1 files changed, 95 insertions, 0 deletions
diff --git a/website/include/lang.inc.php b/website/include/lang.inc.php
new file mode 100644
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--- /dev/null
+++ b/website/include/lang.inc.php
@@ -0,0 +1,95 @@
+<?php
+/*
+ * This file contains code to set up and use the gettext-based localization
+ * system.
+ *
+ * Copyright 2005 Matt Brubeck
+ * This file is licensed under a Creative Commons license:
+ * http://creativecommons.org/licenses/by/2.0/
+ */
+
+require_once 'HTTP.php';
+
+// Locale configuration variables.
+$domain = "audacity_website";
+$lang = "en";
+$encoding = "UTF-8";
+$cookie_days = 90;
+
+// List of available languages.
+$available_locales = array(
+  // Language code => Full locale name, Human-readable name.
+  "cs" => array("cs_CZ", "Česky"),
+  "de" => array("de_DE", "Deutsch"),
+  "el" => array("el_GR", "Ελληνικά"),
+  "en" => array("en_US", "English"),
+  "es" => array("es_ES", "Espa&ntilde;ol"),
+  "fr" => array("fr_FR", "Français"),
+  "it" => array("it_IT", "Italiano"),
+  "hu" => array("hu_HU", "Magyar"),
+  "nb" => array("nb_NO", "Norsk (Bokm&aring;l)"),
+  "pt" => array("pt_BR", "Portugu&ecirc;s"),
+  "sl" => array("sl_SI", "Sloven&#353;&#269;ina"),
+  "fi" => array("fi_FI", "Suomi"),
+  "sv" => array("sv_SE", "Svenska"),
+  "ja" => array("ja_JP", "日本語"),
+  "ru" => array("ru_RU", "Русский"),
+  "zh-CN" => array("zh_CN.UTF-8", "中文(简)"),
+  "zh-TW" => array("zh_TW.UTF-8", "中文(繁)"),
+);
+
+// Set up the translation variables and libraries.
+function localization_setup() {
+  global $lang, $domain, $encoding, $available_locales, $preferred_lang;
+
+  // Choose a default language based on the client's HTTP headers.
+  // TODO: Replace HTTP::negotiateLanguage with something less buggy.
+  // (See http://www.dracos.co.uk/web/php/HTTP/ for details.)
+  $supported = $available_locales;
+  $preferred_lang = HTTP::negotiateLanguage($supported, $lang);
+  if ($preferred_lang)
+    $lang = $preferred_lang;
+
+  // Override the default if the user has an explicit cookie or query string.
+  $force_lang = get_requested_lang();
+  if ($force_lang && array_key_exists($force_lang, $available_locales))
+    $lang = $force_lang;
+
+  if ($available_locales[$lang]) {
+    // Set the locale.
+    $locale = $available_locales[$lang][0];
+    setlocale(LC_ALL,  $locale);
+
+    // Find the locale directory.
+    $path_parts = pathinfo(__FILE__);
+    $this_dir = $path_parts["dirname"];
+    bindtextdomain($domain, "$this_dir/../locale");
+
+    // Set up gettext message localization.
+    textdomain($domain);
+    bind_textdomain_codeset($domain, $encoding);
+  }
+
+  // Tell clients to cache different languages separately.
+  header("Vary: Accept-Language");
+}
+
+// Return the explicitly requested language, if available.
+function get_requested_lang() {
+  global $cookie_days;
+  $result = $_COOKIE["lang"];
+  if ($_GET["lang"]) {
+    $result = $_GET["lang"];
+    setcookie("lang", $result, time() + $cookie_days*24*60*60, "/");
+  }
+  return $result;
+}
+
+// Convert a string from the locale encoding to the output encoding.
+function locale_to_unicode($s) {
+  global $encoding;
+  $locale_encoding = nl_langinfo(CODESET);
+  $s = iconv($locale_encoding, $encoding, $s);
+  return $s;
+}
+?>