mods/_core/themes/classes/ThemeParser.class.php

   1 <?php\r
   2 /************************************************************************/\r
   3 /* ATutor                                                                                                                               */\r
   4 /************************************************************************/\r
   5 /* Copyright (c) 2002-2010                                              */\r
   6 /* Inclusive Design Institute                                           */\r
   7 /* http://atutor.ca                                                                                                             */\r
   8 /*                                                                                                                                              */\r
   9 /* This program is free software. You can redistribute it and/or        */\r
  10 /* modify it under the terms of the GNU General Public License          */\r
  11 /* as published by the Free Software Foundation.                        */\r
  12 /************************************************************************/\r
  13 \r
  14 /**\r
  15 * ThemeParser\r
  16 * Class for parsing XML language info and returning a Theme Object\r
  17 * @access       public\r
  18 * @author       Shozub Qureshi\r
  19 * @package      Themes\r
  20 */\r
  21 class ThemeParser {\r
  22 \r
  23         // all private\r
  24         var $parser; // the XML handler\r
  25         var $theme_rows = array(); // the language data used for creating the Language Object\r
  26         var $character_data; // tmp variable for storing the data\r
  27         var $element_path; // array of element paths (basically a stack)\r
  28         var $row_num;\r
  29 \r
  30         function ThemeParser() {\r
  31                 $this->parser = xml_parser_create(); \r
  32 \r
  33                 xml_set_object($this->parser, $this);\r
  34                 xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, false); /* conform to W3C specs */\r
  35                 xml_set_element_handler($this->parser, 'startElement', 'endElement');\r
  36                 xml_set_character_data_handler($this->parser, 'characterData');\r
  37         }\r
  38 \r
  39         // public\r
  40         function parse($xml_data) {\r
  41                 $this->element_path   = array();\r
  42                 $this->theme_rows  = array();\r
  43                 $this->character_data = '';\r
  44                 xml_parse($this->parser, $xml_data, TRUE);\r
  45         }\r
  46 \r
  47         // private\r
  48         function startElement($parser, $name, $attributes) {\r
  49                 array_push($this->element_path, $name);\r
  50    }\r
  51 \r
  52         // private\r
  53         /* called when an element ends */\r
  54         /* removed the current element from the $path */\r
  55         function endElement($parser, $name) {\r
  56                 if ($this->element_path == array('theme', 'dir_name')) {\r
  57                         $this->theme_rows['dir_name'] = trim($this->character_data);\r
  58 \r
  59                 } else if ($this->element_path == array('theme', 'title')) {\r
  60                         $this->theme_rows['title'] = trim($this->character_data);\r
  61 \r
  62                 } else if ($this->element_path == array('theme', 'version')) {\r
  63                         $this->theme_rows['version'] = trim($this->character_data);\r
  64 \r
  65                 } else if ($this->element_path == array('theme', 'type')) {\r
  66                         $this->theme_rows['type'] = trim($this->character_data);\r
  67 \r
  68                 } else if ($this->element_path == array('theme', 'last_updated')) {\r
  69                         $this->theme_rows['last_updated'] = trim($this->character_data);\r
  70 \r
  71                 } else if ($this->element_path == array('theme', 'extra_info')) {\r
  72                         $this->theme_rows['extra_info'] = trim($this->character_data);\r
  73 \r
  74                 }\r
  75 \r
  76                 array_pop($this->element_path);\r
  77                 $this->character_data = '';\r
  78         }\r
  79 \r
  80         // private\r
  81         function characterData($parser, $data){\r
  82                 $this->character_data .= $data;\r
  83         }\r
  84 \r
  85 }\r
  86 \r
  87 ?>