Returns the next index to be used for camel case matching. - Java java.lang

Java examples for java.lang:String Camel Case

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Description

Returns the next index to be used for camel case matching.

Demo Code

/**//from   w ww. j  a v  a 2s.  c o m
 * Copyright (c) Red Hat, Inc., contributors and others 2013 - 2014. All rights reserved
 *
 * Licensed under the Eclipse Public License version 1.0, available at
 * http://www.eclipse.org/legal/epl-v10.html
 */
//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        String s = "java2s.com";
        int index = 2;
        System.out.println(getNextCamelIndex(s, index));
    }

    /**
     * Returns the next index to be used for camel case matching.
     * 
     * @param s the string
     * @param index the index
     * @return the next index, or -1 if not found
     */
    public static int getNextCamelIndex(String s, int index) {
        char c;
        while (index < s.length()
                && !(isSeparatorForCamelCase(c = s.charAt(index)))
                && Character.isLowerCase(c)) {
            index++;
        }
        while (index < s.length()
                && isSeparatorForCamelCase(c = s.charAt(index))) {
            index++;
        }
        if (index >= s.length()) {
            index = -1;
        }
        return index;
    }

    /**
     * Returns true if the given character is to be considered a separator
     * for camel case matching purposes.
     * 
     * @param c the character
     * @return true if the character is a separator
     */
    public static boolean isSeparatorForCamelCase(char c) {
        return !Character.isLetterOrDigit(c);
    }
}

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