From a9e0e261dcd6318ccc4183ebabf1f864d8ed435b Mon Sep 17 00:00:00 2001
From: Marcin Kulik <marcin.kulik@gmail.com>
Date: Sun, 12 Feb 2012 21:49:46 +0100
Subject: [PATCH] Extract line initialization and removal to separate methods

---
 app/assets/javascripts/player/vt.js.coffee | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/app/assets/javascripts/player/vt.js.coffee b/app/assets/javascripts/player/vt.js.coffee
index f76ea97..de0b562 100644
--- a/app/assets/javascripts/player/vt.js.coffee
+++ b/app/assets/javascripts/player/vt.js.coffee
@@ -530,14 +530,20 @@ class AsciiIo.VT
   scrollDown: (n = 1) ->
     @deleteLine n, @topMargin
 
+  _addEmptyLine: (l) ->
+    @lineData.splice l, 0, []
+    @clearLineData l
+
+  _removeLine: (l) ->
+    @lineData.splice l, 1
+
   insertLine: (n, l = @cursorY) ->
     return unless @inScrollRegion()
 
     i = 0
     while i < n
-      @lineData.splice @bottomMargin, 1
-      @lineData.splice l, 0, []
-      @clearLineData l
+      @_removeLine @bottomMargin
+      @_addEmptyLine l
       i++
 
     @updateScreen()
@@ -547,9 +553,8 @@ class AsciiIo.VT
 
     i = 0
     while i < n
-      @lineData.splice l, 1
-      @lineData.splice @bottomMargin, 0, []
-      @clearLineData @bottomMargin
+      @_removeLine l
+      @_addEmptyLine @bottomMargin
       i++
 
     @updateScreen()