diff --git a/highlighter.inc.php b/highlighter.inc.php
index 2319079..87fcc04 100644
--- a/highlighter.inc.php
+++ b/highlighter.inc.php
@@ -6,91 +6,90 @@
 // highlighter plugin
 
 function plugin_highlighter_inline() {
-	$args	= func_get_args();
-	$style  = "background: repeating-linear-gradient(-45deg, #ffcce7, #ffcce7 3px,#ffe9f4 3px, #ffe9f4 7px);";//default
+    $args = func_get_args();
+    $argc = func_num_args();
+    $style= "background: repeating-linear-gradient(-45deg, #ffcce7, #ffcce7 3px,#ffe9f4 3px, #ffe9f4 7px);";//default
 
-	$len = func_num_args();
 
-	if (func_num_args() == 2) {
-		$style = $args[0];
-		$pat    = $args[1];
-	} else {
-		$pat    = $args[0];
-	}
+    if ($argc == 2) {
+        $style = $args[0];
+        $pat    = $args[1];
+    } else {
+        $pat    = $args[0];
+    }
 
-	if (func_num_args() <= 2) {
-		$ret = "<span style='$style'>$pat</span>";
-		return $ret;
-	}
+    if ($argc <= 2) {
+        $ret = "<span style='$style'>$pat</span>";
+        return $ret;
+    }
 
-	return FALSE;
+    return FALSE;
 }
 
 function plugin_highlighter_convert() {
-	$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")) {
-		$wholeline = true;
-	} else {
-		$wholelien = false;
-	}
+    $args  = func_get_args();
+    $argc  = func_num_args();
+    $style = "background: repeating-linear-gradient(-45deg, #ffcce7, #ffcce7 3px,#ffe9f4 3px, #ffe9f4 7px);";//default
+    $wholeline = false;
+    if (($args[$argc-1] == "true")) {
+        $wholeline = true;
+    } else {
+        $wholelien = false;
+    }
 
-	if ($wholeline) {
-		$argc -= 1;
-	}
+    if ($wholeline) {
+        $argc -= 1;
+    }
 
-	if ($argc == 2) {
-		$style = $args[1];
-	}
+    if ($argc == 2) {
+        $style = $args[1];
+    }
 
-	if (! $wholeline) {
-		$pat    = $args[0];
-		$ret = <<<EOT
+    if (! $wholeline) {
+        $pat    = $args[0];
+        $ret = <<<EOT
 <script type="text/javascript">
     (function() {
-	let lst = document.getElementsByTagName("li");
-	let pat = "$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;
+        return $ret;
 
-	} else {
-		$pat = $args[0];
-		$sytle = $args[1];
+    } else {
+        $pat = $args[0];
+        $sytle = $args[1];
 
-		$ret = <<<EOT
+        $ret = <<<EOT
 <script type="text/javascript">
     let lst = document.getElementsByTagName("li");
     let pat = "$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 $ret;
+    }
 
-	}
-
-	return FALSE;
+    return FALSE;
 }
 
 function plugin_highlighter_init() {