| /******************************************************************************* |
| * Copyright (c) 2009, 2010 Jesper Steen M¿ller and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Jesper Steen Moller - initial API and implementation |
| * Mukul Gandhi - bug 280798 - PsychoPath support for JDK 1.4 |
| *******************************************************************************/ |
| |
| package org.eclipse.wst.xml.xpath2.processor.internal.utils; |
| |
| /** |
| * String literal utilities |
| * |
| * |
| */ |
| public class LiteralUtils { |
| |
| /** |
| * Unquotes a quoted string, changing double quotes into single quotes as well. |
| * Examples (string delimited by > and <): |
| * >"A"< becomes >A< |
| * >'B'< becomes >B< |
| * >"A""B"< becomes >A"B< |
| * >"A""B"< becomes >A"B< |
| * >'A''''B'< becomes >A''B< |
| * >"A''''B"< becomes >A''''B< |
| * @param quotedString A quoted string possibly containing escaped quotes |
| * @return unquoted and unescaped string |
| */ |
| public static String unquote(String quotedString) { |
| int inputLength = quotedString.length(); |
| char quoteChar = quotedString.charAt(0); |
| if (quotedString.indexOf(quoteChar, 1) == inputLength-1) { |
| // The trivial case where there's no quotes in the middle of the string. |
| return quotedString.substring(1, inputLength-1); |
| } |
| |
| StringBuffer sb = new StringBuffer(); |
| for (int i = 1; i < inputLength-1; ++i) { |
| char ch = quotedString.charAt(i); |
| sb.append(ch); |
| if (ch == quoteChar) ++i; // Skip past second quote char (ensured by the lexer) |
| } |
| return sb.toString(); |
| } |
| } |
