81 lines
3.1 KiB
Java
81 lines
3.1 KiB
Java
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/*
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* Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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package java.lang;
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abstract class CharacterData {
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abstract int getProperties(int ch);
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abstract int getType(int ch);
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abstract boolean isWhitespace(int ch);
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abstract boolean isMirrored(int ch);
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abstract boolean isJavaIdentifierStart(int ch);
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abstract boolean isJavaIdentifierPart(int ch);
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abstract boolean isUnicodeIdentifierStart(int ch);
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abstract boolean isUnicodeIdentifierPart(int ch);
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abstract boolean isIdentifierIgnorable(int ch);
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abstract int toLowerCase(int ch);
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abstract int toUpperCase(int ch);
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abstract int toTitleCase(int ch);
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abstract int digit(int ch, int radix);
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abstract int getNumericValue(int ch);
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abstract byte getDirectionality(int ch);
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//need to implement for JSR204
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int toUpperCaseEx(int ch) {
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return toUpperCase(ch);
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}
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char[] toUpperCaseCharArray(int ch) {
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return null;
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}
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// Character <= 0xff (basic latin) is handled by internal fast-path
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// to avoid initializing large tables.
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// Note: performance of this "fast-path" code may be sub-optimal
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// in negative cases for some accessors due to complicated ranges.
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// Should revisit after optimization of table initialization.
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static final CharacterData of(int ch) {
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if (ch >>> 8 == 0) { // fast-path
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return CharacterDataLatin1.instance;
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} else {
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switch(ch >>> 16) { //plane 00-16
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case(0):
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return CharacterData00.instance;
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case(1):
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return CharacterData01.instance;
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case(2):
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return CharacterData02.instance;
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case(14):
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return CharacterData0E.instance;
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case(15): // Private Use
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case(16): // Private Use
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return CharacterDataPrivateUse.instance;
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default:
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return CharacterDataUndefined.instance;
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}
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}
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}
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}
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