diff --git a/highlighter.inc.php b/highlighter.inc.php
index 87fcc04..905d663 100644
--- a/highlighter.inc.php
+++ b/highlighter.inc.php
@@ -6,29 +6,29 @@
 // highlighter plugin
 
 function plugin_highlighter_inline() {
-    $args = func_get_args();
-    $argc = func_num_args();
-    $style= "background: repeating-linear-gradient(-45deg, #ffcce7, #ffcce7 3px,#ffe9f4 3px, #ffe9f4 7px);";//default
+	$args	= func_get_args();
+    $style  = "background: repeating-linear-gradient(-45deg, #ffcce7, #ffcce7 3px,#ffe9f4 3px, #ffe9f4 7px);";//default
 
+    $len = func_num_args();
 
-    if ($argc == 2) {
+    if (func_num_args() == 2) {
         $style = $args[0];
         $pat    = $args[1];
     } else {
         $pat    = $args[0];
     }
 
-    if ($argc <= 2) {
+    if (func_num_args() <= 2) {
         $ret = "<span style='$style'>$pat</span>";
         return $ret;
     }
 
-    return FALSE;
+	return FALSE;
 }
 
 function plugin_highlighter_convert() {
-    $args  = func_get_args();
     $argc  = func_num_args();
+	$args  = func_get_args();
     $style = "background: repeating-linear-gradient(-45deg, #ffcce7, #ffcce7 3px,#ffe9f4 3px, #ffe9f4 7px);";//default
     $wholeline = false;
     if (($args[$argc-1] == "true")) {
@@ -50,21 +50,21 @@
         $ret = <<<EOT
 <script type="text/javascript">
     (function() {
-    let lst = document.getElementsByTagName("li");
-    let pat = "$pat";
-    for (let i = 0; i< lst.length; i++) {
-        if (lst[i].parentNode.classList.contains("list1")){
-        var text = lst[i].innerHTML;
-        var reg = new RegExp(pat, "g");
-        lst[i].innerHTML = text.replace(reg, '<span style="$style">$&</span>');
+        let lst = document.getElementsByTagName("li");
+        let pat = "$pat";
+        for (let i = 0; i< lst.length; i++) {
+            if (lst[i].parentNode.classList.contains("list1")){
+                var text = lst[i].innerHTML;
+                var reg = new RegExp(pat, "g");
+                lst[i].innerHTML = text.replace(reg, '<span style="$style">$&</span>');
+            }
         }
-    }
     })()
  </script>
 EOT;
         return $ret;
 
-    } else {
+	} else {
         $pat = $args[0];
         $sytle = $args[1];
 
@@ -74,22 +74,23 @@
     let pat = "$pat";
     let style = "background: green;"
     for (let i = 0; i< lst.length; i++) {
-    if (lst[i].parentNode.classList.contains("list1")){
-        var reg = RegExp(pat);
-        var text = lst[i].innerHTML;
+        if (lst[i].parentNode.classList.contains("list1")){
+            var reg = RegExp(pat);
+            var text = lst[i].innerHTML;
 
-        if (text.match(reg)) {
-        lst[i].style = "$args[1]";
+            if (text.match(reg)) {
+                lst[i].style = "$args[1]";
+            }
         }
-    }
 
     }
  </script>
 EOT;
         return $ret;
+
     }
 
-    return FALSE;
+	return FALSE;
 }
 
 function plugin_highlighter_init() {