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vendor/phpspec/php-diff/lib/Diff/Renderer/Text/Unified.php 2.98 KB
ad2e91f7   Mihail   move multyparser ...
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  <?php
  /**
   * Unified diff generator for PHP DiffLib.
   *
   * PHP version 5
   *
   * Copyright (c) 2009 Chris Boulton <chris.boulton@interspire.com>
   * 
   * All rights reserved.
   * 
   * Redistribution and use in source and binary forms, with or without 
   * modification, are permitted provided that the following conditions are met:
   *
   *  - Redistributions of source code must retain the above copyright notice,
   *    this list of conditions and the following disclaimer.
   *  - Redistributions in binary form must reproduce the above copyright notice,
   *    this list of conditions and the following disclaimer in the documentation
   *    and/or other materials provided with the distribution.
   *  - Neither the name of the Chris Boulton nor the names of its contributors 
   *    may be used to endorse or promote products derived from this software 
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
   * POSSIBILITY OF SUCH DAMAGE.
   *
   * @package DiffLib
   * @author Chris Boulton <chris.boulton@interspire.com>
   * @copyright (c) 2009 Chris Boulton
   * @license New BSD License http://www.opensource.org/licenses/bsd-license.php
   * @version 1.1
   * @link http://github.com/chrisboulton/php-diff
   */
  
  require_once dirname(__FILE__).'/../Abstract.php';
  
  class Diff_Renderer_Text_Unified extends Diff_Renderer_Abstract
  {
  	/**
  	 * Render and return a unified diff.
  	 *
  	 * @return string The unified diff.
  	 */
  	public function render()
  	{
  		$diff = '';
  		$opCodes = $this->diff->getGroupedOpcodes();
  		foreach($opCodes as $group) {
  			$lastItem = count($group)-1;
  			$i1 = $group[0][1];
  			$i2 = $group[$lastItem][2];
  			$j1 = $group[0][3];
  			$j2 = $group[$lastItem][4];
  
  			if($i1 == 0 && $i2 == 0) {
  				$i1 = -1;
  				$i2 = -1;
  			}
  
  			$diff .= '@@ -'.($i1 + 1).','.($i2 - $i1).' +'.($j1 + 1).','.($j2 - $j1)." @@\n";
  			foreach($group as $code) {
  				list($tag, $i1, $i2, $j1, $j2) = $code;
  				if($tag == 'equal') {
  					$diff .= ' '.implode("\n ", $this->diff->GetA($i1, $i2))."\n";
  				}
  				else {
  					if($tag == 'replace' || $tag == 'delete') {
  						$diff .= '-'.implode("\n-", $this->diff->GetA($i1, $i2))."\n";
  					}
  
  					if($tag == 'replace' || $tag == 'insert') {
  						$diff .= '+'.implode("\n+", $this->diff->GetB($j1, $j2))."\n";
  					}
  				}
  			}
  		}
  		return $diff;
  	}
  }