Editor selects text that was typed at a tab-stop when shift-tabbing back to it

spec/extensions/snippets-spec.coffee

@@ -59,21 +59,21 @@ describe "Snippets extension", ->
           expect(buffer.lineForRow(2)).toBe "go here next:() and finally go here:()"
           expect(buffer.lineForRow(3)).toBe "go here first:()"
           expect(buffer.lineForRow(4)).toBe "    if (items.length <= 1) return items;"
-          expect(editor.getCursorScreenPosition()).toEqual [3, 15]
+          expect(editor.getSelectedBufferRange()).toEqual [[3, 15], [3, 15]]
 
           editor.trigger keydownEvent('tab', target: editor[0])
-          expect(editor.getCursorScreenPosition()).toEqual [2, 14]
+          expect(editor.getSelectedBufferRange()).toEqual [[2, 14], [2, 14]]
           editor.insertText 'abc'
 
           editor.trigger keydownEvent('tab', target: editor[0])
-          expect(editor.getCursorScreenPosition()).toEqual [2, 40]
+          expect(editor.getSelectedBufferRange()).toEqual [[2, 40], [2, 40]]
 
           # tab backwards
           editor.trigger keydownEvent('tab', shiftKey: true, target: editor[0])
-          expect(editor.getCursorScreenPosition()).toEqual [2, 17]
+          expect(editor.getSelectedBufferRange()).toEqual [[2, 14], [2, 17]] # should highlight text typed at tab stop
 
           editor.trigger keydownEvent('tab', shiftKey: true, target: editor[0])
-          expect(editor.getCursorScreenPosition()).toEqual [3, 15]
+          expect(editor.getSelectedBufferRange()).toEqual [[3, 15], [3, 15]]
 
           # shift-tab on first tab-stop does nothing
           editor.trigger keydownEvent('tab', shiftKey: true, target: editor[0])

src/app/anchor-range.coffee

@@ -7,7 +7,7 @@ class AnchorRange
 
   constructor: (@editSession, bufferRange) ->
     bufferRange = Range.fromObject(bufferRange)
-    @startAnchor = @editSession.addAnchorAtBufferPosition(bufferRange.start)
+    @startAnchor = @editSession.addAnchorAtBufferPosition(bufferRange.start, ignoreEqual: true)
     @endAnchor = @editSession.addAnchorAtBufferPosition(bufferRange.end)
 
   getBufferRange: ->
@@ -18,4 +18,4 @@ class AnchorRange
 
   destroy: ->
     @startAnchor.destroy()
-    @endAnchor.destroy()
+    @endAnchor.destroy()

src/app/anchor.coffee

@@ -8,12 +8,17 @@ class Anchor
   bufferPosition: null
   screenPosition: null
 
-  constructor: (@editSession) ->
+  constructor: (@editSession, options = {}) ->
+    { @ignoreEqual } = options
 
   handleBufferChange: (e) ->
     { oldRange, newRange } = e
     position = @getBufferPosition()
-    return if position.isLessThan(oldRange.end)
+
+    if @ignoreEqual
+      return if position.isLessThanOrEqual(oldRange.end)
+    else
+      return if position.isLessThan(oldRange.end)
 
     newRow = newRange.end.row
     newColumn = newRange.end.column

src/app/edit-session.coffee

@@ -237,13 +237,13 @@ class EditSession
   getAnchors: ->
     new Array(@anchors...)
 
-  addAnchor: ->
-    anchor = new Anchor(this)
+  addAnchor: (options) ->
+    anchor = new Anchor(this, options)
     @anchors.push(anchor)
     anchor
 
-  addAnchorAtBufferPosition: (bufferPosition) ->
-    anchor = @addAnchor()
+  addAnchorAtBufferPosition: (bufferPosition, options) ->
+    anchor = @addAnchor(options)
     anchor.setBufferPosition(bufferPosition)
     anchor