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 016import ch.qos.logback.core.CoreConstants; 017import ch.qos.logback.core.rolling.helper.FileNamePattern; 018 019/** 020 * This implementation is intended for use in {@link FileNamePattern}. 021 * 022 * @author Ceki Gülcü 023 */ 024public class AlmostAsIsEscapeUtil extends RestrictedEscapeUtil { 025 026 /** 027 * Do not perform any character escaping, except for '%', and ')'. 028 * 029 * <p> 030 * Here is the rationale. First, filename patterns do not include escape 031 * combinations such as \r or \n. Moreover, characters which have special 032 * meaning in logback parsers, such as '{', or '}' cannot be part of file names 033 * (so me thinks). The left parenthesis character has special meaning only if it 034 * is preceded by %. Thus, the only characters that needs escaping are '%' and 035 * ')'. 036 * 037 * <p> 038 * Note that this method assumes that it is called after the escape character 039 * has been consumed. 040 */ 041 public void escape(String escapeChars, StringBuffer buf, char next, int pointer) { 042 super.escape("" + CoreConstants.PERCENT_CHAR + CoreConstants.RIGHT_PARENTHESIS_CHAR, buf, next, pointer); 043 } 044}