/*
 * Copyright 2008 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.gwt.i18n.client.impl.plurals;

import com.google.gwt.i18n.client.PluralRule.PluralForm;

/**
 * Common plural rule for languages that have singular, two plural forms
 * (based on the units and tens digits) and a fractional form ("other").
 *
 * Polish is the only language that uses this plural rule.
 *
 * Note: Perhaps this class should have been named: DefaultRule_1_x234_n
 *
 * @see DefaultRule_0_1_2_n
 * @see DefaultRule_0_1_n
 * @see DefaultRule_01_n
 * @see DefaultRule_1_0n
 * @see DefaultRule_1_2_n
 * @see DefaultRule_1_234_n
 * @see DefaultRule_x1_x234_n
 */
public class DefaultRule_1_paucal_n {

  public static PluralForm[] pluralForms() {
    return new PluralForm[] {
        new PluralForm("other", "Default plural form"),
        new PluralForm("one", "Count is 1"),
        new PluralForm("few", "Count ends in 2-4 but not 12-14"),
        new PluralForm("many", "Count is not 1 and does not end in 2-4 except 12-14"),
    };
  }

  public static int select(int n) {
    /*
     * This method will only return a 1, 2, or 3 ("one", "few", or "many").
     * This method will never return 0 because "other" is the fractional form.
     */
    return n == 1 ? 1
        : n % 10 >= 2 && n % 10 <= 4 && (n % 100 < 10 || n % 100 > 20) ? 2
        : 3;
  }
}