includes/lang.php
author Dan
Tue, 22 Jan 2008 01:08:15 -0500
changeset 370 b251818286b1
parent 355 d15e4411ef65
child 371 dc6026376919
permissions -rw-r--r--
Localized registration errors and activation/COPPA e-mails
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<?php
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/*
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 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
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 * Version 1.1.1
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 * Copyright (C) 2006-2007 Dan Fuhry
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 *
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 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
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 */
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/**
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 * Language class - processes, stores, and retrieves language strings.
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 * @package Enano
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 * @subpackage Localization
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 * @copyright 2007 Dan Fuhry
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 * @license GNU General Public License
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 */
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class Language
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{
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  /**
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   * The numerical ID of the loaded language.
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   * @var int
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   */
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  var $lang_id;
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  /**
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   * The ISO-639-3 code for the loaded language. This should be grabbed directly from the database.
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   * @var string
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   */
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  var $lang_code;
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  /**
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   * Used to track when a language was last changed, to allow browsers to cache language data
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   * @var int
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   */
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  var $lang_timestamp;
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  /**
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   * Will be an object that holds an instance of the class configured with the site's default language. Only instanciated when needed.
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   * @var object
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   */
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  var $default;
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  /**
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   * The list of loaded strings.
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   * @var array
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   * @access private
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   */
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  var $strings = array();
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  /**
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   * Constructor.
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   * @param int|string Language ID or code to load.
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   */
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  function __construct($lang)
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  {
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    global $db, $session, $paths, $template, $plugins; // Common objects
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    if ( defined('IN_ENANO_INSTALL') )
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    {
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      // special case for the Enano installer: it will load its own strings from a JSON file and just use this API for fetching and templatizing them.
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      $this->lang_id   = 1;
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      $this->lang_code = $lang;
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      return true;
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    }
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    if ( is_string($lang) )
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    {
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      $sql_col = 'lang_code="' . $db->escape($lang) . '"';
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    }
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    else if ( is_int($lang) )
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    {
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      $sql_col = 'lang_id=' . $lang . '';
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    }
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    else
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    {
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      $db->_die('lang.php - attempting to pass invalid value to constructor');
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    }
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    $lang_default = ( $x = getConfig('default_language') ) ? intval($x) : '\'def\'';
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    $q = $db->sql_query("SELECT lang_id, lang_code, last_changed, ( lang_id = $lang_default ) AS is_default FROM " . table_prefix . "language WHERE $sql_col OR lang_id = $lang_default ORDER BY is_default DESC LIMIT 1;");
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    if ( !$q )
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      $db->_die('lang.php - main select query');
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    if ( $db->numrows() < 1 )
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      $db->_die('lang.php - There are no languages installed');
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    $row = $db->fetchrow();
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    $this->lang_id   = intval( $row['lang_id'] );
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    $this->lang_code = $row['lang_code'];
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    $this->lang_timestamp = $row['last_changed'];
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  }
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  /**
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   * Fetches language strings from the database, or a cache file if it's available.
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   * @param bool If true (default), allows the cache to be used.
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   */
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  function fetch($allow_cache = true)
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  {
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    global $db, $session, $paths, $template, $plugins; // Common objects
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    $lang_file = ENANO_ROOT . "/cache/lang_{$this->lang_id}.php";
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    // Attempt to load the strings from a cache file
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    if ( file_exists($lang_file) && $allow_cache )
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    {
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      // Yay! found it
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      $this->load_cache_file($lang_file);
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    }
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    else
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    {
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      // No cache file - select and retrieve from the database
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      $q = $db->sql_unbuffered_query("SELECT string_category, string_name, string_content FROM " . table_prefix . "language_strings WHERE lang_id = {$this->lang_id};");
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      if ( !$q )
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        $db->_die('lang.php - selecting language string data');
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      if ( $row = $db->fetchrow() )
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      {
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        $strings = array();
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        do
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        {
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          $cat =& $row['string_category'];
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          if ( !is_array($strings[$cat]) )
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          {
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            $strings[$cat] = array();
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          }
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          $strings[$cat][ $row['string_name'] ] = $row['string_content'];
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        }
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        while ( $row = $db->fetchrow() );
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        // all done fetching
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        $this->merge($strings);
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      }
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      else
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      {
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        if ( !defined('ENANO_ALLOW_LOAD_NOLANG') )
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          $db->_die('lang.php - No strings for language ' . $this->lang_code);
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      }
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    }
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  }
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  /**
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   * Loads a file from the disk cache (treated as PHP) and merges it into RAM.
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   * @param string File to load
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   */
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  function load_cache_file($file)
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  {
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    global $db, $session, $paths, $template, $plugins; // Common objects
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    // We're using eval() here because it makes handling scope easier.
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    if ( !file_exists($file) )
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      $db->_die('lang.php - requested cache file doesn\'t exist');
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    $contents = file_get_contents($file);
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    $contents = preg_replace('/([\s]*)<\?php/', '', $contents);
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    @eval($contents);
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    if ( !isset($lang_cache) || ( isset($lang_cache) && !is_array($lang_cache) ) )
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      $db->_die('lang.php - the cache file is invalid (didn\'t set $lang_cache as an array)');
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    $this->merge($lang_cache);
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  }
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  /**
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   * Loads a JSON language file and parses the strings into RAM. Will use the cache if possible, but stays far away from the database,
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   * which we assume doesn't exist yet.
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   */
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  function load_file($file)
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  {
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    global $db, $session, $paths, $template, $plugins; // Common objects
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    if ( !file_exists($file) )
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    {
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      if ( defined('IN_ENANO_INSTALL') )
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      {
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        die('lang.php - requested JSON file (' . htmlspecialchars($file) . ') doesn\'t exist');
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      }
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      else
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      {
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        $db->_die('lang.php - requested JSON file doesn\'t exist');
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      }
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    }
243
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    $contents = trim(@file_get_contents($file));
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    if ( empty($contents) )
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      $db->_die('lang.php - empty language file...');
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    // Trim off all text before and after the starting and ending braces
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    $contents = preg_replace('/^([^{]+)\{/', '{', $contents);
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    $contents = preg_replace('/\}([^}]+)$/', '}', $contents);
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    $contents = trim($contents);
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    if ( empty($contents) )
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      $db->_die('lang.php - no meat to the language file...');
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    $checksum = md5($contents);
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    if ( file_exists("./cache/lang_json_{$checksum}.php") )
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    {
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      $this->load_cache_file("./cache/lang_json_{$checksum}.php");
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    }
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    else
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    {
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      // Correct syntax to be nice to the json parser
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      // eliminate comments
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      $contents = preg_replace(array(
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              // eliminate single line comments in '// ...' form
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              '#^\s*//(.+)$#m',
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              // eliminate multi-line comments in '/* ... */' form, at start of string
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              '#^\s*/\*(.+)\*/#Us',
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              // eliminate multi-line comments in '/* ... */' form, at end of string
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              '#/\*(.+)\*/\s*$#Us'
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   228
            ), '', $contents);
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      $contents = preg_replace('/([,\{\[])([\s]*?)([a-z0-9_]+)([\s]*?):/', '\\1\\2"\\3" :', $contents);
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      try
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      {
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        $langdata = enano_json_decode($contents);
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   235
      }
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      catch(Zend_Json_Exception $e)
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      {
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        $db->_die('lang.php - Exception caught by JSON parser</p><pre>' . htmlspecialchars(print_r($e, true)) . '</pre><p>');
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   239
        exit;
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   240
      }
243
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   241
    
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   242
      if ( !is_array($langdata) )
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   243
        $db->_die('lang.php - invalid language file');
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   244
      
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      if ( !isset($langdata['categories']) || !isset($langdata['strings']) )
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        $db->_die('lang.php - language file does not contain the proper items');
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   247
      
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   248
      $this->merge($langdata['strings']);
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   249
      
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      $lang_file = "./cache/lang_json_{$checksum}.php";
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   251
      
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   252
      $handle = @fopen($lang_file, 'w');
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   253
      if ( !$handle )
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        // Couldn't open the file. Silently fail and let the strings come from RAM.
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   255
        return false;
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   256
        
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   257
      // The file's open, that means we should be good.
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      fwrite($handle, '<?php
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// This file was generated automatically by Enano. You should not edit this file because any changes you make
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// to it will not be visible in the ACP and all changes will be lost upon any changes to strings in the admin panel.
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   261
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   262
$lang_cache = ');
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   263
      
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   264
      $exported = $this->var_export_string($this->strings);
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   265
      if ( empty($exported) )
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   266
        // Ehh, that's not good
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        $db->_die('lang.php - load_file(): var_export_string() failed');
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   268
      
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
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   269
      fwrite($handle, $exported . '; ?>');
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   270
      
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
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   271
      // Clean up
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   272
      unset($exported, $langdata);
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   273
      
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   274
      // Done =)
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
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   275
      fclose($handle);
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   276
    }
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   277
  }
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   278
  
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   279
  /**
205
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   * Merges a standard language assoc array ($arr[cat][stringid]) with the master in RAM.
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   * @param array
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   282
   */
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  function merge($strings)
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  {
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    // This is stupidly simple.
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   287
    foreach ( $strings as $cat_id => $contents )
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   288
    {
243
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   289
      if ( !isset($this->strings[$cat_id]) || ( isset($this->strings[$cat_id]) && !is_array($this->strings[$cat_id]) ) )
205
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        $this->strings[$cat_id] = array();
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   291
      foreach ( $contents as $string_id => $string )
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   292
      {
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   293
        $this->strings[$cat_id][$string_id] = $string;
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diff changeset
   294
      }
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diff changeset
   295
    }
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diff changeset
   296
  }
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   297
  
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   298
  /**
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   299
   * Imports a JSON-format language file into the database and merges with current strings.
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   300
   * @param string Path to the JSON file to load
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   301
   */
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   302
  
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   303
  function import($file)
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   304
  {
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   305
    global $db, $session, $paths, $template, $plugins; // Common objects
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diff changeset
   306
    
c4542792db2b Localization low-level framework added
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diff changeset
   307
    if ( !file_exists($file) )
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diff changeset
   308
      $db->_die('lang.php - can\'t import language file: string file doesn\'t exist');
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diff changeset
   309
    
241
c671f3bb8aed Trying to get lang import to work in the installer; it's not working ATM - cache file is generated with lang_id = 0. Syncing to Nighthawk.
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diff changeset
   310
    if ( $this->lang_id == 0 )
c671f3bb8aed Trying to get lang import to work in the installer; it's not working ATM - cache file is generated with lang_id = 0. Syncing to Nighthawk.
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diff changeset
   311
      $db->_die('lang.php - BUG: trying to perform import when $lang->lang_id == 0');
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diff changeset
   312
    
205
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   313
    $contents = trim(@file_get_contents($file));
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diff changeset
   314
    
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   315
    if ( empty($contents) )
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diff changeset
   316
      $db->_die('lang.php - can\'t load the contents of the language file');
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   317
    
c4542792db2b Localization low-level framework added
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diff changeset
   318
    // Trim off all text before and after the starting and ending braces
c4542792db2b Localization low-level framework added
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parents:
diff changeset
   319
    $contents = preg_replace('/^([^{]+)\{/', '{', $contents);
c4542792db2b Localization low-level framework added
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diff changeset
   320
    $contents = preg_replace('/\}([^}]+)$/', '}', $contents);
c4542792db2b Localization low-level framework added
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parents:
diff changeset
   321
    
334
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
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diff changeset
   322
    // Correct syntax to be nice to the json parser
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
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diff changeset
   323
    
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
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diff changeset
   324
    // eliminate comments
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
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diff changeset
   325
    $contents = preg_replace(array(
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
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diff changeset
   326
            // eliminate single line comments in '// ...' form
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
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diff changeset
   327
            '#^\s*//(.+)$#m',
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
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diff changeset
   328
            // eliminate multi-line comments in '/* ... */' form, at start of string
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
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parents: 243
diff changeset
   329
            '#^\s*/\*(.+)\*/#Us',
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   330
            // eliminate multi-line comments in '/* ... */' form, at end of string
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   331
            '#/\*(.+)\*/\s*$#Us'
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   332
          ), '', $contents);
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   333
    
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   334
    $contents = preg_replace('/([,\{\[])([\s]*?)([a-z0-9_]+)([\s]*?):/', '\\1\\2"\\3" :', $contents);
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   335
    
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   336
    try
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   337
    {
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   338
      $langdata = enano_json_decode($contents);
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   339
    }
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   340
    catch(Zend_Json_Exception $e)
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   341
    {
335
67bd3121a12e Replaced TinyMCE 2.x with 3.0 beta 3. Supports everything but IE. Also rewrote the editor interface completely from the ground up.
Dan
parents: 334
diff changeset
   342
      $db->_die('lang.php - Exception caught by JSON parser</p><pre>' . htmlspecialchars(print_r($e, true)) . '</pre><p>');
334
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   343
      exit;
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   344
    }
205
c4542792db2b Localization low-level framework added
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parents:
diff changeset
   345
    
c4542792db2b Localization low-level framework added
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parents:
diff changeset
   346
    if ( !is_array($langdata) )
334
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   347
    {
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   348
      $db->_die('lang.php - invalid or non-well-formed language file');
c72b545f1304 More localization work. Resolved major issue with JSON parser not parsing files over ~50KB. Switched JSON parser to the one from the Zend Framework (BSD licensed). Forced to split enano.json into five different files.
Dan
parents: 243
diff changeset
   349
    }
205
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parents:
diff changeset
   350
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   351
    if ( !isset($langdata['categories']) || !isset($langdata['strings']) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   352
      $db->_die('lang.php - language file does not contain the proper items');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   353
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   354
    $insert_list = array();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   355
    $delete_list = array();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   356
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   357
    foreach ( $langdata['categories'] as $category )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   358
    {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   359
      if ( isset($langdata['strings'][$category]) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   360
      {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   361
        foreach ( $langdata['strings'][$category] as $string_name => $string_value )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   362
        {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   363
          $string_name = $db->escape($string_name);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   364
          $string_value = $db->escape($string_value);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   365
          $category_name = $db->escape($category);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   366
          $insert_list[] = "({$this->lang_id}, '$category_name', '$string_name', '$string_value')";
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   367
          $delete_list[] = "( lang_id = {$this->lang_id} AND string_category = '$category_name' AND string_name = '$string_name' )";
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   368
        }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   369
      }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   370
    }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   371
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   372
    $delete_list = implode(" OR\n  ", $delete_list);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   373
    $sql = "DELETE FROM " . table_prefix . "language_strings WHERE $delete_list;";
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   374
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   375
    // Free some memory
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   376
    unset($delete_list);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   377
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   378
    // Run the query
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   379
    $q = $db->sql_query($sql);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   380
    if ( !$q )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   381
      $db->_die('lang.php - couldn\'t kill off them old strings');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   382
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   383
    $insert_list = implode(",\n  ", $insert_list);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   384
    $sql = "INSERT INTO " . table_prefix . "language_strings(lang_id, string_category, string_name, string_content) VALUES\n  $insert_list;";
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   385
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   386
    // Free some memory
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   387
    unset($insert_list);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   388
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   389
    // Run the query
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   390
    $q = $db->sql_query($sql);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   391
    if ( !$q )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   392
      $db->_die('lang.php - couldn\'t insert strings in import()');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   393
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   394
    // YAY! done!
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   395
    // This will regenerate the cache file if possible.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   396
    $this->regen_caches();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   397
  }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   398
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   399
  /**
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   400
   * Refetches the strings and writes out the cache file.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   401
   */
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   402
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   403
  function regen_caches()
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   404
  {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   405
    global $db, $session, $paths, $template, $plugins; // Common objects
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   406
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   407
    $lang_file = ENANO_ROOT . "/cache/lang_{$this->lang_id}.php";
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   408
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   409
    // Refresh the strings in RAM to the latest copies in the DB
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   410
    $this->fetch(false);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   411
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   412
    $handle = @fopen($lang_file, 'w');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   413
    if ( !$handle )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   414
      // Couldn't open the file. Silently fail and let the strings come from the database.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   415
      return false;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   416
      
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   417
    // The file's open, that means we should be good.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   418
    fwrite($handle, '<?php
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   419
// This file was generated automatically by Enano. You should not edit this file because any changes you make
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   420
// to it will not be visible in the ACP and all changes will be lost upon any changes to strings in the admin panel.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   421
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   422
$lang_cache = ');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   423
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   424
    $exported = $this->var_export_string($this->strings);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   425
    if ( empty($exported) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   426
      // Ehh, that's not good
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   427
      $db->_die('lang.php - var_export_string() failed');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   428
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   429
    fwrite($handle, $exported . '; ?>');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   430
    
210
2b283402e4e4 Added language export to JSON page and localization for Javascript using $lang.get(). Localized AJAX login interface.
Dan
parents: 209
diff changeset
   431
    // Update timestamp in database
2b283402e4e4 Added language export to JSON page and localization for Javascript using $lang.get(). Localized AJAX login interface.
Dan
parents: 209
diff changeset
   432
    $q = $db->sql_query('UPDATE ' . table_prefix . 'language SET last_changed = ' . time() . ' WHERE lang_id = ' . $this->lang_id . ';');
2b283402e4e4 Added language export to JSON page and localization for Javascript using $lang.get(). Localized AJAX login interface.
Dan
parents: 209
diff changeset
   433
    if ( !$q )
2b283402e4e4 Added language export to JSON page and localization for Javascript using $lang.get(). Localized AJAX login interface.
Dan
parents: 209
diff changeset
   434
      $db->_die('lang.php - updating timestamp on language');
2b283402e4e4 Added language export to JSON page and localization for Javascript using $lang.get(). Localized AJAX login interface.
Dan
parents: 209
diff changeset
   435
    
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   436
    // Done =)
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   437
    fclose($handle);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   438
  }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   439
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   440
  /**
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   441
   * Calls var_export() on whatever, and returns the function's output.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   442
   * @param mixed Whatever you want var_exported. Usually an array.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   443
   * @return string
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   444
   */
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   445
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   446
  function var_export_string($val)
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   447
  {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   448
    ob_start();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   449
    var_export($val);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   450
    $contents = ob_get_contents();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   451
    ob_end_clean();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   452
    return $contents;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   453
  }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   454
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   455
  /**
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   456
   * Fetches a language string from the cache in RAM. If it isn't there, it will call fetch() again and then try. If it still can't find it, it will ask for the string
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   457
   * in the default language. If even then the string can't be found, this function will return what was passed to it.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   458
   *
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   459
   * This will also templatize strings. If a string contains variables in the format %foo%, you may specify the second parameter as an associative array in the format
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   460
   * of 'foo' => 'foo substitute'.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   461
   *
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   462
   * @param string ID of the string to fetch. This will always be in the format of category_stringid.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   463
   * @param array Optional. Associative array of substitutions.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   464
   * @return string
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   465
   */
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   466
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   467
  function get($string_id, $substitutions = false)
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   468
  {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   469
    // Extract the category and string ID
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   470
    $category = substr($string_id, 0, ( strpos($string_id, '_') ));
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   471
    $string_name = substr($string_id, ( strpos($string_id, '_') + 1 ));
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   472
    $found = false;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   473
    if ( isset($this->strings[$category]) && isset($this->strings[$category][$string_name]) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   474
    {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   475
      $found = true;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   476
      $string = $this->strings[$category][$string_name];
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   477
    }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   478
    if ( !$found )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   479
    {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   480
      // Ehh, the string wasn't found. Rerun fetch() and try again.
243
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
Dan
parents: 241
diff changeset
   481
      if ( defined('IN_ENANO_INSTALL') )
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
Dan
parents: 241
diff changeset
   482
      {
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
Dan
parents: 241
diff changeset
   483
        return $string_id;
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
Dan
parents: 241
diff changeset
   484
      }
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   485
      $this->fetch();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   486
      if ( isset($this->strings[$category]) && isset($this->strings[$category][$string_name]) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   487
      {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   488
        $found = true;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   489
        $string = $this->strings[$category][$string_name];
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   490
      }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   491
      if ( !$found )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   492
      {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   493
        // STILL not found. Check the default language.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   494
        $lang_default = ( $x = getConfig('default_language') ) ? intval($x) : $this->lang_id;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   495
        if ( $lang_default != $this->lang_id )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   496
        {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   497
          if ( !is_object($this->default) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   498
            $this->default = new Language($lang_default);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   499
          return $this->default->get($string_id, $substitutions);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   500
        }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   501
      }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   502
    }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   503
    if ( !$found )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   504
    {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   505
      // Alright, it's nowhere. Return the input, grumble grumble...
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   506
      return $string_id;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   507
    }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   508
    // Found it!
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   509
    // Perform substitutions.
209
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   510
    // if ( is_array($substitutions) )
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   511
    //   die('<pre>' . print_r($substitutions, true) . '</pre>');
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   512
    if ( !is_array($substitutions) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   513
      $substitutions = array();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   514
    return $this->substitute($string, $substitutions);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   515
  }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   516
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   517
  /**
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   518
   * Processes substitutions.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   519
   * @param string
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   520
   * @param array
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   521
   * @return string
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   522
   */
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   523
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   524
  function substitute($string, $subs)
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   525
  {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   526
    preg_match_all('/%this\.([a-z0-9_]+)%/', $string, $matches);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   527
    if ( count($matches[0]) > 0 )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   528
    {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   529
      foreach ( $matches[1] as $i => $string_id )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   530
      {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   531
        $result = $this->get($string_id);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   532
        $string = str_replace($matches[0][$i], $result, $string);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   533
      }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   534
    }
209
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   535
    preg_match_all('/%config\.([a-z0-9_]+)%/', $string, $matches);
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   536
    if ( count($matches[0]) > 0 )
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   537
    {
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   538
      foreach ( $matches[1] as $i => $string_id )
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   539
      {
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   540
        $result = getConfig($string_id);
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   541
        $string = str_replace($matches[0][$i], $result, $string);
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   542
      }
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   543
    }
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   544
    foreach ( $subs as $key => $value )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   545
    {
209
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   546
      $subs[$key] = strval($value);
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   547
      $string = str_replace("%{$key}%", "{$subs[$key]}", $string);
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   548
    }
355
d15e4411ef65 Fixed a coupla minor bugs with the template_nodb class wrongly referencing $lang
Dan
parents: 348
diff changeset
   549
    return $string . '*';
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   550
  }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   551
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   552
} // class Language
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   553
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   554
?>