<?php /** * CodeIgniter * * An open source application development framework for PHP * * This content is released under the MIT License (MIT) * * Copyright (c) 2014 - 2015, British Columbia Institute of Technology * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * @package CodeIgniter * @author EllisLab Dev Team * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/) * @copyright Copyright (c) 2014 - 2015, British Columbia Institute of Technology (http://bcit.ca/) * @license http://opensource.org/licenses/MIT MIT License * @link http://codeigniter.com * @since Version 1.0.0 * @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() { $this->CI =& get_instance(); log_message('info', 'Parser Class Initialized'); } // -------------------------------------------------------------------- /** * Parse a template * * Parses pseudo-variables contained in the specified template view, * replacing them with the data in the second param * * @param string * @param array * @param bool * @return string */ public function parse($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; } $replace = array(); foreach ($data as $key => $val) { $replace = array_merge( $replace, is_array($val) ? $this->_parse_pair($key, $val, $template) : $this->_parse_single($key, (string) $val, $template) ); } unset($data); $template = strtr($template, $replace); if ($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, $string) { return array($this->l_delim.$key.$this->r_delim => (string) $val); } // -------------------------------------------------------------------- /** * Parse a tag pair * * Parses tag pairs: {some_tag} string... {/some_tag} * * @param string * @param array * @param string * @return string */ protected function _parse_pair($variable, $data, $string) { $replace = array(); preg_match_all( '#'.preg_quote($this->l_delim.$variable.$this->r_delim).'(.+?)'.preg_quote($this->l_delim.'/'.$variable.$this->r_delim).'#s', $string, $matches, PREG_SET_ORDER ); foreach ($matches as $match) { $str = ''; foreach ($data as $row) { $temp = array(); foreach ($row as $key => $val) { if (is_array($val)) { $pair = $this->_parse_pair($key, $val, $match[1]); if ( ! empty($pair)) { $temp = array_merge($temp, $pair); } continue; } $temp[$this->l_delim.$key.$this->r_delim] = $val; } $str .= strtr($match[1], $temp); } $replace[$match[0]] = $str; } return $replace; } }