Ctrl-k cuts to the end of the line

src/app/composite-selection.coffee

@@ -136,9 +136,15 @@ class CompositeSeleciton
   selectToEndOfWord: ->
     @expandSelectionsForward (selection) => selection.selectToEndOfWord()
 
+  cutToEndOfLine: ->
+    maintainPasteboard = false
+    @mutateSelectedText (selection) ->
+      selection.cutToEndOfLine(maintainPasteboard)
+      maintainPasteboard = true
+
   cut: ->
     maintainPasteboard = false
-    for selection in @getSelections()
+    @mutateSelectedText (selection) ->
       selection.cut(maintainPasteboard)
       maintainPasteboard = true
 

src/app/editor.coffee

@@ -65,11 +65,12 @@ class Editor extends View
     @on 'select-up', => @selectUp()
     @on 'select-down', => @selectDown()
     @on 'newline', => @insertText("\n")
+    @on 'tab', => @insertTab()
     @on 'backspace', => @backspace()
     @on 'backspace-to-beginning-of-word', => @backspaceToBeginningOfWord()
     @on 'delete', => @delete()
     @on 'delete-to-end-of-word', => @deleteToEndOfWord()
-    @on 'tab', => @insertTab()
+    @on 'cut-to-end-of-line', => @cutToEndOfLine()
     @on 'cut', => @cutSelection()
     @on 'copy', => @copySelection()
     @on 'paste', => @paste()
@@ -401,6 +402,7 @@ class Editor extends View
   backspaceToBeginningOfWord: -> @compositeSelection.backspaceToBeginningOfWord()
   delete: -> @compositeSelection.delete()
   deleteToEndOfWord: -> @compositeSelection.deleteToEndOfWord()
+  cutToEndOfLine: -> @compositeSelection.cutToEndOfLine()
 
   setText: (text) -> @buffer.setText(text)
   getText: -> @buffer.getText()

src/app/keymaps/emacs.coffee

@@ -11,3 +11,4 @@ window.keymap.bindKeys '.editor',
   'ctrl-d': 'delete'
   'alt-h': 'backspace-to-beginning-of-word'
   'alt-d': 'delete-to-end-of-word'
+  'ctrl-k': 'cut-to-end-of-line'

src/app/selection.coffee

@@ -204,6 +204,10 @@ class Selection extends View
   selectToEndOfWord: ->
     @modifySelection => @cursor.moveToEndOfWord()
 
+  cutToEndOfLine: (maintainPasteboard) ->
+    @selectToEndOfLine() if @isEmpty()
+    @cut(maintainPasteboard)
+
   cut: (maintainPasteboard=false) ->
     @copy(maintainPasteboard)
     @delete()