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| 1 | /* | ||
| 2 | * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.lang; | ||
| 27 | |||
| 28 | abstract class CharacterData { | ||
| 29 | abstract int getProperties(int ch); | ||
| 30 | abstract int getType(int ch); | ||
| 31 | abstract boolean isWhitespace(int ch); | ||
| 32 | abstract boolean isMirrored(int ch); | ||
| 33 | abstract boolean isJavaIdentifierStart(int ch); | ||
| 34 | abstract boolean isJavaIdentifierPart(int ch); | ||
| 35 | abstract boolean isUnicodeIdentifierStart(int ch); | ||
| 36 | abstract boolean isUnicodeIdentifierPart(int ch); | ||
| 37 | abstract boolean isIdentifierIgnorable(int ch); | ||
| 38 | abstract int toLowerCase(int ch); | ||
| 39 | abstract int toUpperCase(int ch); | ||
| 40 | abstract int toTitleCase(int ch); | ||
| 41 | abstract int digit(int ch, int radix); | ||
| 42 | abstract int getNumericValue(int ch); | ||
| 43 | abstract byte getDirectionality(int ch); | ||
| 44 | |||
| 45 | //need to implement for JSR204 | ||
| 46 | int toUpperCaseEx(int ch) { | ||
| 47 | return toUpperCase(ch); | ||
| 48 | } | ||
| 49 | |||
| 50 | char[] toUpperCaseCharArray(int ch) { | ||
| 51 | return null; | ||
| 52 | } | ||
| 53 | |||
| 54 | boolean isOtherLowercase(int ch) { | ||
| 55 | return false; | ||
| 56 | } | ||
| 57 | |||
| 58 | boolean isOtherUppercase(int ch) { | ||
| 59 | return false; | ||
| 60 | } | ||
| 61 | |||
| 62 | boolean isOtherAlphabetic(int ch) { | ||
| 63 | return false; | ||
| 64 | } | ||
| 65 | |||
| 66 | boolean isIdeographic(int ch) { | ||
| 67 | return false; | ||
| 68 | } | ||
| 69 | |||
| 70 | // Character <= 0xff (basic latin) is handled by internal fast-path | ||
| 71 | // to avoid initializing large tables. | ||
| 72 | // Note: performance of this "fast-path" code may be sub-optimal | ||
| 73 | // in negative cases for some accessors due to complicated ranges. | ||
| 74 | // Should revisit after optimization of table initialization. | ||
| 75 | |||
| 76 | static final CharacterData of(int ch) { | ||
| 77 | if (ch >>> 8 == 0) { // fast-path | ||
| 78 | return CharacterDataLatin1.instance; | ||
| 79 | } else { | ||
| 80 | switch(ch >>> 16) { //plane 00-16 | ||
| 81 | case(0): | ||
| 82 | return CharacterData00.instance; | ||
| 83 | case(1): | ||
| 84 | return CharacterData01.instance; | ||
| 85 | case(2): | ||
| 86 | return CharacterData02.instance; | ||
| 87 | case(14): | ||
| 88 | return CharacterData0E.instance; | ||
| 89 | case(15): // Private Use | ||
| 90 | case(16): // Private Use | ||
| 91 | return CharacterDataPrivateUse.instance; | ||
| 92 | default: | ||
| 93 | return CharacterDataUndefined.instance; | ||
| 94 | } | ||
| 95 | } | ||
| 96 | } | ||
| 97 | } | ||