🐎 Use direct comparison instead of regex

src/editor.coffee

@@ -835,8 +835,11 @@ class Editor extends Model
   usesSoftTabs: ->
     for bufferRow in [0..@buffer.getLastRow()]
       continue if @displayBuffer.tokenizedBuffer.lineForScreenRow(bufferRow).isComment()
-      if match = @buffer.lineForRow(bufferRow).match(/^[ \t]/)
-        return match[0][0] is ' '
+
+      line = @buffer.lineForRow(bufferRow)
+      return true  if line[0] is ' '
+      return false if line[0] is '\t'
+
     undefined
 
   # Public: Returns a {Boolean} indicating whether softTabs are enabled for this