escape smiley conversion in code and pre blocks

include/text.php

@@ -681,6 +681,9 @@ if(! function_exists('smilies')) {
 function smilies($s, $sample = false) {
 	$a = get_app();
 
+	$s = preg_replace_callback('/<pre>(.*?)<\/pre>/ism','smile_encode',$s);
+	$s = preg_replace_callback('/<code>(.*?)<\/code>/ism','smile_encode',$s);
+
 	$texts =  array( 
 		'&lt;3', 
 		'&lt;/3', 
@@ -777,10 +780,24 @@ function smilies($s, $sample = false) {
 		$s = str_replace($params['texts'],$params['icons'],$params['string']);
 	}
 
+	$s = preg_replace_callback('/<pre>(.*?)<\/pre>/ism','smile_decode',$s);
+	$s = preg_replace_callback('/<code>(.*?)<\/code>/ism','smile_decode',$s);
+
 	return $s;
 
 }}
 
+function smile_encode($m) {
+	return(str_replace($m[1],base64url_encode($m[1]),$m[0]));
+}
+
+function smile_decode($m) {
+	return(str_replace($m[1],base64url_decode($m[1]),$m[0]));
+}
+
+
+
+
 if(! function_exists('day_translate')) {
 function day_translate($s) {
 	$ret = str_replace(array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'),