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<?php

/**

* CodeIgniter

*

* An open source application development framework for PHP 5.2.4 or newer

*

* NOTICE OF LICENSE

*

* Licensed under the Open Software License version 3.0

*

* This source file is subject to the Open Software License (OSL 3.0) that is

* bundled with this package in the files license.txt / license.rst. It is

* also available through the world wide web at this URL:

* http://opensource.org/licenses/OSL-3.0

* If you did not receive a copy of the license and are unable to obtain it

* through the world wide web, please send an email to

* licensing@ellislab.com so we can send you a copy immediately.

*

* @package CodeIgniter

* @author EllisLab Dev Team

* @copyright Copyright (c) 2008 - 2013, EllisLab, Inc. (http://ellislab.com/)

* @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)

* @link http://codeigniter.com

* @since Version 1.0

* @filesource

*/

defined('BASEPATH') OR exit('No direct script access allowed');

/**

* Parser Class

*

* @package CodeIgniter

* @subpackage Libraries

* @category Parser

* @author EllisLab Dev Team

* @link http://codeigniter.com/user_guide/libraries/parser.html

*/

class CI_Parser {

/**

* Left delimiter character for pseudo vars

*

* @var string

*/

public $l_delim = '{';

/**

* Right delimiter character for pseudo vars

*

* @var string

*/

public $r_delim = '}';

/**

* Reference to CodeIgniter instance

*

* @var object

*/

protected $CI;

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

/**

* Class constructor

*

* @return void

*/

public function __construct()

{

$this->CI =& get_instance();

}

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

/**

* Parse a template

*

* Parses pseudo-variables contained in the specified template view,

* replacing them with the data in the second param

*

* @param string

* @param array

* @param bool

* @return string

*/

public function parse($template, $data, $return = FALSE)

{

$template = $this->CI->load->view($template, $data, TRUE);

return $this->_parse($template, $data, $return);

}

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

/**

* Parse a String

*

* Parses pseudo-variables contained in the specified string,

* replacing them with the data in the second param

*

* @param string

* @param array

* @param bool

* @return string

*/

public function parse_string($template, $data, $return = FALSE)

{

return $this->_parse($template, $data, $return);

}

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

/**

* Parse a template

*

* Parses pseudo-variables contained in the specified template,

* replacing them with the data in the second param

*

* @param string

* @param array

* @param bool

* @return string

*/

protected function _parse($template, $data, $return = FALSE)

{

if ($template === '')

{

return FALSE;

}

foreach ($data as $key => $val)

{

$template = is_array($val)

? $this->_parse_pair($key, $val, $template)

: $template = $this->_parse_single($key, (string) $val, $template);

}

if ($return === FALSE)

{

$this->CI->output->append_output($template);

}

return $template;

}

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

/**

* Set the left/right variable delimiters

*

* @param string

* @param string

* @return void

*/

public function set_delimiters($l = '{', $r = '}')

{

$this->l_delim = $l;

$this->r_delim = $r;

}

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

/**

* Parse a single key/value

*

* @param string

* @param string

* @param string

* @return string

*/

protected function _parse_single($key, $val, $string)

{

return str_replace($this->l_delim.$key.$this->r_delim, (string) $val, $string);

}

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

/**

* Parse a tag pair

*

* Parses tag pairs: {some_tag} string... {/some_tag}

*

* @param string

* @param array

* @param string

* @return string

*/

protected function _parse_pair($variable, $data, $string)

{

if (FALSE === ($match = $this->_match_pair($string, $variable)))

{

return $string;

}

$str = '';

foreach ($data as $row)

{

$temp = $match[1];

foreach ($row as $key => $val)

{

$temp = is_array($val)

? $this->_parse_pair($key, $val, $temp)

: $this->_parse_single($key, $val, $temp);

}

$str .= $temp;

}

return str_replace($match[0], $str, $string);

}

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

/**

* Matches a variable pair

*

* @param string

* @param string

* @return mixed

*/

protected function _match_pair($string, $variable)

{

return preg_match('|'.preg_quote($this->l_delim).$variable.preg_quote($this->r_delim).'(.+?)'.preg_quote($this->l_delim).'/'.$variable.preg_quote($this->r_delim).'|s',

$string, $match)

? $match : FALSE;

}

}

/* End of file Parser.php */

/* Location: ./system/libraries/Parser.php */