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/* * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package java.lang; abstract class CharacterData {    abstract int getProperties(int ch);    abstract int getType(int ch);    abstract boolean isWhitespace(int ch);    abstract boolean isMirrored(int ch);    abstract boolean isJavaIdentifierStart(int ch);    abstract boolean isJavaIdentifierPart(int ch);    abstract boolean isUnicodeIdentifierStart(int ch);    abstract boolean isUnicodeIdentifierPart(int ch);    abstract boolean isIdentifierIgnorable(int ch);    abstract int toLowerCase(int ch);    abstract int toUpperCase(int ch);    abstract int toTitleCase(int ch);    abstract int digit(int ch, int radix);    abstract int getNumericValue(int ch);    abstract byte getDirectionality(int ch);     //need to implement for JSR204    int toUpperCaseEx(int ch) {        return toUpperCase(ch);    }     char[] toUpperCaseCharArray(int ch) {        return null;    }     boolean isOtherLowercase(int ch) {        return false;    }     boolean isOtherUppercase(int ch) {        return false;    }     boolean isOtherAlphabetic(int ch) {        return false;    }     boolean isIdeographic(int ch) {        return false;    }     // Character <= 0xff (basic latin) is handled by internal fast-path    // to avoid initializing large tables.    // Note: performance of this "fast-path" code may be sub-optimal    // in negative cases for some accessors due to complicated ranges.    // Should revisit after optimization of table initialization.     static final CharacterData of(int ch) {        if (ch >>> 8 == 0) {     // fast-path            return CharacterDataLatin1.instance;        } else {            switch(ch >>> 16) {  //plane 00-16            case(0):                return CharacterData00.instance;            case(1):                return CharacterData01.instance;            case(2):                return CharacterData02.instance;            case(14):                return CharacterData0E.instance;            case(15):   // Private Use            case(16):   // Private Use                return CharacterDataPrivateUse.instance;            default:                return CharacterDataUndefined.instance;            }        }    }}