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/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "NativeBreakIterator"
#include "JNIHelp.h"
#include "JniConstants.h"
#include "ErrorCode.h"
#include "ScopedJavaUnicodeString.h"
#include "ScopedUtfChars.h"
#include "unicode/ubrk.h"
#include "unicode/putil.h"
#include <stdlib.h>
static jint getIterator(JNIEnv* env, jstring locale, UBreakIteratorType type) {
UErrorCode status = U_ZERO_ERROR;
ScopedUtfChars localeChars(env, locale);
if (localeChars.c_str() == NULL) {
return 0;
}
UBreakIterator* it = ubrk_open(type, localeChars.c_str(), NULL, 0, &status);
icu4jni_error(env, status);
return reinterpret_cast<uintptr_t>(it);
}
static jint NativeBreakIterator_getCharacterInstanceImpl(JNIEnv* env, jclass, jstring locale) {
return getIterator(env, locale, UBRK_CHARACTER);
}
static jint NativeBreakIterator_getLineInstanceImpl(JNIEnv* env, jclass, jstring locale) {
return getIterator(env, locale, UBRK_LINE);
}
static jint NativeBreakIterator_getSentenceInstanceImpl(JNIEnv* env, jclass, jstring locale) {
return getIterator(env, locale, UBRK_SENTENCE);
}
static jint NativeBreakIterator_getWordInstanceImpl(JNIEnv* env, jclass, jstring locale) {
return getIterator(env, locale, UBRK_WORD);
}
static UBreakIterator* breakIterator(jint address) {
return reinterpret_cast<UBreakIterator*>(static_cast<uintptr_t>(address));
}
static void NativeBreakIterator_closeBreakIteratorImpl(JNIEnv*, jclass, jint address) {
ubrk_close(breakIterator(address));
}
static jint NativeBreakIterator_cloneImpl(JNIEnv* env, jclass, jint address) {
UErrorCode status = U_ZERO_ERROR;
jint bufferSize = U_BRK_SAFECLONE_BUFFERSIZE;
UBreakIterator* it = ubrk_safeClone(breakIterator(address), NULL, &bufferSize, &status);
icu4jni_error(env, status);
return reinterpret_cast<uintptr_t>(it);
}
static void NativeBreakIterator_setTextImpl(JNIEnv* env, jclass, jint address, jstring javaText) {
ScopedJavaUnicodeString text(env, javaText);
UnicodeString& s(text.unicodeString());
UErrorCode status = U_ZERO_ERROR;
ubrk_setText(breakIterator(address), s.getBuffer(), s.length(), &status);
icu4jni_error(env, status);
}
static jboolean NativeBreakIterator_isBoundaryImpl(JNIEnv*, jclass, jint address, jint offset) {
return ubrk_isBoundary(breakIterator(address), offset);
}
static jint NativeBreakIterator_nextImpl(JNIEnv*, jclass, jint address, jint n) {
UBreakIterator* bi = breakIterator(address);
if (n < 0) {
while (n++ < -1) {
ubrk_previous(bi);
}
return ubrk_previous(bi);
} else if (n == 0) {
return ubrk_current(bi);
} else {
while (n-- > 1) {
ubrk_next(bi);
}
return ubrk_next(bi);
}
return -1;
}
static jint NativeBreakIterator_precedingImpl(JNIEnv*, jclass, jint address, jint offset) {
return ubrk_preceding(breakIterator(address), offset);
}
static jint NativeBreakIterator_firstImpl(JNIEnv*, jclass, jint address) {
return ubrk_first(breakIterator(address));
}
static jint NativeBreakIterator_followingImpl(JNIEnv*, jclass, jint address, jint offset) {
return ubrk_following(breakIterator(address), offset);
}
static jint NativeBreakIterator_currentImpl(JNIEnv*, jclass, jint address) {
return ubrk_current(breakIterator(address));
}
static jint NativeBreakIterator_previousImpl(JNIEnv*, jclass, jint address) {
return ubrk_previous(breakIterator(address));
}
static jint NativeBreakIterator_lastImpl(JNIEnv*, jclass, jint address) {
return ubrk_last(breakIterator(address));
}
static JNINativeMethod gMethods[] = {
NATIVE_METHOD(NativeBreakIterator, cloneImpl, "(I)I"),
NATIVE_METHOD(NativeBreakIterator, closeBreakIteratorImpl, "(I)V"),
NATIVE_METHOD(NativeBreakIterator, currentImpl, "(I)I"),
NATIVE_METHOD(NativeBreakIterator, firstImpl, "(I)I"),
NATIVE_METHOD(NativeBreakIterator, followingImpl, "(II)I"),
NATIVE_METHOD(NativeBreakIterator, getCharacterInstanceImpl, "(Ljava/lang/String;)I"),
NATIVE_METHOD(NativeBreakIterator, getLineInstanceImpl, "(Ljava/lang/String;)I"),
NATIVE_METHOD(NativeBreakIterator, getSentenceInstanceImpl, "(Ljava/lang/String;)I"),
NATIVE_METHOD(NativeBreakIterator, getWordInstanceImpl, "(Ljava/lang/String;)I"),
NATIVE_METHOD(NativeBreakIterator, isBoundaryImpl, "(II)Z"),
NATIVE_METHOD(NativeBreakIterator, lastImpl, "(I)I"),
NATIVE_METHOD(NativeBreakIterator, nextImpl, "(II)I"),
NATIVE_METHOD(NativeBreakIterator, precedingImpl, "(II)I"),
NATIVE_METHOD(NativeBreakIterator, previousImpl, "(I)I"),
NATIVE_METHOD(NativeBreakIterator, setTextImpl, "(ILjava/lang/String;)V"),
};
int register_libcore_icu_NativeBreakIterator(JNIEnv* env) {
return jniRegisterNativeMethods(env, "libcore/icu/NativeBreakIterator", gMethods, NELEM(gMethods));
}
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