test_plugin for conditionals

pi.test_plugin.php

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

$plugin_info = array(
	'pi_name'        => 'Test_plugin',
	'pi_version'     => '1.0',
	'pi_author'      => 'GDmac',
	'pi_author_url'  => '',
	'pi_description' => 'Testing stuff',
	'pi_usage'       => Test_plugin::usage()
	);


Class Test_plugin {

	var $return_data;

	// ------------------------------------------

	function __construct()
	{
		$this->EE =& get_instance();
	}

	// ------------------------------------------

	function test()
	{
		var_dump('test', $this->EE->TMPL->tagdata,  $this->EE->TMPL->tag_data);

		return $this->EE->TMPL->tagdata;
	}

	// ------------------------------------------

	function test2()
	{
		// $x = $this->EE->functions->assign_conditional_variables($this->EE->TMPL->tagdata);
		// var_dump('test2', $x, $this->EE->TMPL->tag_data);

		// fetch tagdata

		$this->tagdata = $this->EE->TMPL->tagdata;


		// main tag-pair loop, replacing tag-pairs with data

		$var_pairs = $this->EE->TMPL->var_pair;

		foreach ($var_pairs as $key => $params)
		{
			//var_dump($key, $params);
			
			// --------------------
			// match tag one
			if (strncmp($key, 'switch_one', 10) == 0)
			{
				// fetch switch_one tag contents
				$temp = preg_match("/{".preg_quote($key)."}(.*?){\/switch_one}/s", $this->tagdata, $matches);

				// fetch any conditionals
				$conditionals = $this->EE->functions->assign_conditional_variables($matches[1]);

				var_dump($conditionals, $matches);

				// str_replace whole match (tag-pair)
				$this->tagdata = str_replace($matches[0], '<p>String replacing one</p>', $this->tagdata);
			}

			// --------------------
			// match tag two
			if (strncmp($key, 'switch_two', 10) == 0)
			{
				// fetch tag contents and remove from tagdata
				$temp = preg_match("/{".preg_quote($key)."}(.*?){\/switch_two}/s", $this->tagdata, $matches);
				$this->tagdata = str_replace($matches[0], '<p>String Replacing two</p>', $this->tagdata);
			}

		}

		return $this->tagdata;
	}





	// ------------------------------------------

	function usage()
	{
		ob_start(); 

		?>
		#Nothing to see here
		Jut testing
		<?php

		$buffer = ob_get_contents();
		ob_end_clean(); 
		return $buffer;
	}
}

test-Template

<p>Test</p>

{exp:test_plugin:test}
 aa
  {if no_results}
    bb
  {/if}

  {exp:test_plugin:test2}
    cc

    {switch_one hello="world"}
      xx
      {if t2_no_results}
        dd
      {/if}
    {/switch_one}

    {switch_two foo="bar"}
      yy
      {if t2_no_results}
        ee
      {/if}
    {/switch_two}

  {/exp:test_plugin:test2}

{/exp:test_plugin:test}