includes/lang.php
author Dan
Thu, 03 Jan 2008 18:39:19 -0500
changeset 347 299a90e28abc
parent 345 4ccdfeee9a11
child 348 87e08a6e4fec
permissions -rw-r--r--
Localized and separated Admin:GroupManager
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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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      $db->_die('lang.php - requested JSON file doesn\'t exist');
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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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      $langdata = enano_json_decode($contents);
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      if ( !is_array($langdata) )
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        $db->_die('lang.php - invalid language file');
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      if ( !isset($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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      $this->merge($langdata['strings']);
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      $lang_file = "./cache/lang_json_{$checksum}.php";
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      $handle = @fopen($lang_file, 'w');
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      if ( !$handle )
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        // Couldn't open the file. Silently fail and let the strings come from RAM.
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        return false;
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      // The file's open, that means we should be good.
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      fwrite($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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$lang_cache = ');
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      $exported = $this->var_export_string($this->strings);
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      if ( empty($exported) )
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        // Ehh, that's not good
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        $db->_die('lang.php - load_file(): var_export_string() failed');
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      fwrite($handle, $exported . '; ?>');
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      // Clean up
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      unset($exported, $langdata);
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   243
      // Done =)
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   244
      fclose($handle);
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   245
    }
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   246
  }
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   247
  
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  /**
205
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   * Merges a standard language assoc array ($arr[cat][stringid]) with the master in RAM.
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   * @param array
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   */
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  function merge($strings)
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  {
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    // This is stupidly simple.
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    foreach ( $strings as $cat_id => $contents )
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    {
243
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      if ( !isset($this->strings[$cat_id]) || ( isset($this->strings[$cat_id]) && !is_array($this->strings[$cat_id]) ) )
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        $this->strings[$cat_id] = array();
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      foreach ( $contents as $string_id => $string )
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      {
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        $this->strings[$cat_id][$string_id] = $string;
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      }
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    }
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  }
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  /**
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   * Imports a JSON-format language file into the database and merges with current strings.
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   * @param string Path to the JSON file to load
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   */
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  function import($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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      $db->_die('lang.php - can\'t import language file: string file doesn\'t exist');
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    if ( $this->lang_id == 0 )
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      $db->_die('lang.php - BUG: trying to perform import when $lang->lang_id == 0');
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   281
    
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    $contents = trim(@file_get_contents($file));
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    if ( empty($contents) )
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   285
      $db->_die('lang.php - can\'t load the contents of the language file');
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   287
    // Trim off all text before and after the starting and ending braces
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   288
    $contents = preg_replace('/^([^{]+)\{/', '{', $contents);
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   289
    $contents = preg_replace('/\}([^}]+)$/', '}', $contents);
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334
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   291
    // Correct syntax to be nice to the json parser
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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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   293
    // eliminate comments
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   294
    $contents = preg_replace(array(
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   295
            // eliminate single line comments in '// ...' form
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   296
            '#^\s*//(.+)$#m',
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   297
            // eliminate multi-line comments in '/* ... */' form, at start of string
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   298
            '#^\s*/\*(.+)\*/#Us',
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   299
            // eliminate multi-line comments in '/* ... */' form, at end of string
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            '#/\*(.+)\*/\s*$#Us'
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   301
          ), '', $contents);
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   302
    
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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   303
    $contents = preg_replace('/([,\{\[])([\s]*?)([a-z0-9_]+)([\s]*?):/', '\\1\\2"\\3" :', $contents);
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   304
    
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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   305
    try
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   306
    {
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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   307
      $langdata = enano_json_decode($contents);
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diff changeset
   308
    }
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   309
    catch(Zend_Json_Exception $e)
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   310
    {
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.
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diff changeset
   311
      $db->_die('lang.php - Exception caught by JSON parser</p><pre>' . htmlspecialchars(print_r($e, true)) . '</pre><p>');
334
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   312
      exit;
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   313
    }
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   314
    
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   315
    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.
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diff changeset
   316
    {
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
   317
      $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.
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diff changeset
   318
    }
205
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   319
    
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   320
    if ( !isset($langdata['categories']) || !isset($langdata['strings']) )
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   321
      $db->_die('lang.php - language file does not contain the proper items');
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diff changeset
   322
    
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parents:
diff changeset
   323
    $insert_list = array();
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parents:
diff changeset
   324
    $delete_list = array();
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parents:
diff changeset
   325
    
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parents:
diff changeset
   326
    foreach ( $langdata['categories'] as $category )
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parents:
diff changeset
   327
    {
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parents:
diff changeset
   328
      if ( isset($langdata['strings'][$category]) )
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parents:
diff changeset
   329
      {
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parents:
diff changeset
   330
        foreach ( $langdata['strings'][$category] as $string_name => $string_value )
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parents:
diff changeset
   331
        {
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parents:
diff changeset
   332
          $string_name = $db->escape($string_name);
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parents:
diff changeset
   333
          $string_value = $db->escape($string_value);
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parents:
diff changeset
   334
          $category_name = $db->escape($category);
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parents:
diff changeset
   335
          $insert_list[] = "({$this->lang_id}, '$category_name', '$string_name', '$string_value')";
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diff changeset
   336
          $delete_list[] = "( lang_id = {$this->lang_id} AND string_category = '$category_name' AND string_name = '$string_name' )";
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diff changeset
   337
        }
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diff changeset
   338
      }
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parents:
diff changeset
   339
    }
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parents:
diff changeset
   340
    
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parents:
diff changeset
   341
    $delete_list = implode(" OR\n  ", $delete_list);
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parents:
diff changeset
   342
    $sql = "DELETE FROM " . table_prefix . "language_strings WHERE $delete_list;";
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parents:
diff changeset
   343
    
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diff changeset
   344
    // Free some memory
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diff changeset
   345
    unset($delete_list);
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parents:
diff changeset
   346
    
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parents:
diff changeset
   347
    // Run the query
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   348
    $q = $db->sql_query($sql);
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parents:
diff changeset
   349
    if ( !$q )
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diff changeset
   350
      $db->_die('lang.php - couldn\'t kill off them old strings');
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parents:
diff changeset
   351
    
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diff changeset
   352
    $insert_list = implode(",\n  ", $insert_list);
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   353
    $sql = "INSERT INTO " . table_prefix . "language_strings(lang_id, string_category, string_name, string_content) VALUES\n  $insert_list;";
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   354
    
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parents:
diff changeset
   355
    // Free some memory
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parents:
diff changeset
   356
    unset($insert_list);
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parents:
diff changeset
   357
    
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parents:
diff changeset
   358
    // Run the query
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parents:
diff changeset
   359
    $q = $db->sql_query($sql);
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parents:
diff changeset
   360
    if ( !$q )
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parents:
diff changeset
   361
      $db->_die('lang.php - couldn\'t insert strings in import()');
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parents:
diff changeset
   362
    
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parents:
diff changeset
   363
    // YAY! done!
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parents:
diff changeset
   364
    // This will regenerate the cache file if possible.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   365
    $this->regen_caches();
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parents:
diff changeset
   366
  }
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parents:
diff changeset
   367
  
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parents:
diff changeset
   368
  /**
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parents:
diff changeset
   369
   * Refetches the strings and writes out the cache file.
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parents:
diff changeset
   370
   */
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parents:
diff changeset
   371
  
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parents:
diff changeset
   372
  function regen_caches()
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parents:
diff changeset
   373
  {
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parents:
diff changeset
   374
    global $db, $session, $paths, $template, $plugins; // Common objects
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parents:
diff changeset
   375
    
c4542792db2b Localization low-level framework added
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parents:
diff changeset
   376
    $lang_file = ENANO_ROOT . "/cache/lang_{$this->lang_id}.php";
c4542792db2b Localization low-level framework added
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parents:
diff changeset
   377
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   378
    // Refresh the strings in RAM to the latest copies in the DB
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   379
    $this->fetch(false);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   380
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   381
    $handle = @fopen($lang_file, 'w');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   382
    if ( !$handle )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   383
      // 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
   384
      return false;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   385
      
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   386
    // The file's open, that means we should be good.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   387
    fwrite($handle, '<?php
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   388
// This file was generated automatically by Enano. You should not edit this file because any changes you make
c4542792db2b Localization low-level framework added
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parents:
diff changeset
   389
// 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
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parents:
diff changeset
   390
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   391
$lang_cache = ');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   392
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   393
    $exported = $this->var_export_string($this->strings);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   394
    if ( empty($exported) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   395
      // Ehh, that's not good
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   396
      $db->_die('lang.php - var_export_string() failed');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   397
    
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   398
    fwrite($handle, $exported . '; ?>');
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   399
    
210
2b283402e4e4 Added language export to JSON page and localization for Javascript using $lang.get(). Localized AJAX login interface.
Dan
parents: 209
diff changeset
   400
    // 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
   401
    $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 $lang.get(). Localized AJAX login interface.
Dan
parents: 209
diff changeset
   402
    if ( !$q )
2b283402e4e4 Added language export to JSON page and localization for Javascript using $lang.get(). Localized AJAX login interface.
Dan
parents: 209
diff changeset
   403
      $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
   404
    
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   405
    // Done =)
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   406
    fclose($handle);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   407
  }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   408
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   409
  /**
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   410
   * Calls var_export() on whatever, and returns the function's output.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   411
   * @param mixed Whatever you want var_exported. Usually an array.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   412
   * @return string
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   413
   */
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   414
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   415
  function var_export_string($val)
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   416
  {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   417
    ob_start();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   418
    var_export($val);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   419
    $contents = ob_get_contents();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   420
    ob_end_clean();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   421
    return $contents;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   422
  }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   423
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   424
  /**
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   425
   * 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
   426
   * 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
   427
   *
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   428
   * 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
   429
   * of 'foo' => 'foo substitute'.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   430
   *
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   431
   * @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
   432
   * @param array Optional. Associative array of substitutions.
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 get($string_id, $substitutions = false)
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   437
  {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   438
    // Extract the category and string ID
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   439
    $category = substr($string_id, 0, ( strpos($string_id, '_') ));
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   440
    $string_name = substr($string_id, ( strpos($string_id, '_') + 1 ));
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   441
    $found = false;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   442
    if ( isset($this->strings[$category]) && isset($this->strings[$category][$string_name]) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   443
    {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   444
      $found = true;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   445
      $string = $this->strings[$category][$string_name];
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   446
    }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   447
    if ( !$found )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   448
    {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   449
      // 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
   450
      if ( defined('IN_ENANO_INSTALL') )
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
Dan
parents: 241
diff changeset
   451
      {
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
Dan
parents: 241
diff changeset
   452
        return $string_id;
a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
Dan
parents: 241
diff changeset
   453
      }
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   454
      $this->fetch();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   455
      if ( isset($this->strings[$category]) && isset($this->strings[$category][$string_name]) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   456
      {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   457
        $found = true;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   458
        $string = $this->strings[$category][$string_name];
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   459
      }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   460
      if ( !$found )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   461
      {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   462
        // STILL not found. Check the default language.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   463
        $lang_default = ( $x = getConfig('default_language') ) ? intval($x) : $this->lang_id;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   464
        if ( $lang_default != $this->lang_id )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   465
        {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   466
          if ( !is_object($this->default) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   467
            $this->default = new Language($lang_default);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   468
          return $this->default->get($string_id, $substitutions);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   469
        }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   470
      }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   471
    }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   472
    if ( !$found )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   473
    {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   474
      // Alright, it's nowhere. Return the input, grumble grumble...
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   475
      return $string_id;
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   476
    }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   477
    // Found it!
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   478
    // Perform substitutions.
209
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   479
    // if ( is_array($substitutions) )
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   480
    //   die('<pre>' . print_r($substitutions, true) . '</pre>');
205
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   481
    if ( !is_array($substitutions) )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   482
      $substitutions = array();
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   483
    return $this->substitute($string, $substitutions);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   484
  }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   485
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   486
  /**
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   487
   * Processes substitutions.
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   488
   * @param string
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   489
   * @param array
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   490
   * @return string
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   491
   */
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   492
  
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   493
  function substitute($string, $subs)
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   494
  {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   495
    preg_match_all('/%this\.([a-z0-9_]+)%/', $string, $matches);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   496
    if ( count($matches[0]) > 0 )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   497
    {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   498
      foreach ( $matches[1] as $i => $string_id )
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   499
      {
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   500
        $result = $this->get($string_id);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   501
        $string = str_replace($matches[0][$i], $result, $string);
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   502
      }
c4542792db2b Localization low-level framework added
Dan
parents:
diff changeset
   503
    }
209
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   504
    preg_match_all('/%config\.([a-z0-9_]+)%/', $string, $matches);
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   505
    if ( count($matches[0]) > 0 )
8a00247d1dee Login page mostly localized
Dan
parents: 205
diff changeset
   506
    {
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diff changeset
   507
      foreach ( $matches[1] as $i => $string_id )
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diff changeset
   508
      {
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diff changeset
   509
        $result = getConfig($string_id);
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diff changeset
   510
        $string = str_replace($matches[0][$i], $result, $string);
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diff changeset
   511
      }
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diff changeset
   512
    }
205
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   513
    foreach ( $subs as $key => $value )
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   514
    {
209
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diff changeset
   515
      $subs[$key] = strval($value);
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diff changeset
   516
      $string = str_replace("%{$key}%", "{$subs[$key]}", $string);
205
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   517
    }
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a7d0f2711df1 Installer localization started. Welcome, License, and SysReqs pages are fully localized.
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diff changeset
   518
    return "{$string}*";
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   519
  }
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   520
  
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   521
} // class Language
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   522
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   523
?>