--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/util/locale/LocaleUtils.java Thu Apr 14 15:59:47 2011 +0900
@@ -0,0 +1,224 @@
+/*
+ * Copyright (c) 2010, 2011, 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. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+/*
+ *******************************************************************************
+ * Copyright (C) 2009, International Business Machines Corporation and *
+ * others. All Rights Reserved. *
+ *******************************************************************************
+ */
+package sun.util.locale;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * Collection of static utility methods for Locale support. The
+ * methods which manipulate characters or strings support ASCII only.
+ */
+public final class LocaleUtils {
+
+ private LocaleUtils() {
+ }
+
+ /**
+ * Compares two ASCII Strings s1 and s2, ignoring case.
+ */
+ public static boolean caseIgnoreMatch(String s1, String s2) {
+ if (s1 == s2) {
+ return true;
+ }
+
+ int len = s1.length();
+ if (len != s2.length()) {
+ return false;
+ }
+
+ for (int i = 0; i < len; i++) {
+ char c1 = s1.charAt(i);
+ char c2 = s2.charAt(i);
+ if (c1 != c2 && toLower(c1) != toLower(c2)) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ static int caseIgnoreCompare(String s1, String s2) {
+ if (s1 == s2) {
+ return 0;
+ }
+ return toLowerString(s1).compareTo(toLowerString(s2));
+ }
+
+ static char toUpper(char c) {
+ return isLower(c) ? (char)(c - 0x20) : c;
+ }
+
+ static char toLower(char c) {
+ return isUpper(c) ? (char)(c + 0x20) : c;
+ }
+
+ /**
+ * Converts the given ASCII String to lower-case.
+ */
+ public static String toLowerString(String s) {
+ int len = s.length();
+ int idx = 0;
+ for (; idx < len; idx++) {
+ if (isUpper(s.charAt(idx))) {
+ break;
+ }
+ }
+ if (idx == len) {
+ return s;
+ }
+
+ char[] buf = new char[len];
+ for (int i = 0; i < len; i++) {
+ char c = s.charAt(i);
+ buf[i] = (i < idx) ? c : toLower(c);
+ }
+ return new String(buf);
+ }
+
+ static String toUpperString(String s) {
+ int len = s.length();
+ int idx = 0;
+ for (; idx < len; idx++) {
+ if (isLower(s.charAt(idx))) {
+ break;
+ }
+ }
+ if (idx == len) {
+ return s;
+ }
+
+ char[] buf = new char[len];
+ for (int i = 0; i < len; i++) {
+ char c = s.charAt(i);
+ buf[i] = (i < idx) ? c : toUpper(c);
+ }
+ return new String(buf);
+ }
+
+ static String toTitleString(String s) {
+ int len;
+ if ((len = s.length()) == 0) {
+ return s;
+ }
+ int idx = 0;
+ if (!isLower(s.charAt(idx))) {
+ for (idx = 1; idx < len; idx++) {
+ if (isUpper(s.charAt(idx))) {
+ break;
+ }
+ }
+ }
+ if (idx == len) {
+ return s;
+ }
+
+ char[] buf = new char[len];
+ for (int i = 0; i < len; i++) {
+ char c = s.charAt(i);
+ if (i == 0 && idx == 0) {
+ buf[i] = toUpper(c);
+ } else if (i < idx) {
+ buf[i] = c;
+ } else {
+ buf[i] = toLower(c);
+ }
+ }
+ return new String(buf);
+ }
+
+ private static boolean isUpper(char c) {
+ return c >= 'A' && c <= 'Z';
+ }
+
+ private static boolean isLower(char c) {
+ return c >= 'a' && c <= 'z';
+ }
+
+ static boolean isAlpha(char c) {
+ return (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z');
+ }
+
+ static boolean isAlphaString(String s) {
+ int len = s.length();
+ for (int i = 0; i < len; i++) {
+ if (!isAlpha(s.charAt(i))) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ static boolean isNumeric(char c) {
+ return (c >= '0' && c <= '9');
+ }
+
+ static boolean isNumericString(String s) {
+ int len = s.length();
+ for (int i = 0; i < len; i++) {
+ if (!isNumeric(s.charAt(i))) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ static boolean isAlphaNumeric(char c) {
+ return isAlpha(c) || isNumeric(c);
+ }
+
+ static boolean isAlphaNumericString(String s) {
+ int len = s.length();
+ for (int i = 0; i < len; i++) {
+ if (!isAlphaNumeric(s.charAt(i))) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ static boolean isEmpty(String str) {
+ return str == null || str.length() == 0;
+ }
+
+ static boolean isEmpty(Set<?> set) {
+ return set == null || set.isEmpty();
+ }
+
+ static boolean isEmpty(Map<?, ?> map) {
+ return map == null || map.isEmpty();
+ }
+
+ static boolean isEmpty(List<?> list) {
+ return list == null || list.isEmpty();
+ }
+}