From e475245b8d3fcd9cd436bcee4f1247cf4b464e16 Mon Sep 17 00:00:00 2001
From: Miles Lott <milosch@alumni.egroupware.org>
Date: Fri, 15 Jun 2001 21:23:46 +0000
Subject: [PATCH] Add experimental file-based translation class.  Not for
 general consumption, but it almost works...

---
 phpgwapi/inc/class.translation_file.inc.php | 160 ++++++++++++++++++++
 1 file changed, 160 insertions(+)
 create mode 100644 phpgwapi/inc/class.translation_file.inc.php

diff --git a/phpgwapi/inc/class.translation_file.inc.php b/phpgwapi/inc/class.translation_file.inc.php
new file mode 100644
index 0000000000..dee00a4b5a
--- /dev/null
+++ b/phpgwapi/inc/class.translation_file.inc.php
@@ -0,0 +1,160 @@
+<?php
+  /**************************************************************************\
+  * phpGroupWare API - Translation class for phpgw lang files                *
+  * This file written by Miles Lott <milosch@phpgroupware.org>               *
+  * Handles multi-language support using flat files                          *
+  * -------------------------------------------------------------------------*
+  * This library is part of the phpGroupWare API                             *
+  * http://www.phpgroupware.org/api                                          * 
+  * ------------------------------------------------------------------------ *
+  * This library is free software; you can redistribute it and/or modify it  *
+  * under the terms of the GNU Lesser General Public License as published by *
+  * the Free Software Foundation; either version 2.1 of the License,         *
+  * or any later version.                                                    *
+  * This library is distributed in the hope that it will be useful, but      *
+  * WITHOUT ANY WARRANTY; without even the implied warranty of               *
+  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.                     *
+  * See the GNU Lesser General Public License for more details.              *
+  * You should have received a copy of the GNU Lesser General Public License *
+  * along with this library; if not, write to the Free Software Foundation,  *
+  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA            *
+  \**************************************************************************/
+
+  /* $Id$ */
+
+	// This should be considered experimental.  It works, at the app level.
+	// But, for admin and prefs it really slows things down.  See the note
+	// in the translate() function.
+	// To use, set $phpgw_info["server"]["translation_system"] = "file"; in
+	// class.translation.inc.php
+	class translation
+	{
+		var $langarray;   // Currently loaded translations
+		var $loaded_apps = array(); // Loaded app langs
+
+		/*!
+		@function translate
+		@abstract Translate phrase to user selected lang
+		@param $key  phrase to translate
+		@param $vars vars sent to lang function, passed to us
+		*/
+		function translation()
+		{
+			global $phpgw_info, $lang;
+			$this->add_app('phpgwapi',$lang);
+		}
+
+		function isin_array($needle,$haystack)
+		{
+			while (list ($k,$v) = each($haystack))
+			{
+				if ($v == $needle)
+				{
+					return True;
+				}
+			}
+			return False;
+		}
+
+		function translate($key, $vars=False) 
+		{
+			global $phpgw_info, $lang;
+
+			if (!$this->isin_array($phpgw_info['flags']['currentapp'],$this->loaded_apps) &&
+				$phpgw_info['flags']['currentapp'] != 'home')
+			{
+				//echo '<br>loading app "' . $phpgw_info['flags']['currentapp'] . '" for the first time.';
+				$this->add_app($phpgw_info['flags']['currentapp'],$lang);
+			}
+			elseif ($phpgw_info['flags']['currentapp'] == 'admin' ||
+				$phpgw_info['flags']['currentapp'] == 'preferences')
+			{
+				// This is done because for these two apps, all langs must be loaded.
+				// Note we cannot load for navbar, since it would slow down EVERY page.
+				// This is true until all common/admin/prefs langs are in the api file only.
+				@ksort($phpgw_info['apps']);
+				while(list($x,$app) = each($phpgw_info['apps']))
+				{
+					if (!$this->isin_array($app['name'],$this->loaded_apps))
+					{
+						//echo '<br>loading app "' . $app['name'] . '" for the first time.';
+						$this->add_app($app['name'],$lang);
+					}
+				}
+			}
+
+			if (!$vars)
+			{
+				$vars = array();
+			}
+
+			$ret = $key;
+
+			if (isset($this->langarray[strtolower ($key)]) && $this->langarray[strtolower ($key)])
+			{
+				$ret = $this->langarray[strtolower ($key)];
+			}
+			else
+			{
+				$ret = $key."*";
+			}
+			$ndx = 1;
+			while( list($key,$val) = each( $vars ) )
+			{
+				$ret = preg_replace( "/%$ndx/", $val, $ret );
+				++$ndx;
+			}
+			return $ret;
+		}
+
+		/*!
+		@function add_app
+		@abstract loads all app phrases into langarray
+		@param $lang	user lang variable (defaults to en)
+		*/
+		function add_app($app,$lang='')
+		{
+			global $phpgw_info;
+
+			define('SEP',filesystem_separator());
+
+			//echo '<br>add_app(): called with app="' . $app . '", lang="' . $userlang . '"';
+			if (!isset($lang) || !$lang)
+			{
+				if (isset($phpgw_info['user']['preferences']['common']['lang']) &&
+					$phpgw_info['user']['preferences']['common']['lang'])
+				{
+					$userlang = $phpgw_info['user']['preferences']['common']['lang'];
+				}
+				else
+				{
+					$userlang = 'en';
+				}
+			}
+			else
+			{
+				$userlang = $lang;
+			}
+
+			$fn = PHPGW_SERVER_ROOT . SEP . $app . SEP . 'setup' . SEP . 'phpgw_' . $userlang . '.lang';
+			if (!file_exists($fn))
+			{
+				$fn = PHPGW_SERVER_ROOT . SEP . $app . SEP . 'setup' . SEP . 'phpgw_en.lang';
+			}
+
+			if (file_exists($fn))
+			{
+				$fp = fopen($fn,'r');
+				while ($data = fgets($fp,8000))
+				{
+					list($message_id,$app_name,$null,$content) = explode("\t",$data);
+					//echo '<br>add_app(): adding phrase: $this->langarray["'.$message_id.'"]=' . trim($content);
+					$this->langarray[$message_id] = trim($content);
+				}
+				fclose($fp);
+			}
+			// stuff class array listing apps that are included already
+			$this->loaded_apps[] = $app;
+		}
+	}
+?>