diff --git a/editor.cpp b/editor.cpp
index f945018..a64e221 100644
--- a/editor.cpp
+++ b/editor.cpp
@@ -17,13 +17,6 @@ void Editor::clear_line(count_type r) {
 	::move(r - file_offset, 0);
 	clrtoeol();
 }
-// Split line
-void Editor::split_line(position p) {
-	string line = file.get_line(p.r);
-	string newline = line.substr(p.c, line.size());
-	file.remove(p, line.size()-p.c);
-	file.insert(p.r+1, newline);
-}
 // Print line
 void Editor::print_line(count_type r) {
 	clear_line(r);
@@ -262,7 +255,7 @@ bool Editor::take_action() {
 					print_line(file_offset + cur.r);
 					break;
 				case ENTER:
-					split_line(cur + file_offset);
+					file.split_line(cur + file_offset);
 					print_file(file_offset + cur.r++);
 					jump_line_end();
 					break;
diff --git a/everything.hpp b/everything.hpp
index ea71a90..c5be6db 100644
--- a/everything.hpp
+++ b/everything.hpp
@@ -54,6 +54,7 @@ public:
 	void set(position p, char ch);
 	void insert(position p, string t);
 	void remove(position p, count_type len = 1);
+	void split_line(position p);
 };
 
 //// Selection
@@ -80,22 +81,24 @@ public:
 enum mode_type { INSERT, NORMAL, SELECT };
 
 class Editor{
+	// Editor state
 	mode_type mode;
-	Treap file; // file representation
+	position cur;
+	count_type file_offset;
+
+	// File
 	string filename;
-	position cur; // cursor position
-	count_type file_offset; // terminal file offset
-	
-	// Selections
-	string last_find, last_replace; // last find/replace inputs
+	Treap file;
+
+	// Selection
+	string last_find, last_replace;
 	Selection selection;
 
-	// Write to file
 	void save();
+
 	// Printing
 	void clear_line(count_type r);
 	void print_line(count_type r);
-	void split_line(position p);
 
 	// User input
 	void print_input(string text);
@@ -116,10 +119,12 @@ class Editor{
 public:
 	Editor(string _filename, Treap &_file) {
 		mode = NORMAL;
-		filename = _filename;
-		file = _file;
 		cur = {0, 0};
 		file_offset = 0;
+
+		filename = _filename;
+		file = _file;
+
 		selection = Selection(&file);
 	}
 	void print_file(count_type start = 0);
diff --git a/selection.cpp b/selection.cpp
index df1a9c2..5139a2a 100644
--- a/selection.cpp
+++ b/selection.cpp
@@ -46,13 +46,8 @@ void Selection::paste_selection(position p) {
 	file->insert(p, content.get(content.size()-1));
 	if(content.size() == 1) return;
 
-	// Split line
-	string line = file->get_line(p.r);
-	string newline = line.substr(p.c, line.size());
-	file->remove(p, line.size()-p.c);
-	file->insert(p.r+1, newline);
-
 	// Insert first line in front and split
+	file->split_line(p);
 	file->insert(p, content.get(0));
 	if(content.size() == 2) return;
 
diff --git a/treap.cpp b/treap.cpp
index 331b977..0688f5a 100644
--- a/treap.cpp
+++ b/treap.cpp
@@ -110,6 +110,7 @@ string Treap::get_line(count_type r, bool substitute_tab) {
 	}
 	return ret;
 }
+// TODO tabs are a grid, not just N tabs
 count_type Treap::get_tab_offset(position p) {
 	count_type tab_offset = 0;
 	string line = get_line(p.r, false);
@@ -130,3 +131,10 @@ void Treap::insert(position p, string t) {
 void Treap::remove(position p, count_type len) {
 	find(p.r)->text.erase(p.c-get_tab_offset(p),len);
 }
+// Split line
+void Treap::split_line(position p) {
+	string line = get_line(p.r);
+	string newline = line.substr(p.c, line.size());
+	remove(p, line.size()-p.c);
+	insert(p.r+1, newline);
+}