<?php defined('SYSPATH') or die('No direct script access.');

/**

* @package Kohana/Codebench

* @category Tests

* @author Geert De Deckere <geert@idoe.be>

*/

class Bench_MDDoBaseURL extends Codebench {

public $description =

'Optimization for the <code>doBaseURL()</code> method of <code>Kohana_Kodoc_Markdown</code>

for the Kohana Userguide.';

public $loops = 10000;

public $subjects = array

(

// Valid matches

'[filesystem](about.filesystem)',

'[filesystem](about.filesystem "Optional title")',

'[same page link](#id)',

'[object oriented](http://wikipedia.org/wiki/Object-Oriented_Programming)',

// Invalid matches

'',

'[filesystem](about.filesystem',

);

public function bench_original($subject)

{

// The original regex contained a bug, which is fixed here for benchmarking purposes.

// At the very start of the regex, (?!!) has been replace by (?<!!)

return preg_replace_callback('~(?<!!)\[(.+?)\]\(([^#]\S*(?:\s*".+?")?)\)~', array($this, '_add_base_url_original'), $subject);

}

public function _add_base_url_original($matches)

{

if ($matches[2] AND strpos($matches[2], '://') === FALSE)

{

// Add the base url to the link URL

$matches[2] = 'http://BASE/'.$matches[2];

}

// Recreate the link

return "[{$matches[1]}]({$matches[2]})";

}

public function bench_optimized_callback($subject)

{

return preg_replace_callback('~(?<!!)\[(.+?)\]\((?!\w++://)([^#]\S*(?:\s*+".+?")?)\)~', array($this, '_add_base_url_optimized'), $subject);

}

public function _add_base_url_optimized($matches)

{

// Add the base url to the link URL

$matches[2] = 'http://BASE/'.$matches[2];

// Recreate the link

return "[{$matches[1]}]({$matches[2]})";

}

public function bench_callback_gone($subject)

{

// All the optimized callback was doing now, is prepend some text to the URL.

// We don't need a callback for that, and that should be clearly faster.

return preg_replace('~(?<!!)(\[.+?\]\()(?!\w++://)([^#]\S*(?:\s*+".+?")?\))~', '$1http://BASE/$2', $subject);

}

}