docs/include/classes/Language/LanguageParser.class.php

   1 <?php
   2 /************************************************************************/
   3 /* AContent                                                             */
   4 /************************************************************************/
   5 /* Copyright (c) 2010                                                   */
   6 /* Inclusive Design Institute                                           */
   7 /*                                                                      */
   8 /* This program is free software. You can redistribute it and/or        */
   9 /* modify it under the terms of the GNU General Public License          */
  10 /* as published by the Free Software Foundation.                        */
  11 /************************************************************************/
  12
  13 /**
  14 * LanguageParser
  15 * Class for parsing XML language info and returning a Language Object
  16 * @access       public
  17 * @author       Joel Kronenberg
  18 * @package      Language
  19 */
  20 class LanguageParser {
  21
  22         // all private
  23         var $parser; // the XML handler
  24         var $language_rows = array(); // the language data used for creating the Language Object
  25         var $character_data; // tmp variable for storing the data
  26         var $element_path; // array of element paths (basically a stack)
  27         var $row_num;
  28
  29         function LanguageParser() {
  30                 $this->parser = xml_parser_create('');
  31
  32                 xml_set_object($this->parser, $this);
  33                 xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, false); /* conform to W3C specs */
  34                 xml_set_element_handler($this->parser, 'startElement', 'endElement');
  35                 xml_set_character_data_handler($this->parser, 'characterData');
  36         }
  37
  38         // public
  39         function parse($xml_data) {
  40                 $this->element_path   = array();
  41                 $this->language_rows  = array();
  42                 $this->character_data = '';
  43                 $this->row_num        = 0;
  44                 xml_parse($this->parser, $xml_data, TRUE);
  45         }
  46
  47         // public
  48         function getLanguage($row_num) {
  49                 return new Language($this->language_rows[$row_num]);
  50         }
  51
  52         // public
  53         function getLanguageEditor($row_num) {
  54                 require_once(TR_INCLUDE_PATH.'classes/Language/LanguageEditor.class.php');
  55                 return new LanguageEditor($this->language_rows[$row_num]);
  56         }
  57
  58         // private
  59         function startElement($parser, $name, $attributes) {
  60                 array_push($this->element_path, $name);
  61
  62                 if ($this->element_path == array('language')) {
  63                         $this->language_rows[$this->row_num]['language_code'] = $attributes['code'];
  64                 }
  65    }
  66
  67         // private
  68         /* called when an element ends */
  69         /* removed the current element from the $path */
  70         function endElement($parser, $name) {
  71                 if ($this->element_path == array('language', 'transformable-version')) {
  72                         $this->language_rows[$this->row_num]['version'] = trim($this->character_data);
  73
  74                 } else if ($this->element_path === array('language', 'charset')) {
  75                         $this->language_rows[$this->row_num]['charset'] = trim($this->character_data);
  76
  77                 } else if ($this->element_path === array('language', 'reg-exp')) {
  78                         $this->language_rows[$this->row_num]['reg_exp'] = trim($this->character_data);
  79
  80                 } else if ($this->element_path === array('language', 'native-name')) {
  81                         $this->language_rows[$this->row_num]['native_name'] = trim($this->character_data);
  82
  83                 } else if ($this->element_path === array('language', 'english-name')) {
  84                         $this->language_rows[$this->row_num]['english_name'] = trim($this->character_data);
  85
  86                 } else if ($this->element_path === array('language', 'status')) {
  87                         $this->language_rows[$this->row_num]['status'] = trim($this->character_data);
  88
  89                 } else if ($this->element_path === array('language')) {
  90                         $this->row_num++;
  91                 }
  92
  93                 array_pop($this->element_path);
  94                 $this->character_data = '';
  95         }
  96
  97         // private
  98         function characterData($parser, $data){
  99                 $this->character_data .= $data;
 100         }
 101
 102         // public
 103         function getNumLanguages() {
 104                 return count($this->language_rows);
 105         }
 106 }
 107
 108
 109
 110 ?>