115 lines
3.4 KiB
Java
115 lines
3.4 KiB
Java
/*
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* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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public class Util {
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private Util() { }
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// Returns -1 if equal, o.w. returns index of first difference
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//
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public static int cmp(byte[] ba, byte[] bb) {
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int n = Math.min(ba.length, bb.length);
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for (int i = 0; i < n; i++) {
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if ((i >= ba.length) || (i >= bb.length))
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return i;
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if (ba[i] != bb[i])
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return i;
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}
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if (ba.length != bb.length)
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return 0;
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return -1;
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}
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// Returns -1 if equal, o.w. returns index of first difference
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//
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public static int cmp(char[] ca, char[] cb) {
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int n = Math.min(ca.length, cb.length);
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for (int i = 0; i < n; i++) {
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if ((i >= ca.length) || (i >= cb.length))
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return i;
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if (ca[i] != cb[i])
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return i;
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}
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if (ca.length != cb.length)
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return 0;
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return -1;
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}
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public static String toString(byte[] ba, int off, int len) {
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StringBuffer sb = new StringBuffer();
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for (int i = off; i < off + len; i++) {
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int c = ba[i];
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if (c == '\\') {
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sb.append("\\\\");
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continue;
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}
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if ((c >= ' ') && (c < 0x7f)) {
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sb.append((char)c);
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continue;
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}
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sb.append("\\x");
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sb.append(Integer.toHexString(c & 0xff));
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}
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return sb.toString();
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}
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public static String toString(byte[] ba) {
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return toString(ba, 0, ba.length);
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}
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public static String toString(char[] ca, int off, int len) {
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StringBuffer sb = new StringBuffer();
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for (int i = off; i < off + len; i++) {
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char c = ca[i];
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if (c == '\\') {
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sb.append("\\\\");
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continue;
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}
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if ((c >= ' ') && (c < 0x7f)) {
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sb.append(c);
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continue;
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}
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sb.append("\\u");
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String s = Integer.toHexString(c);
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while (s.length() < 4)
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s = "0" + s;
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sb.append(s);
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}
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return sb.toString();
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}
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public static String toString(char[] ca) {
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return toString(ca, 0, ca.length);
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}
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public static String toString(String s) {
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return toString(s.toCharArray());
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}
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public static String toString(char c) {
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return toString(new char[]{ c });
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}
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}
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