content: /*
   * Copyright 2008 ZXing authors
   *
   * 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.ailiwean.core.zxing.core.client.result;
  
  
  import com.ailiwean.core.zxing.core.BarcodeFormat;
  import com.ailiwean.core.zxing.core.Result;
  
  /**
   * Parses strings of digits that represent a ISBN.
   * 
   * @author jbreiden@google.com (Jeff Breidenbach)
   */
  public final class ISBNResultParser extends ResultParser {
  
    /**
     * See <a href="http://www.bisg.org/isbn-13/for.dummies.html">ISBN-13 For Dummies</a>
     */
    @Override
    public ISBNParsedResult parse(Result result) {
      BarcodeFormat format = result.getBarcodeFormat();
      if (format != BarcodeFormat.EAN_13) {
        return null;
      }
      String rawText = getMassagedText(result);
      int length = rawText.length();
      if (length != 13) {
        return null;
      }
      if (!rawText.startsWith("978") && !rawText.startsWith("979")) {
        return null;
      }
     
      return new ISBNParsedResult(rawText);
    }
  
  }
  