1 /*
2 * Copyright (c) 2003, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 @test
26 @bug 4217441 4533872 4900935 8020037 8032012
27 @summary toLowerCase should lower-case Greek Sigma correctly depending
28 on the context (final/non-final). Also it should handle
29 Locale specific (lt, tr, and az) lowercasings and supplementary
30 characters correctly.
31 */
32
33 import java.util.Locale;
34
35 public class ToLowerCase {
36
37 public static void main(String[] args) {
38 Locale turkish = new Locale("tr", "TR");
39 Locale lt = new Locale("lt"); // Lithanian
40 Locale az = new Locale("az"); // Azeri
41
42 // Greek Sigma final/non-final tests
43 test("\u03A3", Locale.US, "\u03C3");
44 test("LAST\u03A3", Locale.US, "last\u03C2");
45 test("MID\u03A3DLE", Locale.US, "mid\u03C3dle");
46 test("WORD1 \u03A3 WORD3", Locale.US, "word1 \u03C3 word3");
47 test("WORD1 LAST\u03A3 WORD3", Locale.US, "word1 last\u03C2 word3");
48 test("WORD1 MID\u03A3DLE WORD3", Locale.US, "word1 mid\u03C3dle word3");
49 test("\u0399\u0395\u03a3\u03a5\u03a3 \u03a7\u03a1\u0399\u03a3\u03a4\u039f\u03a3", Locale.US,
50 "\u03b9\u03b5\u03c3\u03c5\u03c2 \u03c7\u03c1\u03b9\u03c3\u03c4\u03bf\u03c2"); // "IESUS XRISTOS"
51
52 // Explicit dot above for I's and J's whenever there are more accents above (Lithanian)
53 test("I", lt, "i");
54 test("I\u0300", lt, "i\u0307\u0300"); // "I" followed by COMBINING GRAVE ACCENT (cc==230)
55 test("I\u0316", lt, "i\u0316"); // "I" followed by COMBINING GRAVE ACCENT BELOW (cc!=230)
56 test("J", lt, "j");
57 test("J\u0300", lt, "j\u0307\u0300"); // "J" followed by COMBINING GRAVE ACCENT (cc==230)
58 test("J\u0316", lt, "j\u0316"); // "J" followed by COMBINING GRAVE ACCENT BELOW (cc!=230)
59 test("\u012E", lt, "\u012F");
60 test("\u012E\u0300", lt, "\u012F\u0307\u0300"); // "I (w/ OGONEK)" followed by COMBINING GRAVE ACCENT (cc==230)
61 test("\u012E\u0316", lt, "\u012F\u0316"); // "I (w/ OGONEK)" followed by COMBINING GRAVE ACCENT BELOW (cc!=230)
62 test("\u00CC", lt, "i\u0307\u0300");
63 test("\u00CD", lt, "i\u0307\u0301");
64 test("\u0128", lt, "i\u0307\u0303");
65 test("I\u0300", Locale.US, "i\u0300"); // "I" followed by COMBINING GRAVE ACCENT (cc==230)
66 test("J\u0300", Locale.US, "j\u0300"); // "J" followed by COMBINING GRAVE ACCENT (cc==230)
67 test("\u012E\u0300", Locale.US, "\u012F\u0300"); // "I (w/ OGONEK)" followed by COMBINING GRAVE ACCENT (cc==230)
68 test("\u00CC", Locale.US, "\u00EC");
69 test("\u00CD", Locale.US, "\u00ED");
70 test("\u0128", Locale.US, "\u0129");
71
72 // I-dot tests
73 test("\u0130", turkish, "i");
74 test("\u0130", az, "i");
75 test("\u0130", lt, "i");
76 test("\u0130", Locale.US, "i");
77
78 // Remove dot_above in the sequence I + dot_above (Turkish and Azeri)
79 test("I\u0307", turkish, "i");
80 test("I\u0307", az, "i");
81 test("J\u0307", turkish, "j\u0307");
82 test("J\u0307", az, "j\u0307");
83
84 // Unless an I is before a dot_above, it turns into a dotless i (Turkish and Azeri)
85 test("I", turkish, "\u0131");
86 test("I", az, "\u0131");
87 test("I", Locale.US, "i");
88 test("IABC", turkish, "\u0131abc");
89 test("IABC", az, "\u0131abc");
90 test("IABC", Locale.US, "iabc");
91
92 // Supplementary character tests
93 //
94 // U+10400 ("\uD801\uDC00"): DESERET CAPITAL LETTER LONG I
95 // U+10401 ("\uD801\uDC01"): DESERET CAPITAL LETTER LONG E
96 // U+10402 ("\uD801\uDC02"): DESERET CAPITAL LETTER LONG A
97 // U+10428 ("\uD801\uDC28"): DESERET SMALL LETTER LONG I
98 // U+10429 ("\uD801\uDC29"): DESERET SMALL LETTER LONG E
99 // U+1042A ("\uD801\uDC2A"): DESERET SMALL LETTER LONG A
100 //
101 // valid code point tests:
102 test("\uD801\uDC00\uD801\uDC01\uD801\uDC02", Locale.US, "\uD801\uDC28\uD801\uDC29\uD801\uDC2A");
103 test("\uD801\uDC00A\uD801\uDC01B\uD801\uDC02C", Locale.US, "\uD801\uDC28a\uD801\uDC29b\uD801\uDC2Ac");
104 // invalid code point tests:
105 test("\uD800\uD800\uD801A\uDC00\uDC00\uDC00B", Locale.US, "\uD800\uD800\uD801a\uDC00\uDC00\uDC00b");
106
107 // test bmp + supp1
108 StringBuilder src = new StringBuilder(0x20000);
109 StringBuilder exp = new StringBuilder(0x20000);
110 for (int cp = 0; cp < 0x20000; cp++) {
111 if (cp >= Character.MIN_HIGH_SURROGATE && cp <= Character.MAX_HIGH_SURROGATE) {
112 continue;
113 }
114 int lowerCase = Character.toLowerCase(cp);
115 if (lowerCase == -1) { //Character.ERROR
116 continue;
117 }
118 src.appendCodePoint(cp);
119 exp.appendCodePoint(lowerCase);
120 }
121 test(src.toString(), Locale.US, exp.toString());
122
123 }
124
125 static void test(String in, Locale locale, String expected) {
126 String result = in.toLowerCase(locale);
127 if (!result.equals(expected)) {
128 System.err.println("input: " + in + ", locale: " + locale +
129 ", expected: " + expected + ", actual: " + result);
130 throw new RuntimeException();
131 }
132 }
133 }