Here you can find the source of removePunctuation(String value)
public static String removePunctuation(String value)
//package com.java2s; /* MarcWorx MARC Library - Utilities for manipulation of MARC records Copyright (C) 2013 Todd Walker, Talwood Solutions This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.// w w w .java 2 s . c o m This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.util.Arrays; public class Main { public final static char DECIMAL_POINT = 0x002E; public static String removePunctuation(String value) { return removePunctuation(value, null); } public static String removePunctuation(String value, char exceptions[]) { if (value == null) { return ""; } if (exceptions != null) { // Must not assume we can modify the character array passed into us // must make a copy.... char copy[] = new char[exceptions.length]; System.arraycopy(exceptions, 0, copy, 0, exceptions.length); exceptions = copy; Arrays.sort(exceptions); } boolean exception = false; StringBuilder filteredBuffer = new StringBuilder(value.length()); for (int i = 0; i < value.length(); i++) { char testChar = value.charAt(i); if (exceptions != null) { exception = (Arrays.binarySearch(exceptions, testChar) >= 0); } if (exception || Character.isLetterOrDigit(testChar) || testChar == DECIMAL_POINT || Character.isWhitespace(testChar)) { filteredBuffer.append(testChar); } } return filteredBuffer.toString(); } public static int length(String source) { int result = 0; if (isNotEmpty(source)) { result = source.length(); } return result; } public static boolean isNotEmpty(String str) { return !isEmpty(str); } public static boolean isEmpty(String str) { return (str == null || str.length() == 0); } }