tor-browser

The Tor Browser
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ulocale.cpp (3237B)

      1 // © 2023 and later: Unicode, Inc. and others.
      2 // License & terms of use: http://www.unicode.org/copyright.html
      3 //
      4 #include "unicode/bytestream.h"
      5 #include "unicode/errorcode.h"
      6 #include "unicode/stringpiece.h"
      7 #include "unicode/utypes.h"
      8 #include "unicode/ustring.h"
      9 #include "unicode/ulocale.h"
     10 #include "unicode/locid.h"
     11 
     12 #include "bytesinkutil.h"
     13 #include "cmemory.h"
     14 
     15 U_NAMESPACE_USE
     16 #define EXTERNAL(i) (reinterpret_cast<ULocale*>(i))
     17 #define CONST_INTERNAL(e) (reinterpret_cast<const icu::Locale*>(e))
     18 #define INTERNAL(e) (reinterpret_cast<icu::Locale*>(e))
     19 
     20 ULocale*
     21 ulocale_openForLocaleID(const char* localeID, int32_t length, UErrorCode* err) {
     22    if (U_FAILURE(*err)) { return nullptr; }
     23    if (length < 0) {
     24        return EXTERNAL(icu::Locale::createFromName(localeID).clone());
     25    }
     26    return EXTERNAL(icu::Locale::createFromName(StringPiece{localeID, length}).clone());
     27 }
     28 
     29 ULocale*
     30 ulocale_openForLanguageTag(const char* tag, int32_t length, UErrorCode* err) {
     31  if (U_FAILURE(*err)) { return nullptr; }
     32  Locale l = icu::Locale::forLanguageTag(length < 0 ? StringPiece(tag) : StringPiece(tag, length), *err);
     33  if (U_FAILURE(*err)) { return nullptr; }
     34  return EXTERNAL(l.clone());
     35 }
     36 
     37 void
     38 ulocale_close(ULocale* locale) {
     39    delete INTERNAL(locale);
     40 }
     41 
     42 #define IMPL_ULOCALE_STRING_GETTER(N1, N2) \
     43 const char* ulocale_get ## N1(const ULocale* locale) { \
     44    if (locale == nullptr) return nullptr; \
     45    return CONST_INTERNAL(locale)->get ## N2(); \
     46 }
     47 
     48 #define IMPL_ULOCALE_STRING_IDENTICAL_GETTER(N) IMPL_ULOCALE_STRING_GETTER(N, N)
     49 
     50 #define IMPL_ULOCALE_GET_KEYWORD_VALUE(N) \
     51 int32_t ulocale_get ##N ( \
     52    const ULocale* locale, const char* keyword, int32_t keywordLength, \
     53    char* valueBuffer, int32_t bufferCapacity, UErrorCode *err) { \
     54    if (U_FAILURE(*err)) return 0; \
     55    if (locale == nullptr) { \
     56        *err = U_ILLEGAL_ARGUMENT_ERROR; \
     57        return 0; \
     58    } \
     59    return ByteSinkUtil::viaByteSinkToTerminatedChars( \
     60        valueBuffer, bufferCapacity, \
     61        [&](ByteSink& sink, UErrorCode& status) { \
     62            CONST_INTERNAL(locale)->get ## N( \
     63                keywordLength < 0 ? StringPiece(keyword) : StringPiece(keyword, keywordLength), \
     64                sink, status); \
     65        }, \
     66        *err); \
     67 }
     68 
     69 #define IMPL_ULOCALE_GET_KEYWORDS(N) \
     70 UEnumeration* ulocale_get ## N(const ULocale* locale, UErrorCode *err) { \
     71    if (U_FAILURE(*err)) return nullptr; \
     72    if (locale == nullptr) { \
     73        *err = U_ILLEGAL_ARGUMENT_ERROR; \
     74        return nullptr; \
     75    } \
     76    return uenum_openFromStringEnumeration( \
     77        CONST_INTERNAL(locale)->create ## N(*err), err); \
     78 }
     79 
     80 IMPL_ULOCALE_STRING_IDENTICAL_GETTER(Language)
     81 IMPL_ULOCALE_STRING_IDENTICAL_GETTER(Script)
     82 IMPL_ULOCALE_STRING_GETTER(Region, Country)
     83 IMPL_ULOCALE_STRING_IDENTICAL_GETTER(Variant)
     84 IMPL_ULOCALE_STRING_GETTER(LocaleID, Name)
     85 IMPL_ULOCALE_STRING_IDENTICAL_GETTER(BaseName)
     86 IMPL_ULOCALE_GET_KEYWORD_VALUE(KeywordValue)
     87 IMPL_ULOCALE_GET_KEYWORD_VALUE(UnicodeKeywordValue)
     88 IMPL_ULOCALE_GET_KEYWORDS(Keywords)
     89 IMPL_ULOCALE_GET_KEYWORDS(UnicodeKeywords)
     90 
     91 bool ulocale_isBogus(const ULocale* locale) {
     92    if (locale == nullptr) return false;
     93    return CONST_INTERNAL(locale)->isBogus();
     94 }
     95 
     96 /*eof*/