Java String Starts Wtih startsWithIgnoreWhitespaces(String prefix, String string)

Description

Tests if this string starts with the specified prefix (Ignoring whitespaces)

License

Apache License

Parameter

Parameter	Description
prefix	a parameter
string	a parameter

Return

boolean

Declaration

public static boolean startsWithIgnoreWhitespaces(String prefix, String string) 

Method Source Code

//package com.java2s;
/*/*  w ww.j a va 2 s.  c o  m*/
 * Copyright 2004,2005 The Apache Software Foundation.
 *
 * 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 {
    /**
     * Tests if this string starts with the specified prefix (Ignoring whitespaces)
     *
     * @param prefix
     * @param string
     * @return boolean
     */
    public static boolean startsWithIgnoreWhitespaces(String prefix, String string) {
        int index1 = 0;
        int index2 = 0;
        int length1 = prefix.length();
        int length2 = string.length();
        char ch1 = ' ';
        char ch2 = ' ';
        while (index1 < length1 && index2 < length2) {
            while (index1 < length1 && Character.isWhitespace(ch1 = prefix.charAt(index1))) {
                index1++;
            }
            while (index2 < length2 && Character.isWhitespace(ch2 = string.charAt(index2))) {
                index2++;
            }
            if (index1 == length1 && index2 == length2) {
                return true;
            }
            if (ch1 != ch2) {
                return false;
            }
            index1++;
            index2++;
        }

        if (index1 < length1 && index2 >= length2) {
            return false;
        }

        return true;
    }
}

Related

1. startsWithIgnoreCase(String[] compoundName, String[] prefix)
2. startsWithIgnoreCaseAndNonAlphaNumeric(String searchIn, String searchFor)
3. startsWithIgnoreCaseAndWs(String searchIn, String searchFor)
4. startsWithIgnoreCaseAndWs(String searchIn, String searchFor, int beginPos)
5. startsWithIgnoreWhitespace(String str, String prefix)
6. startsWithIndex(String[] prefixes, String fullPath)
7. startsWithLenient(final String s, final String[] matches, final int[] minChars, final boolean acceptTrailing)
8. startsWithLetter(String str)
9. startsWithLetterOrUnderscore(String value)