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comparison: intl/icu/source/i18n/locdspnm.cpp

intl/icu/source/i18n/locdspnm.cpp

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1 /*
2 *******************************************************************************
3 * Copyright (C) 2010-2013, International Business Machines Corporation and
4 * others. All Rights Reserved.
5 *******************************************************************************
6 */
7
8 #include "unicode/utypes.h"
9
10 #if !UCONFIG_NO_FORMATTING
11
12 #include "unicode/locdspnm.h"
13 #include "unicode/msgfmt.h"
14 #include "unicode/ures.h"
15 #include "unicode/brkiter.h"
16
17 #include "cmemory.h"
18 #include "cstring.h"
19 #include "ulocimp.h"
20 #include "ureslocs.h"
21 #include "uresimp.h"
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 */
31 static 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
54 U_NAMESPACE_BEGIN
55
56 ////////////////////////////////////////////////////////////////////////////////////////////////////
57
58 // Access resource data for locale components.
59 // Wrap code in uloc.c for now.
60 class ICUDataTable {
61 const char* path;
62 Locale locale;
63
64 public:
65 ICUDataTable(const char* path, const Locale& locale);
66 ~ICUDataTable();
67
68 const Locale& getLocale();
69
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;
74
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;
79 };
80
81 inline UnicodeString &
82 ICUDataTable::get(const char* tableKey, const char* itemKey, UnicodeString& result) const {
83 return get(tableKey, NULL, itemKey, result);
84 }
85
86 inline UnicodeString &
87 ICUDataTable::getNoFallback(const char* tableKey, const char* itemKey, UnicodeString& result) const {
88 return getNoFallback(tableKey, NULL, itemKey, result);
89 }
90
91 ICUDataTable::ICUDataTable(const char* path, const Locale& locale)
92 : path(NULL), locale(Locale::getRoot())
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
104 ICUDataTable::~ICUDataTable() {
105 if (path) {
106 uprv_free((void*) path);
107 path = NULL;
108 }
109 }
110
111 const Locale&
112 ICUDataTable::getLocale() {
113 return locale;
114 }
115
116 UnicodeString &
117 ICUDataTable::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);
125 if (U_SUCCESS(status) && len > 0) {
126 return result.setTo(s, len);
127 }
128 return result.setTo(UnicodeString(itemKey, -1, US_INV));
129 }
130
131 UnicodeString &
132 ICUDataTable::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
150 LocaleDisplayNames::~LocaleDisplayNames() {}
151
152 ////////////////////////////////////////////////////////////////////////////////////////////////////
153
154 #if 0 // currently unused
155
156 class DefaultLocaleDisplayNames : public LocaleDisplayNames {
157 UDialectHandling dialectHandling;
158
159 public:
160 // constructor
161 DefaultLocaleDisplayNames(UDialectHandling dialectHandling);
162
163 virtual ~DefaultLocaleDisplayNames();
164
165 virtual const Locale& getLocale() const;
166 virtual UDialectHandling getDialectHandling() const;
167
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
189 DefaultLocaleDisplayNames::DefaultLocaleDisplayNames(UDialectHandling dialectHandling)
190 : dialectHandling(dialectHandling) {
191 }
192
193 DefaultLocaleDisplayNames::~DefaultLocaleDisplayNames() {
194 }
195
196 const Locale&
197 DefaultLocaleDisplayNames::getLocale() const {
198 return Locale::getRoot();
199 }
200
201 UDialectHandling
202 DefaultLocaleDisplayNames::getDialectHandling() const {
203 return dialectHandling;
204 }
205
206 UnicodeString&
207 DefaultLocaleDisplayNames::localeDisplayName(const Locale& locale,
208 UnicodeString& result) const {
209 return result = UnicodeString(locale.getName(), -1, US_INV);
210 }
211
212 UnicodeString&
213 DefaultLocaleDisplayNames::localeDisplayName(const char* localeId,
214 UnicodeString& result) const {
215 return result = UnicodeString(localeId, -1, US_INV);
216 }
217
218 UnicodeString&
219 DefaultLocaleDisplayNames::languageDisplayName(const char* lang,
220 UnicodeString& result) const {
221 return result = UnicodeString(lang, -1, US_INV);
222 }
223
224 UnicodeString&
225 DefaultLocaleDisplayNames::scriptDisplayName(const char* script,
226 UnicodeString& result) const {
227 return result = UnicodeString(script, -1, US_INV);
228 }
229
230 UnicodeString&
231 DefaultLocaleDisplayNames::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
240 UnicodeString&
241 DefaultLocaleDisplayNames::regionDisplayName(const char* region,
242 UnicodeString& result) const {
243 return result = UnicodeString(region, -1, US_INV);
244 }
245
246 UnicodeString&
247 DefaultLocaleDisplayNames::variantDisplayName(const char* variant,
248 UnicodeString& result) const {
249 return result = UnicodeString(variant, -1, US_INV);
250 }
251
252 UnicodeString&
253 DefaultLocaleDisplayNames::keyDisplayName(const char* key,
254 UnicodeString& result) const {
255 return result = UnicodeString(key, -1, US_INV);
256 }
257
258 UnicodeString&
259 DefaultLocaleDisplayNames::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
269 class LocaleDisplayNamesImpl : public LocaleDisplayNames {
270 Locale locale;
271 UDialectHandling dialectHandling;
272 ICUDataTable langData;
273 ICUDataTable regionData;
274 MessageFormat *separatorFormat;
275 MessageFormat *format;
276 MessageFormat *keyTypeFormat;
277 UDisplayContext capitalizationContext;
278 UnicodeString formatOpenParen;
279 UnicodeString formatReplaceOpenParen;
280 UnicodeString formatCloseParen;
281 UnicodeString formatReplaceCloseParen;
282
283 // Constants for capitalization context usage types.
284 enum CapContextUsage {
285 kCapContextUsageLanguage,
286 kCapContextUsageScript,
287 kCapContextUsageTerritory,
288 kCapContextUsageVariant,
289 kCapContextUsageKey,
290 kCapContextUsageType,
291 kCapContextUsageCount
292 };
293 // Capitalization transforms. For each usage type, the first array element indicates
294 // whether to titlecase for uiListOrMenu context, the second indicates whether to
295 // titlecase for stand-alone context.
296 UBool fCapitalization[kCapContextUsageCount][2];
297
298 public:
299 // constructor
300 LocaleDisplayNamesImpl(const Locale& locale, UDialectHandling dialectHandling);
301 LocaleDisplayNamesImpl(const Locale& locale, UDisplayContext *contexts, int32_t length);
302 virtual ~LocaleDisplayNamesImpl();
303
304 virtual const Locale& getLocale() const;
305 virtual UDialectHandling getDialectHandling() const;
306 virtual UDisplayContext getContext(UDisplayContextType type) const;
307
308 virtual UnicodeString& localeDisplayName(const Locale& locale,
309 UnicodeString& result) const;
310 virtual UnicodeString& localeDisplayName(const char* localeId,
311 UnicodeString& result) const;
312 virtual UnicodeString& languageDisplayName(const char* lang,
313 UnicodeString& result) const;
314 virtual UnicodeString& scriptDisplayName(const char* script,
315 UnicodeString& result) const;
316 virtual UnicodeString& scriptDisplayName(UScriptCode scriptCode,
317 UnicodeString& result) const;
318 virtual UnicodeString& regionDisplayName(const char* region,
319 UnicodeString& result) const;
320 virtual UnicodeString& variantDisplayName(const char* variant,
321 UnicodeString& result) const;
322 virtual UnicodeString& keyDisplayName(const char* key,
323 UnicodeString& result) const;
324 virtual UnicodeString& keyValueDisplayName(const char* key,
325 const char* value,
326 UnicodeString& result) const;
327 private:
328 UnicodeString& localeIdName(const char* localeId,
329 UnicodeString& result) const;
330 UnicodeString& appendWithSep(UnicodeString& buffer, const UnicodeString& src) const;
331 UnicodeString& adjustForUsageAndContext(CapContextUsage usage, UnicodeString& result) const;
332 void initialize(void);
333 };
334
335 LocaleDisplayNamesImpl::LocaleDisplayNamesImpl(const Locale& locale,
336 UDialectHandling dialectHandling)
337 : dialectHandling(dialectHandling)
338 , langData(U_ICUDATA_LANG, locale)
339 , regionData(U_ICUDATA_REGION, locale)
340 , separatorFormat(NULL)
341 , format(NULL)
342 , keyTypeFormat(NULL)
343 , capitalizationContext(UDISPCTX_CAPITALIZATION_NONE)
344 {
345 initialize();
346 }
347
348 LocaleDisplayNamesImpl::LocaleDisplayNamesImpl(const Locale& locale,
349 UDisplayContext *contexts, int32_t length)
350 : dialectHandling(ULDN_STANDARD_NAMES)
351 , langData(U_ICUDATA_LANG, locale)
352 , regionData(U_ICUDATA_REGION, locale)
353 , separatorFormat(NULL)
354 , format(NULL)
355 , keyTypeFormat(NULL)
356 , capitalizationContext(UDISPCTX_CAPITALIZATION_NONE)
357 {
358 while (length-- > 0) {
359 UDisplayContext value = *contexts++;
360 UDisplayContextType selector = (UDisplayContextType)((uint32_t)value >> 8);
361 switch (selector) {
362 case UDISPCTX_TYPE_DIALECT_HANDLING:
363 dialectHandling = (UDialectHandling)value;
364 break;
365 case UDISPCTX_TYPE_CAPITALIZATION:
366 capitalizationContext = value;
367 break;
368 default:
369 break;
370 }
371 }
372 initialize();
373 }
374
375 void
376 LocaleDisplayNamesImpl::initialize(void) {
377 LocaleDisplayNamesImpl *nonConstThis = (LocaleDisplayNamesImpl *)this;
378 nonConstThis->locale = langData.getLocale() == Locale::getRoot()
379 ? regionData.getLocale()
380 : langData.getLocale();
381
382 UnicodeString sep;
383 langData.getNoFallback("localeDisplayPattern", "separator", sep);
384 if (sep.isBogus()) {
385 sep = UnicodeString("{0}, {1}", -1, US_INV);
386 }
387 UErrorCode status = U_ZERO_ERROR;
388 separatorFormat = new MessageFormat(sep, status);
389
390 UnicodeString pattern;
391 langData.getNoFallback("localeDisplayPattern", "pattern", pattern);
392 if (pattern.isBogus()) {
393 pattern = UnicodeString("{0} ({1})", -1, US_INV);
394 }
395 format = new MessageFormat(pattern, status);
396 if (pattern.indexOf((UChar)0xFF08) >= 0) {
397 formatOpenParen.setTo((UChar)0xFF08); // fullwidth (
398 formatReplaceOpenParen.setTo((UChar)0xFF3B); // fullwidth [
399 formatCloseParen.setTo((UChar)0xFF09); // fullwidth )
400 formatReplaceCloseParen.setTo((UChar)0xFF3D); // fullwidth ]
401 } else {
402 formatOpenParen.setTo((UChar)0x0028); // (
403 formatReplaceOpenParen.setTo((UChar)0x005B); // [
404 formatCloseParen.setTo((UChar)0x0029); // )
405 formatReplaceCloseParen.setTo((UChar)0x005D); // ]
406 }
407
408 UnicodeString ktPattern;
409 langData.get("localeDisplayPattern", "keyTypePattern", ktPattern);
410 if (ktPattern.isBogus()) {
411 ktPattern = UnicodeString("{0}={1}", -1, US_INV);
412 }
413 keyTypeFormat = new MessageFormat(ktPattern, status);
414
415 uprv_memset(fCapitalization, 0, sizeof(fCapitalization));
416 #if !UCONFIG_NO_BREAK_ITERATION
417 // The following is basically copied from DateFormatSymbols::initializeData
418 typedef struct {
419 const char * usageName;
420 LocaleDisplayNamesImpl::CapContextUsage usageEnum;
421 } ContextUsageNameToEnum;
422 const ContextUsageNameToEnum contextUsageTypeMap[] = {
423 // Entries must be sorted by usageTypeName; entry with NULL name terminates list.
424 { "key", kCapContextUsageKey },
425 { "languages", kCapContextUsageLanguage },
426 { "script", kCapContextUsageScript },
427 { "territory", kCapContextUsageTerritory },
428 { "type", kCapContextUsageType },
429 { "variant", kCapContextUsageVariant },
430 { NULL, (CapContextUsage)0 },
431 };
432 int32_t len = 0;
433 UResourceBundle *localeBundle = ures_open(NULL, locale.getName(), &status);
434 if (U_SUCCESS(status)) {
435 UResourceBundle *contextTransforms = ures_getByKeyWithFallback(localeBundle, "contextTransforms", NULL, &status);
436 if (U_SUCCESS(status)) {
437 UResourceBundle *contextTransformUsage;
438 while ( (contextTransformUsage = ures_getNextResource(contextTransforms, NULL, &status)) != NULL ) {
439 const int32_t * intVector = ures_getIntVector(contextTransformUsage, &len, &status);
440 if (U_SUCCESS(status) && intVector != NULL && len >= 2) {
441 const char* usageKey = ures_getKey(contextTransformUsage);
442 if (usageKey != NULL) {
443 const ContextUsageNameToEnum * typeMapPtr = contextUsageTypeMap;
444 int32_t compResult = 0;
445 // linear search; list is short and we cannot be sure that bsearch is available
446 while ( typeMapPtr->usageName != NULL && (compResult = uprv_strcmp(usageKey, typeMapPtr->usageName)) > 0 ) {
447 ++typeMapPtr;
448 }
449 if (typeMapPtr->usageName != NULL && compResult == 0) {
450 fCapitalization[typeMapPtr->usageEnum][0] = intVector[0];
451 fCapitalization[typeMapPtr->usageEnum][1] = intVector[1];
452 }
453 }
454 }
455 status = U_ZERO_ERROR;
456 ures_close(contextTransformUsage);
457 }
458 ures_close(contextTransforms);
459 }
460 ures_close(localeBundle);
461 }
462 #endif
463 }
464
465 LocaleDisplayNamesImpl::~LocaleDisplayNamesImpl() {
466 delete separatorFormat;
467 delete format;
468 delete keyTypeFormat;
469 }
470
471 const Locale&
472 LocaleDisplayNamesImpl::getLocale() const {
473 return locale;
474 }
475
476 UDialectHandling
477 LocaleDisplayNamesImpl::getDialectHandling() const {
478 return dialectHandling;
479 }
480
481 UDisplayContext
482 LocaleDisplayNamesImpl::getContext(UDisplayContextType type) const {
483 switch (type) {
484 case UDISPCTX_TYPE_DIALECT_HANDLING:
485 return (UDisplayContext)dialectHandling;
486 case UDISPCTX_TYPE_CAPITALIZATION:
487 return capitalizationContext;
488 default:
489 break;
490 }
491 return (UDisplayContext)0;
492 }
493
494 UnicodeString&
495 LocaleDisplayNamesImpl::adjustForUsageAndContext(CapContextUsage usage,
496 UnicodeString& result) const {
497 #if !UCONFIG_NO_BREAK_ITERATION
498 // check to see whether we need to titlecase result
499 UBool titlecase = FALSE;
500 switch (capitalizationContext) {
501 case UDISPCTX_CAPITALIZATION_FOR_BEGINNING_OF_SENTENCE:
502 titlecase = TRUE;
503 break;
504 case UDISPCTX_CAPITALIZATION_FOR_UI_LIST_OR_MENU:
505 titlecase = fCapitalization[usage][0];
506 break;
507 case UDISPCTX_CAPITALIZATION_FOR_STANDALONE:
508 titlecase = fCapitalization[usage][1];
509 break;
510 default:
511 // titlecase = FALSE;
512 break;
513 }
514 if (titlecase) {
515 // TODO: Fix this titlecase hack when we figure out something better to do.
516 // We don't want to titlecase the whole text, only something like the first word,
517 // of the first segment long enough to have a complete cluster, whichever is
518 // shorter. We could have keep a word break iterator around, but I am not sure
519 // that will do the ight thing for the purposes here. For now we assume that in
520 // languages for which titlecasing makes a difference, we can stop at non-letter
521 // characters in 0x0000-0x00FF and only titlecase up to the first occurrence of
522 // any of those, or to a small number of chars, whichever comes first.
523 int32_t stopPos, stopPosLimit = 8, len = result.length();
524 if ( stopPosLimit > len ) {
525 stopPosLimit = len;
526 }
527 for ( stopPos = 0; stopPos < stopPosLimit; stopPos++ ) {
528 UChar32 ch = result.char32At(stopPos);
529 if ( (ch < 0x41) || (ch > 0x5A && ch < 0x61) || (ch > 0x7A && ch < 0xC0) ) {
530 break;
531 }
532 if (ch >= 0x10000) {
533 stopPos++;
534 }
535 }
536 if ( stopPos > 0 && stopPos < len ) {
537 UnicodeString firstWord(result, 0, stopPos);
538 firstWord.toTitle(NULL, locale, U_TITLECASE_NO_LOWERCASE | U_TITLECASE_NO_BREAK_ADJUSTMENT);
539 result.replaceBetween(0, stopPos, firstWord);
540 } else {
541 // no stopPos, titlecase the whole text
542 result.toTitle(NULL, locale, U_TITLECASE_NO_LOWERCASE | U_TITLECASE_NO_BREAK_ADJUSTMENT);
543 }
544 }
545 #endif
546 return result;
547 }
548
549 UnicodeString&
550 LocaleDisplayNamesImpl::localeDisplayName(const Locale& locale,
551 UnicodeString& result) const {
552 UnicodeString resultName;
553
554 const char* lang = locale.getLanguage();
555 if (uprv_strlen(lang) == 0) {
556 lang = "root";
557 }
558 const char* script = locale.getScript();
559 const char* country = locale.getCountry();
560 const char* variant = locale.getVariant();
561
562 UBool hasScript = uprv_strlen(script) > 0;
563 UBool hasCountry = uprv_strlen(country) > 0;
564 UBool hasVariant = uprv_strlen(variant) > 0;
565
566 if (dialectHandling == ULDN_DIALECT_NAMES) {
567 char buffer[ULOC_FULLNAME_CAPACITY];
568 do { // loop construct is so we can break early out of search
569 if (hasScript && hasCountry) {
570 ncat(buffer, ULOC_FULLNAME_CAPACITY, lang, "_", script, "_", country, (char *)0);
571 localeIdName(buffer, resultName);
572 if (!resultName.isBogus()) {
573 hasScript = FALSE;
574 hasCountry = FALSE;
575 break;
576 }
577 }
578 if (hasScript) {
579 ncat(buffer, ULOC_FULLNAME_CAPACITY, lang, "_", script, (char *)0);
580 localeIdName(buffer, resultName);
581 if (!resultName.isBogus()) {
582 hasScript = FALSE;
583 break;
584 }
585 }
586 if (hasCountry) {
587 ncat(buffer, ULOC_FULLNAME_CAPACITY, lang, "_", country, (char*)0);
588 localeIdName(buffer, resultName);
589 if (!resultName.isBogus()) {
590 hasCountry = FALSE;
591 break;
592 }
593 }
594 } while (FALSE);
595 }
596 if (resultName.isBogus() || resultName.isEmpty()) {
597 localeIdName(lang, resultName);
598 }
599
600 UnicodeString resultRemainder;
601 UnicodeString temp;
602 StringEnumeration *e = NULL;
603 UErrorCode status = U_ZERO_ERROR;
604
605 if (hasScript) {
606 resultRemainder.append(scriptDisplayName(script, temp));
607 }
608 if (hasCountry) {
609 appendWithSep(resultRemainder, regionDisplayName(country, temp));
610 }
611 if (hasVariant) {
612 appendWithSep(resultRemainder, variantDisplayName(variant, temp));
613 }
614 resultRemainder.findAndReplace(formatOpenParen, formatReplaceOpenParen);
615 resultRemainder.findAndReplace(formatCloseParen, formatReplaceCloseParen);
616
617 e = locale.createKeywords(status);
618 if (e && U_SUCCESS(status)) {
619 UnicodeString temp2;
620 char value[ULOC_KEYWORD_AND_VALUES_CAPACITY]; // sigh, no ULOC_VALUE_CAPACITY
621 const char* key;
622 while ((key = e->next((int32_t *)0, status)) != NULL) {
623 locale.getKeywordValue(key, value, ULOC_KEYWORD_AND_VALUES_CAPACITY, status);
624 keyDisplayName(key, temp);
625 temp.findAndReplace(formatOpenParen, formatReplaceOpenParen);
626 temp.findAndReplace(formatCloseParen, formatReplaceCloseParen);
627 keyValueDisplayName(key, value, temp2);
628 temp2.findAndReplace(formatOpenParen, formatReplaceOpenParen);
629 temp2.findAndReplace(formatCloseParen, formatReplaceCloseParen);
630 if (temp2 != UnicodeString(value, -1, US_INV)) {
631 appendWithSep(resultRemainder, temp2);
632 } else if (temp != UnicodeString(key, -1, US_INV)) {
633 UnicodeString temp3;
634 Formattable data[] = {
635 temp,
636 temp2
637 };
638 FieldPosition fpos;
639 status = U_ZERO_ERROR;
640 keyTypeFormat->format(data, 2, temp3, fpos, status);
641 appendWithSep(resultRemainder, temp3);
642 } else {
643 appendWithSep(resultRemainder, temp)
644 .append((UChar)0x3d /* = */)
645 .append(temp2);
646 }
647 }
648 delete e;
649 }
650
651 if (!resultRemainder.isEmpty()) {
652 Formattable data[] = {
653 resultName,
654 resultRemainder
655 };
656 FieldPosition fpos;
657 status = U_ZERO_ERROR;
658 format->format(data, 2, result, fpos, status);
659 return adjustForUsageAndContext(kCapContextUsageLanguage, result);
660 }
661
662 result = resultName;
663 return adjustForUsageAndContext(kCapContextUsageLanguage, result);
664 }
665
666 UnicodeString&
667 LocaleDisplayNamesImpl::appendWithSep(UnicodeString& buffer, const UnicodeString& src) const {
668 if (buffer.isEmpty()) {
669 buffer.setTo(src);
670 } else {
671 UnicodeString combined;
672 Formattable data[] = {
673 buffer,
674 src
675 };
676 FieldPosition fpos;
677 UErrorCode status = U_ZERO_ERROR;
678 separatorFormat->format(data, 2, combined, fpos, status);
679 if (U_SUCCESS(status)) {
680 buffer.setTo(combined);
681 }
682 }
683 return buffer;
684 }
685
686 UnicodeString&
687 LocaleDisplayNamesImpl::localeDisplayName(const char* localeId,
688 UnicodeString& result) const {
689 return localeDisplayName(Locale(localeId), result);
690 }
691
692 // private
693 UnicodeString&
694 LocaleDisplayNamesImpl::localeIdName(const char* localeId,
695 UnicodeString& result) const {
696 return langData.getNoFallback("Languages", localeId, result);
697 }
698
699 UnicodeString&
700 LocaleDisplayNamesImpl::languageDisplayName(const char* lang,
701 UnicodeString& result) const {
702 if (uprv_strcmp("root", lang) == 0 || uprv_strchr(lang, '_') != NULL) {
703 return result = UnicodeString(lang, -1, US_INV);
704 }
705 langData.get("Languages", lang, result);
706 return adjustForUsageAndContext(kCapContextUsageLanguage, result);
707 }
708
709 UnicodeString&
710 LocaleDisplayNamesImpl::scriptDisplayName(const char* script,
711 UnicodeString& result) const {
712 langData.get("Scripts", script, result);
713 return adjustForUsageAndContext(kCapContextUsageScript, result);
714 }
715
716 UnicodeString&
717 LocaleDisplayNamesImpl::scriptDisplayName(UScriptCode scriptCode,
718 UnicodeString& result) const {
719 const char* name = uscript_getName(scriptCode);
720 langData.get("Scripts", name, result);
721 return adjustForUsageAndContext(kCapContextUsageScript, result);
722 }
723
724 UnicodeString&
725 LocaleDisplayNamesImpl::regionDisplayName(const char* region,
726 UnicodeString& result) const {
727 regionData.get("Countries", region, result);
728 return adjustForUsageAndContext(kCapContextUsageTerritory, result);
729 }
730
731 UnicodeString&
732 LocaleDisplayNamesImpl::variantDisplayName(const char* variant,
733 UnicodeString& result) const {
734 langData.get("Variants", variant, result);
735 return adjustForUsageAndContext(kCapContextUsageVariant, result);
736 }
737
738 UnicodeString&
739 LocaleDisplayNamesImpl::keyDisplayName(const char* key,
740 UnicodeString& result) const {
741 langData.get("Keys", key, result);
742 return adjustForUsageAndContext(kCapContextUsageKey, result);
743 }
744
745 UnicodeString&
746 LocaleDisplayNamesImpl::keyValueDisplayName(const char* key,
747 const char* value,
748 UnicodeString& result) const {
749 langData.get("Types", key, value, result);
750 return adjustForUsageAndContext(kCapContextUsageType, result);
751 }
752
753 ////////////////////////////////////////////////////////////////////////////////////////////////////
754
755 LocaleDisplayNames*
756 LocaleDisplayNames::createInstance(const Locale& locale,
757 UDialectHandling dialectHandling) {
758 return new LocaleDisplayNamesImpl(locale, dialectHandling);
759 }
760
761 LocaleDisplayNames*
762 LocaleDisplayNames::createInstance(const Locale& locale,
763 UDisplayContext *contexts, int32_t length) {
764 if (contexts == NULL) {
765 length = 0;
766 }
767 return new LocaleDisplayNamesImpl(locale, contexts, length);
768 }
769
770 U_NAMESPACE_END
771
772 ////////////////////////////////////////////////////////////////////////////////////////////////////
773
774 U_NAMESPACE_USE
775
776 U_CAPI ULocaleDisplayNames * U_EXPORT2
777 uldn_open(const char * locale,
778 UDialectHandling dialectHandling,
779 UErrorCode *pErrorCode) {
780 if (U_FAILURE(*pErrorCode)) {
781 return 0;
782 }
783 if (locale == NULL) {
784 locale = uloc_getDefault();
785 }
786 return (ULocaleDisplayNames *)LocaleDisplayNames::createInstance(Locale(locale), dialectHandling);
787 }
788
789 U_CAPI ULocaleDisplayNames * U_EXPORT2
790 uldn_openForContext(const char * locale,
791 UDisplayContext *contexts, int32_t length,
792 UErrorCode *pErrorCode) {
793 if (U_FAILURE(*pErrorCode)) {
794 return 0;
795 }
796 if (locale == NULL) {
797 locale = uloc_getDefault();
798 }
799 return (ULocaleDisplayNames *)LocaleDisplayNames::createInstance(Locale(locale), contexts, length);
800 }
801
802
803 U_CAPI void U_EXPORT2
804 uldn_close(ULocaleDisplayNames *ldn) {
805 delete (LocaleDisplayNames *)ldn;
806 }
807
808 U_CAPI const char * U_EXPORT2
809 uldn_getLocale(const ULocaleDisplayNames *ldn) {
810 if (ldn) {
811 return ((const LocaleDisplayNames *)ldn)->getLocale().getName();
812 }
813 return NULL;
814 }
815
816 U_CAPI UDialectHandling U_EXPORT2
817 uldn_getDialectHandling(const ULocaleDisplayNames *ldn) {
818 if (ldn) {
819 return ((const LocaleDisplayNames *)ldn)->getDialectHandling();
820 }
821 return ULDN_STANDARD_NAMES;
822 }
823
824 U_CAPI UDisplayContext U_EXPORT2
825 uldn_getContext(const ULocaleDisplayNames *ldn,
826 UDisplayContextType type,
827 UErrorCode *pErrorCode) {
828 if (U_FAILURE(*pErrorCode)) {
829 return (UDisplayContext)0;
830 }
831 return ((const LocaleDisplayNames *)ldn)->getContext(type);
832 }
833
834 U_CAPI int32_t U_EXPORT2
835 uldn_localeDisplayName(const ULocaleDisplayNames *ldn,
836 const char *locale,
837 UChar *result,
838 int32_t maxResultSize,
839 UErrorCode *pErrorCode) {
840 if (U_FAILURE(*pErrorCode)) {
841 return 0;
842 }
843 if (ldn == NULL || locale == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
844 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
845 return 0;
846 }
847 UnicodeString temp(result, 0, maxResultSize);
848 ((const LocaleDisplayNames *)ldn)->localeDisplayName(locale, temp);
849 return temp.extract(result, maxResultSize, *pErrorCode);
850 }
851
852 U_CAPI int32_t U_EXPORT2
853 uldn_languageDisplayName(const ULocaleDisplayNames *ldn,
854 const char *lang,
855 UChar *result,
856 int32_t maxResultSize,
857 UErrorCode *pErrorCode) {
858 if (U_FAILURE(*pErrorCode)) {
859 return 0;
860 }
861 if (ldn == NULL || lang == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
862 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
863 return 0;
864 }
865 UnicodeString temp(result, 0, maxResultSize);
866 ((const LocaleDisplayNames *)ldn)->languageDisplayName(lang, temp);
867 return temp.extract(result, maxResultSize, *pErrorCode);
868 }
869
870 U_CAPI int32_t U_EXPORT2
871 uldn_scriptDisplayName(const ULocaleDisplayNames *ldn,
872 const char *script,
873 UChar *result,
874 int32_t maxResultSize,
875 UErrorCode *pErrorCode) {
876 if (U_FAILURE(*pErrorCode)) {
877 return 0;
878 }
879 if (ldn == NULL || script == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
880 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
881 return 0;
882 }
883 UnicodeString temp(result, 0, maxResultSize);
884 ((const LocaleDisplayNames *)ldn)->scriptDisplayName(script, temp);
885 return temp.extract(result, maxResultSize, *pErrorCode);
886 }
887
888 U_CAPI int32_t U_EXPORT2
889 uldn_scriptCodeDisplayName(const ULocaleDisplayNames *ldn,
890 UScriptCode scriptCode,
891 UChar *result,
892 int32_t maxResultSize,
893 UErrorCode *pErrorCode) {
894 return uldn_scriptDisplayName(ldn, uscript_getName(scriptCode), result, maxResultSize, pErrorCode);
895 }
896
897 U_CAPI int32_t U_EXPORT2
898 uldn_regionDisplayName(const ULocaleDisplayNames *ldn,
899 const char *region,
900 UChar *result,
901 int32_t maxResultSize,
902 UErrorCode *pErrorCode) {
903 if (U_FAILURE(*pErrorCode)) {
904 return 0;
905 }
906 if (ldn == NULL || region == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
907 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
908 return 0;
909 }
910 UnicodeString temp(result, 0, maxResultSize);
911 ((const LocaleDisplayNames *)ldn)->regionDisplayName(region, temp);
912 return temp.extract(result, maxResultSize, *pErrorCode);
913 }
914
915 U_CAPI int32_t U_EXPORT2
916 uldn_variantDisplayName(const ULocaleDisplayNames *ldn,
917 const char *variant,
918 UChar *result,
919 int32_t maxResultSize,
920 UErrorCode *pErrorCode) {
921 if (U_FAILURE(*pErrorCode)) {
922 return 0;
923 }
924 if (ldn == NULL || variant == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
925 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
926 return 0;
927 }
928 UnicodeString temp(result, 0, maxResultSize);
929 ((const LocaleDisplayNames *)ldn)->variantDisplayName(variant, temp);
930 return temp.extract(result, maxResultSize, *pErrorCode);
931 }
932
933 U_CAPI int32_t U_EXPORT2
934 uldn_keyDisplayName(const ULocaleDisplayNames *ldn,
935 const char *key,
936 UChar *result,
937 int32_t maxResultSize,
938 UErrorCode *pErrorCode) {
939 if (U_FAILURE(*pErrorCode)) {
940 return 0;
941 }
942 if (ldn == NULL || key == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
943 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
944 return 0;
945 }
946 UnicodeString temp(result, 0, maxResultSize);
947 ((const LocaleDisplayNames *)ldn)->keyDisplayName(key, temp);
948 return temp.extract(result, maxResultSize, *pErrorCode);
949 }
950
951 U_CAPI int32_t U_EXPORT2
952 uldn_keyValueDisplayName(const ULocaleDisplayNames *ldn,
953 const char *key,
954 const char *value,
955 UChar *result,
956 int32_t maxResultSize,
957 UErrorCode *pErrorCode) {
958 if (U_FAILURE(*pErrorCode)) {
959 return 0;
960 }
961 if (ldn == NULL || key == NULL || value == NULL || (result == NULL && maxResultSize > 0)
962 || maxResultSize < 0) {
963 *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
964 return 0;
965 }
966 UnicodeString temp(result, 0, maxResultSize);
967 ((const LocaleDisplayNames *)ldn)->keyValueDisplayName(key, value, temp);
968 return temp.extract(result, maxResultSize, *pErrorCode);
969 }
970
971 #endif

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