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* Abstract class for diff renderers in PHP DiffLib.
* Copyright (c) 2009 Chris Boulton <chris.boulton@interspire.com>
* 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.
* @author Chris Boulton <chris.boulton@interspire.com>
* @copyright (c) 2009 Chris Boulton
* @license New BSD License http://www.opensource.org/licenses/bsd-license.php
* @link http://github.com/chrisboulton/php-diff
abstract class Diff_Renderer_Abstract
* @var object Instance of the diff class that this renderer is generating the rendered diff for.
* @var array Array of the default options that apply to this renderer.
protected $defaultOptions = array();
* @var array Array containing the user applied and merged default options for the renderer.
protected $options = array();
* The constructor. Instantiates the rendering engine and if options are passed,
* sets the options for the renderer.
* @param array $options Optionally, an array of the options for the renderer.
public function __construct(array $options = array())
$this->setOptions($options);
* Set the options of the renderer to those supplied in the passed in array.
* Options are merged with the default to ensure that there aren't any missing
* @param array $options Array of options to set.
public function setOptions(array $options)
$this->options = array_merge($this->defaultOptions, $options);