When an identical closing bracket is inserted, don't insert a new character and move cursor to the right.

spec/app/language-mode-spec.coffee

@@ -39,6 +39,16 @@ describe "LanguageMode", ->
           editSession.insertText "'"
           expect(buffer.lineForRow(0)).toMatch /^''/
 
+      describe "when ) is inserted before a )", ->
+        describe "when there is whitespace after the )", ->
+          it "moves the cursor one column to the right instead of inserting a new )", ->
+            editSession.buffer.setText("")
+            editSession.insertText '() '
+            editSession.setCursorBufferPosition([0, 1])
+            editSession.insertText ')'
+            expect(buffer.lineForRow(0)).toBe "() "
+            expect(editSession.getCursorBufferPosition().column).toBe 2
+
   describe "javascript", ->
     beforeEach ->
       editSession = fixturesProject.buildEditSessionForPath('sample.js', autoIndent: false)

src/app/language-mode.coffee

@@ -17,7 +17,13 @@ class LanguageMode
     @aceAdaptor = new AceAdaptor(@editSession)
 
     _.adviseBefore @editSession, 'insertText', (text) =>
-      if matchingCharacter = @matchingCharacters[text]
+      cursorBufferPosition = @editSession.getCursorBufferPosition()
+      nextCharachter = @editSession.getTextInBufferRange([cursorBufferPosition, cursorBufferPosition.add([0, 1])])
+
+      if @isCloseBracket(text) and text == nextCharachter
+        @editSession.moveCursorRight()
+        false
+      else if matchingCharacter = @matchingCharacters[text]
         @editSession.insertText text + matchingCharacter
         @editSession.moveCursorLeft()
         false
@@ -35,6 +41,19 @@ class LanguageMode
       else 'text'
     new (require("ace/mode/#{modeName}").Mode)
 
+  isOpenBracket: (string) ->
+    @pairedCharacters[string]?
+
+  isCloseBracket: (string) ->
+    @getInvertedPairedCharacters()[string]?
+
+  getInvertedPairedCharacters: ->
+    return @invertedPairedCharacters if @invertedPairedCharacters
+    @invertedPairedCharacters = {}
+    for open, close of @matchingCharacters
+      @invertedPairedCharacters[close] = open
+    @invertedPairedCharacters
+
   toggleLineCommentsInRange: (range) ->
     range = Range.fromObject(range)
     @aceMode.toggleCommentLines(@tokenizedBuffer.stateForRow(range.start.row), @aceAdaptor, range.start.row, range.end.row)