1 files changed, 143 insertions, 0 deletions
diff --git a/include/language.php b/include/language.php
index aa7fce04c..9cde82903 100644
--- a/include/language.php
+++ b/include/language.php
@@ -1,6 +1,149 @@
 <?php
 
 
+/**
+ * translation support
+ */
+
+
+/**
+ *
+ * Get the language setting directly from system variables, bypassing get_config()
+ * as database may not yet be configured.
+ * 
+ * If possible, we use the value from the browser.
+ *
+ */
+
+
+if(! function_exists('get_browser_language')) {
+function get_browser_language() {
+
+	if (x($_SERVER,'HTTP_ACCEPT_LANGUAGE')) {
+	    // break up string into pieces (languages and q factors)
+    	preg_match_all('/([a-z]{1,8}(-[a-z]{1,8})?)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i', 
+			$_SERVER['HTTP_ACCEPT_LANGUAGE'], $lang_parse);
+
+    	if (count($lang_parse[1])) {
+        	// create a list like "en" => 0.8
+        	$langs = array_combine($lang_parse[1], $lang_parse[4]);
+    	
+        	// set default to 1 for any without q factor
+        	foreach ($langs as $lang => $val) {
+            	if ($val === '') $langs[$lang] = 1;
+        	}
+
+        	// sort list based on value	
+        	arsort($langs, SORT_NUMERIC);
+    	}
+	}
+
+	if(isset($langs) && count($langs)) {
+		foreach ($langs as $lang => $v) {
+			if(file_exists("view/$lang") && is_dir("view/$lang")) {
+				$preferred = $lang;
+				break;
+			}
+		}
+	}
+
+	if(isset($preferred))
+		return $preferred;
+
+    $a = get_app();
+	return ((isset($a->config['system']['language'])) ? $a->config['system']['language'] : 'en');
+}}
+
+
+function push_lang($language) {
+	global $lang, $a;
+
+	$a->langsave = $lang;
+
+	if($language === $lang)
+		return;
+
+	if(isset($a->strings) && count($a->strings)) {
+		$a->stringsave = $a->strings;
+	}
+	$a->strings = array();
+	load_translation_table($language);
+	$lang = $language;
+}
+
+function pop_lang() {
+	global $lang, $a;
+
+	if($lang === $a->langsave)
+		return;
+
+	if(isset($a->stringsave))
+		$a->strings = $a->stringsave;
+	else
+		$a->strings = array();
+
+	$lang = $a->langsave;
+}
+
+
+// load string translation table for alternate language
+
+if(! function_exists('load_translation_table')) {
+function load_translation_table($lang) {
+	global $a;
+
+	if(file_exists("view/$lang/strings.php")) {
+		include("view/$lang/strings.php");
+	}
+	else
+		$a->strings = array();
+}}
+
+// translate string if translation exists
+
+if(! function_exists('t')) {
+function t($s) {
+
+	$a = get_app();
+
+	if(x($a->strings,$s)) {
+		$t = $a->strings[$s];
+		return is_array($t)?$t[0]:$t;
+	}
+	return $s;
+}}
+
+if(! function_exists('tt')){
+function tt($singular, $plural, $count){
+	global $lang;
+	$a = get_app();
+
+	if(x($a->strings,$singular)) {
+		$t = $a->strings[$singular];
+		$f = 'string_plural_select_' . str_replace('-','_',$lang);
+		if(! function_exists($f))
+			$f = 'string_plural_select_default';
+		$k = $f($count);
+		return is_array($t)?$t[$k]:$t;
+	}
+	
+	if ($count!=1){
+		return $plural;
+	} else {
+		return $singular;
+	}
+}}
+
+// provide a fallback which will not collide with 
+// a function defined in any language file 
+
+if(! function_exists('string_plural_select_default')) {
+function string_plural_select_default($n) {
+	return ($n != 1);
+}}
+
+
+
 function detect_language($s) {
 
 	$detected_languages = array(