First commit!

application/config/autoload.php

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+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/*
+| -------------------------------------------------------------------
+| AUTO-LOADER
+| -------------------------------------------------------------------
+| This file specifies which systems should be loaded by default.
+|
+| In order to keep the framework as light-weight as possible only the
+| absolute minimal resources are loaded by default. For example,
+| the database is not connected to automatically since no assumption
+| is made regarding whether you intend to use it.  This file lets
+| you globally define which systems you would like loaded with every
+| request.
+|
+| -------------------------------------------------------------------
+| Instructions
+| -------------------------------------------------------------------
+|
+| These are the things you can load automatically:
+|
+| 1. Packages
+| 2. Libraries
+| 3. Helper files
+| 4. Custom config files
+| 5. Language files
+| 6. Models
+|
+*/
+
+/*
+| -------------------------------------------------------------------
+|  Auto-load Packges
+| -------------------------------------------------------------------
+| Prototype:
+|
+|  $autoload['packages'] = array(APPPATH.'third_party', '/usr/local/shared');
+|
+*/
+
+$autoload['packages'] = array();
+
+
+/*
+| -------------------------------------------------------------------
+|  Auto-load Libraries
+| -------------------------------------------------------------------
+| These are the classes located in the system/libraries folder
+| or in your application/libraries folder.
+|
+| Prototype:
+|
+|	$autoload['libraries'] = array('database', 'session', 'xmlrpc');
+*/
+
+$autoload['libraries'] = array();
+
+
+/*
+| -------------------------------------------------------------------
+|  Auto-load Helper Files
+| -------------------------------------------------------------------
+| Prototype:
+|
+|	$autoload['helper'] = array('url', 'file');
+*/
+
+$autoload['helper'] = array('url', 'language', 'mci');
+
+
+/*
+| -------------------------------------------------------------------
+|  Auto-load Config files
+| -------------------------------------------------------------------
+| Prototype:
+|
+|	$autoload['config'] = array('config1', 'config2');
+|
+| NOTE: This item is intended for use ONLY if you have created custom
+| config files.  Otherwise, leave it blank.
+|
+*/
+
+$autoload['config'] = array();
+
+
+/*
+| -------------------------------------------------------------------
+|  Auto-load Language files
+| -------------------------------------------------------------------
+| Prototype:
+|
+|	$autoload['language'] = array('lang1', 'lang2');
+|
+| NOTE: Do not include the "_lang" part of your file.  For example
+| "codeigniter_lang.php" would be referenced as array('codeigniter');
+|
+*/
+
+$autoload['language'] = array('mci');
+
+
+/*
+| -------------------------------------------------------------------
+|  Auto-load Models
+| -------------------------------------------------------------------
+| Prototype:
+|
+|	$autoload['model'] = array('model1', 'model2');
+|
+*/
+
+$autoload['model'] = array();
+
+
+/* End of file autoload.php */
+/* Location: ./application/config/autoload.php */

application/config/mci_languages.php

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+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * Config for Multilingual CI
+ *
+ * Default language is set in the config.php - $config['language']	= 'english';
+ *
+ * by Tanel Tammik - keevitaja@gmail.com - 2012
+ *
+ * version 1.0
+ *
+ */
+
+// Supported languages
+// By adding/romoving languages changes must be done in routes.php as well
+$config['mci_languages']['en'] = 'english';
+$config['mci_languages']['et'] = 'estonian';
+$config['mci_languages']['ru'] = 'russian';
+
+// Hides language segment for default language
+$config['mci_hide_default'] = TRUE;
+
+// html wrappers for language bar
+$config['mci_wrapper_language'] = "<span>%s</span>";
+$config['mci_wrapper_section'] = "<nav>%s</nav>";
+
+// display names for the language bar
+$config['mci_display']['en']['name'] = "ENG";
+$config['mci_display']['en']['title'] = "In English";
+$config['mci_display']['et']['name'] = "EST";
+$config['mci_display']['et']['title'] = "Eesti Keeles";
+$config['mci_display']['ru']['name'] = "RUS";
+$config['mci_display']['ru']['title'] = "По-Русски";
+
+/* End of file mci_languages.php */
+/* Location: ./application/config/mci_languages.php */

application/config/routes.php

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+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/*
+| -------------------------------------------------------------------------
+| URI ROUTING
+| -------------------------------------------------------------------------
+| This file lets you re-map URI requests to specific controller functions.
+|
+| Typically there is a one-to-one relationship between a URL string
+| and its corresponding controller class/method. The segments in a
+| URL normally follow this pattern:
+|
+|	example.com/class/method/id/
+|
+| In some instances, however, you may want to remap this relationship
+| so that a different class/function is called than the one
+| corresponding to the URL.
+|
+| Please see the user guide for complete details:
+|
+|	http://codeigniter.com/user_guide/general/routing.html
+|
+| -------------------------------------------------------------------------
+| RESERVED ROUTES
+| -------------------------------------------------------------------------
+|
+| There area two reserved routes:
+|
+|	$route['default_controller'] = 'welcome';
+|
+| This route indicates which controller class should be loaded if the
+| URI contains no data. In the above example, the "welcome" class
+| would be loaded.
+|
+|	$route['404_override'] = 'errors/page_missing';
+|
+| This route will tell the Router what URI segments to use if those provided
+| in the URL cannot be matched to a valid route.
+|
+*/
+
+$route['default_controller'] = "example";
+$route['404_override'] = '';
+
+// All re-mappings must begin with '^(en|et|ru)' !!!
+
+$route['^(en|et|ru)/(.+)$'] = "$2";
+$route['^(en|et|ru)$'] = $route['default_controller'];
+
+/* End of file routes.php */
+/* Location: ./application/config/routes.php */

application/controllers/example.php

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+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * Example controller for Multilingual CI
+ *
+ * requires language helper
+ *
+ * by Tanel Tammik - keevitaja@gmail.com - 2012
+ *
+ * version 1.0
+ *
+ */
+
+class Example extends CI_Controller {
+	function index() {
+		$data['i18n'] = $this->lang->mci_current();
+		$data['content'] = 'mci_example_1';
+		$data['uri'] = 'example/test';
+
+		$this->load->view('example', $data);
+	}
+
+  function test() {
+		$data['i18n'] = $this->lang->mci_current();
+		$data['content'] = 'mci_example_2';
+		$data['uri'] = 'example';
+
+		$this->load->view('example', $data);
+  }
+}
+
+/* End of file example.php */
+/* Location: ./application/controllers/example.php */

application/core/MY_Lang.php

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+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * CORE Lang.php extension for Multilingual CI
+ *
+ * requires url helper
+ *
+ * by Tanel Tammik - keevitaja@gmail.com - 2012
+ *
+ * version 1.0
+ *
+ */
+
+class MY_Lang extends CI_Lang {
+  private $mci_languages;
+  private $mci_hide_default;
+  private $mci_segment;
+  private $mci_default_language;
+
+  function __construct() {
+    global $URI, $CFG;
+
+    parent::__construct();
+
+    $CFG->load('mci_languages');
+
+    $this->mci_languages = $CFG->item('mci_languages');
+    $this->mci_hide_default = $CFG->item('mci_hide_default');
+    $this->mci_segment = $URI->segment(1, 0);
+    $this->mci_default_language = array_search($CFG->item('language'), $this->mci_languages);
+
+    if(array_key_exists($this->mci_segment, $this->mci_languages)) {
+      $CFG->set_item('language', $this->mci_languages[$this->mci_segment]);
+    }
+  }
+
+  // returns current language segment
+  function mci_current() {    
+    return ((array_key_exists($this->mci_segment, $this->mci_languages)) ? $this->mci_segment : $this->mci_default_language);
+  }
+
+  // checks, if currently used language is default. returns bool
+  function is_default() {
+    return (($this->mci_current() == $this->mci_default_language) ? TRUE : FALSE);
+  }
+
+  // returns current uri without language segment
+  function mci_clean_uri() {
+    $ci =& get_instance();
+
+    $segments = $ci->uri->segment_array();
+
+    if(empty($segments)) {
+      return;
+    }
+
+    if(array_key_exists($segments[1], $this->mci_languages)) {
+      array_shift($segments);
+    }
+
+    return implode('/', $segments);
+  }
+
+  // returns uri string with language segment
+  function mci_make_uri($language_segment, $uri = FALSE) {
+    $uri = ($uri === FALSE) ? $this->mci_clean_uri() : trim($uri, '/');
+
+    if(!array_key_exists($language_segment, $this->mci_languages)) {
+      return $uri;
+    }
+
+    if($language_segment == $this->mci_default_language AND $this->mci_hide_default === TRUE) {
+      return $uri;
+    }
+
+    $uri = $language_segment.'/'.$uri;
+
+    return $uri;
+  }
+
+  // returns html language bar
+  function mci_language_bar() {
+    $ci =& get_instance();
+
+    $display = $ci->config->item('mci_display');
+
+    $html = '';
+
+    foreach($this->mci_languages as $segment => $name) {
+      $uri = $this->mci_make_uri($segment);
+
+      $row = ($segment != $this->mci_current()) ? anchor($uri, $display[$segment]['name'], 'title="'.$display[$segment]['title'].'"') : $display[$segment]['name'];
+
+      $html .= sprintf($ci->config->item('mci_wrapper_language'), $row);
+    }
+
+    return sprintf($ci->config->item('mci_wrapper_section'), $html);
+  }
+}
+
+/* End of file MY_Lang.php */
+/* Location: ./application/core/MY_lang.php */

application/helpers/mci_helper.php

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+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * Helper functions for Multilingual CI
+ *
+ * requires url helper
+ *
+ * by Tanel Tammik - keevitaja@gmail.com - 2012
+ *
+ * version 1.0
+ *
+ */
+
+// Adds language segment to anchor uri
+// Use instead of anchor in multilingual projects
+function lanchor($uri = '', $title = '', $attributes = '') {
+  $ci =& get_instance();
+
+  $uri = $ci->lang->mci_make_uri($ci->lang->mci_current(), $uri);
+
+  return anchor($uri, $title, $attributes);
+}
+
+// Returns languge bar html
+// Html can be configured in mci_languages.php config file
+function langbar() {
+  $ci =& get_instance();
+
+  return $ci->lang->mci_language_bar();
+}
+
+/* End of file mci_helper.php */
+/* Location: ./application/helpers/mci_helper.php */