| /* |
| * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| @test |
| @bug 4217441 4533872 4900935 8020037 8032012 8041791 8042589 8054307 |
| @summary toLowerCase should lower-case Greek Sigma correctly depending |
| on the context (final/non-final). Also it should handle |
| Locale specific (lt, tr, and az) lowercasings and supplementary |
| characters correctly. |
| */ |
| |
| import java.util.Locale; |
| |
| public class ToLowerCase { |
| |
| public static void main(String[] args) { |
| Locale turkish = new Locale("tr", "TR"); |
| Locale lt = new Locale("lt"); // Lithanian |
| Locale az = new Locale("az"); // Azeri |
| |
| // Greek Sigma final/non-final tests |
| test("\u03A3", Locale.US, "\u03C3"); |
| test("LAST\u03A3", Locale.US, "last\u03C2"); |
| test("MID\u03A3DLE", Locale.US, "mid\u03C3dle"); |
| test("WORD1 \u03A3 WORD3", Locale.US, "word1 \u03C3 word3"); |
| test("WORD1 LAST\u03A3 WORD3", Locale.US, "word1 last\u03C2 word3"); |
| test("WORD1 MID\u03A3DLE WORD3", Locale.US, "word1 mid\u03C3dle word3"); |
| test("\u0399\u0395\u03a3\u03a5\u03a3 \u03a7\u03a1\u0399\u03a3\u03a4\u039f\u03a3", Locale.US, |
| "\u03b9\u03b5\u03c3\u03c5\u03c2 \u03c7\u03c1\u03b9\u03c3\u03c4\u03bf\u03c2"); // "IESUS XRISTOS" |
| |
| // Explicit dot above for I's and J's whenever there are more accents above (Lithanian) |
| test("I", lt, "i"); |
| test("I\u0300", lt, "i\u0307\u0300"); // "I" followed by COMBINING GRAVE ACCENT (cc==230) |
| test("I\u0316", lt, "i\u0316"); // "I" followed by COMBINING GRAVE ACCENT BELOW (cc!=230) |
| test("J", lt, "j"); |
| test("J\u0300", lt, "j\u0307\u0300"); // "J" followed by COMBINING GRAVE ACCENT (cc==230) |
| test("J\u0316", lt, "j\u0316"); // "J" followed by COMBINING GRAVE ACCENT BELOW (cc!=230) |
| test("\u012E", lt, "\u012F"); |
| test("\u012E\u0300", lt, "\u012F\u0307\u0300"); // "I (w/ OGONEK)" followed by COMBINING GRAVE ACCENT (cc==230) |
| test("\u012E\u0316", lt, "\u012F\u0316"); // "I (w/ OGONEK)" followed by COMBINING GRAVE ACCENT BELOW (cc!=230) |
| test("\u00CC", lt, "i\u0307\u0300"); |
| test("\u00CD", lt, "i\u0307\u0301"); |
| test("\u0128", lt, "i\u0307\u0303"); |
| test("I\u0300", Locale.US, "i\u0300"); // "I" followed by COMBINING GRAVE ACCENT (cc==230) |
| test("J\u0300", Locale.US, "j\u0300"); // "J" followed by COMBINING GRAVE ACCENT (cc==230) |
| test("\u012E\u0300", Locale.US, "\u012F\u0300"); // "I (w/ OGONEK)" followed by COMBINING GRAVE ACCENT (cc==230) |
| test("\u00CC", Locale.US, "\u00EC"); |
| test("\u00CD", Locale.US, "\u00ED"); |
| test("\u0128", Locale.US, "\u0129"); |
| |
| // I-dot tests |
| test("\u0130", turkish, "i"); |
| test("\u0130", az, "i"); |
| test("\u0130", lt, "\u0069\u0307"); |
| test("\u0130", Locale.US, "\u0069\u0307"); |
| test("\u0130", Locale.JAPAN, "\u0069\u0307"); |
| test("\u0130", Locale.ROOT, "\u0069\u0307"); |
| |
| // Remove dot_above in the sequence I + dot_above (Turkish and Azeri) |
| test("I\u0307", turkish, "i"); |
| test("I\u0307", az, "i"); |
| test("J\u0307", turkish, "j\u0307"); |
| test("J\u0307", az, "j\u0307"); |
| |
| // Unless an I is before a dot_above, it turns into a dotless i (Turkish and Azeri) |
| test("I", turkish, "\u0131"); |
| test("I", az, "\u0131"); |
| test("I", Locale.US, "i"); |
| test("IABC", turkish, "\u0131abc"); |
| test("IABC", az, "\u0131abc"); |
| test("IABC", Locale.US, "iabc"); |
| |
| // Supplementary character tests |
| // |
| // U+10400 ("\uD801\uDC00"): DESERET CAPITAL LETTER LONG I |
| // U+10401 ("\uD801\uDC01"): DESERET CAPITAL LETTER LONG E |
| // U+10402 ("\uD801\uDC02"): DESERET CAPITAL LETTER LONG A |
| // U+10428 ("\uD801\uDC28"): DESERET SMALL LETTER LONG I |
| // U+10429 ("\uD801\uDC29"): DESERET SMALL LETTER LONG E |
| // U+1042A ("\uD801\uDC2A"): DESERET SMALL LETTER LONG A |
| // |
| // valid code point tests: |
| test("\uD801\uDC00\uD801\uDC01\uD801\uDC02", Locale.US, "\uD801\uDC28\uD801\uDC29\uD801\uDC2A"); |
| test("\uD801\uDC00A\uD801\uDC01B\uD801\uDC02C", Locale.US, "\uD801\uDC28a\uD801\uDC29b\uD801\uDC2Ac"); |
| // invalid code point tests: |
| test("\uD800\uD800\uD801A\uDC00\uDC00\uDC00B", Locale.US, "\uD800\uD800\uD801a\uDC00\uDC00\uDC00b"); |
| |
| // lower/uppercase + surrogates |
| test("a\uD801\uDC1c", Locale.ROOT, "a\uD801\uDC44"); |
| test("A\uD801\uDC1c", Locale.ROOT, "a\uD801\uDC44"); |
| test("a\uD801\uDC00\uD801\uDC01\uD801\uDC02", Locale.US, "a\uD801\uDC28\uD801\uDC29\uD801\uDC2A"); |
| test("A\uD801\uDC00\uD801\uDC01\uD801\uDC02", Locale.US, "a\uD801\uDC28\uD801\uDC29\uD801\uDC2A"); |
| |
| // test bmp + supp1 |
| StringBuilder src = new StringBuilder(0x20000); |
| StringBuilder exp = new StringBuilder(0x20000); |
| for (int cp = 0; cp < 0x20000; cp++) { |
| if (cp >= Character.MIN_HIGH_SURROGATE && cp <= Character.MAX_HIGH_SURROGATE) { |
| continue; |
| } |
| if (cp == 0x0130) { |
| // Although UnicodeData.txt has the lower case char as \u0069, it should be |
| // handled with the rules in SpecialCasing.txt, i.e., \u0069\u0307 in |
| // non Turkic locales. |
| continue; |
| } |
| int lowerCase = Character.toLowerCase(cp); |
| if (lowerCase == -1) { //Character.ERROR |
| continue; |
| } |
| src.appendCodePoint(cp); |
| exp.appendCodePoint(lowerCase); |
| } |
| test(src.toString(), Locale.US, exp.toString()); |
| |
| // test latin1 |
| src = new StringBuilder(0x100); |
| exp = new StringBuilder(0x100); |
| for (int cp = 0; cp < 0x100; cp++) { |
| int lowerCase = Character.toLowerCase(cp); |
| if (lowerCase == -1) { //Character.ERROR |
| continue; |
| } |
| src.appendCodePoint(cp); |
| exp.appendCodePoint(lowerCase); |
| } |
| test(src.toString(), Locale.US, exp.toString()); |
| |
| // test non-latin1 -> latin1 |
| src = new StringBuilder(0x100).append("abc"); |
| exp = new StringBuilder(0x100).append("abc"); |
| for (int cp = 0x100; cp < 0x10000; cp++) { |
| int lowerCase = Character.toLowerCase(cp); |
| if (lowerCase < 0x100 && cp != '\u0130') { |
| src.appendCodePoint(cp); |
| exp.appendCodePoint(lowerCase); |
| } |
| } |
| test(src.toString(), Locale.US, exp.toString()); |
| } |
| |
| static void test(String in, Locale locale, String expected) { |
| test0(in, locale,expected); |
| for (String[] ss : new String[][] { |
| new String[] {"abc", "abc"}, |
| new String[] {"aBc", "abc"}, |
| new String[] {"ABC", "abc"}, |
| new String[] {"ab\u4e00", "ab\u4e00"}, |
| new String[] {"aB\u4e00", "ab\u4e00"}, |
| new String[] {"AB\u4e00", "ab\u4e00"}, |
| new String[] {"ab\uD800\uDC00", "ab\uD800\uDC00"}, |
| new String[] {"aB\uD800\uDC00", "ab\uD800\uDC00"}, |
| new String[] {"AB\uD800\uDC00", "ab\uD800\uDC00"}, |
| new String[] {"ab\uD801\uDC1C", "ab\uD801\uDC44"}, |
| new String[] {"aB\uD801\uDC1C", "ab\uD801\uDC44"}, |
| new String[] {"AB\uD801\uDC1C", "ab\uD801\uDC44"}, |
| |
| }) { |
| test0(ss[0] + " " + in, locale, ss[1] + " " + expected); |
| test0(in + " " + ss[0], locale, expected + " " + ss[1]); |
| } |
| } |
| |
| static void test0(String in, Locale locale, String expected) { |
| String result = in.toLowerCase(locale); |
| if (!result.equals(expected)) { |
| System.err.println("input: " + in + ", locale: " + locale + |
| ", expected: " + expected + ", actual: " + result); |
| throw new RuntimeException(); |
| } |
| } |
| } |