Java String Remove removeExtraSpacesAndSpecialCharacters(String toSearch, boolean setAllToLowerCase)

Description

remove Extra Spaces And Special Characters

License

Open Source License

Declaration

public static char[] removeExtraSpacesAndSpecialCharacters(String toSearch, boolean setAllToLowerCase) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2004, 2007 Boeing.// ww  w  .j av a 2s.  c  om
 * 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
 *
 * Contributors:
 *     Boeing - initial API and implementation
 *******************************************************************************/

import java.util.Arrays;

public class Main {
    private static char[] PUNCTUATION = null;

    public static char[] removeExtraSpacesAndSpecialCharacters(String toSearch, boolean setAllToLowerCase) {
        boolean lastCharacterAddedWasWhiteSpace = false;
        StringBuilder searchString = new StringBuilder();
        for (int index = 0; index < toSearch.length(); index++) {
            char currChar = toSearch.charAt(index);
            if (setAllToLowerCase) {
                currChar = Character.toLowerCase(currChar);
            }
            if (currChar != '\r' && currChar != '\n') {
                if (isPunctuationOrApostrophe(currChar)) {
                    currChar = ' ';
                }
                if (Character.isWhitespace(currChar)) {
                    if (!lastCharacterAddedWasWhiteSpace) {
                        searchString.append(currChar);
                        lastCharacterAddedWasWhiteSpace = true;
                    }
                } else {
                    searchString.append(currChar);
                    lastCharacterAddedWasWhiteSpace = false;
                }
            }
        }
        return searchString.toString().trim().toCharArray();
    }

    public static boolean isPunctuationOrApostrophe(char character) {
        return Arrays.binarySearch(PUNCTUATION, character) > 0 || character == '\'';
    }
}

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