package org.appfuse.tool;
   
   import java.util.regex.Pattern;
   
   /**
    * This class contains methods than can be used in
    * Freemarker templates for String manipulation.
    */
   public class StringUtils {
      private static final Pattern ES = Pattern.compile("^.*(sh|ss|ch|o|i)$");
      private static final Pattern ICES = Pattern.compile("^.*(ex|ix)$");
      private static final Pattern NOT_VOWEL_Y = Pattern.compile("^.*[^aeiou]y$");
  
      public String getPluralForWord(final String word) {
          String plural = null;
  
          if (StringUtils.isNotBlank(word)) {
              plural = word + "s";
  
              if (ES.matcher(word).matches()) {
                  plural = word + "es";
              } else if (NOT_VOWEL_Y.matcher(word).matches()) {
                  String stripY = word.substring(0, word.length() - 1);
                  plural = stripY + "ies";
              } else if (ICES.matcher(word).matches()) {
                  String strip_X = word.substring(0, word.length() - 2);
                  plural = strip_X + "ices";
              }
          }
  
          return plural;
      }
  
      private static boolean isNotBlank(String word) {
          return word != null && word.trim().length() > 0;
      }
  }