Moved to PHP folder
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248
php/system/libraries/Parser.php
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248
php/system/libraries/Parser.php
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<?php
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP
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*
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* This content is released under the MIT License (MIT)
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*
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* Copyright (c) 2014 - 2018, British Columbia Institute of Technology
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @package CodeIgniter
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* @author EllisLab Dev Team
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* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
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* @copyright Copyright (c) 2014 - 2018, British Columbia Institute of Technology (http://bcit.ca/)
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* @license http://opensource.org/licenses/MIT MIT License
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* @link https://codeigniter.com
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* @since Version 1.0.0
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* @filesource
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*/
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defined('BASEPATH') OR exit('No direct script access allowed');
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/**
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* Parser Class
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*
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* @package CodeIgniter
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* @subpackage Libraries
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* @category Parser
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* @author EllisLab Dev Team
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* @link https://codeigniter.com/user_guide/libraries/parser.html
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*/
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class CI_Parser {
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/**
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* Left delimiter character for pseudo vars
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*
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* @var string
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*/
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public $l_delim = '{';
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/**
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* Right delimiter character for pseudo vars
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*
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* @var string
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*/
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public $r_delim = '}';
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/**
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* Reference to CodeIgniter instance
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*
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* @var object
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*/
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protected $CI;
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// --------------------------------------------------------------------
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/**
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* Class constructor
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*
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* @return void
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*/
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public function __construct()
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{
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$this->CI =& get_instance();
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log_message('info', 'Parser Class Initialized');
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}
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// --------------------------------------------------------------------
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/**
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* Parse a template
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*
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* Parses pseudo-variables contained in the specified template view,
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* replacing them with the data in the second param
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*
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* @param string
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* @param array
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* @param bool
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* @return string
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*/
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public function parse($template, $data, $return = FALSE)
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{
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$template = $this->CI->load->view($template, $data, TRUE);
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return $this->_parse($template, $data, $return);
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}
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// --------------------------------------------------------------------
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/**
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* Parse a String
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*
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* Parses pseudo-variables contained in the specified string,
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* replacing them with the data in the second param
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*
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* @param string
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* @param array
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* @param bool
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* @return string
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*/
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public function parse_string($template, $data, $return = FALSE)
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{
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return $this->_parse($template, $data, $return);
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}
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// --------------------------------------------------------------------
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/**
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* Parse a template
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*
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* Parses pseudo-variables contained in the specified template,
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* replacing them with the data in the second param
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*
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* @param string
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* @param array
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* @param bool
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* @return string
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*/
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protected function _parse($template, $data, $return = FALSE)
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{
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if ($template === '')
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{
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return FALSE;
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}
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$replace = array();
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foreach ($data as $key => $val)
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{
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$replace = array_merge(
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$replace,
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is_array($val)
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? $this->_parse_pair($key, $val, $template)
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: $this->_parse_single($key, (string) $val, $template)
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);
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}
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unset($data);
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$template = strtr($template, $replace);
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if ($return === FALSE)
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{
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$this->CI->output->append_output($template);
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}
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return $template;
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}
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// --------------------------------------------------------------------
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/**
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* Set the left/right variable delimiters
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*
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* @param string
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* @param string
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* @return void
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*/
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public function set_delimiters($l = '{', $r = '}')
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{
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$this->l_delim = $l;
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$this->r_delim = $r;
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}
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// --------------------------------------------------------------------
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/**
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* Parse a single key/value
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*
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* @param string
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* @param string
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* @param string
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* @return string
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*/
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protected function _parse_single($key, $val, $string)
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{
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return array($this->l_delim.$key.$this->r_delim => (string) $val);
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}
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// --------------------------------------------------------------------
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/**
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* Parse a tag pair
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*
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* Parses tag pairs: {some_tag} string... {/some_tag}
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*
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* @param string
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* @param array
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* @param string
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* @return string
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*/
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protected function _parse_pair($variable, $data, $string)
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{
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$replace = array();
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preg_match_all(
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'#'.preg_quote($this->l_delim.$variable.$this->r_delim).'(.+?)'.preg_quote($this->l_delim.'/'.$variable.$this->r_delim).'#s',
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$string,
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$matches,
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PREG_SET_ORDER
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);
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foreach ($matches as $match)
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{
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$str = '';
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foreach ($data as $row)
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{
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$temp = array();
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foreach ($row as $key => $val)
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{
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if (is_array($val))
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{
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$pair = $this->_parse_pair($key, $val, $match[1]);
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if ( ! empty($pair))
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{
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$temp = array_merge($temp, $pair);
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}
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continue;
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}
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$temp[$this->l_delim.$key.$this->r_delim] = $val;
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}
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$str .= strtr($match[1], $temp);
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}
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$replace[$match[0]] = $str;
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}
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return $replace;
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}
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}
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