/**

  * Distribution License:

  * JSword is free software; you can redistribute it and/or modify it under

  * the terms of the GNU Lesser General Public License, version 2.1 or later

  * as published by the Free Software Foundation. This program is distributed

  * in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even

  * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

  * See the GNU Lesser General Public License for more details.

  *

  * The License is available on the internet at:

  *      http://www.gnu.org/copyleft/lgpl.html

  * or by writing to:

  *      Free Software Foundation, Inc.

  *      59 Temple Place - Suite 330

  *      Boston, MA 02111-1307, USA

  *

  * © CrossWire Bible Society, 2007 - 2016

  *

  */

 package org.crosswire.jsword.book.study;

 import java.util.HashMap;

 import java.util.Locale;

 import java.util.Map;

 import java.util.Set;

 import java.util.TreeSet;

 /**

  * A StrongsMapSet is keyed by a Strong's Number of the form Gd or Hd, where G

  * and H stand for Greek and Hebrew respectively and d is the actual number,

  * zero padded to 4 digits. The value for a MapEntry is a Set of Strings, which

  * are the various ways a Strong's Number is marked up.

  * 

  * @see gnu.lgpl.License The GNU Lesser General Public License for details.

  * @author DM Smith

  */

 public class StrongsMapSet {

     /**

      * Build an empty Strong's Map Set.

      */

     public StrongsMapSet() {

         map = new HashMap<String, Set<String>>();

     }

     /**

      * Add a String representing the content of an instance of a Strong's Number

      * in a text.

      * 

      * @param strongsNumber

      *            the Strong's Number

      * @param representation

      *            a way the Strong's number is represented.

      */

     public void add(String strongsNumber, String representation) {

         Set<String> reps = map.get(strongsNumber);

         if (reps == null) {

             reps = new TreeSet<String>();

             map.put(strongsNumber, reps);

         }

         reps.add(representation.toLowerCase(Locale.ENGLISH));

     }

     /**

      * Get the set of all representations for a Strong's Number.

      * 

      * @param strongsNumber

      * @return the whole set

      */

     public Set<String> get(String strongsNumber) {

         return map.get(strongsNumber);

     }

     private Map<String, Set<String>> map;

 }