. The last argument should be the null pointer.
28 * Return the length of the string in the buffer, not counting the trailing
29 * null. Return -1 if there is an error (buffer is null, or buflen < 1).
30 */
31static int32_t ncat(char *buffer, uint32_t buflen, ...) {
32 va_list args;
33 char *str;
34 char *p = buffer;
35 const char* e = buffer + buflen - 1;
36
37 if (buffer == NULL || buflen < 1) {
38 return -1;
39 }
40
41 va_start(args, buflen);
42 while ((str = va_arg(args, char *))) {
43 char c;
44 while (p != e && (c = *str++)) {
45 *p++ = c;
46 }
47 }
48 *p = 0;
49 va_end(args);
50
51 return p - buffer;
52}
53
54U_NAMESPACE_BEGIN
55
56////////////////////////////////////////////////////////////////////////////////////////////////////
57
58// Access resource data for locale components.
59// Wrap code in uloc.c for now.
60class ICUDataTable {
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61 const char* path;
62 Locale locale;
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63
64public:
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65 ICUDataTable(const char* path, const Locale& locale);
66 ~ICUDataTable();
729e4ab9 67
51004dcb 68 const Locale& getLocale();
729e4ab9 69
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70 UnicodeString& get(const char* tableKey, const char* itemKey,
71 UnicodeString& result) const;
72 UnicodeString& get(const char* tableKey, const char* subTableKey, const char* itemKey,
73 UnicodeString& result) const;
729e4ab9 74
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75 UnicodeString& getNoFallback(const char* tableKey, const char* itemKey,
76 UnicodeString &result) const;
77 UnicodeString& getNoFallback(const char* tableKey, const char* subTableKey, const char* itemKey,
78 UnicodeString &result) const;
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79};
80
81inline UnicodeString &
82ICUDataTable::get(const char* tableKey, const char* itemKey, UnicodeString& result) const {
51004dcb 83 return get(tableKey, NULL, itemKey, result);
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84}
85
86inline UnicodeString &
87ICUDataTable::getNoFallback(const char* tableKey, const char* itemKey, UnicodeString& result) const {
51004dcb 88 return getNoFallback(tableKey, NULL, itemKey, result);
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89}
90
91ICUDataTable::ICUDataTable(const char* path, const Locale& locale)
51004dcb 92 : path(NULL), locale(Locale::getRoot())
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93{
94 if (path) {
95 int32_t len = uprv_strlen(path);
96 this->path = (const char*) uprv_malloc(len + 1);
97 if (this->path) {
98 uprv_strcpy((char *)this->path, path);
99 this->locale = locale;
100 }
101 }
102}
103
104ICUDataTable::~ICUDataTable() {
105 if (path) {
106 uprv_free((void*) path);
107 path = NULL;
108 }
109}
110
111const Locale&
112ICUDataTable::getLocale() {
113 return locale;
114}
115
116UnicodeString &
117ICUDataTable::get(const char* tableKey, const char* subTableKey, const char* itemKey,
118 UnicodeString &result) const {
119 UErrorCode status = U_ZERO_ERROR;
120 int32_t len = 0;
121
122 const UChar *s = uloc_getTableStringWithFallback(path, locale.getName(),
123 tableKey, subTableKey, itemKey,
124 &len, &status);
4388f060 125 if (U_SUCCESS(status) && len > 0) {
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126 return result.setTo(s, len);
127 }
128 return result.setTo(UnicodeString(itemKey, -1, US_INV));
129}
130
131UnicodeString &
132ICUDataTable::getNoFallback(const char* tableKey, const char* subTableKey, const char* itemKey,
133 UnicodeString& result) const {
134 UErrorCode status = U_ZERO_ERROR;
135 int32_t len = 0;
136
137 const UChar *s = uloc_getTableStringWithFallback(path, locale.getName(),
138 tableKey, subTableKey, itemKey,
139 &len, &status);
140 if (U_SUCCESS(status)) {
141 return result.setTo(s, len);
142 }
143
144 result.setToBogus();
145 return result;
146}
147
148////////////////////////////////////////////////////////////////////////////////////////////////////
149
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150LocaleDisplayNames::~LocaleDisplayNames() {}
151
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152////////////////////////////////////////////////////////////////////////////////////////////////////
153
154#if 0 // currently unused
155
156class DefaultLocaleDisplayNames : public LocaleDisplayNames {
157 UDialectHandling dialectHandling;
158
159public:
160 // constructor
161 DefaultLocaleDisplayNames(UDialectHandling dialectHandling);
162
163 virtual ~DefaultLocaleDisplayNames();
164
165 virtual const Locale& getLocale() const;
166 virtual UDialectHandling getDialectHandling() const;
51004dcb 167
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168 virtual UnicodeString& localeDisplayName(const Locale& locale,
169 UnicodeString& result) const;
170 virtual UnicodeString& localeDisplayName(const char* localeId,
171 UnicodeString& result) const;
172 virtual UnicodeString& languageDisplayName(const char* lang,
173 UnicodeString& result) const;
174 virtual UnicodeString& scriptDisplayName(const char* script,
175 UnicodeString& result) const;
176 virtual UnicodeString& scriptDisplayName(UScriptCode scriptCode,
177 UnicodeString& result) const;
178 virtual UnicodeString& regionDisplayName(const char* region,
179 UnicodeString& result) const;
180 virtual UnicodeString& variantDisplayName(const char* variant,
181 UnicodeString& result) const;
182 virtual UnicodeString& keyDisplayName(const char* key,
183 UnicodeString& result) const;
184 virtual UnicodeString& keyValueDisplayName(const char* key,
185 const char* value,
186 UnicodeString& result) const;
187};
188
189DefaultLocaleDisplayNames::DefaultLocaleDisplayNames(UDialectHandling dialectHandling)
190 : dialectHandling(dialectHandling) {
191}
192
193DefaultLocaleDisplayNames::~DefaultLocaleDisplayNames() {
194}
195
196const Locale&
197DefaultLocaleDisplayNames::getLocale() const {
198 return Locale::getRoot();
199}
200
201UDialectHandling
202DefaultLocaleDisplayNames::getDialectHandling() const {
203 return dialectHandling;
204}
205
206UnicodeString&
207DefaultLocaleDisplayNames::localeDisplayName(const Locale& locale,
208 UnicodeString& result) const {
209 return result = UnicodeString(locale.getName(), -1, US_INV);
210}
211
212UnicodeString&
213DefaultLocaleDisplayNames::localeDisplayName(const char* localeId,
214 UnicodeString& result) const {
215 return result = UnicodeString(localeId, -1, US_INV);
216}
217
218UnicodeString&
219DefaultLocaleDisplayNames::languageDisplayName(const char* lang,
220 UnicodeString& result) const {
221 return result = UnicodeString(lang, -1, US_INV);
222}
223
224UnicodeString&
225DefaultLocaleDisplayNames::scriptDisplayName(const char* script,
226 UnicodeString& result) const {
227 return result = UnicodeString(script, -1, US_INV);
228}
229
230UnicodeString&
231DefaultLocaleDisplayNames::scriptDisplayName(UScriptCode scriptCode,
232 UnicodeString& result) const {
233 const char* name = uscript_getName(scriptCode);
234 if (name) {
235 return result = UnicodeString(name, -1, US_INV);
236 }
237 return result.remove();
238}
239
240UnicodeString&
241DefaultLocaleDisplayNames::regionDisplayName(const char* region,
242 UnicodeString& result) const {
243 return result = UnicodeString(region, -1, US_INV);
244}
245
246UnicodeString&
247DefaultLocaleDisplayNames::variantDisplayName(const char* variant,
248 UnicodeString& result) const {
249 return result = UnicodeString(variant, -1, US_INV);
250}
251
252UnicodeString&
253DefaultLocaleDisplayNames::keyDisplayName(const char* key,
254 UnicodeString& result) const {
255 return result = UnicodeString(key, -1, US_INV);
256}
257
258UnicodeString&
259DefaultLocaleDisplayNames::keyValueDisplayName(const char* /* key */,
260 const char* value,
261 UnicodeString& result) const {
262 return result = UnicodeString(value, -1, US_INV);
263}
264
265#endif // currently unused class DefaultLocaleDisplayNames
266
267////////////////////////////////////////////////////////////////////////////////////////////////////
268
269class LocaleDisplayNamesImpl : public LocaleDisplayNames {
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270 Locale locale;
271 UDialectHandling dialectHandling;
272 ICUDataTable langData;
273 ICUDataTable regionData;
274 UnicodeString sep;
275 MessageFormat *format;
276 MessageFormat *keyTypeFormat;
277 UDisplayContext capitalizationContext;
278
279 // Constants for capitalization context usage types.
280 enum CapContextUsage {
281 kCapContextUsageLanguage,
282 kCapContextUsageScript,
283 kCapContextUsageTerritory,
284 kCapContextUsageVariant,
285 kCapContextUsageKey,
286 kCapContextUsageType,
287 kCapContextUsageCount
288 };
289 // Capitalization transforms. For each usage type, the first array element indicates
290 // whether to titlecase for uiListOrMenu context, the second indicates whether to
291 // titlecase for stand-alone context.
292 UBool fCapitalization[kCapContextUsageCount][2];
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293
294public:
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295 // constructor
296 LocaleDisplayNamesImpl(const Locale& locale, UDialectHandling dialectHandling);
297 LocaleDisplayNamesImpl(const Locale& locale, UDisplayContext *contexts, int32_t length);
298 virtual ~LocaleDisplayNamesImpl();
299
300 virtual const Locale& getLocale() const;
301 virtual UDialectHandling getDialectHandling() const;
302 virtual UDisplayContext getContext(UDisplayContextType type) const;
303
304 virtual UnicodeString& localeDisplayName(const Locale& locale,
305 UnicodeString& result) const;
306 virtual UnicodeString& localeDisplayName(const char* localeId,
307 UnicodeString& result) const;
308 virtual UnicodeString& languageDisplayName(const char* lang,
309 UnicodeString& result) const;
310 virtual UnicodeString& scriptDisplayName(const char* script,
311 UnicodeString& result) const;
312 virtual UnicodeString& scriptDisplayName(UScriptCode scriptCode,
313 UnicodeString& result) const;
314 virtual UnicodeString& regionDisplayName(const char* region,
315 UnicodeString& result) const;
316 virtual UnicodeString& variantDisplayName(const char* variant,
317 UnicodeString& result) const;
318 virtual UnicodeString& keyDisplayName(const char* key,
319 UnicodeString& result) const;
320 virtual UnicodeString& keyValueDisplayName(const char* key,
321 const char* value,
322 UnicodeString& result) const;
729e4ab9 323private:
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324 UnicodeString& localeIdName(const char* localeId,
325 UnicodeString& result) const;
326 UnicodeString& appendWithSep(UnicodeString& buffer, const UnicodeString& src) const;
327 UnicodeString& adjustForUsageAndContext(CapContextUsage usage, UnicodeString& result) const;
328 void initialize(void);
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329};
330
331LocaleDisplayNamesImpl::LocaleDisplayNamesImpl(const Locale& locale,
332 UDialectHandling dialectHandling)
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333 : dialectHandling(dialectHandling)
334 , langData(U_ICUDATA_LANG, locale)
335 , regionData(U_ICUDATA_REGION, locale)
336 , format(NULL)
337 , keyTypeFormat(NULL)
338 , capitalizationContext(UDISPCTX_CAPITALIZATION_NONE)
729e4ab9 339{
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340 initialize();
341}
729e4ab9 342
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343LocaleDisplayNamesImpl::LocaleDisplayNamesImpl(const Locale& locale,
344 UDisplayContext *contexts, int32_t length)
345 : dialectHandling(ULDN_STANDARD_NAMES)
346 , langData(U_ICUDATA_LANG, locale)
347 , regionData(U_ICUDATA_REGION, locale)
348 , format(NULL)
349 , keyTypeFormat(NULL)
350 , capitalizationContext(UDISPCTX_CAPITALIZATION_NONE)
351{
352 while (length-- > 0) {
353 UDisplayContext value = *contexts++;
354 UDisplayContextType selector = (UDisplayContextType)((uint32_t)value >> 8);
355 switch (selector) {
356 case UDISPCTX_TYPE_DIALECT_HANDLING:
357 dialectHandling = (UDialectHandling)value;
358 break;
359 case UDISPCTX_TYPE_CAPITALIZATION:
360 capitalizationContext = value;
361 break;
362 default:
363 break;
364 }
365 }
366 initialize();
367}
729e4ab9 368
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369void
370LocaleDisplayNamesImpl::initialize(void) {
371 LocaleDisplayNamesImpl *nonConstThis = (LocaleDisplayNamesImpl *)this;
372 nonConstThis->locale = langData.getLocale() == Locale::getRoot()
373 ? regionData.getLocale()
374 : langData.getLocale();
4388f060 375
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376 langData.getNoFallback("localeDisplayPattern", "separator", sep);
377 if (sep.isBogus()) {
378 sep = UnicodeString(", ", -1, US_INV);
379 }
380
381 UnicodeString pattern;
382 langData.getNoFallback("localeDisplayPattern", "pattern", pattern);
383 if (pattern.isBogus()) {
384 pattern = UnicodeString("{0} ({1})", -1, US_INV);
385 }
386 UErrorCode status = U_ZERO_ERROR;
387 format = new MessageFormat(pattern, status);
388
389 UnicodeString ktPattern;
390 langData.get("localeDisplayPattern", "keyTypePattern", ktPattern);
391 if (ktPattern.isBogus()) {
392 ktPattern = UnicodeString("{0}={1}", -1, US_INV);
393 }
394 keyTypeFormat = new MessageFormat(ktPattern, status);
395
396 uprv_memset(fCapitalization, 0, sizeof(fCapitalization));
397#if !UCONFIG_NO_BREAK_ITERATION
398 // The following is basically copied from DateFormatSymbols::initializeData
399 typedef struct {
400 const char * usageName;
401 LocaleDisplayNamesImpl::CapContextUsage usageEnum;
402 } ContextUsageNameToEnum;
403 const ContextUsageNameToEnum contextUsageTypeMap[] = {
404 // Entries must be sorted by usageTypeName; entry with NULL name terminates list.
405 { "key", kCapContextUsageKey },
406 { "languages", kCapContextUsageLanguage },
407 { "script", kCapContextUsageScript },
408 { "territory", kCapContextUsageTerritory },
409 { "type", kCapContextUsageType },
410 { "variant", kCapContextUsageVariant },
411 { NULL, (CapContextUsage)0 },
412 };
413 int32_t len = 0;
414 UResourceBundle *localeBundle = ures_open(NULL, locale.getName(), &status);
415 if (U_SUCCESS(status)) {
416 UResourceBundle *contextTransforms = ures_getByKeyWithFallback(localeBundle, "contextTransforms", NULL, &status);
417 if (U_SUCCESS(status)) {
418 UResourceBundle *contextTransformUsage;
419 while ( (contextTransformUsage = ures_getNextResource(contextTransforms, NULL, &status)) != NULL ) {
420 const int32_t * intVector = ures_getIntVector(contextTransformUsage, &len, &status);
421 if (U_SUCCESS(status) && intVector != NULL && len >= 2) {
422 const char* usageKey = ures_getKey(contextTransformUsage);
423 if (usageKey != NULL) {
424 const ContextUsageNameToEnum * typeMapPtr = contextUsageTypeMap;
425 int32_t compResult = 0;
426 // linear search; list is short and we cannot be sure that bsearch is available
427 while ( typeMapPtr->usageName != NULL && (compResult = uprv_strcmp(usageKey, typeMapPtr->usageName)) > 0 ) {
428 ++typeMapPtr;
429 }
430 if (typeMapPtr->usageName != NULL && compResult == 0) {
431 fCapitalization[typeMapPtr->usageEnum][0] = intVector[0];
432 fCapitalization[typeMapPtr->usageEnum][1] = intVector[1];
433 }
434 }
435 }
436 status = U_ZERO_ERROR;
437 ures_close(contextTransformUsage);
438 }
439 ures_close(contextTransforms);
440 }
441 ures_close(localeBundle);
442 }
443#endif
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444}
445
446LocaleDisplayNamesImpl::~LocaleDisplayNamesImpl() {
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447 delete format;
448 delete keyTypeFormat;
449 }
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450
451const Locale&
452LocaleDisplayNamesImpl::getLocale() const {
51004dcb 453 return locale;
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454}
455
456UDialectHandling
457LocaleDisplayNamesImpl::getDialectHandling() const {
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458 return dialectHandling;
459}
460
461UDisplayContext
462LocaleDisplayNamesImpl::getContext(UDisplayContextType type) const {
463 switch (type) {
464 case UDISPCTX_TYPE_DIALECT_HANDLING:
465 return (UDisplayContext)dialectHandling;
466 case UDISPCTX_TYPE_CAPITALIZATION:
467 return capitalizationContext;
468 default:
469 break;
470 }
471 return (UDisplayContext)0;
472}
473
474UnicodeString&
475LocaleDisplayNamesImpl::adjustForUsageAndContext(CapContextUsage usage,
476 UnicodeString& result) const {
477#if !UCONFIG_NO_BREAK_ITERATION
478 // check to see whether we need to titlecase result
479 UBool titlecase = FALSE;
480 switch (capitalizationContext) {
481 case UDISPCTX_CAPITALIZATION_FOR_BEGINNING_OF_SENTENCE:
482 titlecase = TRUE;
483 break;
484 case UDISPCTX_CAPITALIZATION_FOR_UI_LIST_OR_MENU:
485 titlecase = fCapitalization[usage][0];
486 break;
487 case UDISPCTX_CAPITALIZATION_FOR_STANDALONE:
488 titlecase = fCapitalization[usage][1];
489 break;
490 default:
491 // titlecase = FALSE;
492 break;
493 }
494 if (titlecase) {
495 // TODO: Fix this titlecase hack when we figure out something better to do.
496 // We don't want to titlecase the whole text, only something like the first word,
497 // of the first segment long enough to have a complete cluster, whichever is
498 // shorter. We could have keep a word break iterator around, but I am not sure
499 // that will do the ight thing for the purposes here. For now we assume that in
500 // languages for which titlecasing makes a difference, we can stop at non-letter
501 // characters in 0x0000-0x00FF and only titlecase up to the first occurrence of
502 // any of those, or to a small number of chars, whichever comes first.
503 int32_t stopPos, stopPosLimit = 8, len = result.length();
504 if ( stopPosLimit > len ) {
505 stopPosLimit = len;
506 }
507 for ( stopPos = 0; stopPos < stopPosLimit; stopPos++ ) {
508 UChar32 ch = result.char32At(stopPos);
509 if ( (ch < 0x41) || (ch > 0x5A && ch < 0x61) || (ch > 0x7A && ch < 0xC0) ) {
510 break;
511 }
512 if (ch >= 0x10000) {
513 stopPos++;
514 }
515 }
516 if ( stopPos > 0 && stopPos < len ) {
517 UnicodeString firstWord(result, 0, stopPos);
518 firstWord.toTitle(NULL, locale, U_TITLECASE_NO_LOWERCASE | U_TITLECASE_NO_BREAK_ADJUSTMENT);
519 result.replaceBetween(0, stopPos, firstWord);
520 } else {
521 // no stopPos, titlecase the whole text
522 result.toTitle(NULL, locale, U_TITLECASE_NO_LOWERCASE | U_TITLECASE_NO_BREAK_ADJUSTMENT);
523 }
524 }
525#endif
526 return result;
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527}
528
529UnicodeString&
530LocaleDisplayNamesImpl::localeDisplayName(const Locale& locale,
531 UnicodeString& result) const {
532 UnicodeString resultName;
533
534 const char* lang = locale.getLanguage();
535 if (uprv_strlen(lang) == 0) {
536 lang = "root";
537 }
538 const char* script = locale.getScript();
539 const char* country = locale.getCountry();
540 const char* variant = locale.getVariant();
541
542 UBool hasScript = uprv_strlen(script) > 0;
543 UBool hasCountry = uprv_strlen(country) > 0;
544 UBool hasVariant = uprv_strlen(variant) > 0;
545
546 if (dialectHandling == ULDN_DIALECT_NAMES) {
547 char buffer[ULOC_FULLNAME_CAPACITY];
548 do { // loop construct is so we can break early out of search
549 if (hasScript && hasCountry) {
550 ncat(buffer, ULOC_FULLNAME_CAPACITY, lang, "_", script, "_", country, (char *)0);
551 localeIdName(buffer, resultName);
552 if (!resultName.isBogus()) {
553 hasScript = FALSE;
554 hasCountry = FALSE;
555 break;
556 }
557 }
558 if (hasScript) {
559 ncat(buffer, ULOC_FULLNAME_CAPACITY, lang, "_", script, (char *)0);
560 localeIdName(buffer, resultName);
561 if (!resultName.isBogus()) {
562 hasScript = FALSE;
563 break;
564 }
565 }
566 if (hasCountry) {
567 ncat(buffer, ULOC_FULLNAME_CAPACITY, lang, "_", country, (char*)0);
568 localeIdName(buffer, resultName);
569 if (!resultName.isBogus()) {
570 hasCountry = FALSE;
571 break;
572 }
573 }
574 } while (FALSE);
575 }
576 if (resultName.isBogus() || resultName.isEmpty()) {
577 localeIdName(lang, resultName);
578 }
579
580 UnicodeString resultRemainder;
581 UnicodeString temp;
582 StringEnumeration *e = NULL;
583 UErrorCode status = U_ZERO_ERROR;
584
585 if (hasScript) {
586 resultRemainder.append(scriptDisplayName(script, temp));
587 }
588 if (hasCountry) {
589 appendWithSep(resultRemainder, regionDisplayName(country, temp));
590 }
591 if (hasVariant) {
592 appendWithSep(resultRemainder, variantDisplayName(variant, temp));
593 }
594
595 e = locale.createKeywords(status);
596 if (e && U_SUCCESS(status)) {
597 UnicodeString temp2;
598 char value[ULOC_KEYWORD_AND_VALUES_CAPACITY]; // sigh, no ULOC_VALUE_CAPACITY
599 const char* key;
600 while ((key = e->next((int32_t *)0, status)) != NULL) {
601 locale.getKeywordValue(key, value, ULOC_KEYWORD_AND_VALUES_CAPACITY, status);
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602 keyDisplayName(key, temp);
603 keyValueDisplayName(key, value, temp2);
604 if (temp2 != UnicodeString(value, -1, US_INV)) {
605 appendWithSep(resultRemainder, temp2);
606 } else if (temp != UnicodeString(key, -1, US_INV)) {
607 UnicodeString temp3;
608 Formattable data[] = {
609 temp,
610 temp2
611 };
612 FieldPosition fpos;
613 status = U_ZERO_ERROR;
614 keyTypeFormat->format(data, 2, temp3, fpos, status);
615 appendWithSep(resultRemainder, temp3);
616 } else {
617 appendWithSep(resultRemainder, temp)
618 .append((UChar)0x3d /* = */)
619 .append(temp2);
620 }
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621 }
622 delete e;
623 }
624
625 if (!resultRemainder.isEmpty()) {
626 Formattable data[] = {
627 resultName,
628 resultRemainder
629 };
630 FieldPosition fpos;
631 status = U_ZERO_ERROR;
632 format->format(data, 2, result, fpos, status);
51004dcb 633 return adjustForUsageAndContext(kCapContextUsageLanguage, result);
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634 }
635
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636 result = resultName;
637 return adjustForUsageAndContext(kCapContextUsageLanguage, result);
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638}
639
640UnicodeString&
641LocaleDisplayNamesImpl::appendWithSep(UnicodeString& buffer, const UnicodeString& src) const {
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642 if (!buffer.isEmpty()) {
643 buffer.append(sep);
644 }
645 buffer.append(src);
646 return buffer;
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647}
648
649UnicodeString&
650LocaleDisplayNamesImpl::localeDisplayName(const char* localeId,
651 UnicodeString& result) const {
51004dcb 652 return localeDisplayName(Locale(localeId), result);
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653}
654
51004dcb 655// private
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656UnicodeString&
657LocaleDisplayNamesImpl::localeIdName(const char* localeId,
658 UnicodeString& result) const {
51004dcb 659 return langData.getNoFallback("Languages", localeId, result);
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660}
661
662UnicodeString&
663LocaleDisplayNamesImpl::languageDisplayName(const char* lang,
664 UnicodeString& result) const {
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665 if (uprv_strcmp("root", lang) == 0 || uprv_strchr(lang, '_') != NULL) {
666 return result = UnicodeString(lang, -1, US_INV);
667 }
668 langData.get("Languages", lang, result);
669 return adjustForUsageAndContext(kCapContextUsageLanguage, result);
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670}
671
672UnicodeString&
673LocaleDisplayNamesImpl::scriptDisplayName(const char* script,
674 UnicodeString& result) const {
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675 langData.get("Scripts", script, result);
676 return adjustForUsageAndContext(kCapContextUsageScript, result);
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677}
678
679UnicodeString&
680LocaleDisplayNamesImpl::scriptDisplayName(UScriptCode scriptCode,
681 UnicodeString& result) const {
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682 const char* name = uscript_getName(scriptCode);
683 langData.get("Scripts", name, result);
684 return adjustForUsageAndContext(kCapContextUsageScript, result);
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685}
686
687UnicodeString&
688LocaleDisplayNamesImpl::regionDisplayName(const char* region,
689 UnicodeString& result) const {
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690 regionData.get("Countries", region, result);
691 return adjustForUsageAndContext(kCapContextUsageTerritory, result);
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692}
693
694UnicodeString&
695LocaleDisplayNamesImpl::variantDisplayName(const char* variant,
696 UnicodeString& result) const {
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697 langData.get("Variants", variant, result);
698 return adjustForUsageAndContext(kCapContextUsageVariant, result);
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699}
700
701UnicodeString&
702LocaleDisplayNamesImpl::keyDisplayName(const char* key,
703 UnicodeString& result) const {
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704 langData.get("Keys", key, result);
705 return adjustForUsageAndContext(kCapContextUsageKey, result);
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706}
707
708UnicodeString&
709LocaleDisplayNamesImpl::keyValueDisplayName(const char* key,
710 const char* value,
711 UnicodeString& result) const {
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712 langData.get("Types", key, value, result);
713 return adjustForUsageAndContext(kCapContextUsageType, result);
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714}
715
716////////////////////////////////////////////////////////////////////////////////////////////////////
717
718LocaleDisplayNames*
719LocaleDisplayNames::createInstance(const Locale& locale,
720 UDialectHandling dialectHandling) {
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721 return new LocaleDisplayNamesImpl(locale, dialectHandling);
722}
723
724LocaleDisplayNames*
725LocaleDisplayNames::createInstance(const Locale& locale,
726 UDisplayContext *contexts, int32_t length) {
727 if (contexts == NULL) {
728 length = 0;
729 }
730 return new LocaleDisplayNamesImpl(locale, contexts, length);
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731}
732
733U_NAMESPACE_END
734
735////////////////////////////////////////////////////////////////////////////////////////////////////
736
737U_NAMESPACE_USE
738
51004dcb 739U_CAPI ULocaleDisplayNames * U_EXPORT2
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740uldn_open(const char * locale,
741 UDialectHandling dialectHandling,
742 UErrorCode *pErrorCode) {
743 if (U_FAILURE(*pErrorCode)) {
744 return 0;
745 }
746 if (locale == NULL) {
747 locale = uloc_getDefault();
748 }
749 return (ULocaleDisplayNames *)LocaleDisplayNames::createInstance(Locale(locale), dialectHandling);
750}
751
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752U_CAPI ULocaleDisplayNames * U_EXPORT2
753uldn_openForContext(const char * locale,
754 UDisplayContext *contexts, int32_t length,
755 UErrorCode *pErrorCode) {
756 if (U_FAILURE(*pErrorCode)) {
757 return 0;
758 }
759 if (locale == NULL) {
760 locale = uloc_getDefault();
761 }
762 return (ULocaleDisplayNames *)LocaleDisplayNames::createInstance(Locale(locale), contexts, length);
763}
764
765
766U_CAPI void U_EXPORT2
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767uldn_close(ULocaleDisplayNames *ldn) {
768 delete (LocaleDisplayNames *)ldn;
769}
770
51004dcb 771U_CAPI const char * U_EXPORT2
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772uldn_getLocale(const ULocaleDisplayNames *ldn) {
773 if (ldn) {
774 return ((const LocaleDisplayNames *)ldn)->getLocale().getName();
775 }
776 return NULL;
777}
778
51004dcb 779U_CAPI UDialectHandling U_EXPORT2
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780uldn_getDialectHandling(const ULocaleDisplayNames *ldn) {
781 if (ldn) {
782 return ((const LocaleDisplayNames *)ldn)->getDialectHandling();
783 }
784 return ULDN_STANDARD_NAMES;
785}
786
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787U_CAPI UDisplayContext U_EXPORT2
788uldn_getContext(const ULocaleDisplayNames *ldn,
789 UDisplayContextType type,
790 UErrorCode *pErrorCode) {
791 if (U_FAILURE(*pErrorCode)) {
792 return (UDisplayContext)0;
793 }
794 return ((const LocaleDisplayNames *)ldn)->getContext(type);
795}
796
797U_CAPI int32_t U_EXPORT2
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798uldn_localeDisplayName(const ULocaleDisplayNames *ldn,
799 const char *locale,
800 UChar *result,
801 int32_t maxResultSize,
802 UErrorCode *pErrorCode) {
803 if (U_FAILURE(*pErrorCode)) {
804 return 0;
805 }
806 if (ldn == NULL || locale == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
807 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
808 return 0;
809 }
810 UnicodeString temp(result, 0, maxResultSize);
811 ((const LocaleDisplayNames *)ldn)->localeDisplayName(locale, temp);
812 return temp.extract(result, maxResultSize, *pErrorCode);
813}
814
51004dcb 815U_CAPI int32_t U_EXPORT2
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816uldn_languageDisplayName(const ULocaleDisplayNames *ldn,
817 const char *lang,
818 UChar *result,
819 int32_t maxResultSize,
820 UErrorCode *pErrorCode) {
821 if (U_FAILURE(*pErrorCode)) {
822 return 0;
823 }
824 if (ldn == NULL || lang == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
825 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
826 return 0;
827 }
828 UnicodeString temp(result, 0, maxResultSize);
829 ((const LocaleDisplayNames *)ldn)->languageDisplayName(lang, temp);
830 return temp.extract(result, maxResultSize, *pErrorCode);
831}
832
51004dcb 833U_CAPI int32_t U_EXPORT2
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834uldn_scriptDisplayName(const ULocaleDisplayNames *ldn,
835 const char *script,
836 UChar *result,
837 int32_t maxResultSize,
838 UErrorCode *pErrorCode) {
839 if (U_FAILURE(*pErrorCode)) {
840 return 0;
841 }
842 if (ldn == NULL || script == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
843 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
844 return 0;
845 }
846 UnicodeString temp(result, 0, maxResultSize);
847 ((const LocaleDisplayNames *)ldn)->scriptDisplayName(script, temp);
848 return temp.extract(result, maxResultSize, *pErrorCode);
849}
850
51004dcb 851U_CAPI int32_t U_EXPORT2
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852uldn_scriptCodeDisplayName(const ULocaleDisplayNames *ldn,
853 UScriptCode scriptCode,
854 UChar *result,
855 int32_t maxResultSize,
856 UErrorCode *pErrorCode) {
857 return uldn_scriptDisplayName(ldn, uscript_getName(scriptCode), result, maxResultSize, pErrorCode);
858}
859
51004dcb 860U_CAPI int32_t U_EXPORT2
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861uldn_regionDisplayName(const ULocaleDisplayNames *ldn,
862 const char *region,
863 UChar *result,
864 int32_t maxResultSize,
865 UErrorCode *pErrorCode) {
866 if (U_FAILURE(*pErrorCode)) {
867 return 0;
868 }
869 if (ldn == NULL || region == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
870 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
871 return 0;
872 }
873 UnicodeString temp(result, 0, maxResultSize);
874 ((const LocaleDisplayNames *)ldn)->regionDisplayName(region, temp);
875 return temp.extract(result, maxResultSize, *pErrorCode);
876}
877
51004dcb 878U_CAPI int32_t U_EXPORT2
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879uldn_variantDisplayName(const ULocaleDisplayNames *ldn,
880 const char *variant,
881 UChar *result,
882 int32_t maxResultSize,
883 UErrorCode *pErrorCode) {
884 if (U_FAILURE(*pErrorCode)) {
885 return 0;
886 }
887 if (ldn == NULL || variant == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
888 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
889 return 0;
890 }
891 UnicodeString temp(result, 0, maxResultSize);
892 ((const LocaleDisplayNames *)ldn)->variantDisplayName(variant, temp);
893 return temp.extract(result, maxResultSize, *pErrorCode);
894}
895
51004dcb 896U_CAPI int32_t U_EXPORT2
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897uldn_keyDisplayName(const ULocaleDisplayNames *ldn,
898 const char *key,
899 UChar *result,
900 int32_t maxResultSize,
901 UErrorCode *pErrorCode) {
902 if (U_FAILURE(*pErrorCode)) {
903 return 0;
904 }
905 if (ldn == NULL || key == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
906 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
907 return 0;
908 }
909 UnicodeString temp(result, 0, maxResultSize);
910 ((const LocaleDisplayNames *)ldn)->keyDisplayName(key, temp);
911 return temp.extract(result, maxResultSize, *pErrorCode);
912}
913
51004dcb 914U_CAPI int32_t U_EXPORT2
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915uldn_keyValueDisplayName(const ULocaleDisplayNames *ldn,
916 const char *key,
917 const char *value,
918 UChar *result,
919 int32_t maxResultSize,
920 UErrorCode *pErrorCode) {
921 if (U_FAILURE(*pErrorCode)) {
922 return 0;
923 }
924 if (ldn == NULL || key == NULL || value == NULL || (result == NULL && maxResultSize > 0)
925 || maxResultSize < 0) {
926 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
927 return 0;
928 }
929 UnicodeString temp(result, 0, maxResultSize);
930 ((const LocaleDisplayNames *)ldn)->keyValueDisplayName(key, value, temp);
931 return temp.extract(result, maxResultSize, *pErrorCode);
932}
933
934#endif