diff --git a/tabeleditor.inc.php b/tabeleditor.inc.php
index 87ed9a7..bf613bc 100644
--- a/tabeleditor.inc.php
+++ b/tabeleditor.inc.php
@@ -4,84 +4,83 @@
 //   2019 Kwansei Gakuin University comp-staff
 // License: GPL v2
 // Tabeleditor plugin
-// naming candidate  "TabetElroid" -> "TableEditor", "Tabeleditor"
+// naming candidate  "TableEditor", "TabetElroid" -> "Tabetemas", "Tabeleditor"
 
 function plugin_tabeleditor_action()
 {
-	global $vars, $now, $_title_updated, $_no_name;
-	global $_msg_tabeleditor_collided, $_title_tabetemas_collided;
-	global $_tabeleditor_plugin_fail_msg;
+    global $vars, $now, $_title_updated, $_no_name;
+    global $_msg_tabeleditor_collided, $_title_tabeleditor_collided;
+    global $_tabeleditor_plugin_fail_msg;
 
-	if (PKWK_READONLY) die_message('PKWK_READONLY prohibits editing');
+    if (PKWK_READONLY) die_message('PKWK_READONLY prohibits editing');
 
-	$head = '';
-	$match = array();
+    $head = '';
+    $match = array();
 
+    $tabeleditor_added = TRUE;
+    $cell_counter = 0;
+    foreach (get_source($vars['refer']) as $line) {
+        if (strpos($line, "|") === 0) {
+            preg_match("/([fh])$/", $line, $match);
+            $postamble = $match[1];
+            $line = preg_replace("/^\\|(.*)\\|[fh]?$[^|]*/", "$1", $line);
+            $postdata .= "|";
+            foreach(explode("|", $line) as $cell) {
+                if (strpos($cell,"~")===FALSE) {
+                    $entry_name = "__buttons_" . $cell_counter;
+                    //$postdata .= $cell_counter;
+                    if ($vars[$entry_name]!==null) { 
+                        $postdata .= $vars[$entry_name] . "|";
+                    } else {
+                        $postdata .= $cell . "|";
+                    }
+                    $cell_counter++;
+                } else {
+                    $postdata .= $cell . "|";
+                }
+            }
+            $postdata .= "$postamble\n";
+        } else {
+            $postdata .= $line;
+        }
+    }
 
-	$tabeleditor_added = TRUE;
-	$cell_counter = 0;
-	foreach (get_source($vars['refer']) as $line) {
-		if (strpos($line, "|") === 0) {
-			preg_match("/([fh])$/", $line, $match);
-			$postamble = $match[1];
-			$line = preg_replace("/^\\|(.*)\\|[fh]?$[^|]*/", "$1", $line);
-			$postdata .= "|";
-			foreach(explode("|", $line) as $cell) {
-				if (strpos($cell,"~")===FALSE) {
-					$entry_name = "__buttons_" . $cell_counter;
-					//$postdata .= $cell_counter;
-					if ($vars[$entry_name]!==null) { 
-						$postdata .= $vars[$entry_name] . "|";
-					} else {
-						$postdata .= $cell . "|";
-					}
-					$cell_counter++;
-				} else {
-					$postdata .= $cell . "|";
-				}
-			}
-			$postdata .= "$postamble\n";
-		} else {
-			$postdata .= $line;
-		}
-	}
-
-	$title = $_title_updated;
-	$body = $postdata;
-	if ($tabeleditor_added) {
-		// new tabeleditor added
-		if (md5(get_source($vars['refer'], TRUE, TRUE)) !== $vars['digest']) {
-			$title = $_title_tabeleditor_collided;
-			$body  = $_msg_tabeleditor_collided . make_pagelink($vars['refer']);
-		}
-		page_write($vars['refer'], $postdata);
-	} else {
-		// failed to add the tabeleditor
-		$title = $_title_tabeleditor_collided;
-		$body  = $_tabeleditor_plugin_fail_msg . make_pagelink($vars['refer']);
-	}
-	$retvars['msg']  = $vars['name'];
-	$retvars['body'] = $vars['body'];
-	$vars['page'] = $vars['refer'];
-	return $retvars;
+    $title = $_title_updated;
+    $body = $postdata;
+    if ($tabeleditor_added) {
+        // new table created
+        if (md5(get_source($vars['refer'], TRUE, TRUE)) !== $vars['digest']) {
+            $title = $_title_tabeleditor_collided;
+            $body  = $_msg_tabeleditor_collided . make_pagelink($vars['refer']);
+        }
+        page_write($vars['refer'], $postdata);
+    } else {
+        // failed to add new table
+        $title = $_title_tabeleditor_collided;
+        $body  = $_tabeleditor_plugin_fail_msg . make_pagelink($vars['refer']);
+    }
+    $retvars['msg']  = $vars['name'];
+    $retvars['body'] = $vars['body'];
+    $vars['page'] = $vars['refer'];
+    return $retvars;
 }
 
 function plugin_tabeleditor_convert()
 {
-	global $vars, $digest, $_btn_tabeleditor, $_btn_name, $_msg_tabetemas;
-	static $numbers = array();
+    global $vars, $digest, $_btn_tabeleditor, $_btn_name, $_msg_tabeleditor;
+    static $numbers = array();
 
-	if (PKWK_READONLY) return ''; // Show nothing
+    if (PKWK_READONLY) return ''; // Show nothing
 
-	$page = $vars['page'];
-	if (! isset($numbers[$page])) $numbers[$page] = 0;
-	$tabeleditor_no = $numbers[$page]++;
+    $page = $vars['page'];
+    if (! isset($numbers[$page])) $numbers[$page] = 0;
+    $tabeleditor_no = $numbers[$page]++;
 
-	$options = func_num_args() ? func_get_args() : array();
+    $options = func_num_args() ? func_get_args() : array();
 
-	$script = get_script_uri();
-	$s_page = htmlsc($page);
-	$string = <<<EOD
+    $script = get_script_uri();
+    $s_page = htmlsc($page);
+    $string = <<<EOD
 <style>
  .style_td input {
     font-size: 100%;
@@ -94,19 +93,19 @@
 
     e.target.parentNode.style = "";
     if (e.target.parentNode.initial_value != value) {
-	e.target.parentNode.style.color= "red";
-	document.getElementById("__buttons").style.visibility = "visible";
+    e.target.parentNode.style.color= "red";
+    document.getElementById("__buttons").style.visibility = "visible";
     } else {
-	e.target.parentNode.style.color= "";
+    e.target.parentNode.style.color= "";
     }
 
     var entry_name = "__buttons_"+e.target.parentNode.cellid;
     var entry = document.getElementById(entry_name);
     if (!entry) {
-	entry = document.createElement("input");
-	entry.type = "hidden";
-	entry.name = entry.id = entry_name;
-	document.getElementById("tabform").appendChild(entry);
+    entry = document.createElement("input");
+    entry.type = "hidden";
+    entry.name = entry.id = entry_name;
+    document.getElementById("tabform").appendChild(entry);
     } 
     entry.value = value;
 
@@ -117,8 +116,8 @@
   function key_handler(e) {
     if (e.keyCode == 13) e.target.blur();
     else if (e.keyCode == 27) {
-	e.target.value = e.target.parentNode.initial_value;
-	e.target.blur();
+    e.target.value = e.target.parentNode.initial_value;
+    e.target.blur();
     }
   }
   function click_handler(e) {
@@ -137,7 +136,7 @@
     elm.style.width = e.target.clientWidth + "px";
     elm.style.height = e.target.clientHeight + "px";
     elm.style.outline = elm.style.margin = 
-	elm.style.padding = elm.style.border = "0px";
+    elm.style.padding = elm.style.border = "0px";
     elm.onblur = blur_handler;
     elm.onkeypress = key_handler;
 
@@ -170,6 +169,6 @@
 </form>
 EOD;
 
-	return $string;
+    return $string;
 }