ctrl-a on an empty line stays on that same line.

Fixes #95

spec/app/edit-session-spec.coffee

@@ -255,9 +255,11 @@ describe "EditSession", ->
         expect(cursor1.getBufferPosition()).toEqual [0,0]
         expect(cursor2.getBufferPosition()).toEqual [1,0]
 
-      it "does not throw an exception on an empty line", ->
-        editSession.setCursorBufferPosition([10, 0])
-        editSession.moveCursorToFirstCharacterOfLine()
+      describe "when triggered ", ->
+        it "does not move the cursor", ->
+          editSession.setCursorBufferPosition([10, 0])
+          editSession.moveCursorToFirstCharacterOfLine()
+          expect(editSession.getCursorBufferPosition()).toEqual [10, 0]
 
     describe ".moveCursorToBeginningOfWord()", ->
       it "moves the cursor to the beginning of the word", ->

spec/app/file-spec.coffee

@@ -106,4 +106,4 @@ describe 'File', ->
         changeHandler.reset()
 
       waitsFor "change event", ->
-        changeHandler.callCount > 0
+        changeHandler.callCount > 0

spec/fixtures/git/working-dir/file.txt

@@ -1 +0,0 @@
-Full of text

src/app/buffer.coffee

@@ -133,11 +133,11 @@ class Buffer
   lineLengthForRow: (row) ->
     @lines[row].length
 
-  rangeForRow: (row) ->
-    if row == @getLastRow()
-      new Range([row, 0], [row, @lineLengthForRow(row)])
-    else
+  rangeForRow: (row, { includeNewline } = {}) ->
+    if includeNewline and row < @getLastRow()
       new Range([row, 0], [row + 1, 0])
+    else
+      new Range([row, 0], [row, @lineLengthForRow(row)])
 
   getLineCount: ->
     @getLines().length

src/app/cursor.coffee

@@ -106,7 +106,8 @@ class Cursor
 
   moveToFirstCharacterOfLine: ->
     position = @getBufferPosition()
-    range = @editSession.bufferRangeForBufferRow(position.row)
+    range = @getCurrentLineBufferRange()
+    console.log range.inspect()
     newPosition = null
     @editSession.scanInRange /^\s*/, range, (match, matchRange) =>
       newPosition = matchRange.end
@@ -116,7 +117,7 @@ class Cursor
 
   skipLeadingWhitespace: ->
     position = @getBufferPosition()
-    range = @editSession.bufferRangeForBufferRow(position.row)
+    range = @getCurrentLineBufferRange()
     endOfLeadingWhitespace = null
     @editSession.scanInRange /^[ \t]*/, range, (match, matchRange) =>
       endOfLeadingWhitespace = matchRange.end
@@ -161,8 +162,8 @@ class Cursor
   getCurrentWordBufferRange: ->
     new Range(@getBeginningOfCurrentWordBufferPosition(allowPrevious: false), @getEndOfCurrentWordBufferPosition(allowNext: false))
 
-  getCurrentLineBufferRange: ->
-    @editSession.bufferRangeForBufferRow(@getBufferRow())
+  getCurrentLineBufferRange: (options) ->
+    @editSession.bufferRangeForBufferRow(@getBufferRow(), options)
 
   getCurrentWordPrefix: ->
     @editSession.getTextInBufferRange([@getBeginningOfCurrentWordBufferPosition(), @getBufferPosition()])

src/app/edit-session.coffee

@@ -139,7 +139,7 @@ class EditSession
   nextNonBlankBufferRow: (bufferRow) -> @buffer.nextNonBlankRow(bufferRow)
   getEofBufferPosition: -> @buffer.getEofPosition()
   getLastBufferRow: -> @buffer.getLastRow()
-  bufferRangeForBufferRow: (row) -> @buffer.rangeForRow(row)
+  bufferRangeForBufferRow: (row, options) -> @buffer.rangeForRow(row, options)
   lineForBufferRow: (row) -> @buffer.lineForRow(row)
   scanInRange: (args...) -> @buffer.scanInRange(args...)
   backwardsScanInRange: (args...) -> @buffer.backwardsScanInRange(args...)

src/app/selection.coffee

@@ -99,19 +99,15 @@ class Selection
     @setBufferRange(@getBufferRange().union(@cursor.getCurrentWordBufferRange()))
 
   selectLine: (row=@cursor.getBufferPosition().row) ->
-    startPosition = [row, 0]
-    if @editSession.getLastBufferRow() == row
-      endPosition = [row, Infinity]
-    else
-      endPosition = [row+1, 0]
-    @setBufferRange [startPosition, endPosition]
-
+    range = @editSession.bufferRangeForBufferRow(row, includeNewline: true)
+    @setBufferRange(range)
     @linewise = true
     @wordwise = false
     @initialScreenRange = @getScreenRange()
 
   expandOverLine: ->
-    @setBufferRange(@getBufferRange().union(@cursor.getCurrentLineBufferRange()))
+    range = @getBufferRange().union(@cursor.getCurrentLineBufferRange(includeNewline: true))
+    @setBufferRange(range)
 
   selectToScreenPosition: (position) ->
     @modifySelection =>