com.google.flightmap.parsing.util.StringUtils.java Source code

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Here is the source code for com.google.flightmap.parsing.util.StringUtils.java

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/* 
 * Copyright (C) 2009 Google Inc.
 *
 * 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.
 */

package com.google.flightmap.parsing.util;

import org.apache.commons.lang.WordUtils;

public class StringUtils {

    /**
     *  Utility class: default and only constructor is private.
     */
    private StringUtils() {
    }

    /**
     * Returns mixed-case version of {@code text}.
     * <p>
     * The first letter of each word is capitalized, the rest are lower case.
     * Words are delimited by spaces and special characters (except single-quote).
     * "REID-HILLVIEW" becomes "Reid-Hillview".
     * 
     * @return mixed-case version of {@code text} with each word capitalized.
     */
    public static String capitalize(final String text) {
        final StringBuilder sb = new StringBuilder(WordUtils.capitalize(text.toLowerCase()));
        boolean makeNextLetterUpper = false;
        for (int i = 0; i < sb.length(); ++i) {
            final char cur = sb.charAt(i);
            if (Character.isWhitespace(cur)) {
                continue; // Skip whitespace
            } else if (Character.isLetterOrDigit(cur)) {
                if (makeNextLetterUpper) {
                    sb.setCharAt(i, Character.toUpperCase(cur));
                    makeNextLetterUpper = false;
                } else {
                    continue; // Skip character if no change is neded
                }
            } else { // Not whitespace, letter or digit:  we assume punctuation.
                makeNextLetterUpper = cur != '\''; // Ignore single quote (John'S, Susie'S, ...)
            }
        }
        return sb.toString();
    }

}