/**
 * 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 org.waveprotocol.wave.client.editor.testtools;

import java.util.HashMap;
import java.util.Map;

/**
 * Maintains a simple abbreviations map
 *
 */
public class Abbreviations {

  /**
   * A map of abbreviations
   */
  private static HashMap<String, String> map =
      new HashMap<String, String>();

  /**
   * Adds an abbreviation
   *
   * @param abbreviation
   * @param expansion
   */
  public void add(String abbreviation, String expansion) {
    map.put(abbreviation, expansion);
  }

  /**
   * Clears abbreviations
   */
  public void clear() {
    map.clear();
  }

  /**
   * @param abbreviated
   * @return abbreviated expanded according to current abbreviations
   */
  public String expand(String abbreviated) {
    String expanded = abbreviated;
    for (Map.Entry<String, String> entry : map.entrySet()) {
      expanded = expanded.replaceAll(
          entry.getKey(), entry.getValue());
    }
    return expanded;
  }

}