cvs: phpweb /include langchooser.inc

goba Fri Jan 3 15:59:41 2003 EDT Added files: /phpweb/include langchooser.inc Log: New code to choose really preferred language, with fallbacks to everything imaginable. This code will be used in the future to display all language dependent features in the right preferred language. Index: phpweb/include/langchooser.inc +++ phpweb/include/langchooser.inc <?php /* This script tries to guess what language to use for language dependent operations (lookup, search, books page display, etc.), considering all possible factors affecting language selection. After this script run, $LANG is set to the preferred language, or is the empty string, if no manual is available on the current mirror site. */ // Empty languages array, and preferred language $LANGS = array(); $LANG = ''; // Specified for the request (GET/POST parameter) if (isset($_REQUEST['lang'])) { language_add($_REQUEST['lang']); } // Specified in a shortcut URL (eg. /en/echo or /pt_br/echo) if (preg_match("!^/(\\w{2}(_\\w{2})?)/!", $_SERVER['REQUEST_URI'], $flang)) { language_add($flang[1]); } // Specified in a manual URL (eg. manual/en/ or manual/pt_br/) if (preg_match("!^/manual/(\\w{2}(_\\w{2})?)(/|$)!", $_SERVER['REQUEST_URI'], $flang)) { language_add($flang[1]); } // USER PREFERENCE HANDLING SHOULD BE ADDED HERE IN THE FUTURE // Language preferred by this mirror site language_add(default_language()); // Last default language is English language_add("en"); // Try to find out what language is available on this mirror. // As most of the language dependant operations involve manual // page display (lookup, search, shortcuts), we will check for // the index file of manuals. foreach ($LANGS as $language) { if (file_exists($_SERVER['DOCUMENT_ROOT'] . "/manual/$language/index.php")) { $LANG = $language; break; } } // Do not pollute variable namespace unset($LANGS); unset($language); // Add a language to the possible languages' list function language_add($langcode) { global $LANGS; // Make language code lowercase $langcode = strtolower($langcode); // The Brazilian Portuguese code needs special attention if ($langcode == 'pt_br') { $langcode = 'pt_BR'; } // Append language code in priority order // if it is not there already [try to lower number // of file_exists() calls to minumum] if (!in_array($langcode, $LANGS)) { $LANGS[] = $langcode; } } ?>