includes/lang.php
author Dan
Sat, 26 Jan 2008 11:51:19 -0500
changeset 376 66732bd4532c
parent 372 5bd429428101
child 377 bb3e6c3bd4f4
permissions -rw-r--r--
Finished (or nearly finished) the admin language CP
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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 = $lang_default ORDER BY is_default ASC LIMIT 1;");
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    if ( !$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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   229
            ), '', $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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   234
      {
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        $langdata = enano_json_decode($contents);
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   236
      }
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      catch(Zend_Json_Exception $e)
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   238
      {
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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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   240
        exit;
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   241
      }
243
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   242
    
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   243
      if ( !is_array($langdata) )
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   244
        $db->_die('lang.php - invalid language file');
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   245
      
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   246
      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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   248
      
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   249
      $this->merge($langdata['strings']);
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   250
      
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   251
      $lang_file = "./cache/lang_json_{$checksum}.php";
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   252
      
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      $handle = @fopen($lang_file, 'w');
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   254
      if ( !$handle )
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        // Couldn't open the file. Silently fail and let the strings come from RAM.
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   256
        return false;
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   257
        
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   258
      // The file's open, that means we should be good.
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   259
      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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   261
// 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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   262
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   263
$lang_cache = ');
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   264
      
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
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   265
      $exported = $this->var_export_string($this->strings);
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   266
      if ( empty($exported) )
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   267
        // Ehh, that's not good
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        $db->_die('lang.php - load_file(): var_export_string() failed');
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   269
      
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
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   270
      fwrite($handle, $exported . '; ?>');
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   271
      
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
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   272
      // Clean up
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   273
      unset($exported, $langdata);
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   274
      
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
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   275
      // Done =)
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
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   276
      fclose($handle);
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   277
    }
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   278
  }
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   279
  
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   280
  /**
205
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   281
   * Merges a standard language assoc array ($arr[cat][stringid]) with the master in RAM.
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   * @param array
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   283
   */
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   284
  
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   285
  function merge($strings)
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   286
  {
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   287
    // This is stupidly simple.
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   288
    foreach ( $strings as $cat_id => $contents )
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   289
    {
243
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   290
      if ( !isset($this->strings[$cat_id]) || ( isset($this->strings[$cat_id]) && !is_array($this->strings[$cat_id]) ) )
205
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   291
        $this->strings[$cat_id] = array();
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diff changeset
   292
      foreach ( $contents as $string_id => $string )
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diff changeset
   293
      {
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diff changeset
   294
        $this->strings[$cat_id][$string_id] = $string;
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diff changeset
   295
      }
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diff changeset
   296
    }
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diff changeset
   297
  }
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diff changeset
   298
  
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diff changeset
   299
  /**
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   300
   * Imports a JSON-format language file into the database and merges with current strings.
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diff changeset
   301
   * @param string Path to the JSON file to load
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   302
   */
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diff changeset
   303
  
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diff changeset
   304
  function import($file)
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diff changeset
   305
  {
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diff changeset
   306
    global $db, $session, $paths, $template, $plugins; // Common objects
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diff changeset
   307
    
c4542792db2b Localization low-level framework added
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diff changeset
   308
    if ( !file_exists($file) )
c4542792db2b Localization low-level framework added
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diff changeset
   309
      $db->_die('lang.php - can\'t import language file: string file doesn\'t exist');
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diff changeset
   310
    
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.
Dan
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diff changeset
   311
    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.
Dan
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diff changeset
   312
      $db->_die('lang.php - BUG: trying to perform import when $lang->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
   313
    
205
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   314
    $contents = trim(@file_get_contents($file));
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diff changeset
   315
    
c4542792db2b Localization low-level framework added
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diff changeset
   316
    if ( empty($contents) )
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diff changeset
   317
      $db->_die('lang.php - can\'t load the contents of the language file');
c4542792db2b Localization low-level framework added
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diff changeset
   318
    
c4542792db2b Localization low-level framework added
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diff changeset
   319
    // Trim off all text before and after the starting and ending braces
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   320
    $contents = preg_replace('/^([^{]+)\{/', '{', $contents);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   321
    $contents = preg_replace('/\}([^}]+)$/', '}', $contents);
c4542792db2b Localization low-level framework added
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diff changeset
   322
    
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
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diff changeset
   323
    // Correct syntax to be nice to the json parser
372
5bd429428101 A number of scattered changes. Profiler added and only enabled in debug mode (currently on), but awfully useful for fixing performance in the future. Started work on Admin:LangManager
Dan
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diff changeset
   324
    $contents = enano_clean_json($contents);
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
   325
    
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
    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
   327
    {
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
   328
      $langdata = enano_json_decode($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
   329
    }
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
    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
   331
    {
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
   332
      $db->_die('lang.php - Exception caught by JSON parser</p><pre>' . htmlspecialchars(print_r($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
   333
      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
   334
    }
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   335
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   336
    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
   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
      $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
   339
    }
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   340
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   341
    if ( !isset($langdata['categories']) || !isset($langdata['strings']) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   342
      $db->_die('lang.php - language file does not contain the proper items');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   343
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   344
    $insert_list = array();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   345
    $delete_list = array();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   346
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   347
    foreach ( $langdata['categories'] as $category )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   348
    {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   349
      if ( isset($langdata['strings'][$category]) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   350
      {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   351
        foreach ( $langdata['strings'][$category] as $string_name => $string_value )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   352
        {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   353
          $string_name = $db->escape($string_name);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   354
          $string_value = $db->escape($string_value);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   355
          $category_name = $db->escape($category);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   356
          $insert_list[] = "({$this->lang_id}, '$category_name', '$string_name', '$string_value')";
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   357
          $delete_list[] = "( lang_id = {$this->lang_id} AND string_category = '$category_name' AND string_name = '$string_name' )";
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   358
        }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   359
      }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   360
    }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   361
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   362
    $delete_list = implode(" OR\n  ", $delete_list);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   363
    $sql = "DELETE FROM " . table_prefix . "language_strings WHERE $delete_list;";
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   364
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   365
    // Free some memory
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   366
    unset($delete_list);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   367
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   368
    // Run the query
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   369
    $q = $db->sql_query($sql);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   370
    if ( !$q )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   371
      $db->_die('lang.php - couldn\'t kill off them old strings');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   372
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   373
    $insert_list = implode(",\n  ", $insert_list);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   374
    $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
   375
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   376
    // Free some memory
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   377
    unset($insert_list);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   378
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   379
    // Run the query
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   380
    $q = $db->sql_query($sql);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   381
    if ( !$q )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   382
      $db->_die('lang.php - couldn\'t insert strings in import()');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   383
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   384
    // YAY! done!
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   385
    // This will regenerate the cache file if possible.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   386
    $this->regen_caches();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   387
  }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   388
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   389
  /**
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   390
   * Refetches the strings and writes out the cache file.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   391
   */
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   392
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   393
  function regen_caches()
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   394
  {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   395
    global $db, $session, $paths, $template, $plugins; // Common objects
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   396
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   397
    $lang_file = ENANO_ROOT . "/cache/lang_{$this->lang_id}.php";
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   398
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   399
    // Refresh the strings in RAM to the latest copies in the DB
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   400
    $this->fetch(false);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   401
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   402
    $handle = @fopen($lang_file, 'w');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   403
    if ( !$handle )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   404
      // 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
   405
      return false;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   406
      
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   407
    // The file's open, that means we should be good.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   408
    fwrite($handle, '<?php
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   409
// 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
   410
// 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
   411
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   412
$lang_cache = ');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   413
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   414
    $exported = $this->var_export_string($this->strings);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   415
    if ( empty($exported) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   416
      // Ehh, that's not good
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   417
      $db->_die('lang.php - var_export_string() failed');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   418
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   419
    fwrite($handle, $exported . '; ?>');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   420
    
210
2b283402e4e4 Added language export to JSON page and localization for Javascript using $lang.get(). Localized AJAX login interface.
Dan
parents: 209
diff changeset
   421
    // 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
   422
    $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 $lang.get(). Localized AJAX login interface.
Dan
parents: 209
diff changeset
   423
    if ( !$q )
2b283402e4e4 Added language export to JSON page and localization for Javascript using $lang.get(). Localized AJAX login interface.
Dan
parents: 209
diff changeset
   424
      $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
   425
    
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   426
    // Done =)
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   427
    fclose($handle);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   428
  }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   429
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   430
  /**
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   431
   * Calls var_export() on whatever, and returns the function's output.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   432
   * @param mixed Whatever you want var_exported. Usually an array.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   433
   * @return string
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   434
   */
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   435
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   436
  function var_export_string($val)
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   437
  {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   438
    ob_start();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   439
    var_export($val);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   440
    $contents = ob_get_contents();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   441
    ob_end_clean();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   442
    return $contents;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   443
  }
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
   * 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
   447
   * 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
   448
   *
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   449
   * 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
   450
   * of 'foo' => 'foo substitute'.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   451
   *
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   452
   * @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
   453
   * @param array Optional. Associative array of substitutions.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   454
   * @return string
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   455
   */
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   456
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   457
  function get($string_id, $substitutions = false)
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   458
  {
376
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   459
    if ( !is_array($substitutions) )
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   460
      $substitutions = array();
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   461
    return $this->substitute($this->get_uncensored($string_id), $substitutions);
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   462
  }
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   463
  
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   464
  /**
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   465
   * The same as get(), but does not perform any substitution or filtering. Used in get() (of course) and in the admin panel, where
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   466
   * strings are updated only if they were changed.
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   467
   *
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   468
   * @param string ID of the string to fetch. This will always be in the format of category_stringid.
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   469
   * @param array Optional. Associative array of substitutions.
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   470
   * @return string
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   471
   */
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   472
  
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   473
  function get_uncensored($string_id, $substitutions = false)
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   474
  {
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   475
    // Extract the category and string ID
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   476
    $category = substr($string_id, 0, ( strpos($string_id, '_') ));
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   477
    $string_name = substr($string_id, ( strpos($string_id, '_') + 1 ));
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   478
    $found = false;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   479
    if ( isset($this->strings[$category]) && isset($this->strings[$category][$string_name]) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   480
    {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   481
      $found = true;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   482
      $string = $this->strings[$category][$string_name];
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   483
    }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   484
    if ( !$found )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   485
    {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   486
      // 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
   487
      if ( defined('IN_ENANO_INSTALL') )
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
Dan
parents: 241
diff changeset
   488
      {
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
Dan
parents: 241
diff changeset
   489
        return $string_id;
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
Dan
parents: 241
diff changeset
   490
      }
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   491
      $this->fetch();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   492
      if ( isset($this->strings[$category]) && isset($this->strings[$category][$string_name]) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   493
      {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   494
        $found = true;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   495
        $string = $this->strings[$category][$string_name];
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   496
      }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   497
      if ( !$found )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   498
      {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   499
        // STILL not found. Check the default language.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   500
        $lang_default = ( $x = getConfig('default_language') ) ? intval($x) : $this->lang_id;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   501
        if ( $lang_default != $this->lang_id )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   502
        {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   503
          if ( !is_object($this->default) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   504
            $this->default = new Language($lang_default);
376
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   505
          return $this->default->get_uncensored($string_id);
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   506
        }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   507
      }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   508
    }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   509
    if ( !$found )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   510
    {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   511
      // Alright, it's nowhere. Return the input, grumble grumble...
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   512
      return $string_id;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   513
    }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   514
    // Found it!
376
66732bd4532c Finished (or nearly finished) the admin language CP
Dan
parents: 372
diff changeset
   515
    return $string;
205
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
  /**
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   519
   * Processes substitutions.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   520
   * @param string
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   521
   * @param array
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   522
   * @return string
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   523
   */
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   524
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   525
  function substitute($string, $subs)
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   526
  {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   527
    preg_match_all('/%this\.([a-z0-9_]+)%/', $string, $matches);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   528
    if ( count($matches[0]) > 0 )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   529
    {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   530
      foreach ( $matches[1] as $i => $string_id )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   531
      {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   532
        $result = $this->get($string_id);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   533
        $string = str_replace($matches[0][$i], $result, $string);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   534
      }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   535
    }
209
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   536
    preg_match_all('/%config\.([a-z0-9_]+)%/', $string, $matches);
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   537
    if ( count($matches[0]) > 0 )
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   538
    {
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   539
      foreach ( $matches[1] as $i => $string_id )
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   540
      {
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   541
        $result = getConfig($string_id);
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   542
        $string = str_replace($matches[0][$i], $result, $string);
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   543
      }
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   544
    }
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   545
    foreach ( $subs as $key => $value )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   546
    {
209
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   547
      $subs[$key] = strval($value);
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   548
      $string = str_replace("%{$key}%", "{$subs[$key]}", $string);
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   549
    }
355
d15e4411ef65 Fixed a coupla minor bugs with the template_nodb class wrongly referencing $lang
Dan
parents: 348
diff changeset
   550
    return $string . '*';
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   551
  }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   552
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   553
} // class Language
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   554
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   555
?>