2712N/A/*
2712N/A * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
2712N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
2712N/A *
2712N/A * This code is free software; you can redistribute it and/or modify it
2712N/A * under the terms of the GNU General Public License version 2 only, as
2712N/A * published by the Free Software Foundation. Oracle designates this
2712N/A * particular file as subject to the "Classpath" exception as provided
2712N/A * by Oracle in the LICENSE file that accompanied this code.
2712N/A *
2712N/A * This code is distributed in the hope that it will be useful, but WITHOUT
2712N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
2712N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
2712N/A * version 2 for more details (a copy is included in the LICENSE file that
2712N/A * accompanied this code).
2712N/A *
2712N/A * You should have received a copy of the GNU General Public License version
2712N/A * 2 along with this work; if not, write to the Free Software Foundation,
2712N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
2712N/A *
2712N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2712N/A * or visit www.oracle.com if you need additional information or have any
2712N/A * questions.
2712N/A */
2712N/A
2712N/A/*
2712N/A *******************************************************************************
2712N/A * Copyright (C) 2009, International Business Machines Corporation and *
2712N/A * others. All Rights Reserved. *
2712N/A *******************************************************************************
2712N/A */
2712N/Apackage sun.util.locale;
2712N/A
2712N/Apublic final class AsciiUtil {
2712N/A public static boolean caseIgnoreMatch(String s1, String s2) {
2712N/A if (s1 == s2) {
2712N/A return true;
2712N/A }
2712N/A int len = s1.length();
2712N/A if (len != s2.length()) {
2712N/A return false;
2712N/A }
2712N/A int i = 0;
2712N/A while (i < len) {
2712N/A char c1 = s1.charAt(i);
2712N/A char c2 = s2.charAt(i);
2712N/A if (c1 != c2 && toLower(c1) != toLower(c2)) {
2712N/A break;
2712N/A }
2712N/A i++;
2712N/A }
2712N/A return (i == len);
2712N/A }
2712N/A
2712N/A public static int caseIgnoreCompare(String s1, String s2) {
2712N/A if (s1 == s2) {
2712N/A return 0;
2712N/A }
2712N/A return AsciiUtil.toLowerString(s1).compareTo(AsciiUtil.toLowerString(s2));
2712N/A }
2712N/A
2712N/A
2712N/A public static char toUpper(char c) {
2712N/A if (c >= 'a' && c <= 'z') {
2712N/A c -= 0x20;
2712N/A }
2712N/A return c;
2712N/A }
2712N/A
2712N/A public static char toLower(char c) {
2712N/A if (c >= 'A' && c <= 'Z') {
2712N/A c += 0x20;
2712N/A }
2712N/A return c;
2712N/A }
2712N/A
2712N/A public static String toLowerString(String s) {
2712N/A int idx = 0;
2712N/A for (; idx < s.length(); idx++) {
2712N/A char c = s.charAt(idx);
2712N/A if (c >= 'A' && c <= 'Z') {
2712N/A break;
2712N/A }
2712N/A }
2712N/A if (idx == s.length()) {
2712N/A return s;
2712N/A }
2712N/A StringBuilder buf = new StringBuilder(s.substring(0, idx));
2712N/A for (; idx < s.length(); idx++) {
2712N/A buf.append(toLower(s.charAt(idx)));
2712N/A }
2712N/A return buf.toString();
2712N/A }
2712N/A
2712N/A public static String toUpperString(String s) {
2712N/A int idx = 0;
2712N/A for (; idx < s.length(); idx++) {
2712N/A char c = s.charAt(idx);
2712N/A if (c >= 'a' && c <= 'z') {
2712N/A break;
2712N/A }
2712N/A }
2712N/A if (idx == s.length()) {
2712N/A return s;
2712N/A }
2712N/A StringBuilder buf = new StringBuilder(s.substring(0, idx));
2712N/A for (; idx < s.length(); idx++) {
2712N/A buf.append(toUpper(s.charAt(idx)));
2712N/A }
2712N/A return buf.toString();
2712N/A }
2712N/A
2712N/A public static String toTitleString(String s) {
2712N/A if (s.length() == 0) {
2712N/A return s;
2712N/A }
2712N/A int idx = 0;
2712N/A char c = s.charAt(idx);
2712N/A if (!(c >= 'a' && c <= 'z')) {
2712N/A for (idx = 1; idx < s.length(); idx++) {
2712N/A if (c >= 'A' && c <= 'Z') {
2712N/A break;
2712N/A }
2712N/A }
2712N/A }
2712N/A if (idx == s.length()) {
2712N/A return s;
2712N/A }
2712N/A StringBuilder buf = new StringBuilder(s.substring(0, idx));
2712N/A if (idx == 0) {
2712N/A buf.append(toUpper(s.charAt(idx)));
2712N/A idx++;
2712N/A }
2712N/A for (; idx < s.length(); idx++) {
2712N/A buf.append(toLower(s.charAt(idx)));
2712N/A }
2712N/A return buf.toString();
2712N/A }
2712N/A
2712N/A public static boolean isAlpha(char c) {
2712N/A return (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z');
2712N/A }
2712N/A
2712N/A public static boolean isAlphaString(String s) {
2712N/A boolean b = true;
2712N/A for (int i = 0; i < s.length(); i++) {
2712N/A if (!isAlpha(s.charAt(i))) {
2712N/A b = false;
2712N/A break;
2712N/A }
2712N/A }
2712N/A return b;
2712N/A }
2712N/A
2712N/A public static boolean isNumeric(char c) {
2712N/A return (c >= '0' && c <= '9');
2712N/A }
2712N/A
2712N/A public static boolean isNumericString(String s) {
2712N/A boolean b = true;
2712N/A for (int i = 0; i < s.length(); i++) {
2712N/A if (!isNumeric(s.charAt(i))) {
2712N/A b = false;
2712N/A break;
2712N/A }
2712N/A }
2712N/A return b;
2712N/A }
2712N/A
2712N/A public static boolean isAlphaNumeric(char c) {
2712N/A return isAlpha(c) || isNumeric(c);
2712N/A }
2712N/A
2712N/A public static boolean isAlphaNumericString(String s) {
2712N/A boolean b = true;
2712N/A for (int i = 0; i < s.length(); i++) {
2712N/A if (!isAlphaNumeric(s.charAt(i))) {
2712N/A b = false;
2712N/A break;
2712N/A }
2712N/A }
2712N/A return b;
2712N/A }
2712N/A
2712N/A public static class CaseInsensitiveKey {
2712N/A private String _key;
2712N/A private int _hash;
2712N/A
2712N/A public CaseInsensitiveKey(String key) {
2712N/A _key = key;
2712N/A _hash = AsciiUtil.toLowerString(key).hashCode();
2712N/A }
2712N/A
2712N/A public boolean equals(Object o) {
2712N/A if (this == o) {
2712N/A return true;
2712N/A }
2712N/A if (o instanceof CaseInsensitiveKey) {
2712N/A return AsciiUtil.caseIgnoreMatch(_key, ((CaseInsensitiveKey)o)._key);
2712N/A }
2712N/A return false;
2712N/A }
2712N/A
2712N/A public int hashCode() {
2712N/A return _hash;
2712N/A }
2712N/A }
2712N/A}