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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one
    3    * or more contributor license agreements.  See the NOTICE file
    4    * distributed with this work for additional information
    5    * regarding copyright ownership.  The ASF licenses this file
    6    * to you under the Apache License, Version 2.0 (the
    7    * "License"); you may not use this file except in compliance
    8    * with the License.  You may obtain a copy of the License at
    9    *
    10   *   http://www.apache.org/licenses/LICENSE-2.0
    11   *
    12   * Unless required by applicable law or agreed to in writing,
    13   * software distributed under the License is distributed on an
    14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    15   * KIND, either express or implied.  See the License for the
    16   * specific language governing permissions and limitations
    17   * under the License.
    18   */
    19  package org.apache.mina.example.haiku;
    20
    21  /**
    22   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
    23   */
    24  public class PhraseUtilities {
    25      static int countSyllablesInPhrase(String phrase) {
    26          int syllables = 0;
    27
    28          for (String word : phrase.split("[^\\w-]+")) {
    29              if (word.length() > 0) {
    30                  syllables += countSyllablesInWord(word.toLowerCase());
    31              }
    32          }
    33
    34          return syllables;
    35      }
    36
    37      static int countSyllablesInWord(String word) {
    38          char[] chars = word.toCharArray();
    39          int syllables = 0;
    40          boolean lastWasVowel = false;
    41
    42          for (int i = 0; i < chars.length; i++) {
    43              char c = chars[i];
    44              if (isVowel(c)) {
    45                  if (!lastWasVowel
    46                          || (i > 0 && isE(chars, i - 1) && isO(chars, i))) {
    47                      ++syllables;
    48                      lastWasVowel = true;
    49                  }
    50              } else {
    51                  lastWasVowel = false;
    52              }
    53          }
    54
    55          if (word.endsWith("oned") || word.endsWith("ne")
    56                  || word.endsWith("ide") || word.endsWith("ve")
    57                  || word.endsWith("fe") || word.endsWith("nes")
    58                  || word.endsWith("mes")) {
    59              --syllables;
    60          }
    61
    62          return syllables;
    63      }
    64
    65      static boolean isE(char[] chars, int position) {
    66          return isCharacter(chars, position, 'e');
    67      }
    68
    69      static boolean isCharacter(char[] chars, int position, char c) {
    70          return chars[position] == c;
    71      }
    72
    73      static boolean isO(char[] chars, int position) {
    74          return isCharacter(chars, position, 'o');
    75      }
    76
    77      static boolean isVowel(char c) {
    78          return c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u'
    79                  || c == 'y';
    80      }
    81  }