1dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes/* 2dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes * Copyright (C) 2006 The Android Open Source Project 3dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes * 4dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 5dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes * you may not use this file except in compliance with the License. 6dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes * You may obtain a copy of the License at 7dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes * 8dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 9dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes * 10dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes * Unless required by applicable law or agreed to in writing, software 11dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 12dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes * See the License for the specific language governing permissions and 14dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes * limitations under the License. 15dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes */ 16dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 17dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes#define LOG_TAG "Character" 18dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 19dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes#include "JNIHelp.h" 20e22935d3c7040c22b48d53bd18878844f381287cElliott Hughes#include "JniConstants.h" 21dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes#include "ScopedUtfChars.h" 22dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes#include "unicode/uchar.h" 23dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes#include <math.h> 24dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes#include <stdlib.h> 25dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 26dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jint Character_digitImpl(JNIEnv*, jclass, jint codePoint, jint radix) { 27dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_digit(codePoint, radix); 28dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 29dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 30dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jint Character_getTypeImpl(JNIEnv*, jclass, jint codePoint) { 31dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_charType(codePoint); 32dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 33dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 34dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jbyte Character_getDirectionalityImpl(JNIEnv*, jclass, jint codePoint) { 35dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_charDirection(codePoint); 36dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 37dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 38dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jboolean Character_isMirroredImpl(JNIEnv*, jclass, jint codePoint) { 39dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_isMirrored(codePoint); 40dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 41dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 424f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughesstatic jstring Character_getNameImpl(JNIEnv* env, jclass, jint codePoint) { 434f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughes // U_UNICODE_CHAR_NAME gives us the modern names for characters. For control characters, 444f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughes // we need U_EXTENDED_CHAR_NAME to get "NULL" rather than "BASIC LATIN 0" and so on. 454f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughes // We could just use U_EXTENDED_CHAR_NAME except that it returns strings for characters 464f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughes // that aren't unassigned but that don't have names, and those strings aren't in the form 474f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughes // Java specifies. 484f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughes bool isControl = (codePoint <= 0x1f || (codePoint >= 0x7f && codePoint <= 0x9f)); 494f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughes UCharNameChoice nameType = isControl ? U_EXTENDED_CHAR_NAME : U_UNICODE_CHAR_NAME; 504f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughes UErrorCode status = U_ZERO_ERROR; 514f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughes char buf[BUFSIZ]; // TODO: is there a more sensible upper bound? 524f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughes int32_t byteCount = u_charName(codePoint, nameType, &buf[0], sizeof(buf), &status); 534f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughes return (U_FAILURE(status) || byteCount == 0) ? NULL : env->NewStringUTF(buf); 544f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughes} 554f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughes 56f275cbd60bd57e7bccefb521685c2f05c0dafbb4Elliott Hughesstatic jint Character_getNumericValueImpl(JNIEnv*, jclass, jint codePoint) { 57dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes double result = u_getNumericValue(codePoint); 58dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes if (result == U_NO_NUMERIC_VALUE) { 59dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return -1; 60dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes } else if (result < 0 || floor(result + 0.5) != result) { 61dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return -2; 62dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes } 6326e0cc02e3ddd5e77e5c99984e7b50de6f5a4aadOlivier Bailly return static_cast<jint>(result); 64dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 65dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 66dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jboolean Character_isDefinedImpl(JNIEnv*, jclass, jint codePoint) { 67dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_isdefined(codePoint); 68dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 69dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 70dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jboolean Character_isDigitImpl(JNIEnv*, jclass, jint codePoint) { 71dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_isdigit(codePoint); 72dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 73dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 74dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jboolean Character_isIdentifierIgnorableImpl(JNIEnv*, jclass, jint codePoint) { 75dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_isIDIgnorable(codePoint); 76dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 77dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 78dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jboolean Character_isLetterImpl(JNIEnv*, jclass, jint codePoint) { 79dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_isalpha(codePoint); 80dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 81dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 82dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jboolean Character_isLetterOrDigitImpl(JNIEnv*, jclass, jint codePoint) { 83dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_isalnum(codePoint); 84dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 85dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 86dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jboolean Character_isSpaceCharImpl(JNIEnv*, jclass, jint codePoint) { 87dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_isJavaSpaceChar(codePoint); 88dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 89dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 90dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jboolean Character_isTitleCaseImpl(JNIEnv*, jclass, jint codePoint) { 91dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_istitle(codePoint); 92dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 93dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 94dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jboolean Character_isUnicodeIdentifierPartImpl(JNIEnv*, jclass, jint codePoint) { 95dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_isIDPart(codePoint); 96dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 97dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 98dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jboolean Character_isUnicodeIdentifierStartImpl(JNIEnv*, jclass, jint codePoint) { 99dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_isIDStart(codePoint); 100dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 101dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 102dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jboolean Character_isWhitespaceImpl(JNIEnv*, jclass, jint codePoint) { 103dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_isWhitespace(codePoint); 104dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 105dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 106dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jint Character_toLowerCaseImpl(JNIEnv*, jclass, jint codePoint) { 107dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_tolower(codePoint); 108dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 109dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 110dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jint Character_toTitleCaseImpl(JNIEnv*, jclass, jint codePoint) { 111dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_totitle(codePoint); 112dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 113dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 114dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jint Character_toUpperCaseImpl(JNIEnv*, jclass, jint codePoint) { 115dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_toupper(codePoint); 116dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 117dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 118dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jboolean Character_isUpperCaseImpl(JNIEnv*, jclass, jint codePoint) { 119dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_isupper(codePoint); 120dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 121dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 122dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic jboolean Character_isLowerCaseImpl(JNIEnv*, jclass, jint codePoint) { 123dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_islower(codePoint); 124dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 125dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 126dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic int Character_forNameImpl(JNIEnv* env, jclass, jstring javaBlockName) { 127dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes ScopedUtfChars blockName(env, javaBlockName); 128dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes if (blockName.c_str() == NULL) { 129dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return 0; 130dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes } 131dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return u_getPropertyValueEnum(UCHAR_BLOCK, blockName.c_str()); 132dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 133dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 134dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic int Character_ofImpl(JNIEnv*, jclass, jint codePoint) { 135dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes return ublock_getCode(codePoint); 136dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 137dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes 138dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughesstatic JNINativeMethod gMethods[] = { 139adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, digitImpl, "!(II)I"), 140e22935d3c7040c22b48d53bd18878844f381287cElliott Hughes NATIVE_METHOD(Character, forNameImpl, "(Ljava/lang/String;)I"), 141adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, getDirectionalityImpl, "!(I)B"), 1424f5a696869e0348cf21dad9050d59b20849aff96Elliott Hughes NATIVE_METHOD(Character, getNameImpl, "(I)Ljava/lang/String;"), 143adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, getNumericValueImpl, "!(I)I"), 144adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, getTypeImpl, "!(I)I"), 145adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, isDefinedImpl, "!(I)Z"), 146adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, isDigitImpl, "!(I)Z"), 147adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, isIdentifierIgnorableImpl, "!(I)Z"), 148adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, isLetterImpl, "!(I)Z"), 149adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, isLetterOrDigitImpl, "!(I)Z"), 150adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, isLowerCaseImpl, "!(I)Z"), 151adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, isMirroredImpl, "!(I)Z"), 152adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, isSpaceCharImpl, "!(I)Z"), 153adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, isTitleCaseImpl, "!(I)Z"), 154adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, isUnicodeIdentifierPartImpl, "!(I)Z"), 155adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, isUnicodeIdentifierStartImpl, "!(I)Z"), 156adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, isUpperCaseImpl, "!(I)Z"), 157adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, isWhitespaceImpl, "!(I)Z"), 158adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, ofImpl, "!(I)I"), 159adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, toLowerCaseImpl, "!(I)I"), 160adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, toTitleCaseImpl, "!(I)I"), 161adac9168696a95f8ab13e333f85621833a54f034Elliott Hughes NATIVE_METHOD(Character, toUpperCaseImpl, "!(I)I"), 162dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes}; 1637cd6760f7045d771faae8080a8c6150bf678f679Elliott Hughesvoid register_java_lang_Character(JNIEnv* env) { 1647cd6760f7045d771faae8080a8c6150bf678f679Elliott Hughes jniRegisterNativeMethods(env, "java/lang/Character", gMethods, NELEM(gMethods)); 165dbbdffce5ac97a0e93ef495adaacca3660b9ab21Elliott Hughes} 166