text: /*
   * HNDiffOperation.h
   *
   * Copyright (c) 2008, 2013 Hironori Ichimiya <hiron@hironytic.com>
   *
   * Permission is hereby granted, free of charge, to any person obtaining
   * a copy of this software and associated documentation files (the
   * "Software"), to deal in the Software without restriction, including
   * without limitation the rights to use, copy, modify, merge, publish,
   * distribute, sublicense, and/or sell copies of the Software, and to
   * permit persons to whom the Software is furnished to do so, subject to
   * the following conditions:
   *
   * The above copyright notice and this permission notice shall be included
   * in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
   * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
   * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
   * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
   * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   */
  
  #import <Foundation/Foundation.h>
  
  typedef enum {
      HNDiffOperatorInserted,     // (the elements of sequence 1 are) inserted
      HNDiffOperatorModified,     // modified
      HNDiffOperatorDeleted,      // (the elements of sequence 0 are) deleted
      HNDiffOperatorNotChanged,   // no change
  } HNDiffOperator;
  
  /**
   * one diff-operaton
   */
  @interface HNDiffOperation : NSObject
  
  /** operator */
  @property(nonatomic, assign) HNDiffOperator op;
  
  /** index in sequence 0 */
  @property(nonatomic, assign) NSInteger from0;
  
  /** index in sequence 1 */
  @property(nonatomic, assign) NSInteger from1;
  
  /** count of elements in sequence 0 from from0 */
  @property(nonatomic, assign) NSInteger count0;
  
  /** count of elements in sequence 1 from from1 */
  @property(nonatomic, assign) NSInteger count1;
  
  @end
  