1 /*
2 * Copyright (c) 1996, 2019, 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
24 */
25
26 /*
27 * (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved
28 * (C) Copyright IBM Corp. 1996-1998 - All Rights Reserved
29 *
30 * The original version of this source code and documentation is copyrighted
31 * and owned by Taligent, Inc., a wholly-owned subsidiary of IBM. These
32 * materials are provided under terms of a License Agreement between Taligent
33 * and Sun. This technology is protected by multiple US and International
34 * patents. This notice and attribution to Taligent may not be removed.
35 * Taligent is a registered trademark of Taligent, Inc.
36 *
37 */
38
39 package java.text;
40
41 import java.lang.Character;
42 import java.util.Vector;
43 import sun.text.CollatorUtilities;
44 import sun.text.normalizer.NormalizerBase;
45
46 /**
47 * The {@code CollationElementIterator} class is used as an iterator
48 * to walk through each character of an international string. Use the iterator
49 * to return the ordering priority of the positioned character. The ordering
50 * priority of a character, which we refer to as a key, defines how a character
51 * is collated in the given collation object.
52 *
53 * <p>
54 * For example, consider the following in Spanish:
55 * <blockquote>
56 * <pre>
57 * "ca" → the first key is key('c') and second key is key('a').
58 * "cha" → the first key is key('ch') and second key is key('a').
59 * </pre>
60 * </blockquote>
61 * And in German,
62 * <blockquote>
63 * <pre>
64 * "\u00e4b" → the first key is key('a'), the second key is key('e'), and
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1 /*
2 * Copyright (c) 1996, 2020, 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
24 */
25
26 /*
27 * (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved
28 * (C) Copyright IBM Corp. 1996-1998 - All Rights Reserved
29 *
30 * The original version of this source code and documentation is copyrighted
31 * and owned by Taligent, Inc., a wholly-owned subsidiary of IBM. These
32 * materials are provided under terms of a License Agreement between Taligent
33 * and Sun. This technology is protected by multiple US and International
34 * patents. This notice and attribution to Taligent may not be removed.
35 * Taligent is a registered trademark of Taligent, Inc.
36 *
37 */
38
39 package java.text;
40
41 import java.lang.Character;
42 import java.util.Vector;
43 import sun.text.CollatorUtilities;
44 import jdk.internal.icu.text.NormalizerBase;
45
46 /**
47 * The {@code CollationElementIterator} class is used as an iterator
48 * to walk through each character of an international string. Use the iterator
49 * to return the ordering priority of the positioned character. The ordering
50 * priority of a character, which we refer to as a key, defines how a character
51 * is collated in the given collation object.
52 *
53 * <p>
54 * For example, consider the following in Spanish:
55 * <blockquote>
56 * <pre>
57 * "ca" → the first key is key('c') and second key is key('a').
58 * "cha" → the first key is key('ch') and second key is key('a').
59 * </pre>
60 * </blockquote>
61 * And in German,
62 * <blockquote>
63 * <pre>
64 * "\u00e4b" → the first key is key('a'), the second key is key('e'), and
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