Here you can find the source of quote(String val)
public static String quote(String val)
//package com.java2s; /*/*from w w w . jav a2s .co m*/ * Copyright (c) 2008-2013 Computer Network Information Center (CNIC), Chinese Academy of Sciences. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ public class Main { public static String quote(String val) { if (val != null && val.length() > 0) { StringBuffer buffer = new StringBuffer(); for (int i = 0; i < val.length(); i++) { char ch = val.charAt(i); switch (ch) { case '\'': buffer.append("\\'"); break; case '\"': buffer.append("\\\""); break; case '\n': buffer.append("\\n"); break; case '\r': buffer.append("\\r"); break; case '\t': buffer.append("\\t"); break; case '\\': buffer.append("\\\\"); break; case '%': buffer.append("\\%"); break; case '_': buffer.append("\\_"); break; default: buffer.append(ch); break; } } return buffer.toString(); } return val; } }