system/core/Lang.php

   1 <?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
   2 /**
   3  * CodeIgniter
   4  *
   5  * An open source application development framework for PHP 5.1.6 or newer
   6  *
   7  * @package             CodeIgniter
   8  * @author              ExpressionEngine Dev Team
   9  * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
  10  * @license             http://codeigniter.com/user_guide/license.html
  11  * @link                http://codeigniter.com
  12  * @since               Version 1.0
  13  * @filesource
  14  */
  15
  16 // ------------------------------------------------------------------------
  17
  18 /**
  19  * Language Class
  20  *
  21  * @package             CodeIgniter
  22  * @subpackage  Libraries
  23  * @category    Language
  24  * @author              ExpressionEngine Dev Team
  25  * @link                http://codeigniter.com/user_guide/libraries/language.html
  26  */
  27 class CI_Lang {
  28
  29         var $language   = array();
  30         var $is_loaded  = array();
  31
  32         /**
  33          * Constructor
  34          *
  35          * @access      public
  36          */
  37         function __construct()
  38         {
  39                 log_message('debug', "Language Class Initialized");
  40         }
  41
  42         // --------------------------------------------------------------------
  43
  44         /**
  45          * Load a language file
  46          *
  47          * @access      public
  48          * @param       mixed   the name of the language file to be loaded. Can be an array
  49          * @param       string  the language (english, etc.)
  50          * @return      mixed
  51          */
  52         function load($langfile = '', $idiom = '', $return = FALSE, $add_suffix = TRUE, $alt_path = '')
  53         {
  54                 $langfile = str_replace(EXT, '', $langfile);
  55
  56                 if ($add_suffix == TRUE)
  57                 {
  58                         $langfile = str_replace('_lang.', '', $langfile).'_lang';
  59                 }
  60
  61                 $langfile .= EXT;
  62
  63                 if (in_array($langfile, $this->is_loaded, TRUE))
  64                 {
  65                         return;
  66                 }
  67
  68                 $config =& get_config();
  69
  70                 if ($idiom == '')
  71                 {
  72                         $deft_lang = ( ! isset($config['language'])) ? 'english' : $config['language'];
  73                         $idiom = ($deft_lang == '') ? 'english' : $deft_lang;
  74                 }
  75
  76                 // Determine where the language file is and load it
  77                 if ($alt_path != '' && file_exists($alt_path.'language/'.$idiom.'/'.$langfile))
  78                 {
  79                         include($alt_path.'language/'.$idiom.'/'.$langfile);
  80                 }
  81                 else
  82                 {
  83                         $found = FALSE;
  84
  85                         foreach (get_instance()->load->get_package_paths(TRUE) as $package_path)
  86                         {
  87                                 if (file_exists($package_path.'language/'.$idiom.'/'.$langfile))
  88                                 {
  89                                         include($package_path.'language/'.$idiom.'/'.$langfile);
  90                                         $found = TRUE;
  91                                         break;
  92                                 }
  93                         }
  94
  95                         if ($found !== TRUE)
  96                         {
  97                                 show_error('Unable to load the requested language file: language/'.$idiom.'/'.$langfile);
  98                         }
  99                 }
 100
 101
 102                 if ( ! isset($lang))
 103                 {
 104                         log_message('error', 'Language file contains no data: language/'.$idiom.'/'.$langfile);
 105                         return;
 106                 }
 107
 108                 if ($return == TRUE)
 109                 {
 110                         return $lang;
 111                 }
 112
 113                 $this->is_loaded[] = $langfile;
 114                 $this->language = array_merge($this->language, $lang);
 115                 unset($lang);
 116
 117                 log_message('debug', 'Language file loaded: language/'.$idiom.'/'.$langfile);
 118                 return TRUE;
 119         }
 120
 121         // --------------------------------------------------------------------
 122
 123         /**
 124          * Fetch a single line of text from the language array
 125          *
 126          * @access      public
 127          * @param       string  $line   the language line
 128          * @return      string
 129          */
 130         function line($line = '')
 131         {
 132                 $line = ($line == '' OR ! isset($this->language[$line])) ? FALSE : $this->language[$line];
 133
 134                 // Because killer robots like unicorns!
 135                 if ($line === FALSE)
 136                 {
 137                         log_message('error', 'Could not find the language line "'.$line.'"');
 138                 }
 139
 140                 return $line;
 141         }
 142
 143 }
 144 // END Language Class
 145
 146 /* End of file Lang.php */
 147 /* Location: ./system/core/Lang.php */