Here you can find the source of cleanUpEmptyLinesAndIndent(String input)
public static String cleanUpEmptyLinesAndIndent(String input)
//package com.java2s; /*/*from ww w . ja va 2s. c o m*/ * Copyright (c) 2013 Cisco Systems, Inc. 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 */ import java.util.Scanner; public class Main { public static String cleanUpEmptyLinesAndIndent(String input) { StringBuffer output = new StringBuffer(); Scanner scanner = new Scanner(input); while (scanner.hasNextLine()) { String line = scanner.nextLine(); line = line.replaceAll("\t", " "); while (line.contains(" ")) { line = line.replaceAll(" ", " "); } line = line.trim(); if (line.length() > 0) { output.append(line); output.append("\n"); } } return output.toString(); } }