01 /*
02 * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
03 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04 *
05 * This code is free software; you can redistribute it and/or modify it
06 * under the terms of the GNU General Public License version 2 only, as
07 * published by the Free Software Foundation. Sun designates this
08 * particular file as subject to the "Classpath" exception as provided
09 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package java.lang;
27
28 abstract class CharacterData {
29 abstract int getProperties(int ch);
30
31 abstract int getType(int ch);
32
33 abstract boolean isWhitespace(int ch);
34
35 abstract boolean isMirrored(int ch);
36
37 abstract boolean isJavaIdentifierStart(int ch);
38
39 abstract boolean isJavaIdentifierPart(int ch);
40
41 abstract boolean isUnicodeIdentifierStart(int ch);
42
43 abstract boolean isUnicodeIdentifierPart(int ch);
44
45 abstract boolean isIdentifierIgnorable(int ch);
46
47 abstract int toLowerCase(int ch);
48
49 abstract int toUpperCase(int ch);
50
51 abstract int toTitleCase(int ch);
52
53 abstract int digit(int ch, int radix);
54
55 abstract int getNumericValue(int ch);
56
57 abstract byte getDirectionality(int ch);
58
59 //need to implement for JSR204
60 int toUpperCaseEx(int ch) {
61 return toUpperCase(ch);
62 }
63
64 char[] toUpperCaseCharArray(int ch) {
65 return null;
66 }
67
68 // Character <= 0xff (basic latin) is handled by internal fast-path
69 // to avoid initializing large tables.
70 // Note: performance of this "fast-path" code may be sub-optimal
71 // in negative cases for some accessors due to complicated ranges.
72 // Should revisit after optimization of table initialization.
73
74 static final CharacterData of(int ch) {
75 if (ch >>> 8 == 0) { // fast-path
76 return CharacterDataLatin1.instance;
77 } else {
78 switch (ch >>> 16) { //plane 00-16
79 case (0):
80 return CharacterData00.instance;
81 case (1):
82 return CharacterData01.instance;
83 case (2):
84 return CharacterData02.instance;
85 case (14):
86 return CharacterData0E.instance;
87 case (15): // Private Use
88 case (16): // Private Use
89 return CharacterDataPrivateUse.instance;
90 default:
91 return CharacterDataUndefined.instance;
92 }
93 }
94 }
95 }
|