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// © 2023 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
#include <utility>
#include <_foundation_unicode/bytestream.h>
#include <_foundation_unicode/localebuilder.h>
#include <_foundation_unicode/locid.h>
#include <_foundation_unicode/stringpiece.h>
#include <_foundation_unicode/umachine.h>
#include <_foundation_unicode/ulocbuilder.h>
#include "cstring.h"
#include "ustr_imp.h"
using icu::CheckedArrayByteSink;
using icu::StringPiece;
#define EXTERNAL(i) (reinterpret_cast<ULocaleBuilder*>(i))
#define INTERNAL(e) (reinterpret_cast<icu::LocaleBuilder*>(e))
#define CONST_INTERNAL(e) (reinterpret_cast<const icu::LocaleBuilder*>(e))
ULocaleBuilder* ulocbld_open() {
return EXTERNAL(new icu::LocaleBuilder());
}
void ulocbld_close(ULocaleBuilder* builder) {
if (builder == nullptr) return;
delete INTERNAL(builder);
}
void ulocbld_setLocale(ULocaleBuilder* builder, const char* locale, int32_t length) {
if (builder == nullptr) return;
icu::Locale l;
if (length < 0 || locale[length] == '\0') {
l = icu::Locale(locale);
} else {
if (length >= ULOC_FULLNAME_CAPACITY) {
l.setToBogus();
} else {
// locale is not null termined but Locale API require one.
// Create a null termined version in buf.
char buf[ULOC_FULLNAME_CAPACITY];
uprv_memcpy(buf, locale, length);
buf[length] = '\0';
l = icu::Locale(buf);
}
}
INTERNAL(builder)->setLocale(l);
}
void
ulocbld_adoptULocale(ULocaleBuilder* builder, ULocale* locale) {
if (builder == nullptr) return;
INTERNAL(builder)->setLocale(*(reinterpret_cast<const icu::Locale*>(locale)));
ulocale_close(locale);
}
#define STRING_PIECE(s, l) ((l)<0 ? StringPiece(s) : StringPiece((s), (l)))
#define IMPL_ULOCBLD_SETTER(N) \
void ulocbld_##N(ULocaleBuilder* bld, const char* s, int32_t l) { \
if (bld == nullptr) return; \
INTERNAL(bld)->N(STRING_PIECE(s,l)); \
}
IMPL_ULOCBLD_SETTER(setLanguageTag)
IMPL_ULOCBLD_SETTER(setLanguage)
IMPL_ULOCBLD_SETTER(setScript)
IMPL_ULOCBLD_SETTER(setRegion)
IMPL_ULOCBLD_SETTER(setVariant)
IMPL_ULOCBLD_SETTER(addUnicodeLocaleAttribute)
IMPL_ULOCBLD_SETTER(removeUnicodeLocaleAttribute)
void ulocbld_setExtension(ULocaleBuilder* builder, char key, const char* value, int32_t length) {
if (builder == nullptr) return;
INTERNAL(builder)->setExtension(key, STRING_PIECE(value, length));
}
void ulocbld_setUnicodeLocaleKeyword(
ULocaleBuilder* builder, const char* key, int32_t keyLength,
const char* type, int32_t typeLength) {
if (builder == nullptr) return;
INTERNAL(builder)->setUnicodeLocaleKeyword(
STRING_PIECE(key, keyLength), STRING_PIECE(type, typeLength));
}
void ulocbld_clear(ULocaleBuilder* builder) {
if (builder == nullptr) return;
INTERNAL(builder)->clear();
}
void ulocbld_clearExtensions(ULocaleBuilder* builder) {
if (builder == nullptr) return;
INTERNAL(builder)->clearExtensions();
}
ULocale* ulocbld_buildULocale(ULocaleBuilder* builder, UErrorCode* err) {
if (builder == nullptr) {
*err = U_ILLEGAL_ARGUMENT_ERROR;
return nullptr;
}
icu::Locale l = INTERNAL(builder)->build(*err);
if (U_FAILURE(*err)) return nullptr;
icu::Locale* r = l.clone();
if (r == nullptr) {
*err = U_MEMORY_ALLOCATION_ERROR;
return nullptr;
}
return reinterpret_cast<ULocale*>(r);
}
int32_t ulocbld_buildLocaleID(ULocaleBuilder* builder,
char* buffer, int32_t bufferCapacity, UErrorCode* err) {
if (builder == nullptr) {
*err = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
icu::Locale l = INTERNAL(builder)->build(*err);
if (U_FAILURE(*err)) return 0;
int32_t length = (int32_t)(uprv_strlen(l.getName()));
if (0 < length && length <= bufferCapacity) {
uprv_memcpy(buffer, l.getName(), length);
}
return u_terminateChars(buffer, bufferCapacity, length, err);
}
int32_t ulocbld_buildLanguageTag(ULocaleBuilder* builder,
char* buffer, int32_t bufferCapacity, UErrorCode* err) {
if (builder == nullptr) {
*err = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
icu::Locale l = INTERNAL(builder)->build(*err);
if (U_FAILURE(*err)) return 0;
CheckedArrayByteSink sink(buffer, bufferCapacity);
l.toLanguageTag(sink, *err);
int32_t reslen = sink.NumberOfBytesAppended();
if (U_FAILURE(*err)) {
return reslen;
}
if (sink.Overflowed()) {
*err = U_BUFFER_OVERFLOW_ERROR;
} else {
u_terminateChars(buffer, bufferCapacity, reslen, err);
}
return reslen;
}
UBool ulocbld_copyErrorTo(const ULocaleBuilder* builder, UErrorCode *outErrorCode) {
if (builder == nullptr) {
*outErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
return true;
}
return CONST_INTERNAL(builder)->copyErrorTo(*outErrorCode);
}
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