Fix bugs of inserting braces after hash

lib/bracket-matcher.coffee

@@ -198,7 +198,13 @@ class BracketMatcher
         'comment.documentation.heredoc.elixir'
       ]
       @interpolatedStringSelector = SelectorCache.get(segments.join(' | '))
-    @interpolatedStringSelector.matches(@editor.getLastCursor().getScopeDescriptor().getScopesArray())
+
+    lastCursor = @editor.getLastCursor()
+
+    return false if lastCursor.isAtBeginningOfLine() or lastCursor.isAtEndOfLine()
+
+    @interpolatedStringSelector.matches(lastCursor.getScopeDescriptor().getScopesArray()) and
+    @interpolatedStringSelector.matches(@editor.scopeDescriptorForBufferPosition([lastCursor.getBufferRow(), lastCursor.getBufferColumn() - 1]).getScopesArray())
 
   getInvertedPairedCharacters: ->
     return @invertedPairedCharacters if @invertedPairedCharacters

spec/bracket-matcher-spec.coffee

@@ -874,6 +874,33 @@ describe "bracket matching", ->
           editor.undo()
           expect(editor.getText()).toBe 'foo = ""'
 
+        it "should not insert curly braces right before doubly quoted string", ->
+          editor.insertText "foo = "
+          editor.insertText '"'
+          editor.moveLeft()
+          editor.insertText "#"
+          expect(editor.getText()).toBe 'foo = #""'
+
+        it "should not insert curly braces right after double quoted string", ->
+          editor.insertText "foo =  "
+          editor.moveLeft()
+          editor.insertText '"'
+          editor.moveRight()
+          editor.insertText "#"
+          expect(editor.getText()).toBe 'foo = ""# '
+
+        it "should not insert curly braces right before doubly quoted string at the beginning of a line", ->
+          editor.insertText '"'
+          editor.moveLeft()
+          editor.insertText "#"
+          expect(editor.getText()).toBe '#""'
+
+        it "should not insert curly braces right after doubly quoted string at the end of a line", ->
+          editor.insertText '"'
+          editor.moveRight()
+          editor.insertText "#"
+          expect(editor.getText()).toBe '""#'
+
         it "should not insert curly braces inside singly quoted string", ->
           editor.insertText "foo = "
           editor.insertText "'"