001/** 002 * Logback: the reliable, generic, fast and flexible logging framework. 003 * Copyright (C) 1999-2015, QOS.ch. All rights reserved. 004 * 005 * This program and the accompanying materials are dual-licensed under 006 * either the terms of the Eclipse Public License v1.0 as published by 007 * the Eclipse Foundation 008 * 009 * or (per the licensee's choosing) 010 * 011 * under the terms of the GNU Lesser General Public License version 2.1 012 * as published by the Free Software Foundation. 013 */ 014package ch.qos.logback.core.pattern.util; 015 016/** 017 * This implementation is intended for use in PatternLayout. 018 * 019 * @author Ceki Gülcü 020 */ 021public class RestrictedEscapeUtil implements IEscapeUtil { 022 023 public void escape(String escapeChars, StringBuffer buf, char next, int pointer) { 024 if (escapeChars.indexOf(next) >= 0) { 025 buf.append(next); 026 } else { 027 // restitute the escape char (because it was consumed 028 // before this method was called). 029 buf.append("\\"); 030 // restitute the next character 031 buf.append(next); 032 } 033 } 034 035}