author | ohair |
Tue, 25 May 2010 15:58:33 -0700 | |
changeset 5506 | 202f599c92aa |
parent 715 | f16baef3a20e |
child 24969 | afa6934dd8e8 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997, 2008, 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. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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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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468
642c8c0be52e
6695553: Cleanup GPLv2+SPL legal notices in hat sources
ohair
parents:
2
diff
changeset
|
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/* |
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* The Original Code is HAT. The Initial Developer of the |
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* Original Code is Bill Foote, with contributions from others |
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468
642c8c0be52e
6695553: Cleanup GPLv2+SPL legal notices in hat sources
ohair
parents:
2
diff
changeset
|
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* at JavaSoft/Sun. |
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*/ |
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package com.sun.tools.hat.internal.util; |
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import java.util.*; |
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/** |
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* Miscellaneous functions I couldn't think of a good place to put. |
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* |
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* @author Bill Foote |
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*/ |
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public class Misc { |
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private static char[] digits = { '0', '1', '2', '3', '4', '5', '6', '7', |
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'8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; |
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public final static String toHex(int addr) { |
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char[] buf = new char[8]; |
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int i = 0; |
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for (int s = 28; s >= 0; s -= 4) { |
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buf[i++] = digits[(addr >> s) & 0xf]; |
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} |
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return "0x" + new String(buf); |
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} |
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public final static String toHex(long addr) { |
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return "0x" + Long.toHexString(addr); |
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} |
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public final static long parseHex(String value) { |
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long result = 0; |
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if (value.length() < 2 || value.charAt(0) != '0' || |
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value.charAt(1) != 'x') { |
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return -1L; |
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} |
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for(int i = 2; i < value.length(); i++) { |
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result *= 16; |
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char ch = value.charAt(i); |
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if (ch >= '0' && ch <= '9') { |
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result += (ch - '0'); |
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} else if (ch >= 'a' && ch <= 'f') { |
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result += (ch - 'a') + 10; |
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} else if (ch >= 'A' && ch <= 'F') { |
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result += (ch - 'A') + 10; |
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} else { |
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throw new NumberFormatException("" + ch |
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+ " is not a valid hex digit"); |
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} |
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} |
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return result; |
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} |
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public static String encodeHtml(String str) { |
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final int len = str.length(); |
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StringBuffer buf = new StringBuffer(); |
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for (int i = 0; i < len; i++) { |
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char ch = str.charAt(i); |
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if (ch == '<') { |
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buf.append("<"); |
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} else if (ch == '>') { |
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buf.append(">"); |
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} else if (ch == '"') { |
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buf.append("""); |
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} else if (ch == '\'') { |
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buf.append("'"); |
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} else if (ch == '&') { |
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buf.append("&"); |
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} else if (ch < ' ') { |
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buf.append("&#" + Integer.toString(ch) + ";"); |
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} else { |
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int c = (ch & 0xFFFF); |
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if (c > 127) { |
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buf.append("&#" + Integer.toString(c) + ";"); |
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} else { |
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buf.append(ch); |
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} |
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} |
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} |
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return buf.toString(); |
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} |
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} |