summaryrefslogtreecommitdiff
path: root/thirdparty/icu4c/common/locid.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'thirdparty/icu4c/common/locid.cpp')
-rw-r--r--thirdparty/icu4c/common/locid.cpp2536
1 files changed, 2536 insertions, 0 deletions
diff --git a/thirdparty/icu4c/common/locid.cpp b/thirdparty/icu4c/common/locid.cpp
new file mode 100644
index 0000000000..2804e36bf6
--- /dev/null
+++ b/thirdparty/icu4c/common/locid.cpp
@@ -0,0 +1,2536 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+ **********************************************************************
+ * Copyright (C) 1997-2016, International Business Machines
+ * Corporation and others. All Rights Reserved.
+ **********************************************************************
+*
+* File locid.cpp
+*
+* Created by: Richard Gillam
+*
+* Modification History:
+*
+* Date Name Description
+* 02/11/97 aliu Changed gLocPath to fgDataDirectory and added
+* methods to get and set it.
+* 04/02/97 aliu Made operator!= inline; fixed return value
+* of getName().
+* 04/15/97 aliu Cleanup for AIX/Win32.
+* 04/24/97 aliu Numerous changes per code review.
+* 08/18/98 stephen Changed getDisplayName()
+* Added SIMPLIFIED_CHINESE, TRADITIONAL_CHINESE
+* Added getISOCountries(), getISOLanguages(),
+* getLanguagesForCountry()
+* 03/16/99 bertrand rehaul.
+* 07/21/99 stephen Added U_CFUNC setDefault
+* 11/09/99 weiv Added const char * getName() const;
+* 04/12/00 srl removing unicodestring api's and cached hash code
+* 08/10/01 grhoten Change the static Locales to accessor functions
+******************************************************************************
+*/
+
+#include <utility>
+
+#include "unicode/bytestream.h"
+#include "unicode/locid.h"
+#include "unicode/strenum.h"
+#include "unicode/stringpiece.h"
+#include "unicode/uloc.h"
+#include "unicode/ures.h"
+
+#include "bytesinkutil.h"
+#include "charstr.h"
+#include "charstrmap.h"
+#include "cmemory.h"
+#include "cstring.h"
+#include "mutex.h"
+#include "putilimp.h"
+#include "uassert.h"
+#include "ucln_cmn.h"
+#include "uhash.h"
+#include "ulocimp.h"
+#include "umutex.h"
+#include "uniquecharstr.h"
+#include "ustr_imp.h"
+#include "uvector.h"
+
+U_CDECL_BEGIN
+static UBool U_CALLCONV locale_cleanup(void);
+U_CDECL_END
+
+U_NAMESPACE_BEGIN
+
+static Locale *gLocaleCache = NULL;
+static UInitOnce gLocaleCacheInitOnce = U_INITONCE_INITIALIZER;
+
+// gDefaultLocaleMutex protects all access to gDefaultLocalesHashT and gDefaultLocale.
+static UMutex gDefaultLocaleMutex;
+static UHashtable *gDefaultLocalesHashT = NULL;
+static Locale *gDefaultLocale = NULL;
+
+/**
+ * \def ULOC_STRING_LIMIT
+ * strings beyond this value crash in CharString
+ */
+#define ULOC_STRING_LIMIT 357913941
+
+U_NAMESPACE_END
+
+typedef enum ELocalePos {
+ eENGLISH,
+ eFRENCH,
+ eGERMAN,
+ eITALIAN,
+ eJAPANESE,
+ eKOREAN,
+ eCHINESE,
+
+ eFRANCE,
+ eGERMANY,
+ eITALY,
+ eJAPAN,
+ eKOREA,
+ eCHINA, /* Alias for PRC */
+ eTAIWAN,
+ eUK,
+ eUS,
+ eCANADA,
+ eCANADA_FRENCH,
+ eROOT,
+
+
+ //eDEFAULT,
+ eMAX_LOCALES
+} ELocalePos;
+
+U_CDECL_BEGIN
+//
+// Deleter function for Locales owned by the default Locale hash table/
+//
+static void U_CALLCONV
+deleteLocale(void *obj) {
+ delete (icu::Locale *) obj;
+}
+
+static UBool U_CALLCONV locale_cleanup(void)
+{
+ U_NAMESPACE_USE
+
+ delete [] gLocaleCache;
+ gLocaleCache = NULL;
+ gLocaleCacheInitOnce.reset();
+
+ if (gDefaultLocalesHashT) {
+ uhash_close(gDefaultLocalesHashT); // Automatically deletes all elements, using deleter func.
+ gDefaultLocalesHashT = NULL;
+ }
+ gDefaultLocale = NULL;
+ return TRUE;
+}
+
+
+static void U_CALLCONV locale_init(UErrorCode &status) {
+ U_NAMESPACE_USE
+
+ U_ASSERT(gLocaleCache == NULL);
+ gLocaleCache = new Locale[(int)eMAX_LOCALES];
+ if (gLocaleCache == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+ ucln_common_registerCleanup(UCLN_COMMON_LOCALE, locale_cleanup);
+ gLocaleCache[eROOT] = Locale("");
+ gLocaleCache[eENGLISH] = Locale("en");
+ gLocaleCache[eFRENCH] = Locale("fr");
+ gLocaleCache[eGERMAN] = Locale("de");
+ gLocaleCache[eITALIAN] = Locale("it");
+ gLocaleCache[eJAPANESE] = Locale("ja");
+ gLocaleCache[eKOREAN] = Locale("ko");
+ gLocaleCache[eCHINESE] = Locale("zh");
+ gLocaleCache[eFRANCE] = Locale("fr", "FR");
+ gLocaleCache[eGERMANY] = Locale("de", "DE");
+ gLocaleCache[eITALY] = Locale("it", "IT");
+ gLocaleCache[eJAPAN] = Locale("ja", "JP");
+ gLocaleCache[eKOREA] = Locale("ko", "KR");
+ gLocaleCache[eCHINA] = Locale("zh", "CN");
+ gLocaleCache[eTAIWAN] = Locale("zh", "TW");
+ gLocaleCache[eUK] = Locale("en", "GB");
+ gLocaleCache[eUS] = Locale("en", "US");
+ gLocaleCache[eCANADA] = Locale("en", "CA");
+ gLocaleCache[eCANADA_FRENCH] = Locale("fr", "CA");
+}
+
+U_CDECL_END
+
+U_NAMESPACE_BEGIN
+
+Locale *locale_set_default_internal(const char *id, UErrorCode& status) {
+ // Synchronize this entire function.
+ Mutex lock(&gDefaultLocaleMutex);
+
+ UBool canonicalize = FALSE;
+
+ // If given a NULL string for the locale id, grab the default
+ // name from the system.
+ // (Different from most other locale APIs, where a null name means use
+ // the current ICU default locale.)
+ if (id == NULL) {
+ id = uprv_getDefaultLocaleID(); // This function not thread safe? TODO: verify.
+ canonicalize = TRUE; // always canonicalize host ID
+ }
+
+ CharString localeNameBuf;
+ {
+ CharStringByteSink sink(&localeNameBuf);
+ if (canonicalize) {
+ ulocimp_canonicalize(id, sink, &status);
+ } else {
+ ulocimp_getName(id, sink, &status);
+ }
+ }
+
+ if (U_FAILURE(status)) {
+ return gDefaultLocale;
+ }
+
+ if (gDefaultLocalesHashT == NULL) {
+ gDefaultLocalesHashT = uhash_open(uhash_hashChars, uhash_compareChars, NULL, &status);
+ if (U_FAILURE(status)) {
+ return gDefaultLocale;
+ }
+ uhash_setValueDeleter(gDefaultLocalesHashT, deleteLocale);
+ ucln_common_registerCleanup(UCLN_COMMON_LOCALE, locale_cleanup);
+ }
+
+ Locale *newDefault = (Locale *)uhash_get(gDefaultLocalesHashT, localeNameBuf.data());
+ if (newDefault == NULL) {
+ newDefault = new Locale(Locale::eBOGUS);
+ if (newDefault == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return gDefaultLocale;
+ }
+ newDefault->init(localeNameBuf.data(), FALSE);
+ uhash_put(gDefaultLocalesHashT, (char*) newDefault->getName(), newDefault, &status);
+ if (U_FAILURE(status)) {
+ return gDefaultLocale;
+ }
+ }
+ gDefaultLocale = newDefault;
+ return gDefaultLocale;
+}
+
+U_NAMESPACE_END
+
+/* sfb 07/21/99 */
+U_CFUNC void
+locale_set_default(const char *id)
+{
+ U_NAMESPACE_USE
+ UErrorCode status = U_ZERO_ERROR;
+ locale_set_default_internal(id, status);
+}
+/* end */
+
+U_CFUNC const char *
+locale_get_default(void)
+{
+ U_NAMESPACE_USE
+ return Locale::getDefault().getName();
+}
+
+
+U_NAMESPACE_BEGIN
+
+UOBJECT_DEFINE_RTTI_IMPLEMENTATION(Locale)
+
+/*Character separating the posix id fields*/
+// '_'
+// In the platform codepage.
+#define SEP_CHAR '_'
+#define NULL_CHAR '\0'
+
+Locale::~Locale()
+{
+ if (baseName != fullName) {
+ uprv_free(baseName);
+ }
+ baseName = NULL;
+ /*if fullName is on the heap, we free it*/
+ if (fullName != fullNameBuffer)
+ {
+ uprv_free(fullName);
+ fullName = NULL;
+ }
+}
+
+Locale::Locale()
+ : UObject(), fullName(fullNameBuffer), baseName(NULL)
+{
+ init(NULL, FALSE);
+}
+
+/*
+ * Internal constructor to allow construction of a locale object with
+ * NO side effects. (Default constructor tries to get
+ * the default locale.)
+ */
+Locale::Locale(Locale::ELocaleType)
+ : UObject(), fullName(fullNameBuffer), baseName(NULL)
+{
+ setToBogus();
+}
+
+
+Locale::Locale( const char * newLanguage,
+ const char * newCountry,
+ const char * newVariant,
+ const char * newKeywords)
+ : UObject(), fullName(fullNameBuffer), baseName(NULL)
+{
+ if( (newLanguage==NULL) && (newCountry == NULL) && (newVariant == NULL) )
+ {
+ init(NULL, FALSE); /* shortcut */
+ }
+ else
+ {
+ UErrorCode status = U_ZERO_ERROR;
+ int32_t size = 0;
+ int32_t lsize = 0;
+ int32_t csize = 0;
+ int32_t vsize = 0;
+ int32_t ksize = 0;
+
+ // Calculate the size of the resulting string.
+
+ // Language
+ if ( newLanguage != NULL )
+ {
+ lsize = (int32_t)uprv_strlen(newLanguage);
+ if ( lsize < 0 || lsize > ULOC_STRING_LIMIT ) { // int32 wrap
+ setToBogus();
+ return;
+ }
+ size = lsize;
+ }
+
+ CharString togo(newLanguage, lsize, status); // start with newLanguage
+
+ // _Country
+ if ( newCountry != NULL )
+ {
+ csize = (int32_t)uprv_strlen(newCountry);
+ if ( csize < 0 || csize > ULOC_STRING_LIMIT ) { // int32 wrap
+ setToBogus();
+ return;
+ }
+ size += csize;
+ }
+
+ // _Variant
+ if ( newVariant != NULL )
+ {
+ // remove leading _'s
+ while(newVariant[0] == SEP_CHAR)
+ {
+ newVariant++;
+ }
+
+ // remove trailing _'s
+ vsize = (int32_t)uprv_strlen(newVariant);
+ if ( vsize < 0 || vsize > ULOC_STRING_LIMIT ) { // int32 wrap
+ setToBogus();
+ return;
+ }
+ while( (vsize>1) && (newVariant[vsize-1] == SEP_CHAR) )
+ {
+ vsize--;
+ }
+ }
+
+ if( vsize > 0 )
+ {
+ size += vsize;
+ }
+
+ // Separator rules:
+ if ( vsize > 0 )
+ {
+ size += 2; // at least: __v
+ }
+ else if ( csize > 0 )
+ {
+ size += 1; // at least: _v
+ }
+
+ if ( newKeywords != NULL)
+ {
+ ksize = (int32_t)uprv_strlen(newKeywords);
+ if ( ksize < 0 || ksize > ULOC_STRING_LIMIT ) {
+ setToBogus();
+ return;
+ }
+ size += ksize + 1;
+ }
+
+ // NOW we have the full locale string..
+ // Now, copy it back.
+
+ // newLanguage is already copied
+
+ if ( ( vsize != 0 ) || (csize != 0) ) // at least: __v
+ { // ^
+ togo.append(SEP_CHAR, status);
+ }
+
+ if ( csize != 0 )
+ {
+ togo.append(newCountry, status);
+ }
+
+ if ( vsize != 0)
+ {
+ togo.append(SEP_CHAR, status)
+ .append(newVariant, vsize, status);
+ }
+
+ if ( ksize != 0)
+ {
+ if (uprv_strchr(newKeywords, '=')) {
+ togo.append('@', status); /* keyword parsing */
+ }
+ else {
+ togo.append('_', status); /* Variant parsing with a script */
+ if ( vsize == 0) {
+ togo.append('_', status); /* No country found */
+ }
+ }
+ togo.append(newKeywords, status);
+ }
+
+ if (U_FAILURE(status)) {
+ // Something went wrong with appending, etc.
+ setToBogus();
+ return;
+ }
+ // Parse it, because for example 'language' might really be a complete
+ // string.
+ init(togo.data(), FALSE);
+ }
+}
+
+Locale::Locale(const Locale &other)
+ : UObject(other), fullName(fullNameBuffer), baseName(NULL)
+{
+ *this = other;
+}
+
+Locale::Locale(Locale&& other) U_NOEXCEPT
+ : UObject(other), fullName(fullNameBuffer), baseName(fullName) {
+ *this = std::move(other);
+}
+
+Locale& Locale::operator=(const Locale& other) {
+ if (this == &other) {
+ return *this;
+ }
+
+ setToBogus();
+
+ if (other.fullName == other.fullNameBuffer) {
+ uprv_strcpy(fullNameBuffer, other.fullNameBuffer);
+ } else if (other.fullName == nullptr) {
+ fullName = nullptr;
+ } else {
+ fullName = uprv_strdup(other.fullName);
+ if (fullName == nullptr) return *this;
+ }
+
+ if (other.baseName == other.fullName) {
+ baseName = fullName;
+ } else if (other.baseName != nullptr) {
+ baseName = uprv_strdup(other.baseName);
+ if (baseName == nullptr) return *this;
+ }
+
+ uprv_strcpy(language, other.language);
+ uprv_strcpy(script, other.script);
+ uprv_strcpy(country, other.country);
+
+ variantBegin = other.variantBegin;
+ fIsBogus = other.fIsBogus;
+
+ return *this;
+}
+
+Locale& Locale::operator=(Locale&& other) U_NOEXCEPT {
+ if (baseName != fullName) uprv_free(baseName);
+ if (fullName != fullNameBuffer) uprv_free(fullName);
+
+ if (other.fullName == other.fullNameBuffer) {
+ uprv_strcpy(fullNameBuffer, other.fullNameBuffer);
+ fullName = fullNameBuffer;
+ } else {
+ fullName = other.fullName;
+ }
+
+ if (other.baseName == other.fullName) {
+ baseName = fullName;
+ } else {
+ baseName = other.baseName;
+ }
+
+ uprv_strcpy(language, other.language);
+ uprv_strcpy(script, other.script);
+ uprv_strcpy(country, other.country);
+
+ variantBegin = other.variantBegin;
+ fIsBogus = other.fIsBogus;
+
+ other.baseName = other.fullName = other.fullNameBuffer;
+
+ return *this;
+}
+
+Locale *
+Locale::clone() const {
+ return new Locale(*this);
+}
+
+UBool
+Locale::operator==( const Locale& other) const
+{
+ return (uprv_strcmp(other.fullName, fullName) == 0);
+}
+
+namespace {
+
+UInitOnce gKnownCanonicalizedInitOnce = U_INITONCE_INITIALIZER;
+UHashtable *gKnownCanonicalized = nullptr;
+
+static const char* const KNOWN_CANONICALIZED[] = {
+ "c",
+ // Commonly used locales known are already canonicalized
+ "af", "af_ZA", "am", "am_ET", "ar", "ar_001", "as", "as_IN", "az", "az_AZ",
+ "be", "be_BY", "bg", "bg_BG", "bn", "bn_IN", "bs", "bs_BA", "ca", "ca_ES",
+ "cs", "cs_CZ", "cy", "cy_GB", "da", "da_DK", "de", "de_DE", "el", "el_GR",
+ "en", "en_GB", "en_US", "es", "es_419", "es_ES", "et", "et_EE", "eu",
+ "eu_ES", "fa", "fa_IR", "fi", "fi_FI", "fil", "fil_PH", "fr", "fr_FR",
+ "ga", "ga_IE", "gl", "gl_ES", "gu", "gu_IN", "he", "he_IL", "hi", "hi_IN",
+ "hr", "hr_HR", "hu", "hu_HU", "hy", "hy_AM", "id", "id_ID", "is", "is_IS",
+ "it", "it_IT", "ja", "ja_JP", "jv", "jv_ID", "ka", "ka_GE", "kk", "kk_KZ",
+ "km", "km_KH", "kn", "kn_IN", "ko", "ko_KR", "ky", "ky_KG", "lo", "lo_LA",
+ "lt", "lt_LT", "lv", "lv_LV", "mk", "mk_MK", "ml", "ml_IN", "mn", "mn_MN",
+ "mr", "mr_IN", "ms", "ms_MY", "my", "my_MM", "nb", "nb_NO", "ne", "ne_NP",
+ "nl", "nl_NL", "or", "or_IN", "pa", "pa_IN", "pl", "pl_PL", "ps", "ps_AF",
+ "pt", "pt_BR", "pt_PT", "ro", "ro_RO", "ru", "ru_RU", "sd", "sd_IN", "si",
+ "si_LK", "sk", "sk_SK", "sl", "sl_SI", "so", "so_SO", "sq", "sq_AL", "sr",
+ "sr_Cyrl_RS", "sr_Latn", "sr_RS", "sv", "sv_SE", "sw", "sw_TZ", "ta",
+ "ta_IN", "te", "te_IN", "th", "th_TH", "tk", "tk_TM", "tr", "tr_TR", "uk",
+ "uk_UA", "ur", "ur_PK", "uz", "uz_UZ", "vi", "vi_VN", "yue", "yue_Hant",
+ "yue_Hant_HK", "yue_HK", "zh", "zh_CN", "zh_Hans", "zh_Hans_CN", "zh_Hant",
+ "zh_Hant_TW", "zh_TW", "zu", "zu_ZA"
+};
+
+static UBool U_CALLCONV cleanupKnownCanonicalized() {
+ gKnownCanonicalizedInitOnce.reset();
+ if (gKnownCanonicalized) { uhash_close(gKnownCanonicalized); }
+ return TRUE;
+}
+
+static void U_CALLCONV loadKnownCanonicalized(UErrorCode &status) {
+ ucln_common_registerCleanup(UCLN_COMMON_LOCALE_KNOWN_CANONICALIZED,
+ cleanupKnownCanonicalized);
+ LocalUHashtablePointer newKnownCanonicalizedMap(
+ uhash_open(uhash_hashChars, uhash_compareChars, nullptr, &status));
+ for (int32_t i = 0;
+ U_SUCCESS(status) && i < UPRV_LENGTHOF(KNOWN_CANONICALIZED);
+ i++) {
+ uhash_puti(newKnownCanonicalizedMap.getAlias(),
+ (void*)KNOWN_CANONICALIZED[i],
+ 1, &status);
+ }
+ if (U_FAILURE(status)) {
+ return;
+ }
+
+ gKnownCanonicalized = newKnownCanonicalizedMap.orphan();
+}
+
+class AliasData;
+
+/**
+ * A Builder class to build the alias data.
+ */
+class AliasDataBuilder {
+public:
+ AliasDataBuilder() {
+ }
+
+ // Build the AliasData from resource.
+ AliasData* build(UErrorCode &status);
+
+private:
+ void readAlias(UResourceBundle* alias,
+ UniqueCharStrings* strings,
+ LocalMemory<const char*>& types,
+ LocalMemory<int32_t>& replacementIndexes,
+ int32_t &length,
+ void (*checkType)(const char* type),
+ void (*checkReplacement)(const UnicodeString& replacement),
+ UErrorCode &status);
+
+ // Read the languageAlias data from alias to
+ // strings+types+replacementIndexes
+ // The number of record will be stored into length.
+ // Allocate length items for types, to store the type field.
+ // Allocate length items for replacementIndexes,
+ // to store the index in the strings for the replacement script.
+ void readLanguageAlias(UResourceBundle* alias,
+ UniqueCharStrings* strings,
+ LocalMemory<const char*>& types,
+ LocalMemory<int32_t>& replacementIndexes,
+ int32_t &length,
+ UErrorCode &status);
+
+ // Read the scriptAlias data from alias to
+ // strings+types+replacementIndexes
+ // Allocate length items for types, to store the type field.
+ // Allocate length items for replacementIndexes,
+ // to store the index in the strings for the replacement script.
+ void readScriptAlias(UResourceBundle* alias,
+ UniqueCharStrings* strings,
+ LocalMemory<const char*>& types,
+ LocalMemory<int32_t>& replacementIndexes,
+ int32_t &length, UErrorCode &status);
+
+ // Read the territoryAlias data from alias to
+ // strings+types+replacementIndexes
+ // Allocate length items for types, to store the type field.
+ // Allocate length items for replacementIndexes,
+ // to store the index in the strings for the replacement script.
+ void readTerritoryAlias(UResourceBundle* alias,
+ UniqueCharStrings* strings,
+ LocalMemory<const char*>& types,
+ LocalMemory<int32_t>& replacementIndexes,
+ int32_t &length, UErrorCode &status);
+
+ // Read the variantAlias data from alias to
+ // strings+types+replacementIndexes
+ // Allocate length items for types, to store the type field.
+ // Allocate length items for replacementIndexes,
+ // to store the index in the strings for the replacement variant.
+ void readVariantAlias(UResourceBundle* alias,
+ UniqueCharStrings* strings,
+ LocalMemory<const char*>& types,
+ LocalMemory<int32_t>& replacementIndexes,
+ int32_t &length, UErrorCode &status);
+};
+
+/**
+ * A class to hold the Alias Data.
+ */
+class AliasData : public UMemory {
+public:
+ static const AliasData* singleton(UErrorCode& status) {
+ if (U_FAILURE(status)) {
+ // Do not get into loadData if the status already has error.
+ return nullptr;
+ }
+ umtx_initOnce(AliasData::gInitOnce, &AliasData::loadData, status);
+ return gSingleton;
+ }
+
+ const CharStringMap& languageMap() const { return language; }
+ const CharStringMap& scriptMap() const { return script; }
+ const CharStringMap& territoryMap() const { return territory; }
+ const CharStringMap& variantMap() const { return variant; }
+
+ static void U_CALLCONV loadData(UErrorCode &status);
+ static UBool U_CALLCONV cleanup();
+
+ static UInitOnce gInitOnce;
+
+private:
+ AliasData(CharStringMap languageMap,
+ CharStringMap scriptMap,
+ CharStringMap territoryMap,
+ CharStringMap variantMap,
+ CharString* strings)
+ : language(std::move(languageMap)),
+ script(std::move(scriptMap)),
+ territory(std::move(territoryMap)),
+ variant(std::move(variantMap)),
+ strings(strings) {
+ }
+
+ ~AliasData() {
+ delete strings;
+ }
+
+ static const AliasData* gSingleton;
+
+ CharStringMap language;
+ CharStringMap script;
+ CharStringMap territory;
+ CharStringMap variant;
+ CharString* strings;
+
+ friend class AliasDataBuilder;
+};
+
+
+const AliasData* AliasData::gSingleton = nullptr;
+UInitOnce AliasData::gInitOnce = U_INITONCE_INITIALIZER;
+
+UBool U_CALLCONV
+AliasData::cleanup()
+{
+ gInitOnce.reset();
+ delete gSingleton;
+ return TRUE;
+}
+
+void
+AliasDataBuilder::readAlias(
+ UResourceBundle* alias,
+ UniqueCharStrings* strings,
+ LocalMemory<const char*>& types,
+ LocalMemory<int32_t>& replacementIndexes,
+ int32_t &length,
+ void (*checkType)(const char* type),
+ void (*checkReplacement)(const UnicodeString& replacement),
+ UErrorCode &status) {
+ if (U_FAILURE(status)) {
+ return;
+ }
+ length = ures_getSize(alias);
+ const char** rawTypes = types.allocateInsteadAndCopy(length);
+ if (rawTypes == nullptr) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+ int32_t* rawIndexes = replacementIndexes.allocateInsteadAndCopy(length);
+ if (rawIndexes == nullptr) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+ int i = 0;
+ while (ures_hasNext(alias)) {
+ LocalUResourceBundlePointer res(
+ ures_getNextResource(alias, nullptr, &status));
+ const char* aliasFrom = ures_getKey(res.getAlias());
+ UnicodeString aliasTo =
+ ures_getUnicodeStringByKey(res.getAlias(), "replacement", &status);
+
+ checkType(aliasFrom);
+ checkReplacement(aliasTo);
+
+ rawTypes[i] = aliasFrom;
+ rawIndexes[i] = strings->add(aliasTo, status);
+ i++;
+ }
+}
+
+/**
+ * Read the languageAlias data from alias to strings+types+replacementIndexes.
+ * Allocate length items for types, to store the type field. Allocate length
+ * items for replacementIndexes, to store the index in the strings for the
+ * replacement language.
+ */
+void
+AliasDataBuilder::readLanguageAlias(
+ UResourceBundle* alias,
+ UniqueCharStrings* strings,
+ LocalMemory<const char*>& types,
+ LocalMemory<int32_t>& replacementIndexes,
+ int32_t &length,
+ UErrorCode &status)
+{
+ return readAlias(
+ alias, strings, types, replacementIndexes, length,
+#if U_DEBUG
+ [](const char* type) {
+ // Assert the aliasFrom only contains the following possibilties
+ // language_REGION_variant
+ // language_REGION
+ // language_variant
+ // language
+ // und_variant
+ Locale test(type);
+ // Assert no script in aliasFrom
+ U_ASSERT(test.getScript()[0] == '\0');
+ // Assert when language is und, no REGION in aliasFrom.
+ U_ASSERT(test.getLanguage()[0] != '\0' || test.getCountry()[0] == '\0');
+ },
+#else
+ [](const char*) {},
+#endif
+ [](const UnicodeString&) {}, status);
+}
+
+/**
+ * Read the scriptAlias data from alias to strings+types+replacementIndexes.
+ * Allocate length items for types, to store the type field. Allocate length
+ * items for replacementIndexes, to store the index in the strings for the
+ * replacement script.
+ */
+void
+AliasDataBuilder::readScriptAlias(
+ UResourceBundle* alias,
+ UniqueCharStrings* strings,
+ LocalMemory<const char*>& types,
+ LocalMemory<int32_t>& replacementIndexes,
+ int32_t &length,
+ UErrorCode &status)
+{
+ return readAlias(
+ alias, strings, types, replacementIndexes, length,
+#if U_DEBUG
+ [](const char* type) {
+ U_ASSERT(uprv_strlen(type) == 4);
+ },
+ [](const UnicodeString& replacement) {
+ U_ASSERT(replacement.length() == 4);
+ },
+#else
+ [](const char*) {},
+ [](const UnicodeString&) { },
+#endif
+ status);
+}
+
+/**
+ * Read the territoryAlias data from alias to strings+types+replacementIndexes.
+ * Allocate length items for types, to store the type field. Allocate length
+ * items for replacementIndexes, to store the index in the strings for the
+ * replacement regions.
+ */
+void
+AliasDataBuilder::readTerritoryAlias(
+ UResourceBundle* alias,
+ UniqueCharStrings* strings,
+ LocalMemory<const char*>& types,
+ LocalMemory<int32_t>& replacementIndexes,
+ int32_t &length,
+ UErrorCode &status)
+{
+ return readAlias(
+ alias, strings, types, replacementIndexes, length,
+#if U_DEBUG
+ [](const char* type) {
+ U_ASSERT(uprv_strlen(type) == 2 || uprv_strlen(type) == 3);
+ },
+#else
+ [](const char*) {},
+#endif
+ [](const UnicodeString&) { },
+ status);
+}
+
+/**
+ * Read the variantAlias data from alias to strings+types+replacementIndexes.
+ * Allocate length items for types, to store the type field. Allocate length
+ * items for replacementIndexes, to store the index in the strings for the
+ * replacement variant.
+ */
+void
+AliasDataBuilder::readVariantAlias(
+ UResourceBundle* alias,
+ UniqueCharStrings* strings,
+ LocalMemory<const char*>& types,
+ LocalMemory<int32_t>& replacementIndexes,
+ int32_t &length,
+ UErrorCode &status)
+{
+ return readAlias(
+ alias, strings, types, replacementIndexes, length,
+#if U_DEBUG
+ [](const char* type) {
+ U_ASSERT(uprv_strlen(type) >= 4 && uprv_strlen(type) <= 8);
+ U_ASSERT(uprv_strlen(type) != 4 ||
+ (type[0] >= '0' && type[0] <= '9'));
+ },
+ [](const UnicodeString& replacement) {
+ U_ASSERT(replacement.length() >= 4 && replacement.length() <= 8);
+ U_ASSERT(replacement.length() != 4 ||
+ (replacement.charAt(0) >= u'0' &&
+ replacement.charAt(0) <= u'9'));
+ },
+#else
+ [](const char*) {},
+ [](const UnicodeString&) { },
+#endif
+ status);
+}
+
+/**
+ * Initializes the alias data from the ICU resource bundles. The alias data
+ * contains alias of language, country, script and variants.
+ *
+ * If the alias data has already loaded, then this method simply returns without
+ * doing anything meaningful.
+ */
+void U_CALLCONV
+AliasData::loadData(UErrorCode &status)
+{
+#ifdef LOCALE_CANONICALIZATION_DEBUG
+ UDate start = uprv_getRawUTCtime();
+#endif // LOCALE_CANONICALIZATION_DEBUG
+ ucln_common_registerCleanup(UCLN_COMMON_LOCALE_ALIAS, cleanup);
+ AliasDataBuilder builder;
+ gSingleton = builder.build(status);
+#ifdef LOCALE_CANONICALIZATION_DEBUG
+ UDate end = uprv_getRawUTCtime();
+ printf("AliasData::loadData took total %f ms\n", end - start);
+#endif // LOCALE_CANONICALIZATION_DEBUG
+}
+
+/**
+ * Build the alias data from resources.
+ */
+AliasData*
+AliasDataBuilder::build(UErrorCode &status) {
+ LocalUResourceBundlePointer metadata(
+ ures_openDirect(nullptr, "metadata", &status));
+ LocalUResourceBundlePointer metadataAlias(
+ ures_getByKey(metadata.getAlias(), "alias", nullptr, &status));
+ LocalUResourceBundlePointer languageAlias(
+ ures_getByKey(metadataAlias.getAlias(), "language", nullptr, &status));
+ LocalUResourceBundlePointer scriptAlias(
+ ures_getByKey(metadataAlias.getAlias(), "script", nullptr, &status));
+ LocalUResourceBundlePointer territoryAlias(
+ ures_getByKey(metadataAlias.getAlias(), "territory", nullptr, &status));
+ LocalUResourceBundlePointer variantAlias(
+ ures_getByKey(metadataAlias.getAlias(), "variant", nullptr, &status));
+
+ if (U_FAILURE(status)) {
+ return nullptr;
+ }
+ int32_t languagesLength = 0, scriptLength = 0, territoryLength = 0,
+ variantLength = 0;
+
+ // Read the languageAlias into languageTypes, languageReplacementIndexes
+ // and strings
+ UniqueCharStrings strings(status);
+ LocalMemory<const char*> languageTypes;
+ LocalMemory<int32_t> languageReplacementIndexes;
+ readLanguageAlias(languageAlias.getAlias(),
+ &strings,
+ languageTypes,
+ languageReplacementIndexes,
+ languagesLength,
+ status);
+
+ // Read the scriptAlias into scriptTypes, scriptReplacementIndexes
+ // and strings
+ LocalMemory<const char*> scriptTypes;
+ LocalMemory<int32_t> scriptReplacementIndexes;
+ readScriptAlias(scriptAlias.getAlias(),
+ &strings,
+ scriptTypes,
+ scriptReplacementIndexes,
+ scriptLength,
+ status);
+
+ // Read the territoryAlias into territoryTypes, territoryReplacementIndexes
+ // and strings
+ LocalMemory<const char*> territoryTypes;
+ LocalMemory<int32_t> territoryReplacementIndexes;
+ readTerritoryAlias(territoryAlias.getAlias(),
+ &strings,
+ territoryTypes,
+ territoryReplacementIndexes,
+ territoryLength, status);
+
+ // Read the variantAlias into variantTypes, variantReplacementIndexes
+ // and strings
+ LocalMemory<const char*> variantTypes;
+ LocalMemory<int32_t> variantReplacementIndexes;
+ readVariantAlias(variantAlias.getAlias(),
+ &strings,
+ variantTypes,
+ variantReplacementIndexes,
+ variantLength, status);
+
+ if (U_FAILURE(status)) {
+ return nullptr;
+ }
+
+ // We can only use strings after freeze it.
+ strings.freeze();
+
+ // Build the languageMap from languageTypes & languageReplacementIndexes
+ CharStringMap languageMap(490, status);
+ for (int32_t i = 0; U_SUCCESS(status) && i < languagesLength; i++) {
+ languageMap.put(languageTypes[i],
+ strings.get(languageReplacementIndexes[i]),
+ status);
+ }
+
+ // Build the scriptMap from scriptTypes & scriptReplacementIndexes
+ CharStringMap scriptMap(1, status);
+ for (int32_t i = 0; U_SUCCESS(status) && i < scriptLength; i++) {
+ scriptMap.put(scriptTypes[i],
+ strings.get(scriptReplacementIndexes[i]),
+ status);
+ }
+
+ // Build the territoryMap from territoryTypes & territoryReplacementIndexes
+ CharStringMap territoryMap(650, status);
+ for (int32_t i = 0; U_SUCCESS(status) && i < territoryLength; i++) {
+ territoryMap.put(territoryTypes[i],
+ strings.get(territoryReplacementIndexes[i]),
+ status);
+ }
+
+ // Build the variantMap from variantTypes & variantReplacementIndexes.
+ CharStringMap variantMap(2, status);
+ for (int32_t i = 0; U_SUCCESS(status) && i < variantLength; i++) {
+ variantMap.put(variantTypes[i],
+ strings.get(variantReplacementIndexes[i]),
+ status);
+ }
+
+ if (U_FAILURE(status)) {
+ return nullptr;
+ }
+
+ // copy hashtables
+ auto *data = new AliasData(
+ std::move(languageMap),
+ std::move(scriptMap),
+ std::move(territoryMap),
+ std::move(variantMap),
+ strings.orphanCharStrings());
+
+ if (data == nullptr) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ }
+ return data;
+}
+
+/**
+ * A class that find the replacement values of locale fields by using AliasData.
+ */
+class AliasReplacer {
+public:
+ AliasReplacer(UErrorCode status) :
+ language(nullptr), script(nullptr), region(nullptr),
+ extensions(nullptr), variants(status),
+ data(nullptr) {
+ }
+ ~AliasReplacer() {
+ }
+
+ // Check the fields inside locale, if need to replace fields,
+ // place the the replaced locale ID in out and return true.
+ // Otherwise return false for no replacement or error.
+ bool replace(
+ const Locale& locale, CharString& out, UErrorCode status);
+
+private:
+ const char* language;
+ const char* script;
+ const char* region;
+ const char* extensions;
+ UVector variants;
+
+ const AliasData* data;
+
+ inline bool notEmpty(const char* str) {
+ return str && str[0] != NULL_CHAR;
+ }
+
+ /**
+ * If replacement is neither null nor empty and input is either null or empty,
+ * return replacement.
+ * If replacement is neither null nor empty but input is not empty, return input.
+ * If replacement is either null or empty and type is either null or empty,
+ * return input.
+ * Otherwise return null.
+ * replacement input type return
+ * AAA nullptr * AAA
+ * AAA BBB * BBB
+ * nullptr || "" CCC nullptr CCC
+ * nullptr || "" * DDD nullptr
+ */
+ inline const char* deleteOrReplace(
+ const char* input, const char* type, const char* replacement) {
+ return notEmpty(replacement) ?
+ ((input == nullptr) ? replacement : input) :
+ ((type == nullptr) ? input : nullptr);
+ }
+
+ inline bool same(const char* a, const char* b) {
+ if (a == nullptr && b == nullptr) {
+ return true;
+ }
+ if ((a == nullptr && b != nullptr) ||
+ (a != nullptr && b == nullptr)) {
+ return false;
+ }
+ return uprv_strcmp(a, b) == 0;
+ }
+
+ // Gather fields and generate locale ID into out.
+ CharString& outputToString(CharString& out, UErrorCode status);
+
+ // Generate the lookup key.
+ CharString& generateKey(const char* language, const char* region,
+ const char* variant, CharString& out,
+ UErrorCode status);
+
+ void parseLanguageReplacement(const char* replacement,
+ const char*& replaceLanguage,
+ const char*& replaceScript,
+ const char*& replaceRegion,
+ const char*& replaceVariant,
+ const char*& replaceExtensions,
+ UVector& toBeFreed,
+ UErrorCode& status);
+
+ // Replace by using languageAlias.
+ bool replaceLanguage(bool checkLanguage, bool checkRegion,
+ bool checkVariants, UVector& toBeFreed,
+ UErrorCode& status);
+
+ // Replace by using territoryAlias.
+ bool replaceTerritory(UVector& toBeFreed, UErrorCode& status);
+
+ // Replace by using scriptAlias.
+ bool replaceScript(UErrorCode& status);
+
+ // Replace by using variantAlias.
+ bool replaceVariant(UErrorCode& status);
+};
+
+CharString&
+AliasReplacer::generateKey(
+ const char* language, const char* region, const char* variant,
+ CharString& out, UErrorCode status)
+{
+ out.append(language, status);
+ if (notEmpty(region)) {
+ out.append(SEP_CHAR, status)
+ .append(region, status);
+ }
+ if (notEmpty(variant)) {
+ out.append(SEP_CHAR, status)
+ .append(variant, status);
+ }
+ return out;
+}
+
+void
+AliasReplacer::parseLanguageReplacement(
+ const char* replacement,
+ const char*& replacedLanguage,
+ const char*& replacedScript,
+ const char*& replacedRegion,
+ const char*& replacedVariant,
+ const char*& replacedExtensions,
+ UVector& toBeFreed,
+ UErrorCode& status)
+{
+ if (U_FAILURE(status)) {
+ return;
+ }
+ replacedScript = replacedRegion = replacedVariant
+ = replacedExtensions = nullptr;
+ if (uprv_strchr(replacement, '_') == nullptr) {
+ replacedLanguage = replacement;
+ // reach the end, just return it.
+ return;
+ }
+ // We have multiple field so we have to allocate and parse
+ CharString* str = new CharString(
+ replacement, (int32_t)uprv_strlen(replacement), status);
+ if (U_FAILURE(status)) {
+ return;
+ }
+ if (str == nullptr) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+ toBeFreed.addElement(str, status);
+ char* data = str->data();
+ replacedLanguage = (const char*) data;
+ char* endOfField = uprv_strchr(data, '_');
+ *endOfField = '\0'; // null terminiate it.
+ endOfField++;
+ const char* start = endOfField;
+ endOfField = (char*) uprv_strchr(start, '_');
+ size_t len = 0;
+ if (endOfField == nullptr) {
+ len = uprv_strlen(start);
+ } else {
+ len = endOfField - start;
+ *endOfField = '\0'; // null terminiate it.
+ }
+ if (len == 4 && uprv_isASCIILetter(*start)) {
+ // Got a script
+ replacedScript = start;
+ if (endOfField == nullptr) {
+ return;
+ }
+ start = endOfField++;
+ endOfField = (char*)uprv_strchr(start, '_');
+ if (endOfField == nullptr) {
+ len = uprv_strlen(start);
+ } else {
+ len = endOfField - start;
+ *endOfField = '\0'; // null terminiate it.
+ }
+ }
+ if (len >= 2 && len <= 3) {
+ // Got a region
+ replacedRegion = start;
+ if (endOfField == nullptr) {
+ return;
+ }
+ start = endOfField++;
+ endOfField = (char*)uprv_strchr(start, '_');
+ if (endOfField == nullptr) {
+ len = uprv_strlen(start);
+ } else {
+ len = endOfField - start;
+ *endOfField = '\0'; // null terminiate it.
+ }
+ }
+ if (len >= 4) {
+ // Got a variant
+ replacedVariant = start;
+ if (endOfField == nullptr) {
+ return;
+ }
+ start = endOfField++;
+ }
+ replacedExtensions = start;
+}
+
+bool
+AliasReplacer::replaceLanguage(
+ bool checkLanguage, bool checkRegion,
+ bool checkVariants, UVector& toBeFreed, UErrorCode& status)
+{
+ if (U_FAILURE(status)) {
+ return false;
+ }
+ if ( (checkRegion && region == nullptr) ||
+ (checkVariants && variants.size() == 0)) {
+ // Nothing to search.
+ return false;
+ }
+ int32_t variant_size = checkVariants ? variants.size() : 1;
+ // Since we may have more than one variant, we need to loop through them.
+ const char* searchLanguage = checkLanguage ? language : "und";
+ const char* searchRegion = checkRegion ? region : nullptr;
+ const char* searchVariant = nullptr;
+ for (int32_t variant_index = 0;
+ variant_index < variant_size;
+ variant_index++) {
+ if (checkVariants) {
+ U_ASSERT(variant_index < variant_size);
+ searchVariant = (const char*)(variants.elementAt(variant_index));
+ }
+
+ if (searchVariant != nullptr && uprv_strlen(searchVariant) < 4) {
+ // Do not consider ill-formed variant subtag.
+ searchVariant = nullptr;
+ }
+ CharString typeKey;
+ generateKey(searchLanguage, searchRegion, searchVariant, typeKey,
+ status);
+ if (U_FAILURE(status)) {
+ return false;
+ }
+ const char *replacement = data->languageMap().get(typeKey.data());
+ if (replacement == nullptr) {
+ // Found no replacement data.
+ continue;
+ }
+
+ const char* replacedLanguage = nullptr;
+ const char* replacedScript = nullptr;
+ const char* replacedRegion = nullptr;
+ const char* replacedVariant = nullptr;
+ const char* replacedExtensions = nullptr;
+ parseLanguageReplacement(replacement,
+ replacedLanguage,
+ replacedScript,
+ replacedRegion,
+ replacedVariant,
+ replacedExtensions,
+ toBeFreed,
+ status);
+ replacedLanguage =
+ (replacedLanguage != nullptr && uprv_strcmp(replacedLanguage, "und") == 0) ?
+ language : replacedLanguage;
+ replacedScript = deleteOrReplace(script, nullptr, replacedScript);
+ replacedRegion = deleteOrReplace(region, searchRegion, replacedRegion);
+ replacedVariant = deleteOrReplace(
+ searchVariant, searchVariant, replacedVariant);
+
+ if ( same(language, replacedLanguage) &&
+ same(script, replacedScript) &&
+ same(region, replacedRegion) &&
+ same(searchVariant, replacedVariant) &&
+ replacedExtensions == nullptr) {
+ // Replacement produce no changes.
+ continue;
+ }
+
+ language = replacedLanguage;
+ region = replacedRegion;
+ script = replacedScript;
+ if (searchVariant != nullptr) {
+ if (notEmpty(replacedVariant)) {
+ variants.setElementAt((void*)replacedVariant, variant_index);
+ } else {
+ variants.removeElementAt(variant_index);
+ }
+ }
+ if (replacedExtensions != nullptr) {
+ // TODO(ICU-21292)
+ // DO NOTHING
+ // UTS35 does not specifiy what should we do if we have extensions in the
+ // replacement. Currently we know only the following 4 "BCP47 LegacyRules" have
+ // extensions in them languageAlias:
+ // i_default => en_x_i_default
+ // i_enochian => und_x_i_enochian
+ // i_mingo => see_x_i_mingo
+ // zh_min => nan_x_zh_min
+ // But all of them are already changed by code inside ultag_parse() before
+ // hitting this code.
+ }
+
+ // Something changed by language alias data.
+ return true;
+ }
+ // Nothing changed by language alias data.
+ return false;
+}
+
+bool
+AliasReplacer::replaceTerritory(UVector& toBeFreed, UErrorCode& status)
+{
+ if (U_FAILURE(status)) {
+ return false;
+ }
+ if (region == nullptr) {
+ // No region to search.
+ return false;
+ }
+ const char *replacement = data->territoryMap().get(region);
+ if (replacement == nullptr) {
+ // Found no replacement data for this region.
+ return false;
+ }
+ const char* replacedRegion = replacement;
+ const char* firstSpace = uprv_strchr(replacement, ' ');
+ if (firstSpace != nullptr) {
+ // If there are are more than one region in the replacement.
+ // We need to check which one match based on the language.
+ // Cannot use nullptr for language because that will construct
+ // the default locale, in that case, use "und" to get the correct
+ // locale.
+ Locale l(language == nullptr ? "und" : language, nullptr, script);
+ l.addLikelySubtags(status);
+ const char* likelyRegion = l.getCountry();
+ CharString* item = nullptr;
+ if (likelyRegion != nullptr && uprv_strlen(likelyRegion) > 0) {
+ size_t len = uprv_strlen(likelyRegion);
+ const char* foundInReplacement = uprv_strstr(replacement,
+ likelyRegion);
+ if (foundInReplacement != nullptr) {
+ // Assuming the case there are no three letter region code in
+ // the replacement of territoryAlias
+ U_ASSERT(foundInReplacement == replacement ||
+ *(foundInReplacement-1) == ' ');
+ U_ASSERT(foundInReplacement[len] == ' ' ||
+ foundInReplacement[len] == '\0');
+ item = new CharString(foundInReplacement, (int32_t)len, status);
+ }
+ }
+ if (item == nullptr) {
+ item = new CharString(replacement,
+ (int32_t)(firstSpace - replacement), status);
+ }
+ if (U_FAILURE(status)) { return false; }
+ if (item == nullptr) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return false;
+ }
+ replacedRegion = item->data();
+ toBeFreed.addElement(item, status);
+ }
+ U_ASSERT(!same(region, replacedRegion));
+ region = replacedRegion;
+ // The region is changed by data in territory alias.
+ return true;
+}
+
+bool
+AliasReplacer::replaceScript(UErrorCode& status)
+{
+ if (U_FAILURE(status)) {
+ return false;
+ }
+ if (script == nullptr) {
+ // No script to search.
+ return false;
+ }
+ const char *replacement = data->scriptMap().get(script);
+ if (replacement == nullptr) {
+ // Found no replacement data for this script.
+ return false;
+ }
+ U_ASSERT(!same(script, replacement));
+ script = replacement;
+ // The script is changed by data in script alias.
+ return true;
+}
+
+bool
+AliasReplacer::replaceVariant(UErrorCode& status)
+{
+ if (U_FAILURE(status)) {
+ return false;
+ }
+ // Since we may have more than one variant, we need to loop through them.
+ for (int32_t i = 0; i < variants.size(); i++) {
+ const char *variant = (const char*)(variants.elementAt(i));
+ const char *replacement = data->variantMap().get(variant);
+ if (replacement == nullptr) {
+ // Found no replacement data for this variant.
+ continue;
+ }
+ U_ASSERT((uprv_strlen(replacement) >= 5 &&
+ uprv_strlen(replacement) <= 8) ||
+ (uprv_strlen(replacement) == 4 &&
+ replacement[0] >= '0' &&
+ replacement[0] <= '9'));
+ if (!same(variant, replacement)) {
+ variants.setElementAt((void*)replacement, i);
+ // Special hack to handle hepburn-heploc => alalc97
+ if (uprv_strcmp(variant, "heploc") == 0) {
+ for (int32_t j = 0; j < variants.size(); j++) {
+ if (uprv_strcmp((const char*)(variants.elementAt(j)),
+ "hepburn") == 0) {
+ variants.removeElementAt(j);
+ }
+ }
+ }
+ return true;
+ }
+ }
+ return false;
+}
+
+CharString&
+AliasReplacer::outputToString(
+ CharString& out, UErrorCode status)
+{
+ out.append(language, status);
+ if (notEmpty(script)) {
+ out.append(SEP_CHAR, status)
+ .append(script, status);
+ }
+ if (notEmpty(region)) {
+ out.append(SEP_CHAR, status)
+ .append(region, status);
+ }
+ if (variants.size() > 0) {
+ if (!notEmpty(script) && !notEmpty(region)) {
+ out.append(SEP_CHAR, status);
+ }
+ variants.sort([](UElement e1, UElement e2) -> int8_t {
+ return uprv_strcmp(
+ (const char*)e1.pointer, (const char*)e2.pointer);
+ }, status);
+ int32_t variantsStart = out.length();
+ for (int32_t i = 0; i < variants.size(); i++) {
+ out.append(SEP_CHAR, status)
+ .append((const char*)((UVector*)variants.elementAt(i)),
+ status);
+ }
+ T_CString_toUpperCase(out.data() + variantsStart);
+ }
+ if (notEmpty(extensions)) {
+ CharString tmp("und_", status);
+ tmp.append(extensions, status);
+ Locale tmpLocale(tmp.data());
+ // only support x extension inside CLDR for now.
+ U_ASSERT(extensions[0] == 'x');
+ out.append(tmpLocale.getName() + 1, status);
+ }
+ return out;
+}
+
+bool
+AliasReplacer::replace(const Locale& locale, CharString& out, UErrorCode status)
+{
+ data = AliasData::singleton(status);
+ if (U_FAILURE(status)) {
+ return false;
+ }
+ U_ASSERT(data != nullptr);
+ out.clear();
+ language = locale.getLanguage();
+ if (!notEmpty(language)) {
+ language = nullptr;
+ }
+ script = locale.getScript();
+ if (!notEmpty(script)) {
+ script = nullptr;
+ }
+ region = locale.getCountry();
+ if (!notEmpty(region)) {
+ region = nullptr;
+ }
+ const char* variantsStr = locale.getVariant();
+ const char* extensionsStr = locale_getKeywordsStart(locale.getName());
+ CharString variantsBuff(variantsStr, -1, status);
+ if (!variantsBuff.isEmpty()) {
+ if (U_FAILURE(status)) { return false; }
+ char* start = variantsBuff.data();
+ T_CString_toLowerCase(start);
+ char* end;
+ while ((end = uprv_strchr(start, SEP_CHAR)) != nullptr &&
+ U_SUCCESS(status)) {
+ *end = NULL_CHAR; // null terminate inside variantsBuff
+ variants.addElement(start, status);
+ start = end + 1;
+ }
+ variants.addElement(start, status);
+ }
+ if (U_FAILURE(status)) { return false; }
+
+ // Sort the variants
+ variants.sort([](UElement e1, UElement e2) -> int8_t {
+ return uprv_strcmp(
+ (const char*)e1.pointer, (const char*)e2.pointer);
+ }, status);
+
+ // A changed count to assert when loop too many times.
+ int changed = 0;
+ // A UVector to to hold CharString allocated by the replace* method
+ // and freed when out of scope from his function.
+ UVector stringsToBeFreed([](void *obj){ delete ((CharString*) obj); },
+ nullptr, 10, status);
+ while (U_SUCCESS(status)) {
+ // Something wrong with the data cause looping here more than 10 times
+ // already.
+ U_ASSERT(changed < 5);
+ // From observation of key in data/misc/metadata.txt
+ // we know currently we only need to search in the following combination
+ // of fields for type in languageAlias:
+ // * lang_region_variant
+ // * lang_region
+ // * lang_variant
+ // * lang
+ // * und_variant
+ // This assumption is ensured by the U_ASSERT in readLanguageAlias
+ //
+ // lang REGION variant
+ if ( replaceLanguage(true, true, true, stringsToBeFreed, status) ||
+ replaceLanguage(true, true, false, stringsToBeFreed, status) ||
+ replaceLanguage(true, false, true, stringsToBeFreed, status) ||
+ replaceLanguage(true, false, false, stringsToBeFreed, status) ||
+ replaceLanguage(false,false, true, stringsToBeFreed, status) ||
+ replaceTerritory(stringsToBeFreed, status) ||
+ replaceScript(status) ||
+ replaceVariant(status)) {
+ // Some values in data is changed, try to match from the beginning
+ // again.
+ changed++;
+ continue;
+ }
+ // Nothing changed. Break out.
+ break;
+ } // while(1)
+
+ if (U_FAILURE(status)) { return false; }
+ // Nothing changed and we know the order of the vaiants are not change
+ // because we have no variant or only one.
+ if (changed == 0 && variants.size() <= 1) {
+ return false;
+ }
+ outputToString(out, status);
+ if (extensionsStr != nullptr) {
+ out.append(extensionsStr, status);
+ }
+ if (U_FAILURE(status)) {
+ return false;
+ }
+ // If the tag is not changed, return.
+ if (uprv_strcmp(out.data(), locale.getName()) == 0) {
+ U_ASSERT(changed == 0);
+ U_ASSERT(variants.size() > 1);
+ out.clear();
+ return false;
+ }
+ return true;
+}
+
+// Return true if the locale is changed during canonicalization.
+// The replaced value then will be put into out.
+bool
+canonicalizeLocale(const Locale& locale, CharString& out, UErrorCode& status)
+{
+ AliasReplacer replacer(status);
+ return replacer.replace(locale, out, status);
+}
+
+// Function to optimize for known cases without so we can skip the loading
+// of resources in the startup time until we really need it.
+bool
+isKnownCanonicalizedLocale(const char* locale, UErrorCode& status)
+{
+ if ( uprv_strcmp(locale, "c") == 0 ||
+ uprv_strcmp(locale, "en") == 0 ||
+ uprv_strcmp(locale, "en_US") == 0) {
+ return true;
+ }
+
+ // common well-known Canonicalized.
+ umtx_initOnce(gKnownCanonicalizedInitOnce,
+ &loadKnownCanonicalized, status);
+ if (U_FAILURE(status)) {
+ return false;
+ }
+ U_ASSERT(gKnownCanonicalized != nullptr);
+ return uhash_geti(gKnownCanonicalized, locale) != 0;
+}
+
+} // namespace
+
+// Function for testing.
+U_CAPI const char* const*
+ulocimp_getKnownCanonicalizedLocaleForTest(int32_t* length)
+{
+ *length = UPRV_LENGTHOF(KNOWN_CANONICALIZED);
+ return KNOWN_CANONICALIZED;
+}
+
+// Function for testing.
+U_CAPI bool
+ulocimp_isCanonicalizedLocaleForTest(const char* localeName)
+{
+ Locale l(localeName);
+ UErrorCode status = U_ZERO_ERROR;
+ CharString temp;
+ return !canonicalizeLocale(l, temp, status) && U_SUCCESS(status);
+}
+
+/*This function initializes a Locale from a C locale ID*/
+Locale& Locale::init(const char* localeID, UBool canonicalize)
+{
+ fIsBogus = FALSE;
+ /* Free our current storage */
+ if (baseName != fullName) {
+ uprv_free(baseName);
+ }
+ baseName = NULL;
+ if(fullName != fullNameBuffer) {
+ uprv_free(fullName);
+ fullName = fullNameBuffer;
+ }
+
+ // not a loop:
+ // just an easy way to have a common error-exit
+ // without goto and without another function
+ do {
+ char *separator;
+ char *field[5] = {0};
+ int32_t fieldLen[5] = {0};
+ int32_t fieldIdx;
+ int32_t variantField;
+ int32_t length;
+ UErrorCode err;
+
+ if(localeID == NULL) {
+ // not an error, just set the default locale
+ return *this = getDefault();
+ }
+
+ /* preset all fields to empty */
+ language[0] = script[0] = country[0] = 0;
+
+ // "canonicalize" the locale ID to ICU/Java format
+ err = U_ZERO_ERROR;
+ length = canonicalize ?
+ uloc_canonicalize(localeID, fullName, sizeof(fullNameBuffer), &err) :
+ uloc_getName(localeID, fullName, sizeof(fullNameBuffer), &err);
+
+ if(err == U_BUFFER_OVERFLOW_ERROR || length >= (int32_t)sizeof(fullNameBuffer)) {
+ /*Go to heap for the fullName if necessary*/
+ fullName = (char *)uprv_malloc(sizeof(char)*(length + 1));
+ if(fullName == 0) {
+ fullName = fullNameBuffer;
+ break; // error: out of memory
+ }
+ err = U_ZERO_ERROR;
+ length = canonicalize ?
+ uloc_canonicalize(localeID, fullName, length+1, &err) :
+ uloc_getName(localeID, fullName, length+1, &err);
+ }
+ if(U_FAILURE(err) || err == U_STRING_NOT_TERMINATED_WARNING) {
+ /* should never occur */
+ break;
+ }
+
+ variantBegin = length;
+
+ /* after uloc_getName/canonicalize() we know that only '_' are separators */
+ /* But _ could also appeared in timezone such as "en@timezone=America/Los_Angeles" */
+ separator = field[0] = fullName;
+ fieldIdx = 1;
+ char* at = uprv_strchr(fullName, '@');
+ while ((separator = uprv_strchr(field[fieldIdx-1], SEP_CHAR)) != 0 &&
+ fieldIdx < UPRV_LENGTHOF(field)-1 &&
+ (at == nullptr || separator < at)) {
+ field[fieldIdx] = separator + 1;
+ fieldLen[fieldIdx-1] = (int32_t)(separator - field[fieldIdx-1]);
+ fieldIdx++;
+ }
+ // variant may contain @foo or .foo POSIX cruft; remove it
+ separator = uprv_strchr(field[fieldIdx-1], '@');
+ char* sep2 = uprv_strchr(field[fieldIdx-1], '.');
+ if (separator!=NULL || sep2!=NULL) {
+ if (separator==NULL || (sep2!=NULL && separator > sep2)) {
+ separator = sep2;
+ }
+ fieldLen[fieldIdx-1] = (int32_t)(separator - field[fieldIdx-1]);
+ } else {
+ fieldLen[fieldIdx-1] = length - (int32_t)(field[fieldIdx-1] - fullName);
+ }
+
+ if (fieldLen[0] >= (int32_t)(sizeof(language)))
+ {
+ break; // error: the language field is too long
+ }
+
+ variantField = 1; /* Usually the 2nd one, except when a script or country is also used. */
+ if (fieldLen[0] > 0) {
+ /* We have a language */
+ uprv_memcpy(language, fullName, fieldLen[0]);
+ language[fieldLen[0]] = 0;
+ }
+ if (fieldLen[1] == 4 && uprv_isASCIILetter(field[1][0]) &&
+ uprv_isASCIILetter(field[1][1]) && uprv_isASCIILetter(field[1][2]) &&
+ uprv_isASCIILetter(field[1][3])) {
+ /* We have at least a script */
+ uprv_memcpy(script, field[1], fieldLen[1]);
+ script[fieldLen[1]] = 0;
+ variantField++;
+ }
+
+ if (fieldLen[variantField] == 2 || fieldLen[variantField] == 3) {
+ /* We have a country */
+ uprv_memcpy(country, field[variantField], fieldLen[variantField]);
+ country[fieldLen[variantField]] = 0;
+ variantField++;
+ } else if (fieldLen[variantField] == 0) {
+ variantField++; /* script or country empty but variant in next field (i.e. en__POSIX) */
+ }
+
+ if (fieldLen[variantField] > 0) {
+ /* We have a variant */
+ variantBegin = (int32_t)(field[variantField] - fullName);
+ }
+
+ err = U_ZERO_ERROR;
+ initBaseName(err);
+ if (U_FAILURE(err)) {
+ break;
+ }
+
+ if (canonicalize) {
+ if (!isKnownCanonicalizedLocale(fullName, err)) {
+ CharString replaced;
+ // Not sure it is already canonicalized
+ if (canonicalizeLocale(*this, replaced, err)) {
+ U_ASSERT(U_SUCCESS(err));
+ // If need replacement, call init again.
+ init(replaced.data(), false);
+ }
+ if (U_FAILURE(err)) {
+ break;
+ }
+ }
+ } // if (canonicalize) {
+
+ // successful end of init()
+ return *this;
+ } while(0); /*loop doesn't iterate*/
+
+ // when an error occurs, then set this object to "bogus" (there is no UErrorCode here)
+ setToBogus();
+
+ return *this;
+}
+
+/*
+ * Set up the base name.
+ * If there are no key words, it's exactly the full name.
+ * If key words exist, it's the full name truncated at the '@' character.
+ * Need to set up both at init() and after setting a keyword.
+ */
+void
+Locale::initBaseName(UErrorCode &status) {
+ if (U_FAILURE(status)) {
+ return;
+ }
+ U_ASSERT(baseName==NULL || baseName==fullName);
+ const char *atPtr = uprv_strchr(fullName, '@');
+ const char *eqPtr = uprv_strchr(fullName, '=');
+ if (atPtr && eqPtr && atPtr < eqPtr) {
+ // Key words exist.
+ int32_t baseNameLength = (int32_t)(atPtr - fullName);
+ baseName = (char *)uprv_malloc(baseNameLength + 1);
+ if (baseName == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+ uprv_strncpy(baseName, fullName, baseNameLength);
+ baseName[baseNameLength] = 0;
+
+ // The original computation of variantBegin leaves it equal to the length
+ // of fullName if there is no variant. It should instead be
+ // the length of the baseName.
+ if (variantBegin > baseNameLength) {
+ variantBegin = baseNameLength;
+ }
+ } else {
+ baseName = fullName;
+ }
+}
+
+
+int32_t
+Locale::hashCode() const
+{
+ return ustr_hashCharsN(fullName, static_cast<int32_t>(uprv_strlen(fullName)));
+}
+
+void
+Locale::setToBogus() {
+ /* Free our current storage */
+ if(baseName != fullName) {
+ uprv_free(baseName);
+ }
+ baseName = NULL;
+ if(fullName != fullNameBuffer) {
+ uprv_free(fullName);
+ fullName = fullNameBuffer;
+ }
+ *fullNameBuffer = 0;
+ *language = 0;
+ *script = 0;
+ *country = 0;
+ fIsBogus = TRUE;
+ variantBegin = 0;
+}
+
+const Locale& U_EXPORT2
+Locale::getDefault()
+{
+ {
+ Mutex lock(&gDefaultLocaleMutex);
+ if (gDefaultLocale != NULL) {
+ return *gDefaultLocale;
+ }
+ }
+ UErrorCode status = U_ZERO_ERROR;
+ return *locale_set_default_internal(NULL, status);
+}
+
+
+
+void U_EXPORT2
+Locale::setDefault( const Locale& newLocale,
+ UErrorCode& status)
+{
+ if (U_FAILURE(status)) {
+ return;
+ }
+
+ /* Set the default from the full name string of the supplied locale.
+ * This is a convenient way to access the default locale caching mechanisms.
+ */
+ const char *localeID = newLocale.getName();
+ locale_set_default_internal(localeID, status);
+}
+
+void
+Locale::addLikelySubtags(UErrorCode& status) {
+ if (U_FAILURE(status)) {
+ return;
+ }
+
+ CharString maximizedLocaleID;
+ {
+ CharStringByteSink sink(&maximizedLocaleID);
+ ulocimp_addLikelySubtags(fullName, sink, &status);
+ }
+
+ if (U_FAILURE(status)) {
+ return;
+ }
+
+ init(maximizedLocaleID.data(), /*canonicalize=*/FALSE);
+ if (isBogus()) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ }
+}
+
+void
+Locale::minimizeSubtags(UErrorCode& status) {
+ if (U_FAILURE(status)) {
+ return;
+ }
+
+ CharString minimizedLocaleID;
+ {
+ CharStringByteSink sink(&minimizedLocaleID);
+ ulocimp_minimizeSubtags(fullName, sink, &status);
+ }
+
+ if (U_FAILURE(status)) {
+ return;
+ }
+
+ init(minimizedLocaleID.data(), /*canonicalize=*/FALSE);
+ if (isBogus()) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ }
+}
+
+void
+Locale::canonicalize(UErrorCode& status) {
+ if (U_FAILURE(status)) {
+ return;
+ }
+ if (isBogus()) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
+ CharString uncanonicalized(fullName, status);
+ if (U_FAILURE(status)) {
+ return;
+ }
+ init(uncanonicalized.data(), /*canonicalize=*/TRUE);
+ if (isBogus()) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ }
+}
+
+Locale U_EXPORT2
+Locale::forLanguageTag(StringPiece tag, UErrorCode& status)
+{
+ Locale result(Locale::eBOGUS);
+
+ if (U_FAILURE(status)) {
+ return result;
+ }
+
+ // If a BCP 47 language tag is passed as the language parameter to the
+ // normal Locale constructor, it will actually fall back to invoking
+ // uloc_forLanguageTag() to parse it if it somehow is able to detect that
+ // the string actually is BCP 47. This works well for things like strings
+ // using BCP 47 extensions, but it does not at all work for things like
+ // legacy language tags (marked as “Type: grandfathered” in BCP 47,
+ // e.g., "en-GB-oed") which are possible to also
+ // interpret as ICU locale IDs and because of that won't trigger the BCP 47
+ // parsing. Therefore the code here explicitly calls uloc_forLanguageTag()
+ // and then Locale::init(), instead of just calling the normal constructor.
+
+ CharString localeID;
+ int32_t parsedLength;
+ {
+ CharStringByteSink sink(&localeID);
+ ulocimp_forLanguageTag(
+ tag.data(),
+ tag.length(),
+ sink,
+ &parsedLength,
+ &status);
+ }
+
+ if (U_FAILURE(status)) {
+ return result;
+ }
+
+ if (parsedLength != tag.size()) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return result;
+ }
+
+ result.init(localeID.data(), /*canonicalize=*/FALSE);
+ if (result.isBogus()) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ }
+ return result;
+}
+
+void
+Locale::toLanguageTag(ByteSink& sink, UErrorCode& status) const
+{
+ if (U_FAILURE(status)) {
+ return;
+ }
+
+ if (fIsBogus) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
+
+ ulocimp_toLanguageTag(fullName, sink, /*strict=*/FALSE, &status);
+}
+
+Locale U_EXPORT2
+Locale::createFromName (const char *name)
+{
+ if (name) {
+ Locale l("");
+ l.init(name, FALSE);
+ return l;
+ }
+ else {
+ return getDefault();
+ }
+}
+
+Locale U_EXPORT2
+Locale::createCanonical(const char* name) {
+ Locale loc("");
+ loc.init(name, TRUE);
+ return loc;
+}
+
+const char *
+Locale::getISO3Language() const
+{
+ return uloc_getISO3Language(fullName);
+}
+
+
+const char *
+Locale::getISO3Country() const
+{
+ return uloc_getISO3Country(fullName);
+}
+
+/**
+ * Return the LCID value as specified in the "LocaleID" resource for this
+ * locale. The LocaleID must be expressed as a hexadecimal number, from
+ * one to four digits. If the LocaleID resource is not present, or is
+ * in an incorrect format, 0 is returned. The LocaleID is for use in
+ * Windows (it is an LCID), but is available on all platforms.
+ */
+uint32_t
+Locale::getLCID() const
+{
+ return uloc_getLCID(fullName);
+}
+
+const char* const* U_EXPORT2 Locale::getISOCountries()
+{
+ return uloc_getISOCountries();
+}
+
+const char* const* U_EXPORT2 Locale::getISOLanguages()
+{
+ return uloc_getISOLanguages();
+}
+
+// Set the locale's data based on a posix id.
+void Locale::setFromPOSIXID(const char *posixID)
+{
+ init(posixID, TRUE);
+}
+
+const Locale & U_EXPORT2
+Locale::getRoot(void)
+{
+ return getLocale(eROOT);
+}
+
+const Locale & U_EXPORT2
+Locale::getEnglish(void)
+{
+ return getLocale(eENGLISH);
+}
+
+const Locale & U_EXPORT2
+Locale::getFrench(void)
+{
+ return getLocale(eFRENCH);
+}
+
+const Locale & U_EXPORT2
+Locale::getGerman(void)
+{
+ return getLocale(eGERMAN);
+}
+
+const Locale & U_EXPORT2
+Locale::getItalian(void)
+{
+ return getLocale(eITALIAN);
+}
+
+const Locale & U_EXPORT2
+Locale::getJapanese(void)
+{
+ return getLocale(eJAPANESE);
+}
+
+const Locale & U_EXPORT2
+Locale::getKorean(void)
+{
+ return getLocale(eKOREAN);
+}
+
+const Locale & U_EXPORT2
+Locale::getChinese(void)
+{
+ return getLocale(eCHINESE);
+}
+
+const Locale & U_EXPORT2
+Locale::getSimplifiedChinese(void)
+{
+ return getLocale(eCHINA);
+}
+
+const Locale & U_EXPORT2
+Locale::getTraditionalChinese(void)
+{
+ return getLocale(eTAIWAN);
+}
+
+
+const Locale & U_EXPORT2
+Locale::getFrance(void)
+{
+ return getLocale(eFRANCE);
+}
+
+const Locale & U_EXPORT2
+Locale::getGermany(void)
+{
+ return getLocale(eGERMANY);
+}
+
+const Locale & U_EXPORT2
+Locale::getItaly(void)
+{
+ return getLocale(eITALY);
+}
+
+const Locale & U_EXPORT2
+Locale::getJapan(void)
+{
+ return getLocale(eJAPAN);
+}
+
+const Locale & U_EXPORT2
+Locale::getKorea(void)
+{
+ return getLocale(eKOREA);
+}
+
+const Locale & U_EXPORT2
+Locale::getChina(void)
+{
+ return getLocale(eCHINA);
+}
+
+const Locale & U_EXPORT2
+Locale::getPRC(void)
+{
+ return getLocale(eCHINA);
+}
+
+const Locale & U_EXPORT2
+Locale::getTaiwan(void)
+{
+ return getLocale(eTAIWAN);
+}
+
+const Locale & U_EXPORT2
+Locale::getUK(void)
+{
+ return getLocale(eUK);
+}
+
+const Locale & U_EXPORT2
+Locale::getUS(void)
+{
+ return getLocale(eUS);
+}
+
+const Locale & U_EXPORT2
+Locale::getCanada(void)
+{
+ return getLocale(eCANADA);
+}
+
+const Locale & U_EXPORT2
+Locale::getCanadaFrench(void)
+{
+ return getLocale(eCANADA_FRENCH);
+}
+
+const Locale &
+Locale::getLocale(int locid)
+{
+ Locale *localeCache = getLocaleCache();
+ U_ASSERT((locid < eMAX_LOCALES)&&(locid>=0));
+ if (localeCache == NULL) {
+ // Failure allocating the locale cache.
+ // The best we can do is return a NULL reference.
+ locid = 0;
+ }
+ return localeCache[locid]; /*operating on NULL*/
+}
+
+/*
+This function is defined this way in order to get around static
+initialization and static destruction.
+ */
+Locale *
+Locale::getLocaleCache(void)
+{
+ UErrorCode status = U_ZERO_ERROR;
+ umtx_initOnce(gLocaleCacheInitOnce, locale_init, status);
+ return gLocaleCache;
+}
+
+class KeywordEnumeration : public StringEnumeration {
+private:
+ char *keywords;
+ char *current;
+ int32_t length;
+ UnicodeString currUSKey;
+ static const char fgClassID;/* Warning this is used beyond the typical RTTI usage. */
+
+public:
+ static UClassID U_EXPORT2 getStaticClassID(void) { return (UClassID)&fgClassID; }
+ virtual UClassID getDynamicClassID(void) const { return getStaticClassID(); }
+public:
+ KeywordEnumeration(const char *keys, int32_t keywordLen, int32_t currentIndex, UErrorCode &status)
+ : keywords((char *)&fgClassID), current((char *)&fgClassID), length(0) {
+ if(U_SUCCESS(status) && keywordLen != 0) {
+ if(keys == NULL || keywordLen < 0) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ } else {
+ keywords = (char *)uprv_malloc(keywordLen+1);
+ if (keywords == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ }
+ else {
+ uprv_memcpy(keywords, keys, keywordLen);
+ keywords[keywordLen] = 0;
+ current = keywords + currentIndex;
+ length = keywordLen;
+ }
+ }
+ }
+ }
+
+ virtual ~KeywordEnumeration();
+
+ virtual StringEnumeration * clone() const
+ {
+ UErrorCode status = U_ZERO_ERROR;
+ return new KeywordEnumeration(keywords, length, (int32_t)(current - keywords), status);
+ }
+
+ virtual int32_t count(UErrorCode &/*status*/) const {
+ char *kw = keywords;
+ int32_t result = 0;
+ while(*kw) {
+ result++;
+ kw += uprv_strlen(kw)+1;
+ }
+ return result;
+ }
+
+ virtual const char* next(int32_t* resultLength, UErrorCode& status) {
+ const char* result;
+ int32_t len;
+ if(U_SUCCESS(status) && *current != 0) {
+ result = current;
+ len = (int32_t)uprv_strlen(current);
+ current += len+1;
+ if(resultLength != NULL) {
+ *resultLength = len;
+ }
+ } else {
+ if(resultLength != NULL) {
+ *resultLength = 0;
+ }
+ result = NULL;
+ }
+ return result;
+ }
+
+ virtual const UnicodeString* snext(UErrorCode& status) {
+ int32_t resultLength = 0;
+ const char *s = next(&resultLength, status);
+ return setChars(s, resultLength, status);
+ }
+
+ virtual void reset(UErrorCode& /*status*/) {
+ current = keywords;
+ }
+};
+
+const char KeywordEnumeration::fgClassID = '\0';
+
+KeywordEnumeration::~KeywordEnumeration() {
+ uprv_free(keywords);
+}
+
+// A wrapper around KeywordEnumeration that calls uloc_toUnicodeLocaleKey() in
+// the next() method for each keyword before returning it.
+class UnicodeKeywordEnumeration : public KeywordEnumeration {
+public:
+ using KeywordEnumeration::KeywordEnumeration;
+ virtual ~UnicodeKeywordEnumeration();
+
+ virtual const char* next(int32_t* resultLength, UErrorCode& status) {
+ const char* legacy_key = KeywordEnumeration::next(nullptr, status);
+ if (U_SUCCESS(status) && legacy_key != nullptr) {
+ const char* key = uloc_toUnicodeLocaleKey(legacy_key);
+ if (key == nullptr) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ } else {
+ if (resultLength != nullptr) {
+ *resultLength = static_cast<int32_t>(uprv_strlen(key));
+ }
+ return key;
+ }
+ }
+ if (resultLength != nullptr) *resultLength = 0;
+ return nullptr;
+ }
+};
+
+// Out-of-line virtual destructor to serve as the "key function".
+UnicodeKeywordEnumeration::~UnicodeKeywordEnumeration() = default;
+
+StringEnumeration *
+Locale::createKeywords(UErrorCode &status) const
+{
+ StringEnumeration *result = NULL;
+
+ if (U_FAILURE(status)) {
+ return result;
+ }
+
+ const char* variantStart = uprv_strchr(fullName, '@');
+ const char* assignment = uprv_strchr(fullName, '=');
+ if(variantStart) {
+ if(assignment > variantStart) {
+ CharString keywords;
+ CharStringByteSink sink(&keywords);
+ ulocimp_getKeywords(variantStart+1, '@', sink, FALSE, &status);
+ if (U_SUCCESS(status) && !keywords.isEmpty()) {
+ result = new KeywordEnumeration(keywords.data(), keywords.length(), 0, status);
+ if (!result) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ }
+ }
+ } else {
+ status = U_INVALID_FORMAT_ERROR;
+ }
+ }
+ return result;
+}
+
+StringEnumeration *
+Locale::createUnicodeKeywords(UErrorCode &status) const
+{
+ StringEnumeration *result = NULL;
+
+ if (U_FAILURE(status)) {
+ return result;
+ }
+
+ const char* variantStart = uprv_strchr(fullName, '@');
+ const char* assignment = uprv_strchr(fullName, '=');
+ if(variantStart) {
+ if(assignment > variantStart) {
+ CharString keywords;
+ CharStringByteSink sink(&keywords);
+ ulocimp_getKeywords(variantStart+1, '@', sink, FALSE, &status);
+ if (U_SUCCESS(status) && !keywords.isEmpty()) {
+ result = new UnicodeKeywordEnumeration(keywords.data(), keywords.length(), 0, status);
+ if (!result) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ }
+ }
+ } else {
+ status = U_INVALID_FORMAT_ERROR;
+ }
+ }
+ return result;
+}
+
+int32_t
+Locale::getKeywordValue(const char* keywordName, char *buffer, int32_t bufLen, UErrorCode &status) const
+{
+ return uloc_getKeywordValue(fullName, keywordName, buffer, bufLen, &status);
+}
+
+void
+Locale::getKeywordValue(StringPiece keywordName, ByteSink& sink, UErrorCode& status) const {
+ if (U_FAILURE(status)) {
+ return;
+ }
+
+ if (fIsBogus) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
+
+ // TODO: Remove the need for a const char* to a NUL terminated buffer.
+ const CharString keywordName_nul(keywordName, status);
+ if (U_FAILURE(status)) {
+ return;
+ }
+
+ ulocimp_getKeywordValue(fullName, keywordName_nul.data(), sink, &status);
+}
+
+void
+Locale::getUnicodeKeywordValue(StringPiece keywordName,
+ ByteSink& sink,
+ UErrorCode& status) const {
+ // TODO: Remove the need for a const char* to a NUL terminated buffer.
+ const CharString keywordName_nul(keywordName, status);
+ if (U_FAILURE(status)) {
+ return;
+ }
+
+ const char* legacy_key = uloc_toLegacyKey(keywordName_nul.data());
+
+ if (legacy_key == nullptr) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
+
+ CharString legacy_value;
+ {
+ CharStringByteSink sink(&legacy_value);
+ getKeywordValue(legacy_key, sink, status);
+ }
+
+ if (U_FAILURE(status)) {
+ return;
+ }
+
+ const char* unicode_value = uloc_toUnicodeLocaleType(
+ keywordName_nul.data(), legacy_value.data());
+
+ if (unicode_value == nullptr) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
+
+ sink.Append(unicode_value, static_cast<int32_t>(uprv_strlen(unicode_value)));
+}
+
+void
+Locale::setKeywordValue(const char* keywordName, const char* keywordValue, UErrorCode &status)
+{
+ if (U_FAILURE(status)) {
+ return;
+ }
+ int32_t bufferLength = uprv_max((int32_t)(uprv_strlen(fullName) + 1), ULOC_FULLNAME_CAPACITY);
+ int32_t newLength = uloc_setKeywordValue(keywordName, keywordValue, fullName,
+ bufferLength, &status) + 1;
+ /* Handle the case the current buffer is not enough to hold the new id */
+ if (status == U_BUFFER_OVERFLOW_ERROR) {
+ U_ASSERT(newLength > bufferLength);
+ char* newFullName = (char *)uprv_malloc(newLength);
+ if (newFullName == nullptr) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+ uprv_strcpy(newFullName, fullName);
+ if (fullName != fullNameBuffer) {
+ // if full Name is already on the heap, need to free it.
+ uprv_free(fullName);
+ }
+ fullName = newFullName;
+ status = U_ZERO_ERROR;
+ uloc_setKeywordValue(keywordName, keywordValue, fullName, newLength, &status);
+ } else {
+ U_ASSERT(newLength <= bufferLength);
+ }
+ if (U_SUCCESS(status) && baseName == fullName) {
+ // May have added the first keyword, meaning that the fullName is no longer also the baseName.
+ initBaseName(status);
+ }
+}
+
+void
+Locale::setKeywordValue(StringPiece keywordName,
+ StringPiece keywordValue,
+ UErrorCode& status) {
+ // TODO: Remove the need for a const char* to a NUL terminated buffer.
+ const CharString keywordName_nul(keywordName, status);
+ const CharString keywordValue_nul(keywordValue, status);
+ setKeywordValue(keywordName_nul.data(), keywordValue_nul.data(), status);
+}
+
+void
+Locale::setUnicodeKeywordValue(StringPiece keywordName,
+ StringPiece keywordValue,
+ UErrorCode& status) {
+ // TODO: Remove the need for a const char* to a NUL terminated buffer.
+ const CharString keywordName_nul(keywordName, status);
+ const CharString keywordValue_nul(keywordValue, status);
+
+ if (U_FAILURE(status)) {
+ return;
+ }
+
+ const char* legacy_key = uloc_toLegacyKey(keywordName_nul.data());
+
+ if (legacy_key == nullptr) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
+
+ const char* legacy_value = nullptr;
+
+ if (!keywordValue_nul.isEmpty()) {
+ legacy_value =
+ uloc_toLegacyType(keywordName_nul.data(), keywordValue_nul.data());
+
+ if (legacy_value == nullptr) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
+ }
+
+ setKeywordValue(legacy_key, legacy_value, status);
+}
+
+const char *
+Locale::getBaseName() const {
+ return baseName;
+}
+
+Locale::Iterator::~Iterator() = default;
+
+//eof
+U_NAMESPACE_END
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 11:59:03 +0000