1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 *******************************************************************************
5 * Copyright (C) 2010-2016, International Business Machines Corporation and
6 * others. All Rights Reserved.
7 *******************************************************************************
8 */
9 
10 #include "unicode/utypes.h"
11 
12 #if !UCONFIG_NO_FORMATTING
13 
14 #include "unicode/locdspnm.h"
15 #include "unicode/simpleformatter.h"
16 #include "unicode/ucasemap.h"
17 #include "unicode/ures.h"
18 #include "unicode/udisplaycontext.h"
19 #include "unicode/brkiter.h"
20 #include "unicode/ucurr.h"
21 #include "cmemory.h"
22 #include "cstring.h"
23 #include "mutex.h"
24 #include "ulocimp.h"
25 #include "umutex.h"
26 #include "ureslocs.h"
27 #include "uresimp.h"
28 
29 #include <stdarg.h>
30 
31 /**
32  * Concatenate a number of null-terminated strings to buffer, leaving a
33  * null-terminated string.  The last argument should be the null pointer.
34  * Return the length of the string in the buffer, not counting the trailing
35  * null.  Return -1 if there is an error (buffer is null, or buflen < 1).
36  */
ncat(char * buffer,uint32_t buflen,...)37 static int32_t ncat(char *buffer, uint32_t buflen, ...) {
38   va_list args;
39   char *str;
40   char *p = buffer;
41   const char* e = buffer + buflen - 1;
42 
43   if (buffer == NULL || buflen < 1) {
44     return -1;
45   }
46 
47   va_start(args, buflen);
48   while ((str = va_arg(args, char *)) != 0) {
49     char c;
50     while (p != e && (c = *str++) != 0) {
51       *p++ = c;
52     }
53   }
54   *p = 0;
55   va_end(args);
56 
57   return static_cast<int32_t>(p - buffer);
58 }
59 
60 U_NAMESPACE_BEGIN
61 
62 ////////////////////////////////////////////////////////////////////////////////////////////////////
63 
64 // Access resource data for locale components.
65 // Wrap code in uloc.c for now.
66 class ICUDataTable {
67     const char* path;
68     Locale locale;
69 
70 public:
71     ICUDataTable(const char* path, const Locale& locale);
72     ~ICUDataTable();
73 
74     const Locale& getLocale();
75 
76     UnicodeString& get(const char* tableKey, const char* itemKey,
77                         UnicodeString& result) const;
78     UnicodeString& get(const char* tableKey, const char* subTableKey, const char* itemKey,
79                         UnicodeString& result) const;
80 
81     UnicodeString& getNoFallback(const char* tableKey, const char* itemKey,
82                                 UnicodeString &result) const;
83     UnicodeString& getNoFallback(const char* tableKey, const char* subTableKey, const char* itemKey,
84                                 UnicodeString &result) const;
85 };
86 
87 inline UnicodeString &
get(const char * tableKey,const char * itemKey,UnicodeString & result) const88 ICUDataTable::get(const char* tableKey, const char* itemKey, UnicodeString& result) const {
89     return get(tableKey, NULL, itemKey, result);
90 }
91 
92 inline UnicodeString &
getNoFallback(const char * tableKey,const char * itemKey,UnicodeString & result) const93 ICUDataTable::getNoFallback(const char* tableKey, const char* itemKey, UnicodeString& result) const {
94     return getNoFallback(tableKey, NULL, itemKey, result);
95 }
96 
ICUDataTable(const char * path,const Locale & locale)97 ICUDataTable::ICUDataTable(const char* path, const Locale& locale)
98     : path(NULL), locale(Locale::getRoot())
99 {
100   if (path) {
101     int32_t len = static_cast<int32_t>(uprv_strlen(path));
102     this->path = (const char*) uprv_malloc(len + 1);
103     if (this->path) {
104       uprv_strcpy((char *)this->path, path);
105       this->locale = locale;
106     }
107   }
108 }
109 
~ICUDataTable()110 ICUDataTable::~ICUDataTable() {
111   if (path) {
112     uprv_free((void*) path);
113     path = NULL;
114   }
115 }
116 
117 const Locale&
getLocale()118 ICUDataTable::getLocale() {
119   return locale;
120 }
121 
122 UnicodeString &
get(const char * tableKey,const char * subTableKey,const char * itemKey,UnicodeString & result) const123 ICUDataTable::get(const char* tableKey, const char* subTableKey, const char* itemKey,
124                   UnicodeString &result) const {
125   UErrorCode status = U_ZERO_ERROR;
126   int32_t len = 0;
127 
128   const UChar *s = uloc_getTableStringWithFallback(path, locale.getName(),
129                                                    tableKey, subTableKey, itemKey,
130                                                    &len, &status);
131   if (U_SUCCESS(status) && len > 0) {
132     return result.setTo(s, len);
133   }
134   return result.setTo(UnicodeString(itemKey, -1, US_INV));
135 }
136 
137 UnicodeString &
getNoFallback(const char * tableKey,const char * subTableKey,const char * itemKey,UnicodeString & result) const138 ICUDataTable::getNoFallback(const char* tableKey, const char* subTableKey, const char* itemKey,
139                             UnicodeString& result) const {
140   UErrorCode status = U_ZERO_ERROR;
141   int32_t len = 0;
142 
143   const UChar *s = uloc_getTableStringWithFallback(path, locale.getName(),
144                                                    tableKey, subTableKey, itemKey,
145                                                    &len, &status);
146   if (U_SUCCESS(status)) {
147     return result.setTo(s, len);
148   }
149 
150   result.setToBogus();
151   return result;
152 }
153 
154 ////////////////////////////////////////////////////////////////////////////////////////////////////
155 
~LocaleDisplayNames()156 LocaleDisplayNames::~LocaleDisplayNames() {}
157 
158 ////////////////////////////////////////////////////////////////////////////////////////////////////
159 
160 #if 0  // currently unused
161 
162 class DefaultLocaleDisplayNames : public LocaleDisplayNames {
163   UDialectHandling dialectHandling;
164 
165 public:
166   // constructor
167   DefaultLocaleDisplayNames(UDialectHandling dialectHandling);
168 
169   virtual ~DefaultLocaleDisplayNames();
170 
171   virtual const Locale& getLocale() const;
172   virtual UDialectHandling getDialectHandling() const;
173 
174   virtual UnicodeString& localeDisplayName(const Locale& locale,
175                                            UnicodeString& result) const;
176   virtual UnicodeString& localeDisplayName(const char* localeId,
177                                            UnicodeString& result) const;
178   virtual UnicodeString& languageDisplayName(const char* lang,
179                                              UnicodeString& result) const;
180   virtual UnicodeString& scriptDisplayName(const char* script,
181                                            UnicodeString& result) const;
182   virtual UnicodeString& scriptDisplayName(UScriptCode scriptCode,
183                                            UnicodeString& result) const;
184   virtual UnicodeString& regionDisplayName(const char* region,
185                                            UnicodeString& result) const;
186   virtual UnicodeString& variantDisplayName(const char* variant,
187                                             UnicodeString& result) const;
188   virtual UnicodeString& keyDisplayName(const char* key,
189                                         UnicodeString& result) const;
190   virtual UnicodeString& keyValueDisplayName(const char* key,
191                                              const char* value,
192                                              UnicodeString& result) const;
193 };
194 
195 DefaultLocaleDisplayNames::DefaultLocaleDisplayNames(UDialectHandling dialectHandling)
196     : dialectHandling(dialectHandling) {
197 }
198 
199 DefaultLocaleDisplayNames::~DefaultLocaleDisplayNames() {
200 }
201 
202 const Locale&
203 DefaultLocaleDisplayNames::getLocale() const {
204   return Locale::getRoot();
205 }
206 
207 UDialectHandling
208 DefaultLocaleDisplayNames::getDialectHandling() const {
209   return dialectHandling;
210 }
211 
212 UnicodeString&
213 DefaultLocaleDisplayNames::localeDisplayName(const Locale& locale,
214                                              UnicodeString& result) const {
215   return result = UnicodeString(locale.getName(), -1, US_INV);
216 }
217 
218 UnicodeString&
219 DefaultLocaleDisplayNames::localeDisplayName(const char* localeId,
220                                              UnicodeString& result) const {
221   return result = UnicodeString(localeId, -1, US_INV);
222 }
223 
224 UnicodeString&
225 DefaultLocaleDisplayNames::languageDisplayName(const char* lang,
226                                                UnicodeString& result) const {
227   return result = UnicodeString(lang, -1, US_INV);
228 }
229 
230 UnicodeString&
231 DefaultLocaleDisplayNames::scriptDisplayName(const char* script,
232                                              UnicodeString& result) const {
233   return result = UnicodeString(script, -1, US_INV);
234 }
235 
236 UnicodeString&
237 DefaultLocaleDisplayNames::scriptDisplayName(UScriptCode scriptCode,
238                                              UnicodeString& result) const {
239   const char* name = uscript_getName(scriptCode);
240   if (name) {
241     return result = UnicodeString(name, -1, US_INV);
242   }
243   return result.remove();
244 }
245 
246 UnicodeString&
247 DefaultLocaleDisplayNames::regionDisplayName(const char* region,
248                                              UnicodeString& result) const {
249   return result = UnicodeString(region, -1, US_INV);
250 }
251 
252 UnicodeString&
253 DefaultLocaleDisplayNames::variantDisplayName(const char* variant,
254                                               UnicodeString& result) const {
255   return result = UnicodeString(variant, -1, US_INV);
256 }
257 
258 UnicodeString&
259 DefaultLocaleDisplayNames::keyDisplayName(const char* key,
260                                           UnicodeString& result) const {
261   return result = UnicodeString(key, -1, US_INV);
262 }
263 
264 UnicodeString&
265 DefaultLocaleDisplayNames::keyValueDisplayName(const char* /* key */,
266                                                const char* value,
267                                                UnicodeString& result) const {
268   return result = UnicodeString(value, -1, US_INV);
269 }
270 
271 #endif  // currently unused class DefaultLocaleDisplayNames
272 
273 ////////////////////////////////////////////////////////////////////////////////////////////////////
274 
275 class LocaleDisplayNamesImpl : public LocaleDisplayNames {
276     Locale locale;
277     UDialectHandling dialectHandling;
278     ICUDataTable langData;
279     ICUDataTable regionData;
280     SimpleFormatter separatorFormat;
281     SimpleFormatter format;
282     SimpleFormatter keyTypeFormat;
283     UDisplayContext capitalizationContext;
284 #if !UCONFIG_NO_BREAK_ITERATION
285     BreakIterator* capitalizationBrkIter;
286 #else
287     UObject* capitalizationBrkIter;
288 #endif
289     static UMutex  capitalizationBrkIterLock;
290     UnicodeString formatOpenParen;
291     UnicodeString formatReplaceOpenParen;
292     UnicodeString formatCloseParen;
293     UnicodeString formatReplaceCloseParen;
294     UDisplayContext nameLength;
295 
296     // Constants for capitalization context usage types.
297     enum CapContextUsage {
298         kCapContextUsageLanguage,
299         kCapContextUsageScript,
300         kCapContextUsageTerritory,
301         kCapContextUsageVariant,
302         kCapContextUsageKey,
303         kCapContextUsageKeyValue,
304         kCapContextUsageCount
305     };
306     // Capitalization transforms. For each usage type, indicates whether to titlecase for
307     // the context specified in capitalizationContext (which we know at construction time)
308      UBool fCapitalization[kCapContextUsageCount];
309 
310 public:
311     // constructor
312     LocaleDisplayNamesImpl(const Locale& locale, UDialectHandling dialectHandling);
313     LocaleDisplayNamesImpl(const Locale& locale, UDisplayContext *contexts, int32_t length);
314     virtual ~LocaleDisplayNamesImpl();
315 
316     virtual const Locale& getLocale() const;
317     virtual UDialectHandling getDialectHandling() const;
318     virtual UDisplayContext getContext(UDisplayContextType type) const;
319 
320     virtual UnicodeString& localeDisplayName(const Locale& locale,
321                                                 UnicodeString& result) const;
322     virtual UnicodeString& localeDisplayName(const char* localeId,
323                                                 UnicodeString& result) const;
324     virtual UnicodeString& languageDisplayName(const char* lang,
325                                                UnicodeString& result) const;
326     virtual UnicodeString& scriptDisplayName(const char* script,
327                                                 UnicodeString& result) const;
328     virtual UnicodeString& scriptDisplayName(UScriptCode scriptCode,
329                                                 UnicodeString& result) const;
330     virtual UnicodeString& regionDisplayName(const char* region,
331                                                 UnicodeString& result) const;
332     virtual UnicodeString& variantDisplayName(const char* variant,
333                                                 UnicodeString& result) const;
334     virtual UnicodeString& keyDisplayName(const char* key,
335                                                 UnicodeString& result) const;
336     virtual UnicodeString& keyValueDisplayName(const char* key,
337                                                 const char* value,
338                                                 UnicodeString& result) const;
339 private:
340     UnicodeString& localeIdName(const char* localeId,
341                                 UnicodeString& result) const;
342     UnicodeString& appendWithSep(UnicodeString& buffer, const UnicodeString& src) const;
343     UnicodeString& adjustForUsageAndContext(CapContextUsage usage, UnicodeString& result) const;
344     UnicodeString& scriptDisplayName(const char* script, UnicodeString& result, UBool skipAdjust) const;
345     UnicodeString& regionDisplayName(const char* region, UnicodeString& result, UBool skipAdjust) const;
346     UnicodeString& variantDisplayName(const char* variant, UnicodeString& result, UBool skipAdjust) const;
347     UnicodeString& keyDisplayName(const char* key, UnicodeString& result, UBool skipAdjust) const;
348     UnicodeString& keyValueDisplayName(const char* key, const char* value,
349                                         UnicodeString& result, UBool skipAdjust) const;
350     void initialize(void);
351 
352     struct CapitalizationContextSink;
353 };
354 
355 UMutex LocaleDisplayNamesImpl::capitalizationBrkIterLock = U_MUTEX_INITIALIZER;
356 
LocaleDisplayNamesImpl(const Locale & locale,UDialectHandling dialectHandling)357 LocaleDisplayNamesImpl::LocaleDisplayNamesImpl(const Locale& locale,
358                                                UDialectHandling dialectHandling)
359     : dialectHandling(dialectHandling)
360     , langData(U_ICUDATA_LANG, locale)
361     , regionData(U_ICUDATA_REGION, locale)
362     , capitalizationContext(UDISPCTX_CAPITALIZATION_NONE)
363     , capitalizationBrkIter(NULL)
364     , nameLength(UDISPCTX_LENGTH_FULL)
365 {
366     initialize();
367 }
368 
LocaleDisplayNamesImpl(const Locale & locale,UDisplayContext * contexts,int32_t length)369 LocaleDisplayNamesImpl::LocaleDisplayNamesImpl(const Locale& locale,
370                                                UDisplayContext *contexts, int32_t length)
371     : dialectHandling(ULDN_STANDARD_NAMES)
372     , langData(U_ICUDATA_LANG, locale)
373     , regionData(U_ICUDATA_REGION, locale)
374     , capitalizationContext(UDISPCTX_CAPITALIZATION_NONE)
375     , capitalizationBrkIter(NULL)
376     , nameLength(UDISPCTX_LENGTH_FULL)
377 {
378     while (length-- > 0) {
379         UDisplayContext value = *contexts++;
380         UDisplayContextType selector = (UDisplayContextType)((uint32_t)value >> 8);
381         switch (selector) {
382             case UDISPCTX_TYPE_DIALECT_HANDLING:
383                 dialectHandling = (UDialectHandling)value;
384                 break;
385             case UDISPCTX_TYPE_CAPITALIZATION:
386                 capitalizationContext = value;
387                 break;
388             case UDISPCTX_TYPE_DISPLAY_LENGTH:
389                 nameLength = value;
390                 break;
391             default:
392                 break;
393         }
394     }
395     initialize();
396 }
397 
398 struct LocaleDisplayNamesImpl::CapitalizationContextSink : public ResourceSink {
399     UBool hasCapitalizationUsage;
400     LocaleDisplayNamesImpl& parent;
401 
CapitalizationContextSinkLocaleDisplayNamesImpl::CapitalizationContextSink402     CapitalizationContextSink(LocaleDisplayNamesImpl& _parent)
403       : hasCapitalizationUsage(FALSE), parent(_parent) {}
404     virtual ~CapitalizationContextSink();
405 
putLocaleDisplayNamesImpl::CapitalizationContextSink406     virtual void put(const char *key, ResourceValue &value, UBool /*noFallback*/,
407             UErrorCode &errorCode) {
408         ResourceTable contexts = value.getTable(errorCode);
409         if (U_FAILURE(errorCode)) { return; }
410         for (int i = 0; contexts.getKeyAndValue(i, key, value); ++i) {
411 
412             CapContextUsage usageEnum;
413             if (uprv_strcmp(key, "key") == 0) {
414                 usageEnum = kCapContextUsageKey;
415             } else if (uprv_strcmp(key, "keyValue") == 0) {
416                 usageEnum = kCapContextUsageKeyValue;
417             } else if (uprv_strcmp(key, "languages") == 0) {
418                 usageEnum = kCapContextUsageLanguage;
419             } else if (uprv_strcmp(key, "script") == 0) {
420                 usageEnum = kCapContextUsageScript;
421             } else if (uprv_strcmp(key, "territory") == 0) {
422                 usageEnum = kCapContextUsageTerritory;
423             } else if (uprv_strcmp(key, "variant") == 0) {
424                 usageEnum = kCapContextUsageVariant;
425             } else {
426                 continue;
427             }
428 
429             int32_t len = 0;
430             const int32_t* intVector = value.getIntVector(len, errorCode);
431             if (U_FAILURE(errorCode)) { return; }
432             if (len < 2) { continue; }
433 
434             int32_t titlecaseInt = (parent.capitalizationContext == UDISPCTX_CAPITALIZATION_FOR_UI_LIST_OR_MENU) ? intVector[0] : intVector[1];
435             if (titlecaseInt == 0) { continue; }
436 
437             parent.fCapitalization[usageEnum] = TRUE;
438             hasCapitalizationUsage = TRUE;
439         }
440     }
441 };
442 
443 // Virtual destructors must be defined out of line.
~CapitalizationContextSink()444 LocaleDisplayNamesImpl::CapitalizationContextSink::~CapitalizationContextSink() {}
445 
446 void
initialize(void)447 LocaleDisplayNamesImpl::initialize(void) {
448     LocaleDisplayNamesImpl *nonConstThis = (LocaleDisplayNamesImpl *)this;
449     nonConstThis->locale = langData.getLocale() == Locale::getRoot()
450         ? regionData.getLocale()
451         : langData.getLocale();
452 
453     UnicodeString sep;
454     langData.getNoFallback("localeDisplayPattern", "separator", sep);
455     if (sep.isBogus()) {
456         sep = UnicodeString("{0}, {1}", -1, US_INV);
457     }
458     UErrorCode status = U_ZERO_ERROR;
459     separatorFormat.applyPatternMinMaxArguments(sep, 2, 2, status);
460 
461     UnicodeString pattern;
462     langData.getNoFallback("localeDisplayPattern", "pattern", pattern);
463     if (pattern.isBogus()) {
464         pattern = UnicodeString("{0} ({1})", -1, US_INV);
465     }
466     format.applyPatternMinMaxArguments(pattern, 2, 2, status);
467     if (pattern.indexOf((UChar)0xFF08) >= 0) {
468         formatOpenParen.setTo((UChar)0xFF08);         // fullwidth (
469         formatReplaceOpenParen.setTo((UChar)0xFF3B);  // fullwidth [
470         formatCloseParen.setTo((UChar)0xFF09);        // fullwidth )
471         formatReplaceCloseParen.setTo((UChar)0xFF3D); // fullwidth ]
472     } else {
473         formatOpenParen.setTo((UChar)0x0028);         // (
474         formatReplaceOpenParen.setTo((UChar)0x005B);  // [
475         formatCloseParen.setTo((UChar)0x0029);        // )
476         formatReplaceCloseParen.setTo((UChar)0x005D); // ]
477     }
478 
479     UnicodeString ktPattern;
480     langData.get("localeDisplayPattern", "keyTypePattern", ktPattern);
481     if (ktPattern.isBogus()) {
482         ktPattern = UnicodeString("{0}={1}", -1, US_INV);
483     }
484     keyTypeFormat.applyPatternMinMaxArguments(ktPattern, 2, 2, status);
485 
486     uprv_memset(fCapitalization, 0, sizeof(fCapitalization));
487 #if !UCONFIG_NO_BREAK_ITERATION
488     // Only get the context data if we need it! This is a const object so we know now...
489     // Also check whether we will need a break iterator (depends on the data)
490     UBool needBrkIter = FALSE;
491     if (capitalizationContext == UDISPCTX_CAPITALIZATION_FOR_UI_LIST_OR_MENU || capitalizationContext == UDISPCTX_CAPITALIZATION_FOR_STANDALONE) {
492         LocalUResourceBundlePointer resource(ures_open(NULL, locale.getName(), &status));
493         if (U_FAILURE(status)) { return; }
494         CapitalizationContextSink sink(*this);
495         ures_getAllItemsWithFallback(resource.getAlias(), "contextTransforms", sink, status);
496         if (status == U_MISSING_RESOURCE_ERROR) {
497             // Silently ignore.  Not every locale has contextTransforms.
498             status = U_ZERO_ERROR;
499         } else if (U_FAILURE(status)) {
500             return;
501         }
502         needBrkIter = sink.hasCapitalizationUsage;
503     }
504     // Get a sentence break iterator if we will need it
505     if (needBrkIter || capitalizationContext == UDISPCTX_CAPITALIZATION_FOR_BEGINNING_OF_SENTENCE) {
506         status = U_ZERO_ERROR;
507         capitalizationBrkIter = BreakIterator::createSentenceInstance(locale, status);
508         if (U_FAILURE(status)) {
509             delete capitalizationBrkIter;
510             capitalizationBrkIter = NULL;
511         }
512     }
513 #endif
514 }
515 
~LocaleDisplayNamesImpl()516 LocaleDisplayNamesImpl::~LocaleDisplayNamesImpl() {
517 #if !UCONFIG_NO_BREAK_ITERATION
518     delete capitalizationBrkIter;
519 #endif
520 }
521 
522 const Locale&
getLocale() const523 LocaleDisplayNamesImpl::getLocale() const {
524     return locale;
525 }
526 
527 UDialectHandling
getDialectHandling() const528 LocaleDisplayNamesImpl::getDialectHandling() const {
529     return dialectHandling;
530 }
531 
532 UDisplayContext
getContext(UDisplayContextType type) const533 LocaleDisplayNamesImpl::getContext(UDisplayContextType type) const {
534     switch (type) {
535         case UDISPCTX_TYPE_DIALECT_HANDLING:
536             return (UDisplayContext)dialectHandling;
537         case UDISPCTX_TYPE_CAPITALIZATION:
538             return capitalizationContext;
539         case UDISPCTX_TYPE_DISPLAY_LENGTH:
540             return nameLength;
541         default:
542             break;
543     }
544     return (UDisplayContext)0;
545 }
546 
547 UnicodeString&
adjustForUsageAndContext(CapContextUsage usage,UnicodeString & result) const548 LocaleDisplayNamesImpl::adjustForUsageAndContext(CapContextUsage usage,
549                                                 UnicodeString& result) const {
550 #if !UCONFIG_NO_BREAK_ITERATION
551     // check to see whether we need to titlecase result
552     if ( result.length() > 0 && u_islower(result.char32At(0)) && capitalizationBrkIter!= NULL &&
553           ( capitalizationContext==UDISPCTX_CAPITALIZATION_FOR_BEGINNING_OF_SENTENCE || fCapitalization[usage] ) ) {
554         // note fCapitalization[usage] won't be set unless capitalizationContext is UI_LIST_OR_MENU or STANDALONE
555         Mutex lock(&capitalizationBrkIterLock);
556         result.toTitle(capitalizationBrkIter, locale, U_TITLECASE_NO_LOWERCASE | U_TITLECASE_NO_BREAK_ADJUSTMENT);
557     }
558 #endif
559     return result;
560 }
561 
562 UnicodeString&
localeDisplayName(const Locale & loc,UnicodeString & result) const563 LocaleDisplayNamesImpl::localeDisplayName(const Locale& loc,
564                                           UnicodeString& result) const {
565   if (loc.isBogus()) {
566     result.setToBogus();
567     return result;
568   }
569   UnicodeString resultName;
570 
571   const char* lang = loc.getLanguage();
572   if (uprv_strlen(lang) == 0) {
573     lang = "root";
574   }
575   const char* script = loc.getScript();
576   const char* country = loc.getCountry();
577   const char* variant = loc.getVariant();
578 
579   UBool hasScript = uprv_strlen(script) > 0;
580   UBool hasCountry = uprv_strlen(country) > 0;
581   UBool hasVariant = uprv_strlen(variant) > 0;
582 
583   if (dialectHandling == ULDN_DIALECT_NAMES) {
584     char buffer[ULOC_FULLNAME_CAPACITY];
585     do { // loop construct is so we can break early out of search
586       if (hasScript && hasCountry) {
587         ncat(buffer, ULOC_FULLNAME_CAPACITY, lang, "_", script, "_", country, (char *)0);
588         localeIdName(buffer, resultName);
589         if (!resultName.isBogus()) {
590           hasScript = FALSE;
591           hasCountry = FALSE;
592           break;
593         }
594       }
595       if (hasScript) {
596         ncat(buffer, ULOC_FULLNAME_CAPACITY, lang, "_", script, (char *)0);
597         localeIdName(buffer, resultName);
598         if (!resultName.isBogus()) {
599           hasScript = FALSE;
600           break;
601         }
602       }
603       if (hasCountry) {
604         ncat(buffer, ULOC_FULLNAME_CAPACITY, lang, "_", country, (char*)0);
605         localeIdName(buffer, resultName);
606         if (!resultName.isBogus()) {
607           hasCountry = FALSE;
608           break;
609         }
610       }
611     } while (FALSE);
612   }
613   if (resultName.isBogus() || resultName.isEmpty()) {
614     localeIdName(lang, resultName);
615   }
616 
617   UnicodeString resultRemainder;
618   UnicodeString temp;
619   UErrorCode status = U_ZERO_ERROR;
620 
621   if (hasScript) {
622     resultRemainder.append(scriptDisplayName(script, temp, TRUE));
623   }
624   if (hasCountry) {
625     appendWithSep(resultRemainder, regionDisplayName(country, temp, TRUE));
626   }
627   if (hasVariant) {
628     appendWithSep(resultRemainder, variantDisplayName(variant, temp, TRUE));
629   }
630   resultRemainder.findAndReplace(formatOpenParen, formatReplaceOpenParen);
631   resultRemainder.findAndReplace(formatCloseParen, formatReplaceCloseParen);
632 
633   LocalPointer<StringEnumeration> e(loc.createKeywords(status));
634   if (e.isValid() && U_SUCCESS(status)) {
635     UnicodeString temp2;
636     char value[ULOC_KEYWORD_AND_VALUES_CAPACITY]; // sigh, no ULOC_VALUE_CAPACITY
637     const char* key;
638     while ((key = e->next((int32_t *)0, status)) != NULL) {
639       value[0] = 0;
640       loc.getKeywordValue(key, value, ULOC_KEYWORD_AND_VALUES_CAPACITY, status);
641       if (U_FAILURE(status) || status == U_STRING_NOT_TERMINATED_WARNING) {
642         return result;
643       }
644       keyDisplayName(key, temp, TRUE);
645       temp.findAndReplace(formatOpenParen, formatReplaceOpenParen);
646       temp.findAndReplace(formatCloseParen, formatReplaceCloseParen);
647       keyValueDisplayName(key, value, temp2, TRUE);
648       temp2.findAndReplace(formatOpenParen, formatReplaceOpenParen);
649       temp2.findAndReplace(formatCloseParen, formatReplaceCloseParen);
650       if (temp2 != UnicodeString(value, -1, US_INV)) {
651         appendWithSep(resultRemainder, temp2);
652       } else if (temp != UnicodeString(key, -1, US_INV)) {
653         UnicodeString temp3;
654         keyTypeFormat.format(temp, temp2, temp3, status);
655         appendWithSep(resultRemainder, temp3);
656       } else {
657         appendWithSep(resultRemainder, temp)
658           .append((UChar)0x3d /* = */)
659           .append(temp2);
660       }
661     }
662   }
663 
664   if (!resultRemainder.isEmpty()) {
665     format.format(resultName, resultRemainder, result.remove(), status);
666     return adjustForUsageAndContext(kCapContextUsageLanguage, result);
667   }
668 
669   result = resultName;
670   return adjustForUsageAndContext(kCapContextUsageLanguage, result);
671 }
672 
673 UnicodeString&
appendWithSep(UnicodeString & buffer,const UnicodeString & src) const674 LocaleDisplayNamesImpl::appendWithSep(UnicodeString& buffer, const UnicodeString& src) const {
675     if (buffer.isEmpty()) {
676         buffer.setTo(src);
677     } else {
678         const UnicodeString *values[2] = { &buffer, &src };
679         UErrorCode status = U_ZERO_ERROR;
680         separatorFormat.formatAndReplace(values, 2, buffer, NULL, 0, status);
681     }
682     return buffer;
683 }
684 
685 UnicodeString&
localeDisplayName(const char * localeId,UnicodeString & result) const686 LocaleDisplayNamesImpl::localeDisplayName(const char* localeId,
687                                           UnicodeString& result) const {
688     return localeDisplayName(Locale(localeId), result);
689 }
690 
691 // private
692 UnicodeString&
localeIdName(const char * localeId,UnicodeString & result) const693 LocaleDisplayNamesImpl::localeIdName(const char* localeId,
694                                      UnicodeString& result) const {
695     if (nameLength == UDISPCTX_LENGTH_SHORT) {
696         langData.getNoFallback("Languages%short", localeId, result);
697         if (!result.isBogus()) {
698             return result;
699         }
700     }
701     return langData.getNoFallback("Languages", localeId, result);
702 }
703 
704 UnicodeString&
languageDisplayName(const char * lang,UnicodeString & result) const705 LocaleDisplayNamesImpl::languageDisplayName(const char* lang,
706                                             UnicodeString& result) const {
707     if (uprv_strcmp("root", lang) == 0 || uprv_strchr(lang, '_') != NULL) {
708         return result = UnicodeString(lang, -1, US_INV);
709     }
710     if (nameLength == UDISPCTX_LENGTH_SHORT) {
711         langData.get("Languages%short", lang, result);
712         if (!result.isBogus()) {
713             return adjustForUsageAndContext(kCapContextUsageLanguage, result);
714         }
715     }
716     langData.get("Languages", lang, result);
717     return adjustForUsageAndContext(kCapContextUsageLanguage, result);
718 }
719 
720 UnicodeString&
scriptDisplayName(const char * script,UnicodeString & result,UBool skipAdjust) const721 LocaleDisplayNamesImpl::scriptDisplayName(const char* script,
722                                           UnicodeString& result,
723                                           UBool skipAdjust) const {
724     if (nameLength == UDISPCTX_LENGTH_SHORT) {
725         langData.get("Scripts%short", script, result);
726         if (!result.isBogus()) {
727             return skipAdjust? result: adjustForUsageAndContext(kCapContextUsageScript, result);
728         }
729     }
730     langData.get("Scripts", script, result);
731     return skipAdjust? result: adjustForUsageAndContext(kCapContextUsageScript, result);
732 }
733 
734 UnicodeString&
scriptDisplayName(const char * script,UnicodeString & result) const735 LocaleDisplayNamesImpl::scriptDisplayName(const char* script,
736                                           UnicodeString& result) const {
737     return scriptDisplayName(script, result, FALSE);
738 }
739 
740 UnicodeString&
scriptDisplayName(UScriptCode scriptCode,UnicodeString & result) const741 LocaleDisplayNamesImpl::scriptDisplayName(UScriptCode scriptCode,
742                                           UnicodeString& result) const {
743     return scriptDisplayName(uscript_getName(scriptCode), result, FALSE);
744 }
745 
746 UnicodeString&
regionDisplayName(const char * region,UnicodeString & result,UBool skipAdjust) const747 LocaleDisplayNamesImpl::regionDisplayName(const char* region,
748                                           UnicodeString& result,
749                                           UBool skipAdjust) const {
750     if (nameLength == UDISPCTX_LENGTH_SHORT) {
751         regionData.get("Countries%short", region, result);
752         if (!result.isBogus()) {
753             return skipAdjust? result: adjustForUsageAndContext(kCapContextUsageTerritory, result);
754         }
755     }
756     regionData.get("Countries", region, result);
757     return skipAdjust? result: adjustForUsageAndContext(kCapContextUsageTerritory, result);
758 }
759 
760 UnicodeString&
regionDisplayName(const char * region,UnicodeString & result) const761 LocaleDisplayNamesImpl::regionDisplayName(const char* region,
762                                           UnicodeString& result) const {
763     return regionDisplayName(region, result, FALSE);
764 }
765 
766 
767 UnicodeString&
variantDisplayName(const char * variant,UnicodeString & result,UBool skipAdjust) const768 LocaleDisplayNamesImpl::variantDisplayName(const char* variant,
769                                            UnicodeString& result,
770                                            UBool skipAdjust) const {
771     // don't have a resource for short variant names
772     langData.get("Variants", variant, result);
773     return skipAdjust? result: adjustForUsageAndContext(kCapContextUsageVariant, result);
774 }
775 
776 UnicodeString&
variantDisplayName(const char * variant,UnicodeString & result) const777 LocaleDisplayNamesImpl::variantDisplayName(const char* variant,
778                                            UnicodeString& result) const {
779     return variantDisplayName(variant, result, FALSE);
780 }
781 
782 UnicodeString&
keyDisplayName(const char * key,UnicodeString & result,UBool skipAdjust) const783 LocaleDisplayNamesImpl::keyDisplayName(const char* key,
784                                        UnicodeString& result,
785                                        UBool skipAdjust) const {
786     // don't have a resource for short key names
787     langData.get("Keys", key, result);
788     return skipAdjust? result: adjustForUsageAndContext(kCapContextUsageKey, result);
789 }
790 
791 UnicodeString&
keyDisplayName(const char * key,UnicodeString & result) const792 LocaleDisplayNamesImpl::keyDisplayName(const char* key,
793                                        UnicodeString& result) const {
794     return keyDisplayName(key, result, FALSE);
795 }
796 
797 UnicodeString&
keyValueDisplayName(const char * key,const char * value,UnicodeString & result,UBool skipAdjust) const798 LocaleDisplayNamesImpl::keyValueDisplayName(const char* key,
799                                             const char* value,
800                                             UnicodeString& result,
801                                             UBool skipAdjust) const {
802     if (uprv_strcmp(key, "currency") == 0) {
803         // ICU4C does not have ICU4J CurrencyDisplayInfo equivalent for now.
804         UErrorCode sts = U_ZERO_ERROR;
805         UnicodeString ustrValue(value, -1, US_INV);
806         int32_t len;
807         UBool isChoice = FALSE;
808         const UChar *currencyName = ucurr_getName(ustrValue.getTerminatedBuffer(),
809             locale.getBaseName(), UCURR_LONG_NAME, &isChoice, &len, &sts);
810         if (U_FAILURE(sts)) {
811             // Return the value as is on failure
812             result = ustrValue;
813             return result;
814         }
815         result.setTo(currencyName, len);
816         return skipAdjust? result: adjustForUsageAndContext(kCapContextUsageKeyValue, result);
817     }
818 
819     if (nameLength == UDISPCTX_LENGTH_SHORT) {
820         langData.get("Types%short", key, value, result);
821         if (!result.isBogus()) {
822             return skipAdjust? result: adjustForUsageAndContext(kCapContextUsageKeyValue, result);
823         }
824     }
825     langData.get("Types", key, value, result);
826     return skipAdjust? result: adjustForUsageAndContext(kCapContextUsageKeyValue, result);
827 }
828 
829 UnicodeString&
keyValueDisplayName(const char * key,const char * value,UnicodeString & result) const830 LocaleDisplayNamesImpl::keyValueDisplayName(const char* key,
831                                             const char* value,
832                                             UnicodeString& result) const {
833     return keyValueDisplayName(key, value, result, FALSE);
834 }
835 
836 ////////////////////////////////////////////////////////////////////////////////////////////////////
837 
838 LocaleDisplayNames*
createInstance(const Locale & locale,UDialectHandling dialectHandling)839 LocaleDisplayNames::createInstance(const Locale& locale,
840                                    UDialectHandling dialectHandling) {
841     return new LocaleDisplayNamesImpl(locale, dialectHandling);
842 }
843 
844 LocaleDisplayNames*
createInstance(const Locale & locale,UDisplayContext * contexts,int32_t length)845 LocaleDisplayNames::createInstance(const Locale& locale,
846                                    UDisplayContext *contexts, int32_t length) {
847     if (contexts == NULL) {
848         length = 0;
849     }
850     return new LocaleDisplayNamesImpl(locale, contexts, length);
851 }
852 
853 U_NAMESPACE_END
854 
855 ////////////////////////////////////////////////////////////////////////////////////////////////////
856 
857 U_NAMESPACE_USE
858 
859 U_CAPI ULocaleDisplayNames * U_EXPORT2
uldn_open(const char * locale,UDialectHandling dialectHandling,UErrorCode * pErrorCode)860 uldn_open(const char * locale,
861           UDialectHandling dialectHandling,
862           UErrorCode *pErrorCode) {
863   if (U_FAILURE(*pErrorCode)) {
864     return 0;
865   }
866   if (locale == NULL) {
867     locale = uloc_getDefault();
868   }
869   return (ULocaleDisplayNames *)LocaleDisplayNames::createInstance(Locale(locale), dialectHandling);
870 }
871 
872 U_CAPI ULocaleDisplayNames * U_EXPORT2
uldn_openForContext(const char * locale,UDisplayContext * contexts,int32_t length,UErrorCode * pErrorCode)873 uldn_openForContext(const char * locale,
874                     UDisplayContext *contexts, int32_t length,
875                     UErrorCode *pErrorCode) {
876   if (U_FAILURE(*pErrorCode)) {
877     return 0;
878   }
879   if (locale == NULL) {
880     locale = uloc_getDefault();
881   }
882   return (ULocaleDisplayNames *)LocaleDisplayNames::createInstance(Locale(locale), contexts, length);
883 }
884 
885 
886 U_CAPI void U_EXPORT2
uldn_close(ULocaleDisplayNames * ldn)887 uldn_close(ULocaleDisplayNames *ldn) {
888   delete (LocaleDisplayNames *)ldn;
889 }
890 
891 U_CAPI const char * U_EXPORT2
uldn_getLocale(const ULocaleDisplayNames * ldn)892 uldn_getLocale(const ULocaleDisplayNames *ldn) {
893   if (ldn) {
894     return ((const LocaleDisplayNames *)ldn)->getLocale().getName();
895   }
896   return NULL;
897 }
898 
899 U_CAPI UDialectHandling U_EXPORT2
uldn_getDialectHandling(const ULocaleDisplayNames * ldn)900 uldn_getDialectHandling(const ULocaleDisplayNames *ldn) {
901   if (ldn) {
902     return ((const LocaleDisplayNames *)ldn)->getDialectHandling();
903   }
904   return ULDN_STANDARD_NAMES;
905 }
906 
907 U_CAPI UDisplayContext U_EXPORT2
uldn_getContext(const ULocaleDisplayNames * ldn,UDisplayContextType type,UErrorCode * pErrorCode)908 uldn_getContext(const ULocaleDisplayNames *ldn,
909               UDisplayContextType type,
910               UErrorCode *pErrorCode) {
911   if (U_FAILURE(*pErrorCode)) {
912     return (UDisplayContext)0;
913   }
914   return ((const LocaleDisplayNames *)ldn)->getContext(type);
915 }
916 
917 U_CAPI int32_t U_EXPORT2
uldn_localeDisplayName(const ULocaleDisplayNames * ldn,const char * locale,UChar * result,int32_t maxResultSize,UErrorCode * pErrorCode)918 uldn_localeDisplayName(const ULocaleDisplayNames *ldn,
919                        const char *locale,
920                        UChar *result,
921                        int32_t maxResultSize,
922                        UErrorCode *pErrorCode) {
923   if (U_FAILURE(*pErrorCode)) {
924     return 0;
925   }
926   if (ldn == NULL || locale == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
927     *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
928     return 0;
929   }
930   UnicodeString temp(result, 0, maxResultSize);
931   ((const LocaleDisplayNames *)ldn)->localeDisplayName(locale, temp);
932   if (temp.isBogus()) {
933     *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
934     return 0;
935   }
936   return temp.extract(result, maxResultSize, *pErrorCode);
937 }
938 
939 U_CAPI int32_t U_EXPORT2
uldn_languageDisplayName(const ULocaleDisplayNames * ldn,const char * lang,UChar * result,int32_t maxResultSize,UErrorCode * pErrorCode)940 uldn_languageDisplayName(const ULocaleDisplayNames *ldn,
941                          const char *lang,
942                          UChar *result,
943                          int32_t maxResultSize,
944                          UErrorCode *pErrorCode) {
945   if (U_FAILURE(*pErrorCode)) {
946     return 0;
947   }
948   if (ldn == NULL || lang == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
949     *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
950     return 0;
951   }
952   UnicodeString temp(result, 0, maxResultSize);
953   ((const LocaleDisplayNames *)ldn)->languageDisplayName(lang, temp);
954   return temp.extract(result, maxResultSize, *pErrorCode);
955 }
956 
957 U_CAPI int32_t U_EXPORT2
uldn_scriptDisplayName(const ULocaleDisplayNames * ldn,const char * script,UChar * result,int32_t maxResultSize,UErrorCode * pErrorCode)958 uldn_scriptDisplayName(const ULocaleDisplayNames *ldn,
959                        const char *script,
960                        UChar *result,
961                        int32_t maxResultSize,
962                        UErrorCode *pErrorCode) {
963   if (U_FAILURE(*pErrorCode)) {
964     return 0;
965   }
966   if (ldn == NULL || script == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
967     *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
968     return 0;
969   }
970   UnicodeString temp(result, 0, maxResultSize);
971   ((const LocaleDisplayNames *)ldn)->scriptDisplayName(script, temp);
972   return temp.extract(result, maxResultSize, *pErrorCode);
973 }
974 
975 U_CAPI int32_t U_EXPORT2
uldn_scriptCodeDisplayName(const ULocaleDisplayNames * ldn,UScriptCode scriptCode,UChar * result,int32_t maxResultSize,UErrorCode * pErrorCode)976 uldn_scriptCodeDisplayName(const ULocaleDisplayNames *ldn,
977                            UScriptCode scriptCode,
978                            UChar *result,
979                            int32_t maxResultSize,
980                            UErrorCode *pErrorCode) {
981   return uldn_scriptDisplayName(ldn, uscript_getName(scriptCode), result, maxResultSize, pErrorCode);
982 }
983 
984 U_CAPI int32_t U_EXPORT2
uldn_regionDisplayName(const ULocaleDisplayNames * ldn,const char * region,UChar * result,int32_t maxResultSize,UErrorCode * pErrorCode)985 uldn_regionDisplayName(const ULocaleDisplayNames *ldn,
986                        const char *region,
987                        UChar *result,
988                        int32_t maxResultSize,
989                        UErrorCode *pErrorCode) {
990   if (U_FAILURE(*pErrorCode)) {
991     return 0;
992   }
993   if (ldn == NULL || region == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
994     *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
995     return 0;
996   }
997   UnicodeString temp(result, 0, maxResultSize);
998   ((const LocaleDisplayNames *)ldn)->regionDisplayName(region, temp);
999   return temp.extract(result, maxResultSize, *pErrorCode);
1000 }
1001 
1002 U_CAPI int32_t U_EXPORT2
uldn_variantDisplayName(const ULocaleDisplayNames * ldn,const char * variant,UChar * result,int32_t maxResultSize,UErrorCode * pErrorCode)1003 uldn_variantDisplayName(const ULocaleDisplayNames *ldn,
1004                         const char *variant,
1005                         UChar *result,
1006                         int32_t maxResultSize,
1007                         UErrorCode *pErrorCode) {
1008   if (U_FAILURE(*pErrorCode)) {
1009     return 0;
1010   }
1011   if (ldn == NULL || variant == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
1012     *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
1013     return 0;
1014   }
1015   UnicodeString temp(result, 0, maxResultSize);
1016   ((const LocaleDisplayNames *)ldn)->variantDisplayName(variant, temp);
1017   return temp.extract(result, maxResultSize, *pErrorCode);
1018 }
1019 
1020 U_CAPI int32_t U_EXPORT2
uldn_keyDisplayName(const ULocaleDisplayNames * ldn,const char * key,UChar * result,int32_t maxResultSize,UErrorCode * pErrorCode)1021 uldn_keyDisplayName(const ULocaleDisplayNames *ldn,
1022                     const char *key,
1023                     UChar *result,
1024                     int32_t maxResultSize,
1025                     UErrorCode *pErrorCode) {
1026   if (U_FAILURE(*pErrorCode)) {
1027     return 0;
1028   }
1029   if (ldn == NULL || key == NULL || (result == NULL && maxResultSize > 0) || maxResultSize < 0) {
1030     *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
1031     return 0;
1032   }
1033   UnicodeString temp(result, 0, maxResultSize);
1034   ((const LocaleDisplayNames *)ldn)->keyDisplayName(key, temp);
1035   return temp.extract(result, maxResultSize, *pErrorCode);
1036 }
1037 
1038 U_CAPI int32_t U_EXPORT2
uldn_keyValueDisplayName(const ULocaleDisplayNames * ldn,const char * key,const char * value,UChar * result,int32_t maxResultSize,UErrorCode * pErrorCode)1039 uldn_keyValueDisplayName(const ULocaleDisplayNames *ldn,
1040                          const char *key,
1041                          const char *value,
1042                          UChar *result,
1043                          int32_t maxResultSize,
1044                          UErrorCode *pErrorCode) {
1045   if (U_FAILURE(*pErrorCode)) {
1046     return 0;
1047   }
1048   if (ldn == NULL || key == NULL || value == NULL || (result == NULL && maxResultSize > 0)
1049       || maxResultSize < 0) {
1050     *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
1051     return 0;
1052   }
1053   UnicodeString temp(result, 0, maxResultSize);
1054   ((const LocaleDisplayNames *)ldn)->keyValueDisplayName(key, value, temp);
1055   return temp.extract(result, maxResultSize, *pErrorCode);
1056 }
1057 
1058 #endif
1059