70 lines
2.5 KiB
Java
70 lines
2.5 KiB
Java
/*
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* Copyright (c) 2020, 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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package org.openjdk.asmtools.asmutils;
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/**
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* Utility class to share common tools/methods.
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*/
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public class StringUtils {
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/**
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* Converts CONSTANT_Utf8_info string to a printable string for jdis/jdes.
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* @param utf8 UTF8 string taken from within ConstantPool of a class file
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* @return output string for jcod/jasm
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*/
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public static String Utf8ToString(String utf8) {
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StringBuilder sb = new StringBuilder("\"");
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for (int k = 0; k < utf8.length(); k++) {
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char c = utf8.charAt(k);
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switch (c) {
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case '\t':
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sb.append('\\').append('t');
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break;
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case '\n':
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sb.append('\\').append('n');
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break;
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case '\r':
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sb.append('\\').append('r');
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break;
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case '\b':
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sb.append('\\').append('b');
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break;
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case '\f':
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sb.append('\\').append('f');
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break;
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case '\"':
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sb.append('\\').append('\"');
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break;
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case '\'':
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sb.append('\\').append('\'');
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break;
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case '\\':
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sb.append('\\').append('\\');
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break;
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default:
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sb.append(c);
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}
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}
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return sb.append('\"').toString();
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}
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}
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